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Fail2Ban pour les connexions

Un plugin compatible avec fail2ban, qui enregistre les échecs d'authentification.

Kevin Papst
Offert par
Kevin Papst

A Kimai plugin, which logs an error message for every failed login attempt to a dedicated logfile.

This logfile can be analyzed by fail2ban to block access and prevent authentication attacks.

Fail2Ban configurations

You should know how to use and configure fail2ban, we cannot help with that part! Having said that, here are some possible rules for your fail2ban configuration.

First the Kimai specific filter:

#/etc/fail2ban/filter.d/kimai2.conf
[Definition]
failregex = fail2ban.ERROR: <HOST> \[.*\] \[.*\]$

And the additional jail.local for Kimai:

#/etc/fail2ban/jail.local
[kimai2]
enabled   = true
filter    = kimai2
logpath   = /var/www/kimai2/var/log/fail2ban.log
port      = http,https
bantime   = 600
banaction = iptables-multiport
maxretry  = 3

Now touch the file to make sure it exists:

touch /var/www/kimai2/var/log/fail2ban.log

Credits

Installation

Copier les fichiers

Extract the ZIP file and upload the included directory and all files to your Kimai installation to the new directory: 

var/plugins/Fail2BanBundle/

The file structure needs to look like this afterwards:

var/plugins/
├── Fail2BanBundle
│   ├── Fail2BanBundle.php
|   └ ... more files and directories follow here ...

Effacer le cache

After uploading the files, Kimai needs to know about the new plugin. It will be found once the cache was re-built. Call these commands from the Kimai directory:

How to reload Kimai cache

bin/console kimai:reload --env=prod

It is not advised, but in case the above command fails you could try:

rm -r var/cache/prod/*

You might have to set file permissions afterwards:

Adjust file permission

You have to allow PHP (your webserver process) to write to var/ and it subdirectories.

Here is an example for Debian/Ubuntu (to be executed inside the Kimai directory):

chown -R :www-data .
chmod -R g+r .
chmod -R g+rw var/
Test Kimai before executing these commands (they are likely not required in a shared-hosting environment). You probably need to prefix them with sudo and the group might be called different than www-data.

Mises à jour

Updating the plugin works exactly like the installation:

  • Delete the directory var/plugins/Fail2BanBundle/
  • Execute all installation steps again:
    • Copier les fichiers
    • Effacer le cache

Compatibilité

Le tableau suivant contient une comparaison entre le greffon et la version minimale requise de Kimai.

Version groupée Version minimale de Kimai
2.0 2.0
1.2 1.18
Offert par

Kevin Papst

Building Kimai since 2009

Si vous avez des questions, veuillez utiliser les informations de contact suivantes pour contacter directement le développeur.
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