Adding upstream version 1.43.0.upstream/1.43.0

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

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+<!--startmeta
+custom_edit_url: "https://github.com/netdata/netdata/edit/master/collectors/python.d.plugin/fail2ban/README.md"
+meta_yaml: "https://github.com/netdata/netdata/edit/master/collectors/python.d.plugin/fail2ban/metadata.yaml"
+sidebar_label: "Fail2ban"
+learn_status: "Published"
+learn_rel_path: "Data Collection/Authentication and Authorization"
+message: "DO NOT EDIT THIS FILE DIRECTLY, IT IS GENERATED BY THE COLLECTOR'S metadata.yaml FILE"
+endmeta-->
+
+# Fail2ban
+
+
+<img src="https://netdata.cloud/img/fail2ban.png" width="150"/>
+
+
+Plugin: python.d.plugin
+Module: fail2ban
+
+<img src="https://img.shields.io/badge/maintained%20by-Netdata-%2300ab44" />
+
+## Overview
+
+Monitor Fail2ban performance for prime intrusion prevention operations. Monitor ban counts, jail statuses, and failed login attempts to ensure robust network security.
+
+
+It collects metrics through reading the default log and configuration files of fail2ban.
+
+
+This collector is supported on all platforms.
+
+This collector supports collecting metrics from multiple instances of this integration, including remote instances.
+
+The `fail2ban.log` file must be readable by the user `netdata`.
+  - change the file ownership and access permissions.
+  - update `/etc/logrotate.d/fail2ban`` to persist the changes after rotating the log file.
+
+To change the file ownership and access permissions, execute the following:
+
+```shell
+sudo chown root:netdata /var/log/fail2ban.log
+sudo chmod 640 /var/log/fail2ban.log
+```
+
+To persist the changes after rotating the log file, add `create 640 root netdata` to the `/etc/logrotate.d/fail2ban`:
+
+```shell
+/var/log/fail2ban.log {
+
+    weekly
+    rotate 4
+    compress
+
+    delaycompress
+    missingok
+    postrotate
+        fail2ban-client flushlogs 1>/dev/null
+    endscript
+
+    # If fail2ban runs as non-root it still needs to have write access
+    # to logfiles.
+    # create 640 fail2ban adm
+    create 640 root netdata
+}
+```
+
+
+### Default Behavior
+
+#### Auto-Detection
+
+By default the collector will attempt to read log file at /var/log/fail2ban.log and conf file at /etc/fail2ban/jail.local.
+If conf file is not found default jail is ssh.
+
+
+#### Limits
+
+The default configuration for this integration does not impose any limits on data collection.
+
+#### Performance Impact
+
+The default configuration for this integration is not expected to impose a significant performance impact on the system.
+
+
+## Metrics
+
+Metrics grouped by *scope*.
+
+The scope defines the instance that the metric belongs to. An instance is uniquely identified by a set of labels.
+
+
+
+### Per Fail2ban instance
+
+These metrics refer to the entire monitored application.
+
+
+This scope has no labels.
+
+Metrics:
+
+| Metric | Dimensions | Unit |
+|:------|:----------|:----|
+| fail2ban.failed_attempts | a dimension per jail | attempts/s |
+| fail2ban.bans | a dimension per jail | bans/s |
+| fail2ban.banned_ips | a dimension per jail | ips |
+
+
+
+## Alerts
+
+There are no alerts configured by default for this integration.
+
+
+## Setup
+
+### Prerequisites
+
+No action required.
+
+### Configuration
+
+#### File
+
+The configuration file name for this integration is `python.d/fail2ban.conf`.
+
+
+You can edit the configuration file using the `edit-config` script from the
+Netdata [config directory](https://github.com/netdata/netdata/blob/master/docs/configure/nodes.md#the-netdata-config-directory).
+
+```bash
+cd /etc/netdata 2>/dev/null || cd /opt/netdata/etc/netdata
+sudo ./edit-config python.d/fail2ban.conf
+```
+#### Options
+
+There are 2 sections:
+
+* Global variables
+* One or more JOBS that can define multiple different instances to monitor.
+
+The following options can be defined globally: priority, penalty, autodetection_retry, update_every, but can also be defined per JOB to override the global values.
+
+Additionally, the following collapsed table contains all the options that can be configured inside a JOB definition.
+
+Every configuration JOB starts with a `job_name` value which will appear in the dashboard, unless a `name` parameter is specified.
+
+
+<details><summary>Config options</summary>
+
+| Name | Description | Default | Required |
+|:----|:-----------|:-------|:--------:|
+| log_path | path to fail2ban.log. | /var/log/fail2ban.log | False |
+| conf_path | path to jail.local/jail.conf. | /etc/fail2ban/jail.local | False |
+| conf_dir | path to jail.d/. | /etc/fail2ban/jail.d/ | False |
+| exclude | jails you want to exclude from autodetection. |  | False |
+| update_every | Sets the default data collection frequency. | 1 | False |
+| priority | Controls the order of charts at the netdata dashboard. | 60000 | False |
+| autodetection_retry | Sets the job re-check interval in seconds. | 0 | False |
+| penalty | Indicates whether to apply penalty to update_every in case of failures. | yes | False |
+| name | Job name. This value will overwrite the `job_name` value. JOBS with the same name are mutually exclusive. Only one of them will be allowed running at any time. This allows autodetection to try several alternatives and pick the one that works. |  | False |
+
+</details>
+
+#### Examples
+
+##### Basic
+
+A basic example configuration.
+
+```yaml
+local:
+  log_path: '/var/log/fail2ban.log'
+  conf_path: '/etc/fail2ban/jail.local'
+
+```
+
+
+## Troubleshooting
+
+### Debug Mode
+
+To troubleshoot issues with the `fail2ban` collector, run the `python.d.plugin` with the debug option enabled. The output
+should give you clues as to why the collector isn't working.
+
+- Navigate to the `plugins.d` directory, usually at `/usr/libexec/netdata/plugins.d/`. If that's not the case on
+  your system, open `netdata.conf` and look for the `plugins` setting under `[directories]`.
+
+  ```bash
+  cd /usr/libexec/netdata/plugins.d/
+  ```
+
+- Switch to the `netdata` user.
+
+  ```bash
+  sudo -u netdata -s
+  ```
+
+- Run the `python.d.plugin` to debug the collector:
+
+  ```bash
+  ./python.d.plugin fail2ban debug trace
+  ```
+
+### Debug Mode
+
+
+
+