feat(systemd): Update systemd unit-file

Update systemd unit-file to support v3 parameters. Use journald logging as the template example.

.gitattributes

@@ -55,6 +55,23 @@
 *.bat      text eol=crlf
 *.cmd      text eol=crlf
 
+# web frontend stack -- force LF so SRI hashes are always correct
+*.html     text eol=lf
+*.htm      text eol=lf
+*.css      text eol=lf
+*.min.css  text eol=lf
+*.js       text eol=lf
+*.min.js   text eol=lf
+*.php      text eol=lf
+
+# Visual Studio projects (Rider also)
+*.cs     diff=csharp
+*.sln    merge=union
+*.csproj merge=union
+*.vbproj merge=union
+*.fsproj merge=union
+*.dbproj merge=union
+
 # Serialisation
 *.json     text
 *.toml     text
@@ -76,6 +93,8 @@
 # Exclude files from exporting
 #
 
-.gitattributes export-ignore
+.gitattributes  export-ignore
-.gitignore     export-ignore
+.gitignore      export-ignore
-.gitkeep       export-ignore
+.gitkeep        export-ignore
+.idea           export-ignore
+.vscode         export-ignore

.gitignore

@@ -1 +1,35 @@
+#
+# JetBrains exclusions
+#
+
+riderModule.iml
+/_ReSharper.Caches/
+
+# User-specific stuff
+.idea/**/workspace.xml
+.idea/**/tasks.xml
+.idea/**/usage.statistics.xml
+.idea/**/dictionaries
+.idea/**/shelf
+
+# Generated files
+.idea/**/contentModel.xml
+.idea/**/GitCommitMessageStorage.xml
+
+# Sensitive or high-churn files
+.idea/**/dataSources/
+.idea/**/dataSources.ids
+.idea/**/dataSources.local.xml
+.idea/**/sqlDataSources.xml
+.idea/**/dynamic.xml
+.idea/**/uiDesigner.xml
+.idea/**/dbnavigator.xml
+
+# modules
+.idea_modules/
+
+# Editor-based Rest Client
+.idea/httpRequests
+
+# project-specific exclusions
 *.log

.idea/developer-tools.xml

@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="DeveloperToolsToolWindowSettingsV1" lastSelectedContentNodeId="base64-encoder-decoder" pluginVersion="9.0.0">
+    <developerToolsConfigurations />
+  </component>
+</project>

.idea/git_toolbox_prj.xml

@@ -0,0 +1,15 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="GitToolBoxProjectSettings">
+    <option name="commitMessageIssueKeyValidationOverride">
+      <BoolValueOverride>
+        <option name="enabled" value="true" />
+      </BoolValueOverride>
+    </option>
+    <option name="commitMessageValidationEnabledOverride">
+      <BoolValueOverride>
+        <option name="enabled" value="true" />
+      </BoolValueOverride>
+    </option>
+  </component>
+</project>

.idea/indexLayout.xml

@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="UserContentModel">
+    <attachedFolders />
+    <explicitIncludes />
+    <explicitExcludes />
+  </component>
+</project>

.idea/projectSettingsUpdater.xml

@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="RiderProjectSettingsUpdater">
+    <option name="singleClickDiffPreview" value="1" />
+    <option name="unhandledExceptionsIgnoreList" value="1" />
+    <option name="vcsConfiguration" value="3" />
+  </component>
+</project>

.idea/vcs.xml

@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="VcsDirectoryMappings">
+    <mapping directory="" vcs="Git" />
+  </component>
+</project>

Folder.DotSettings

@@ -0,0 +1,6 @@
+<wpf:ResourceDictionary xml:space="preserve" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" xmlns:s="clr-namespace:System;assembly=mscorlib" xmlns:ss="urn:shemas-jetbrains-com:settings-storage-xaml" xmlns:wpf="http://schemas.microsoft.com/winfx/2006/xaml/presentation">
+	<s:Boolean x:Key="/Default/UserDictionary/Words/=cfddns/@EntryIndexedValue">True</s:Boolean>
+	<s:Boolean x:Key="/Default/UserDictionary/Words/=ddns/@EntryIndexedValue">True</s:Boolean>
+	<s:Boolean x:Key="/Default/UserDictionary/Words/=logwatch/@EntryIndexedValue">True</s:Boolean>
+	<s:Boolean x:Key="/Default/UserDictionary/Words/=mydomain/@EntryIndexedValue">True</s:Boolean>
+	<s:Boolean x:Key="/Default/UserDictionary/Words/=myserver/@EntryIndexedValue">True</s:Boolean></wpf:ResourceDictionary>

README.md

@@ -1,41 +1,61 @@
-# CloudflareDDNS <!-- omit in toc -->
+# CloudflareDDNS
 
-Update your *existing* Cloudflare DNS records with your current (dynamic) IP address via systemd timers and a (POSIX) shell script.
+Update your *existing* Cloudflare DNS records with your current (dynamic) IP address via systemd timers and a (POSIX)
+shell script.
 
-## Contents <!-- omit in toc -->
+## Contents
 
-<!-- toc -->
+<!-- TOC -->
 
-- [Prerequisites](#prerequisites)
+* [CloudflareDDNS](#cloudflareddns)
-- [cfddns script](#cfddns-script)
+    * [Contents](#contents)
-  * [Installation](#installation)
+    * [Prerequisites](#prerequisites)
-  * [Usage](#usage)
+    * [cfddns script](#cfddns-script)
-    + [Parameters](#parameters)
+        * [Installation](#installation)
-- [Cloudflare credentials file](#cloudflare-credentials-file)
+        * [Usage](#usage)
-  * [File structure](#file-structure)
+            * [Parameters](#parameters)
-  * [Bearer token](#bearer-token)
+    * [Cloudflare credentials file](#cloudflare-credentials-file)
-  * [Zone ID](#zone-id)
+        * [File structure](#file-structure)
-- [cfddns systemd service unit](#cfddns-systemd-service-unit)
+        * [Bearer token](#bearer-token)
-  * [IP4 or IP6](#ip4-or-ip6)
+        * [Zone ID](#zone-id)
-    + [Examples](#examples)
+    * [cfddns systemd service unit](#cfddns-systemd-service-unit)
-- [cfddns systemd timer unit](#cfddns-systemd-timer-unit)
+        * [IP4 or IP6](#ip4-or-ip6)
-  * [Activation](#activation)
+            * [Examples](#examples)
-- [Logging](#logging)
+    * [cfddns systemd timer unit](#cfddns-systemd-timer-unit)
-  * [Using Logwatch to monitor this script](#using-logwatch-to-monitor-this-script)
+        * [Activation](#activation)
-  * [Using Logrotate to control log file size](#using-logrotate-to-control-log-file-size)
+    * [Logging](#logging)
-- [Final thoughts](#final-thoughts)
+        * [JSON format](#json-format)
+        * [SYSLOG format](#syslog-format)
+        * [Systemd journal (journald)](#systemd-journal-journald)
+        * [Using Logwatch to monitor this script](#using-logwatch-to-monitor-this-script)
+        * [Using Logrotate to control log file size](#using-logrotate-to-control-log-file-size)
+    * [Final thoughts](#final-thoughts)
 
-<!-- tocstop -->
+<!-- TOC -->
 
 ## Prerequisites
 
-This script requires that `curl` and `jq` are installed. `curl` is used to interact with the Cloudflare API and `jq` is used to efficiently and reliably construct/deconstruct the JSON strings and arrays which is how the Cloudflare API communicates. In most cases you can install these programs using your package manager running as root or via sudo. On Debian/Ubuntu, for example, you would run:
+This script requires that `curl` and `jq` are installed. `curl` is used to interact with the Cloudflare API and `jq` is
+used to efficiently and reliably construct/deconstruct the JSON strings and arrays returned by the Cloudflare API. If
+you want to log to the system journal (journald), then `logger` must also be installed. In most cases you can install
+these programs using your package manager running as root or via sudo:
 
