telegraf/plugins/inputs/fail2ban
Rickard von Essen 371638ce56 Enable fail2ban on all platforms (#3151) 2017-08-22 12:58:00 -07:00
..
README.md Add input plugin for Fail2ban (#2875) 2017-06-21 12:42:13 -07:00
fail2ban.go Enable fail2ban on all platforms (#3151) 2017-08-22 12:58:00 -07:00
fail2ban_test.go Add input plugin for Fail2ban (#2875) 2017-06-21 12:42:13 -07:00

README.md

Fail2ban Plugin

The fail2ban plugin gathers counts of failed and banned ip addresses from fail2ban.

This plugin run fail2ban-client command, and fail2ban-client require root access. You have to grant telegraf to run fail2ban-client:

  • Run telegraf as root. (deprecate)
  • Configure sudo to grant telegraf to fail2ban-client.

Using sudo

You may edit your sudo configuration with the following:

telegraf ALL=(root) NOPASSWD: /usr/bin/fail2ban-client status *

Configuration:

# Read metrics from fail2ban.
[[inputs.fail2ban]]
  ## fail2ban-client require root access.
  ## Setting 'use_sudo' to true will make use of sudo to run fail2ban-client.
  ## Users must configure sudo to allow telegraf user to run fail2ban-client with no password.
  ## This plugin run only "fail2ban-client status".
  use_sudo = false

Measurements & Fields:

  • fail2ban
    • failed (integer, count)
    • banned (integer, count)

Tags:

  • All measurements have the following tags:
    • jail

Example Output:

# fail2ban-client status sshd
Status for the jail: sshd
|- Filter
|  |- Currently failed: 5
|  |- Total failed:     20
|  `- File list:        /var/log/secure
`- Actions
   |- Currently banned: 2
   |- Total banned:     10
   `- Banned IP list:   192.168.0.1 192.168.0.2
$ ./telegraf --config telegraf.conf --input-filter fail2ban --test
fail2ban,jail=sshd failed=5i,banned=2i 1495868667000000000