-```bash
+```sh
-apt install -y curl jq
+# Debian/Ubuntu
+sudo apt update && sudo apt install -y curl jq bsdutils
+
+# Arch
+sudo pacman -Sy curl jq logger
+
+# Redhat/CentOS/Fedora
+sudo dnf install curl jq util-linux
+
+# Redhat/CentOS/Fedora (older versions)
+sudo yum install curl jq util-linux
 ```
 
-While the script does *not* require root privileges, you will need sudo/root access to install the *systemd* service and timer.
+> While the script does *not* require root privileges, you will need sudo/root access to install the *systemd* service
+> and timer.
 
 ## cfddns script
 
@@ -43,7 +63,7 @@ While the script does *not* require root privileges, you will need sudo/root acc
 
 I recommend putting this script in your */usr/local/bin* directory or somewhere else in your path so it's easy to run.
 
-1. Copy the script file to your desired path and rename if you want.
+1. Copy the script file to your desired path and rename it if you want.
 
    ```Bash
    sudo cp cfddns.sh /usr/local/bin/   # just copy it
@@ -56,11 +76,15 @@ I recommend putting this script in your */usr/local/bin* directory or somewhere
    sudo chmod +x /usr/local/bin/cfddns.sh
    ```
 
-> Note: You can rename *cfddns.sh* to anything you want, the script will auto-update itself. However, you **must** manually update the systemd service file (*cfddns.service*) `ExecStart` line as [explained below](#cfddns-script).
+> Note: You can rename *cfddns.sh* to anything you want, the script will automatically use its current name. However,
+> you **must** manually update the systemd service file (*cfddns.service*) `ExecStart` line
+> as [explained below](#cfddns-script).
 
 ### Usage
 
-If you run the script with no parameters, it will display the help screen.  The script accepts several parameters with only one (1) being required.  The parameters are summarized below.  You can access the help screen and example usage screens by running:
+If you run the script with no parameters, it will display the help screen. The script accepts several parameters with
+only one (1) being required. The parameters are summarized below. You can access the help screen and example usage
+screens by running:
 
 ```Bash
 cfddns.sh --help   # display help screen
@@ -69,35 +93,46 @@ cfddns.sh --examples   # show script usage examples
 
 #### Parameters
 
-|Parameter|Description|Default|Required?|
+| Parameter                                      | Description                                                                                                                                                                                                                                                                                                                                                                                            | Default                           | Required? |
-|---|---|---|:---:|
+|------------------------------------------------|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|-----------------------------------|:---------:|
-|-r<br>--record<br>--records|The fully qualified hostname(s) that should be updated with new IP addresses. You can supply a comma-delimited list (no spaces) or just one. Note that the script can only update *either* A *or* AAAA records during a single run so you may need to batch your hostnames, depending on your set-up.<br>N.B. This script will only update *existing* host records, it will **not** create new ones!|none|YES|
+| -r<br>--record<br>--records                    | The fully qualified hostname(s) that should be updated with new IP addresses. You can supply a comma-delimited list (no spaces) or just one. Note that the script can only update *either* A *or* AAAA records during a single run so you may need to batch your hostnames, depending on your set-up.<br>**N.B. This script will only update *existing* host records, it will _not_ create new ones!** | none                              |    YES    |
-|-c<br>--cred<br>--creds<br>--credentials<br>-f|Full path to your CloudFlare credentials file. This file contains your access token and zone id. See the [relevant section](#cloudflare-credentials-file) of this readme for more information.|scriptPath/cloudflare.credentials|NO|
+| -c<br>--cred<br>--creds<br>--credentials<br>-f | Full path to your CloudFlare credentials file. This file contains your access token and zone id. See the [relevant section](#cloudflare-credentials-file) of this readme for more information.                                                                                                                                                                                                         | scriptPath/cloudflare.credentials |    NO     |
-|-i<br>--ip<br>--ip-address<br>-a<br>--address|The IP address that should be used to update Host A/AAAA records. If you omit this value, the script will attempt to auto-detect your public IP4/IP6 address and use that as appropriate. Use this option to manually force a specific IP to be used or when auto-detection fails. Note that the script does *not* check your IP addresses for correctness or proper form!|IP4 auto-detect|NO|
+| -i<br>--ip<br>--ip-address<br>-a<br>--address  | The IP address that should be used to update Host A/AAAA records. If you omit this value, the script will attempt to auto-detect your public IP4/IP6 address and use that as appropriate. Use this option to manually force a specific IP to be used or when auto-detection fails. Note that the script does *not* check your IP addresses for correctness or proper form!                             | IP4 auto-detect                   |    NO     |
-|-4<br>--ip4<br>--ipv4|Update Host A records only (IP4). The script can only update *either* A *or* AAAA records in a single run. If you specify this and also use the IP6 mode switch, the most recent one will take effect.|Enabled, update A records|NO|
+| -4<br>--ip4<br>--ipv4                          | Update Host A records only (IP4). The script can only update *either* A *or* AAAA records in a single run. If you specify this and also use the IP6 mode switch, the most recent one will take effect.                                                                                                                                                                                                 | Enabled, update A records         |    NO     |
-|-6<br>--ip6<br>--ipv6|Update Host AAAA records only (IP6). The script can only update *either* A *or* AAAA records in a single run. If you specify this and also use the IP4 mode switch, the most recent one will take effect.|Disabled, update A records|NO|
+| -6<br>--ip6<br>--ipv6                          | Update Host AAAA records only (IP6). The script can only update *either* A *or* AAAA records in a single run. If you specify this and also use the IP4 mode switch, the most recent one will take effect.                                                                                                                                                                                              | Disabled, update A records        |    NO     |
-|||||
+|                                                |                                                                                                                                                                                                                                                                                                                                                                                                        |                                   |           |
-|-l<br>--log|Full path where the script should save its log. Recommend */var/log/scriptName.log*|scriptPath/scriptName.log|NO|
+| --log-file                                     | Generate a log file and save it in the specified location. Only specify this option if you want to save the log file in a non-default location. If you want to save the log in the default location, omit this option. Recommend */var/log/scriptName.log*                                                                                                                                             | scriptPath/scriptName.log         |    NO     |
-|--nc<br>--no-color<br>--no-colour|Do not use ANSI colour-coding when writing to the log. This is useful if you review the logs using a reader that does not support ANSI colour-coding and instead displays control symbols which makes your log difficult to read.|Disabled, do colourful logs|NO|
+| --log-journal                                  | Log to the system journal (journald) instead of a log file. Log entries are automatically tagged 'CFDDNS' for easier filtering. Format tags do NOT apply when using this option. Use `json` or `pretty-json` with `journalctl` to see all logged properties.                                                                                                                                           | Disabled, write to log file       |    NO     |
-|--log-console|Output the log to the console instead of a log file. You may use `--nc` with this option also.|Disabled, write to log file|NO|
+| --log-console                                  | Write log entries to the console (stdout) instead of a log file. Using `--fmt-syslog` with this option is strongly recommended since JSON is difficult to read on the console.                                                                                                                                                                                                                         | Disabled, write to log file       |    NO     |
-|--no-log|Do not write a log file or output to the console. You will not have **any** feedback from the script if you run in this mode so you will not know if updates were successful or not. I’m not really sure why you’d want this option, but it’s available.|Disabled, write to log file|NO|
+| --no-log                                       | Do *not* write a log file, write to the journal, or output to the console. You will not have **any** feedback from the script if you run in this mode so you will not know if updates were successful or not. I’m not really sure why you’d want this option, but it’s available.                                                                                                                      | Disabled, write to log file       |    NO     |
-|-h<br>--help<br>-?|Display built-in help screen explaining these same parameters.|||
+|                                                |                                                                                                                                                                                                                                                                                                                                                                                                        |                                   |           |
-|--examples|Display some usage examples. Sometimes it's just easier to understand by seeing rather than reading.|||
+| --fmt-json                                     | Write the log file or console output in a structured *Compact Log Event Format (CLEF)* JSON format. You will probably need a log viewer to meaningfully parse the logs.                                                                                                                                                                                                                                | Enabled                           |    NO     |
+| --fmt-syslog                                   | Write the log file or console output in a modified plain-text *syslog* style. This option is recommended when using `--log-console` or if you need easily readable log files. While all log entries are *consistent* using this format, they are not *structured*.                                                                                                                                     | Disabled, just JSON format        |    NO     |
+|                                                |                                                                                                                                                                                                                                                                                                                                                                                                        |                                   |           |
+| -h<br>--help<br>-?                             | Display built-in help screen explaining these same parameters.                                                                                                                                                                                                                                                                                                                                         |                                   |           |
+| --examples                                     | Display some usage examples. Sometimes it's easier to understand by seeing rather than reading.                                                                                                                                                                                                                                                                                                        |                                   |           |
 
 ## Cloudflare credentials file
 
-This repo includes a sample credentials file (*cloudflare.credentials* at the root of the repo) with pretty self-explanatory variable names. The script reads this file to get the credentials it needs to connect to your Cloudflare account and update DNS entries. It should be noted that the script is designed to use a *bearer token* and **not** your username/password or your Global API token! Let’s break this down in case things are a little fuzzy still...
+This repo includes a sample credentials file (*cloudflare.credentials* at the root of the repo) with pretty
+self-explanatory variable names. The script reads this file to get the credentials it needs to connect to your
+Cloudflare account and update DNS entries. It should be noted that the script is designed to use a *bearer token* and
+**not** your username/password or your Global API token! Let’s break this down in case things are a little fuzzy
+still...
 
 ### File structure
 
-The file is a basic shell script variables file. Make sure you **do not** put spaces between the variable name, equal sign and the value. Also, **do not** add any executable code since it will be run! The file should contain values for the following two variables:
+The file is a basic shell script variables file. Make sure you **do not** put spaces between the variable name, equal
+sign and the value. Also, **do not** add any executable code since it will be run! The file should contain values for
+the following two variables:
 
-| Variable | Value                                                        |
+| Variable | Value                                                                                        |
-| -------- | ------------------------------------------------------------ |
+|----------|----------------------------------------------------------------------------------------------|
 | cfKey    | The bearer token granting access to *edit* the DNS records of the zone (domain) in question. |
-| cfZoneId | The Cloudflare Zone ID of the zone (domain) you wish to update. |
+| cfZoneId | The Cloudflare Zone ID of the zone (domain) you wish to update.                              |
 
-You can add comments if you’d like since the script will ignore them. In the end, your file should look something like this, but obviously with your data instead of this nonsense sample information:
+You can add comments if you’d like since the script will ignore them. In the end, your file should look something like
+this, but obviously with your data instead of this nonsense sample information:
 
 ```ini
 #
@@ -109,9 +144,12 @@ cfZoneId=83d564234134513245311b23412331dd
 
 ```
 
-You can save the file as anything you like and anywhere you’d like as long as you inform the script of its location using the `--credentials` parameter. By default, the script will look for a file named *cloudflare.credentials* in the same path as the script.
+You can save the file as anything you like and anywhere you’d like as long as you inform the script of its location
+using the `--credentials` parameter. By default, the script will look for a file named *cloudflare.credentials* at the
+same path as the script.
 
-Please remember that this file basically contains a password! As a result, it should be protected and access limited to the root account:
+Please remember that this file basically contains a password! As a result, it should be protected and access limited to
+the root account:
 
 ```bash
 chown root:root /path/to/cloudflare.credentials
@@ -120,20 +158,30 @@ chmod 600 /path/to/cloudflare.credentials
 
 ### Bearer token
 
-I chose to use an API bearer token instead of a username/password or Global API token for security reasons. Your username/password and Global API token provide unfettered access to your account so if anyone gets hold of them, they can do anything to your account. An API bearer token, by contrast, can only do what you authorize it to do and you can revoke it at any time. Therefore, I suggest making a bearer token that is based on the “Edit zone DNS” template and restricted to the specific domain/zone you wish to update. Cloudflare provides an [excellent article](https://support.cloudflare.com/hc/en-us/articles/200167836-Managing-API-Tokens-and-Keys) on how to generate this token.
+I chose to use an API bearer token instead of a username/password or Global API token for security reasons. Your
+username/password and Global API token provide unfettered access to your account, so if anyone gets hold of them, they
+can do anything to your account. An API bearer token, by contrast, only permits actions you explicitly authorize when
+you create it, and you can revoke it at any time. Therefore, I suggest making a bearer token that is based on the
+“Edit zone DNS” template and restricted to the specific domain/zone you wish to update. Cloudflare provides
+an [excellent article](https://support.cloudflare.com/hc/en-us/articles/200167836-Managing-API-Tokens-and-Keys) on how
+to generate this token.
 
 > N.B. This is a breaking change from previous versions of this script!
 
 ### Zone ID
 
-This is required by the Cloudflare API so it knows which zone you are editing and can check the permissions of the bearer token. This script only caters to one zone so likely only one domain per configuration file. If you need to update multiple zones, you can have multiple configuration files and call them as required on separate invocations of the script.
+This is required by the Cloudflare API so it knows which zone you are editing and can check the permissions of the
-
+bearer token. This script only caters to one zone, so likely only one domain per configuration file. If you need to
-To get your Zone ID, log into your Cloudflare account and open the domain in question. On the overview page, scroll down a bit and look to the right. You will see your Zone ID listed there. Copy that string into your configuration file.
+update multiple zones, you can have multiple configuration files and call them as required on separate invocations of
+the script.
 
+To get your Zone ID, log into your Cloudflare account and open the domain in question. On the overview page, scroll down
+a bit and look to the right. You will see your Zone ID listed there. Copy that string into your configuration file.
 
 ## cfddns systemd service unit
 
-This file **must** be copied to your */etc/systemd/system* directory (or equivalent directory if you're not running Debian/Ubuntu). If you change the name of the cfddns&#46;sh file, you must update the filename in the `ExecStart` line as shown below:
+For the easiest implementation, this file should be copied to your */etc/systemd/system* directory. If you change the
+name of the *cfddns.sh* file, you must update the filename in the `ExecStart` line as shown below:
 
 ````Ini
 ...
@@ -145,24 +193,32 @@ ExecStart=/full/path/to/your/renamed.file -parameter1 -parameter2 -parameter...
 
 ### IP4 or IP6
 
-The cfddns.service file includes two *ExecStart* lines, one without a specified IP-protocol parameter (default IP4) and the other with the -6 (IP6) parameter. The service will run the cfddns&#46;sh script in default (IP4) mode with specified parameters first and then will run the script again in IP6 mode with specified parameters.
+The cfddns.service file includes two *ExecStart* lines, one without a specified IP-protocol parameter (default IP4) and
+the other with the -6 (IP6) parameter. The service will run the cfddns&#46;sh script in default (IP4) mode with
+specified parameters first and then will run the script again in IP6 mode with specified parameters.
 
 *Note: The parameters *can be different* in each case.*
 
+> **N.B.** This is a `oneshot` type systemd unit-file, so we can have multiple `ExecStart` lines.
+
 #### Examples
 
 1. **Only update A records**
-    Update *mail<span>.example.com* A record with the current auto-detected public IP4 address of this machine and log results to */var/log/cfddns.log*.
+   Update the `A` record for *mail.example.com* with the current auto-detected public IP4 address of this machine and
-  
+   log in JSON format (default) to */var/log/cfddns.log*. Note our Cloudflare credentials file is located in the *root
+   user's home* directory.
+
     ```Ini
    [Service]
    Type=oneshot
-   ExecStart=/usr/local/bin/cfddns.sh -c /root/cloudflare.credentials -r mail.example.com -l /var/log/cfddns.log
+   ExecStart=/usr/local/bin/cfddns.sh -c /root/cloudflare.credentials -r mail.example.com --log-file /var/log/cfddns.log
    ...
    ```
 
 2. **Only update AAAA records**
-    Update *git<span>.example.com* and *mail<span>.example.com* AAAA records with the current auto-detected public IP6 address of this machine. Log will be stored in the same directory as the script file (/usr/local/bin).
+   Update `AAAA` records for *git.example.com* and *mail.example.com* with the current auto-detected public IP6 address
+   of this machine. The log will be stored in the same directory as the script file (default) and will be
+   JSON-formatted (default). In this case, the Cloudflare credentials file is located in */home/johndoe*.
 
     ```Ini
     [Service]
@@ -172,21 +228,29 @@ The cfddns.service file includes two *ExecStart* lines, one without a specified
     ```
 
 3. **Update A records then AAAA records**
-   Update *mail<span>.example.com* A record with auto-detected public IP4 address of this machine and write to log file stored at */var/log/DDNS_IP4.log*.  Then, update both *mail<span>.example.com* and *git<span>.example.com* AAAA records with the specified IP6 address and write to log file at */var/log/DDNS_IP6.log*.
+   Update the `A` record for *mail.example.com* with the auto-detected public IP4 address of this machine. Then, update
-   
+   `AAAA` records for both *mail.example.com* and *git.example.com* with the *specified IP6 address*. In both cases, we
+   are logging to the system journal (journald). Also notice that the Cloudflare credentials file is located in
+   different
+   places for each script call.
+
    ```Ini
    [Service]
    Type=oneshot
    # update IP4 addresses
-   ExecStart=/usr/local/bin/cfddns.sh -c /dir1/account.cf -r mail.example.com -l /var/log/DDNS_IP4.log
+   ExecStart=/usr/local/bin/cfddns.sh -c /dir1/account.cf -r mail.example.com --log-journal
    # update IP6 addresses
-   ExecStart=/usr/local/bin/cfddns.sh -6 -c /dir2/cloudflare.details -r mail.example.com,git.example.com --ip fd3f:e6db:9817:df84::a001 -l /var/log/DDNS_IP6.log
+   ExecStart=/usr/local/bin/cfddns.sh -6 -c /dir2/cloudflare.details -r mail.example.com,git.example.com --ip fd3f:e6db:9817:df84::a001 --log-journal
    ...
    ```
 
 ## cfddns systemd timer unit
 
-Just like the service file unit, this file **must** be copied to your */etc/systemd/system* directory (or equivalent directory if you're not running Debian/Ubuntu). This timer file unit tells your system how often to call the *cfddns.service* file which runs the *cfddns&#46;sh* script.  By default, the timer is set for 5 minutes after the system boots up (to allow for other processes to initialize even on slower systems like a RasPi) and is then run every 15 minutes thereafter.  Remember when setting your timer that Cloudflare limits API calls to 1200 every 5 minutes.
+Again, for the easiest configuration, this file should be copied to your */etc/systemd/system* directory. This timer
+file unit tells your system how often to call the *cfddns.service* file which runs the *cfddns.sh* script. By default,
+the timer is set for 5 minutes after the system boots up (to allow for other processes to initialize even on slower
+systems like a RasPi) and is then run every 15 minutes thereafter. Remember when setting your timer that Cloudflare
+limits API calls to 1200 every 5 minutes.
 
 You can change the timer by modifying the relevant section of the *cfddns.timer* file:
 
@@ -196,12 +260,15 @@ OnBootSec=5min
 OnUnitActiveSec=15min
 ```
 
-*OnBootSec* is how long to wait after the system boots up before executing the *cfddns.service*.  *OnUnitActiveSec* will then wait the specified time from that first (after boot) call or after the timer is explicitly started before calling *cfddns.service* again.  I recommend setting OnUnitActiveSec to a low value (like 2 minutes) for testing then setting it to a more reasonable time (like 15
+*OnBootSec* is how long to wait after the system boots up before executing the *cfddns.service*.  *OnUnitActiveSec* will
-minutes) after everything is working.
+then wait the specified time from that first (after boot) call or after the timer is explicitly started before calling
+*cfddns.service* again. I recommend setting OnUnitActiveSec to a low value (like 2 minutes) for testing, then setting it
+to a more reasonable time (like 15 minutes) after everything is working.
 
-After you’ve copied both the systemd unit and this timer unit, don’t forget to reload the systemd daemon so they are recognized by the system! On most systems you can do this by running the following as root or via sudo:
+Remember to reload `systemd` after you’ve copied both the systemd unit and this timer unit. Run the following as root or
+via sudo:
 
-```bash
+```sh
 systemctl daemon-reload
 ```
 
@@ -227,45 +294,78 @@ systemctl status cfddns.timer
 
 It is NOT necessary to enable/start the *cfddns.service*, only the timer needs to be active.
 
-Also remember that if you make changes to settings like `OnUnitActiveSec` while testing or after testing is complete you *must* reload the systemd daemon! It will restart the appropriate units for you and your new settings will take effect immediately.
+Also remember that if you make changes to settings like `OnUnitActiveSec` while testing, or after testing is complete,
+you *must* reload the systemd daemon! It will restart the appropriate units for you, and your new settings will take
+effect immediately.
 
 ## Logging
 
-The script logs every major action it takes and provides details on any errors it encounters in the log file (see the [parameters section](#parameters) for details about setting log location and name).  If errors are encountered, they are colour coded red and an explanation of the error code is provided.
+The script logs every major action it takes and provides details on any errors it encounters in the log file. Refer
+to the [parameters section](#parameters) for details about setting log location and name. Starting in version 3.0, the
+entire logging system outputs structured **JSON** by default.
 
-While the log file is as terse as I felt reasonable, you may still want to configure any log-watch programs to further filter things for you so you don't have to review this log as part of your daily routine.  To make that easier, the following conventions are observed in the log file and can be used to program your log-watch system:
+> PLEASE remember to review your current log review/parsing system if upgrading from previous versions since this is a
+> **major** change to how logging works.
 
-- Specific update process errors: **[TIMESTAMP] ERR: message**
+**IMPORTANT:** This script uses the same log file for its output (unless you specify a different log file each time it
-  - These can be counted/filtered separately if you only care about update errors and not any other errors.
+is run) therefore, you should avoid switiching formats within existing log files. For example, if you are using the
-- Error messages: **[TIMESTAMP] ERROR: message (code: number)**
+default log file, and run the script once with `--fmt-syslog` then switch to the default `--fmt-json`, parsing your log
-  - Only one summary error message will be displayed for any/all update errors. This message contains a tally of failed updates. If you want to count individual update errors, filter for the above process error message format.
+will become very difficult. If you are switching log formats, it is best to start with a fresh log file.
-  - While process error messages only relate to updates, these general error messages are logged for a variety of error conditions so it’s a good idea to include them in any filters.
+
-- Cloudflare API error messages:  **[TIMESTAMP] CF-ERR: message (code: cf-error-code)**
+### JSON format
-  - These are only logged when update process errors occur so that you can see exactly what the Cloudflare API is complaining about.
+
-- Specific update process warnings: **[TIMESTAMP] WARN: message**
+This is the default logging format since it allows for easy parsing and filtering of log entries while still retaining a
-  - These can be counted/filtered separately from general warning messages. Presently, there are *no* general warning messages.
+structured format. I chose to implement a modified [Compact Log Event Format (CLEF)](https://clef-json.org) with the
-- Warning messages: **[TIMESTAMP] WARNING: message**
+following format for every message (expanded for readability, the log file is not 'pretty-printed'):
-  - Summary of each type of warning. Contains a tally of the specific warning.
+
-  - Currently, warnings are only issued for hostnames that are not found (i.e. update process warnings).
+```json
-- Success messages: **[TIMESTAMP] SUCCESS: message**
+{
-  - Each successful update generates a success message. There is no process or tally message.
+  "@t": "ISO-8601 timestamp",
-- Already up-to-date: **[TIMESTAMP] IP address for {fqdn} is already up-to-date**
+  "@m": "message describing the event",
-  - Already up-to-date host entries generate a success message but you may still want to filter for them separately using this criteria.
+  "@l": "log level",
-- A session log always starts with **[TIMESTAMP] -- Cloudflare DDNS update-script: starting --**
+  "hostname": "hostname of the machine executing the script",
-- A successful session log always ends with **[TIMESTAMP] -- Cloudflare DDNS update-script: completed successfully --**
+  "programName": "CFDDNS",
-- A session ending with errors always ends with **[TIMESTAMP] -- Cloudflare DDNS update-script: completed with error(s) --**
+  "pid": "PID of the process executing the script",
+  "status": "status of the operation being logged",
+  "operation": "short-name of the operation being logged",
+  "code": "numeric 'exit code' of the operation being logged"
+}
+```
+
+### SYSLOG format
+
+The SYSLOG format (`--fmt-syslog`) is a modified version of the typical plain-text *nix syslog format. This format is
+useful when outputting the log to the console or when you need a very human-friendly format for the log files since you
+will be manually parsing them. While the plain-text format is not *structured*, it is *consistent*:
+
+```text
+ISO-8601 timestamp hostname CFDDNS[pid]: LOG_LEVEL STATUS MESSAGE (OPERATION:CODE)
+```
+
+### Systemd journal (journald)
+
+When using the `--log-journal` option, all logging will be sent to `journald` using its format. All log messages are
+tagged `CFDDNS` to make filtering easier. Additional information logged with each entry can be exposed using the `json`
+or `json-pretty` output options for `journalctl`.
 
 ### Using Logwatch to monitor this script
 
-If you are using the Logwatch package to monitor your system, see the README in the */etc/logwatch* folder for details about the pre-configured service files already done for you :-)
+If you are using the Logwatch package to monitor your system, see the README in the */etc/logwatch* folder for details
+about the pre-configured service files already done for you :-)
 
 ### Using Logrotate to control log file size
 
-Logrotate is pre-installed on standard Debian/Ubuntu distributions and is a great way to automatically rotate your log files and control how many old logs you keep on your system so they don't accumulate and eat up your disk space. I've included a sample configuration file you can copy to your */etc/logrotate.d/* folder.  This file is set up to rotate your logs once a week, keep 3 weeks worth of history (compressed) and delete all logs older than that.  The configuration file is located in this git archive at
+Logrotate is pre-installed on most linux distributions and is a great way to automatically rotate your log
-*/etc/logrotate.d/cfddns* and is fully commented to help you customize it to suit your needs.
+files and control how many old logs you keep on your system so they don't accumulate and eat up your disk space. I've
+included a sample configuration file you can copy to your */etc/logrotate.d/* folder. This file is set up to rotate your
+logs once a week, keep 3 weeks worth of history (compressed) and delete all logs older than that. The configuration file
+is located in this git archive at */etc/logrotate.d/cfddns* and is fully commented to help you customize it to suit your
+needs.
 
 ## Final thoughts
 
-Hopefully this helps you with an easy and reliable way to  update your Cloudflare DNS entries with a dynamic IP address. Please feel free to comment and provide feedback and suggestions to make this script better!
+Hopefully, this helps you with an easy and reliable way to update your Cloudflare DNS entries with a dynamic IP address.
+Please feel free to comment and provide feedback and suggestions to make this script better!
 
-Please check out my blog at [https://mytechiethoughts.com](https://mytechiethoughts.com) where I tackle problems like this all the time and find free/cheap solutions to tech problems.
+Please check out my blog at [https://mytechiethoughts.com](https://mytechiethoughts.com) where I tackle problems like
+this all the time and find free/inexpensive solutions to tech problems.

cfddns.service

@@ -4,8 +4,8 @@ After=network.target
 
 [Service]
 Type=oneshot
-ExecStart=/usr/local/bin/cfddns.sh -c /path/to/account.details -r server.domain.tld -l /var/log/cfddns.log
+ExecStart=/usr/local/bin/cfddns.sh -c /path/to/account.details -r server.domain.tld --log-journal
-ExecStart=/usr/local/bin/cfddns.sh -6 -c /path/to/account.details -r server.domain.tld -l /var/log/cfddns.log
+ExecStart=/usr/local/bin/cfddns.sh -6 -c /path/to/account.details -r server.domain.tld --log-journal
 
 [Install]
 WantedBy=multi-user.target

etc/logwatch/README.md

@@ -1,37 +1,48 @@
-# Using Logwatch to monitor Cloudflare DDNS updater script <!-- omit in toc -->
+# Using Logwatch to monitor the Cloudflare DDNS updater script
 
-The Cloudflare DDNS update script's log file has been set up so that utilities like Logwatch can easily parse it.  In order to make that happen, a LogFile Group file, Service and Script have to be created for Logwatch to generate reports.  The correct (general) directory structure has been created in this git archive already.  Below are the details of each file.
+The Cloudflare DDNS update script's log file has been set up so that utilities like Logwatch can easily parse it. To
+make that happen, a LogFile Group file, Service and Script have to be created for Logwatch to generate reports.
+The correct (general) directory structure has been created in this git archive already. Below are the details of each
+file.
 
-You can implement this setup easily by copying it into your */etc/logwatch* directory and then modifying the files as necessary:
+You can implement this setup easily by copying it into your */etc/logwatch* directory and then modifying the files as
+necessary:
 
 ```bash
 cd /etc/logwatch
 cp -R /path/to/CloudflareDDNS_repo/etc/logwatch/* ./
 ```
 
-If you need help getting logwatch installed and set-up, please [check out my blog post](#https://mytechiethoughts.com/linux/easily-monitor-your-logs-using-logwatch/).
+If you need help getting logwatch installed and set-up,
+please [check out my blog post](#https://mytechiethoughts.com/linux/easily-monitor-your-logs-using-logwatch/).
 
-## Contents <!-- omit in toc -->
+> **IMPORTANT:** Starting with version 3.0 of the `cfddns` script, you *MUST* use the `--fmt-syslog` parameter when
+> running the `cfddns` script. Otherwise, your log file will be in JSON format, and the supplied templates will not
+> work.
 
-<!-- toc -->
+## Contents
 
-- [LogFile Group file](#logfile-group-file)
+<!-- TOC -->
-  * [Log file location](#log-file-location)
-  * [Archive location and name format](#archive-location-and-name-format)
-  * [External script for timestamp processing](#external-script-for-timestamp-processing)
-- [Service definition file](#service-definition-file)
-  * [LogFile Group file definition](#logfile-group-file-definition)
-  * [Report title](#report-title)
-  * [Detail level](#detail-level)
-- [Service script](#service-script)
-  * [Detail levels](#detail-levels)
-- [Timestamp processing script](#timestamp-processing-script)
-  * [The time format specification](#the-time-format-specification)
-  * [The search REGEX](#the-search-regex)
-- [Testing](#testing)
-- [Final thoughts](#final-thoughts)
 
-<!-- tocstop -->
+* [Using Logwatch to monitor the Cloudflare DDNS updater script](#using-logwatch-to-monitor-the-cloudflare-ddns-updater-script)
+    * [Contents](#contents)
+    * [LogFile Group file](#logfile-group-file)
+        * [Log file location](#log-file-location)
+        * [Archive location and name format](#archive-location-and-name-format)
+        * [External script for timestamp processing](#external-script-for-timestamp-processing)
+    * [Service definition file](#service-definition-file)
+        * [LogFile Group file definition](#logfile-group-file-definition)
+        * [Report title](#report-title)
+        * [Detail level](#detail-level)
+    * [Service script](#service-script)
+        * [Detail levels](#detail-levels)
+    * [Timestamp processing script](#timestamp-processing-script)
+        * [The time format specification](#the-time-format-specification)
+        * [The search REGEX](#the-search-regex)
+    * [Testing](#testing)
+    * [Final thoughts](#final-thoughts)
+
+<!-- TOC -->
 
 ## LogFile Group file
 
@@ -39,14 +50,17 @@ If you need help getting logwatch installed and set-up, please [check out my blo
 
 ### Log file location
 
-Update this as needed to point to the location and name of the log file generated by the updater script.  Remember, by default, the log file is created in the same directory as the script itself.
+Update this as needed to point to the location and name of the log file generated by the updater script. Remember, by
+default, the log file is created in the same directory as the script itself.
 
 ```Ini
 LogFile = /path/to/your/cfddns.log
 ...
 ```
 
-Best practices suggest you use the `--log` flag to change this location to something like */var/log/cfddns.log*, for example.  In that case, the entry would look like:
+Best practices suggest you use the `--log-file` flag to change this location to something like */var/log/cfddns.log*,
+for
+example. In that case, the entry would look like:
 
 ```Ini
 LogFile = /var/log/cfddns.log
@@ -55,7 +69,10 @@ LogFile = /var/log/cfddns.log
 
 ### Archive location and name format
 
-If you want Logwatch to process old (archived) log files generated by something like *Logrotate*, then you have to specify the location and file name format of those files.  I've included the generalized compressed format of such rotated files as the default in the script.  Suppose you store your log files in the recommended location (*/var/log/*) and are using *Logrotate* with compression enabled, the archive line would look like:
+If you want Logwatch to process old (archived) log files generated by something like *Logrotate*, then you have to
+specify the location and file name format of those files. I've included the generalized compressed format of such
+rotated files as the default in the script. Suppose you store your log files in the recommended location (*/var/log/*)
+and are using *Logrotate* with compression enabled, the archive line would look like:
 
 ```Ini
 ...
@@ -63,23 +80,28 @@ Archive = /var/log/cfddns.log.?.gz
 ...
 ```
 
-This would tell Logwatch, when the archive option is set to true, that your *cfddns.log* files are archived as: *cfddns.log.1.gz*, *cfddns.log.2.gz*, etc. and are all located in */var/log/*.
+This would tell Logwatch, when the archive option is set to true, that your *cfddns.log* files are archived as:
+*cfddns.log.1.gz*, *cfddns.log.2.gz*, etc. and are all located in */var/log/*.
 
-> Note: This line is totally optional and only used if you set the archive option in Logwatch to true.  You can comment/delete this line if you wish.
+> Note: This line is totally optional and only used if you set the archive option in Logwatch to true. You can
+> comment/delete this line if you wish.
 
 ### External script for timestamp processing
 
-Since the log file uses a non-standard (according to Logwatch) method of date-stamping, a custom filter had to be created.  See the [relevant](#timestamp-processing-script-etclogwatchscriptssharedsqfullstampanywhere) section of this document for more information.
+Since the log file uses a non-standard (according to Logwatch) method of date-stamping, a custom filter had to be
+created. See the [relevant](#timestamp-processing-script) section of this
+document for more information.
 
-The script file is called with an asterisk (*\**) before the filename.
+The script file is called with an asterisk (*) before the filename.
 
 ```Ini
 ...
-*sqFullStampAnywhere
+*iso8601timestamp
 ...
 ```
 
-If you change the name of this file, you will have to change this line. Remember that whatever you type here as a name is converted to all-lowercase so your filename should be all lowercase also.
+If you change the name of this file, you will have to change this line. Remember that whatever you type here as a name
+is converted to all-lowercase so your filename should be all lowercase also.
 
 ## Service definition file
 
@@ -87,7 +109,8 @@ If you change the name of this file, you will have to change this line. Remember
 
 ### LogFile Group file definition
 
-The service file needs to know what group of log files it is responsible for processing.  This MUST match the name of your *LogFile Group file*:
+The service file needs to know what group of log files it is responsible for processing. This MUST match the name of
+your *LogFile Group file*:
 
 ```Ini
 LogFile = cfddns
@@ -98,15 +121,20 @@ If you change your LogFile Group filename, then update it here also without the
 
 ### Report title
 
-The Logwatch output file (html or text) is divided into sections.  You can define the title to be anything that has meaning for you.  I have arbitrarily chosen *"CloudFlare DDNS update"* but you can change it to anything you want by modifying the line:
+The Logwatch output file (HTML or text) is divided into sections. You can define the title to be anything that has
+meaning for you. I have arbitrarily chosen *"CloudFlare DDNS update"* but you can change it to anything you want by
+modifying the line:
 
 ```Ini
 ...
 Title = "CloudFlare DDNS update"
 ```
+
 ### Detail level
 
-If you want to set the *detail* level of this service differently from your other services (which will use the *--detail* switch value or the value in your *logwatch.conf*), then you can define that level here.  By default, it appears like this in the service configuration file:
+If you want to set the *detail* level of this service differently from your other services (which will use the
+*--detail* switch value or the value in your *logwatch.conf*), then you can define that level here. By default, it
+appears like this in the service configuration file:
 
 ```Ini
 ...
@@ -115,7 +143,8 @@ If you want to set the *detail* level of this service differently from your othe
 # Detail = 0
 ```
 
-Simply change it to the value you want enforced.  For example, here I'm setting it to output level 5 regardless of whatever settings everything else is using.
+Simply change it to the value you want enforced. For example, here I'm setting it to output level 5 regardless of
+whatever settings everything else is using.
 
 ```Ini
 # Override the detail level for this service
@@ -127,64 +156,86 @@ Detail = 5
 
 > This file is located within the repo at */etc/logwatch/scripts/services/cfddns*
 
-Logwatch calls any script with a name that **matches the service name**.  You'll notice that I just named everything *cfddns* to keep things simple.  You can change this to whatever you want.  If you changed the service name to *"cloudflare*.conf", for example, you would have to rename this script file to "*cloudflare*" with no extension.  Note: The script is a PERL file (note the
+Logwatch calls any script with a name that **matches the service name**. You'll notice that I just named everything
-shebang) but it can be written in any language.
+*cfddns* to keep things simple. You can change this to whatever you want. If you changed the service name to
+"*cloudflare*.conf", for example, you would have to rename this script file to "*cloudflare*" with no extension.
+Note: The script is a PERL file (note the shebang), but it can be written in any language.
 
-In essence, Logwatch just spits out the log file(s) defined in the LogFile Group file as standard input (STDIN) for the script and then takes whatever is output (STDOUT) from the script to assemble into its report.
+In essence, Logwatch just spits out the log file(s) defined in the LogFile Group file as standard input (STDIN) for the
+script and then takes whatever is output (STDOUT) from the script to assemble into its report.
 
 ### Detail levels
 
 The script supports four (4) detail levels as follows:
 
 - **Level 0: Summary output only**
-  - This will display a simple aggregate of status message categories over the reporting period:
+    - This will display a simple aggregate of status message categories over the reporting period:
-    - Entries successfully updated
+        - Entries successfully updated
-    - Entries already up-to-date
+        - Entries already up to date
-    - Hosts failed to update
+        - Hosts failed to update
-    - Undefined hosts (i.e. requested to update but record doesn’t exist)
+        - Undefined hosts (i.e. requested to update but record doesn’t exist)
-    - Total warning messages
+        - Total warning messages
-    - Total errors
+        - Total errors
-    
+
-  - **This is the recommended reporting level.**  It does not take up much space and is quick to read.  If you see successful updates and/or up-to-date numbers match what you expect and no errors logged, then you can assume things are working properly. If the numbers aren’t right or you see errors/warnings, then you can investigate the situation by consulting the actual logs or increasing the detail level in logwatch.
+    - **This is the recommended reporting level.**  It does not take up much space and is quick to read. If you see
-  
+      successful updates and/or up-to-date numbers match what you expect and no errors logged, then you can assume
-  - For example: Let’s suppose you are running an update every 15 minutes. Doing the math...
+      things are working properly. If the numbers aren’t right or you see errors/warnings, then you can investigate the
-    $$
+      situation by consulting the actual logs or increasing the detail level in logwatch.
-    (update_{success}) + (update_{up-to-date}) = (24h \times 60min)/15min = 96
+
-    $$
+    - For example, let’s suppose you are running an update every 15 minutes. Doing the math...
-    Therefore, you expect to see ‘Entries successfully updated’ and ‘Entries already up-to-date’ total *96*. If that’s the case and no errors or warnings are logged, things are ok. Pretty easy, right? That’s why this is the recommended filter setting.
+      $$
+      (update_{success}) + (update_{up-to-date}) = (24h \times 60min)/15min = 96
+      $$
+      Therefore, you expect to see ‘Entries successfully updated’ and ‘Entries already up to date’ total *96*. If that’s
+      the case and no errors or warnings are logged, things are ok. Pretty easy, right? That’s why this is the
+      recommended filter setting.
 - **Levels 1-4: Critical messages**
-  
+
-  - This uses the data which is summarized by Level 0 but outputs the *actual messages* in the log file.  For example, you will see the actual text of the errors logged instead of just a total number of errors.  This level of reporting is useful when *initially* monitoring the script's operation since you can see the text of any generated errors.
+    - This uses the data which is summarized by Level 0 but outputs the *actual messages* in the log file. For example,
-  - Levels 1, 2, 3 & 4 are identical so pick your favourite number.
+      you will see the actual text of the errors logged instead of just a total number of errors. This level of
+      reporting is useful when *initially* monitoring the script's operation since you can see the text of any generated
+      errors.
+    - Levels 1, 2, 3 & 4 are identical, so pick your favourite number.
 - **Level 5: Verbose output**
-  - Like the previous level, this outputs the actual messages found in the log file.  However, it also includes *CF-ERR* tags and tally count messages. This can help you pinpoint why the Cloudflare API is rejecting your requests by letting you see things like authentication errors or malformed addresses, etc.
+    - Like the previous level, this outputs the actual messages found in the log file. However, it also includes
-  - Honestly, this is not much more information than L1-L4 and is often a better choice while debugging any issues since you get the Cloudflare API messages.
+      *CF-ERR* tags and tally count messages. This can help you pinpoint why the Cloudflare API is rejecting your
-  - This level of output is much more verbose than the summary report. It also takes *much* more time and patience to review so it is only recommended when you’re dealing with issues.
+      requests by letting you see things like authentication errors or malformed addresses, etc.
-  - This is *not* recommended for day-to-day or routine reports.
+    - Honestly, this is not much more information than L1-L4 and is often a better choice while debugging any issues
+      since you get the Cloudflare API messages.
+    - This level of output is much more verbose than the summary report. It also takes *much* more time and patience to
+      review, so it is only recommended when you’re dealing with issues.
+    - This is *not* recommended for day-to-day or routine reports.
 - **Levels 6+: Complete log file dump**
-  - Any number greater than 5 passed as a detail level will trigger the script to dump the entire log file out to Logwatch line-by-line.  This is really only useful during debugging or dealing with serious issues where you do not have access to the actual log file. While this is an exact ‘echo’ of the log file, it likely will not be colour-coded which makes it harder to review.
+    - Any number greater than 5 passed as a detail level will trigger the script to dump the entire log file out to
-  - **Use this detail level only when you need to see the entire log file and cannot otherwise access the log file.**
+      Logwatch line-by-line. This is really only useful during debugging or dealing with serious issues where you do not
-  - Depending on how your logwatch treats this log dump, you may see gibberish control codes like *\e[0m;]*. If this is the case, run the script with the `--no-colour` or `--nc` option to remove ANSI colour formatting.
+      have access to the actual log file.
+    - **Use this detail level only when you need to see the entire log file and cannot otherwise access the log file.**
 
 ## Timestamp processing script
 
-> This file is located within the repo at */etc/logwatch/scripts/shared/sqfullstampanywhere*
+> This file is located within the repo at */etc/logwatch/scripts/shared/iso8601timestamp*
 
-This is basically a modified version of the '*applyeurodate*' script that comes with Logwatch.  It had to be modified to search within [square brackets] and to accept characters coming before the stamp (i.e. ANSI colour codes).  If you change the '**stamp**' variable in the updater script to update the timestamp to your liking (which to totally fine!) then you'll probably have to update this file.  There are two lines you need to modify to suit your new '**stamp**' variable.
+This is a modified version of the '*applyeurodate*' script that comes with Logwatch. If you change
+the '**stamp**' variable in the `cfddns` script to modify the timestamp to your liking (which is totally fine!) then
+you'll probably have to update this file. There are two lines you need to modify to suit your new '**stamp**' variable.
 
-> This entire section is only applicable if you are a very curious person or if you change the hard-coded ‘stamp’ function in the script. If you did not make any changes and you like a little mystery in your life, you can safely skip this entire section.
+> This entire section is only applicable if you are an inquisitive person or if you change the hard-coded ‘stamp’
+> function in the script. If you did not make any changes and you like a little mystery in your life, you can safely
+> skip this entire section.
 
 ### The time format specification
 
-'*$SearchDate*' is the variable used in the PERL script to do exactly what it says, search for the date stamp.  I have it set up to look for the format '*year-month-date hour:minute:second*'.  Note, we don't care about brackets or anything here, we're just defining the format of the date/time stamp.
+'*$SearchDate*' is the variable used in the PERL script to do exactly what it says, search for the date stamp. I have it
+set up to look for the format '*year-month-dateThour:minute:secondZ*', which is the ISO-8601 format.
 
 ```Perl
 ...
-$SearchDate = TimeFilter('%Y-%m-%d %H:%M:%S');
+$SearchDate = TimeFilter('%Y-%m-%dT%H:%M:%SZ');
 ...
 ```
 
-If you changed the '**stamp**' variable so it was formatted as '*month/day/year hour:minute*' (ex: '*[09/27/2018 18:38]*') then you'd update the **$SearchDate** variable as follows (note: no mention of the square brackets!):
+If you changed the '**stamp**' variable so it was formatted as '*month/day/year hour:minute*'
+(ex: '*09/27/2018 18:38*') then you'd update the **$SearchDate** variable as follows:
 
 ```Perl
 ...
@@ -194,31 +245,8 @@ $SearchDate = TimeFilter('%m/%d/%Y %H:%M');
 
 ### The search REGEX
 
-The PERL script uses a '*regular expression*' (REGEX) to search within the log file for '*$SearchDate*'.  For the default date stamp, this specification looks like:
+The PERL script uses a '*regular expression*' (REGEX) to search within the log file for '*$SearchDate*'. For the default
-
+date stamp, this specification looks like:
-```Perl
-...
-if ($ThisLine =~ m/\[$SearchDate\] /o) {
-...
-```
-
-The REGEX appears between '*m/*' and '*/o*'.  In this case, it searches for '*$SearchDate*' inside [square brackets] appearing anywhere on the line.  This is because ANSI colour-codes often appear before the date stamp in the default log file.  If you have modified this so that your date stamp appears at the beginning of the line and in the example format in the section above (using slashes instead of dashes) then you'd rewrite this REGEX as follows:
-
-```Perl
-...
-if ($ThisLine =~ m/^\[$SearchDate\] /o) {
-...
-```
-
-or using regular brackets anywhere on the line:
-
-```Perl
-...
-if ($ThisLine =~ m/\($SearchDate\) /o) {
-...
-```
-
-or without any brackets but appearing at the beginning of the line:
 
 ```Perl
 ...
@@ -226,12 +254,30 @@ if ($ThisLine =~ m/^$SearchDate /o) {
 ...
 ```
 
+The REGEX appears between '*m/*' and '*/o*'. In this case, it searches for '*$SearchDate*' appearing at the
+beginning (^) of the line. If you want to search anywhere in the line instead of the beginning, remove the caret (^):
+
+```Perl
+...
+if ($ThisLine =~ m/$SearchDate /o) {
+...
+```
+
+or maybe you changed the date stamp to appear in square brackets at the start of the line:
+
+```Perl
+...
+if ($ThisLine =~ m/^\[$SearchDate\] /o) {
+...
+```
+
 ## Testing
 
-Run *logwatch --help* and note the options.  You can test just this service locally on your screen with the following command (assuming you kept default names for everything):
+Run *logwatch --help* and note the options. You can test just this service locally on your screen with the following
+command (assuming you kept default names for everything):
 
 ```Bash
-# Summary output, entire duration of log file
+# Summary output, entire duration of the log file
 logwatch --service cfddns --output stdout --format text --range all --detail 0
 
 # Minimal detail, yesterday only
@@ -243,4 +289,6 @@ logwatch --service cfddns --output stdout --format text --range today --detail 5
 
 ## Final thoughts
 
-That's it!  I'm a horrible PERL programmer so if anyone can optimize/improve the script file used for Logwatch then please do it!  Otherwise, I hope this made sense and helped you integrate the updater script with Logwatch for easy monitoring :-)
+That's it!  I'm a horrible PERL programmer, so if anyone can optimize/improve the script file used for Logwatch, then
+please do it!  Otherwise, I hope this made sense and helped you integrate the updater script with Logwatch for easy
+monitoring :-)

etc/logwatch/conf/logfiles/cfddns.conf

@@ -10,4 +10,4 @@ Archive = /path/to/your/logfile.ext.?.gz
 # You don't need to change this unless you have altered the 'stamp' variable in
 # the script in which case you will want to update the regex in the custom pl
 # script below
-*sqFullStampAnywhere
+*iso8601timestamp

etc/logwatch/scripts/services/cfddns

@@ -4,7 +4,7 @@
 # $Id$
 #############################################################################
 # Log: CloudFlare updater script (cfddns)
-# Revision 2.1  2021/05/08
+# Revision 3.0  2026/07/25
 # Written by Asif Bacchus
 #############################################################################
 
@@ -31,22 +31,22 @@ my $key;
 if ($detailLevel == 0) {
     ### process logfile and summarize message types
     while (defined(my $ThisLine = <STDIN>)) {
-        if ($ThisLine =~ /ERR: Unable to update IP address/) {
+        if ($ThisLine =~ /[FAIL] Unable to update the IP address for/) {
             $summaryFailedUpdate++;
         }
-        elsif ($ThisLine =~ /ERROR: /) {
+        elsif ($ThisLine =~ /[FAIL] /) {
             $summaryErr++;
         }
-        elsif ($ThisLine =~ /WARN: Cannot find existing record/) {
+        elsif ($ThisLine =~ /[WARN] Cannot find an existing record matching/) {
             $summaryInvalidHost++;
         }
-        elsif ($ThisLine =~ /WARNING: /){
+        elsif ($ThisLine =~ /[WARN] /){
             $summaryWarning++;
         }
-        elsif ($ThisLine =~ /SUCCESS: /) {
+        elsif ($ThisLine =~ /[SUCCESS] /) {
             $summaryUpdated++;
         }
-        elsif ($ThisLine =~ /already up-to-date/) {
+        elsif ($ThisLine =~ /already up to date/) {
             $summaryUpToDate++;
         }
     }
@@ -56,7 +56,7 @@ if ($detailLevel == 0) {
         $reportHash{"Entries successfully updated"} = $summaryUpdated;
     }
     if ($summaryUpToDate > 0) {
-        $reportHash{"Entries already up-to-date"} = $summaryUpToDate;
+        $reportHash{"Entries already up to date"} = $summaryUpToDate;
     }
     if ($summaryFailedUpdate > 0) {
         $reportHash{"Hosts failed to update"} = $summaryFailedUpdate;
@@ -80,16 +80,16 @@ if ($detailLevel == 0) {
 ### a summary count
 elsif ($detailLevel >= 1 && $detailLevel <= 4) {
     while (defined(my $ThisLine = <STDIN>)) {
-        if ($ThisLine =~ /ERR: /) {
+        if ($ThisLine =~ /[ERR] /) {
             print $ThisLine;
         }
-        elsif ($ThisLine =~ /WARN: /) {
+        elsif ($ThisLine =~ /[WARN] /) {
             print $ThisLine;
         }
-        elsif ($ThisLine =~ /SUCCESS: /) {
+        elsif ($ThisLine =~ /[SUCCESS] /) {
             print $ThisLine;
         }
-        elsif ($ThisLine =~ /already up-to-date/) {
+        elsif ($ThisLine =~ /already up to date/) {
             print $ThisLine;
         }
     }
@@ -98,25 +98,19 @@ elsif ($detailLevel >= 1 && $detailLevel <= 4) {
 ### debugging messages
 elsif ($detailLevel == 5) {
     while (defined(my $ThisLine = <STDIN>)) {
-        if ($ThisLine =~ /ERR: /) {
+        if ($ThisLine =~ /[ERR] /) {
-            print $ThisLine;
-        }
-        elsif ($ThisLine =~ /ERROR: /) {
             print $ThisLine;
         }
         elsif ($ThisLine =~ /CF-ERR: /) {
             print $ThisLine;
         }
-        elsif ($ThisLine =~ /WARN: /) {
+        elsif ($ThisLine =~ /[WARN] /) {
             print $ThisLine;
         }
-        elsif ($ThisLine =~ /WARNING: /) {
+        elsif ($ThisLine =~ /[SUCCESS] /) {
             print $ThisLine;
         }
-        elsif ($ThisLine =~ /SUCCESS: /) {
+        elsif ($ThisLine =~ /already up to date/) {
-            print $ThisLine;
-        }
-        elsif ($ThisLine =~ /already up-to-date/) {
             print $ThisLine;
         }
     }

etc/logwatch/scripts/shared/iso8601timestamp

@@ -5,9 +5,8 @@
 ##########################################################################
 
 ###############################################################################
-## Filter dates in full-date-time international format, surrounded by square
+## Filter dates in ISO-8601 format located at the start of a given line
-## brackets located anywhere on a given line
+## Format: '%Y-%m-%dT%H:%M:%SZ'
-## Format: '[%Y-%m-%d %H:%M:%S]'
 ###############################################################################
 
 use Logwatch ':dates';
@@ -15,7 +14,7 @@ use Logwatch ':dates';
 my $Debug = $ENV{'LOGWATCH_DEBUG'} || 0;
 
 ### Specify the format of the date/time stamp itself
-$SearchDate = TimeFilter('%Y-%m-%d %H:%M:%S');
+$SearchDate = TimeFilter('%Y-%m-%dT%H:%M:%SZ');
 
 if ( $Debug > 5 ) {
    print STDERR "DEBUG: Inside FullDateTime...\n";
@@ -24,7 +23,7 @@ if ( $Debug > 5 ) {
 
 while (defined($ThisLine = <STDIN>)) {
    ### specify the regex that defines how to find 'SearchDate'
-   if ($ThisLine =~ m/\[$SearchDate\] /o) {
+   if ($ThisLine =~ m/^$SearchDate /o) {
       print $ThisLine;
    }
 }