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Markdown
67 lines
No EOL
3 KiB
Markdown
# Fail2Ban Blacklist for Repeat Offenders of Nginx (action.d)
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#### also includes wp-login attack filter using [nginx-limit-req] - see lower down
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### Author: Mitchell Krog <mitchellkrog@gmail.com>
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### Version: 1.1
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# Add on for Nginx Ultimate Bad Bot, User-Agent and Spam Referrer Blocker
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GitHub: https://github.com/mitchellkrogza/nginx-ultimate-bad-bot-blocker
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##### Tested On: Fail2Ban 0.9.3
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##### Server: Ubuntu 16.04
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##### Firewall: IPTables
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### Dependancies:
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#####requires nginxrepeatoffender.conf in /etc/fail2ban/filter.d folder
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#####requires nginxrepeatoffender.conf in /etc/fail2ban/action.d folder
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#####requires jail settings called [nginxrepeatoffender]
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#####requires nginx.repeatoffender file in /etc/fail2ban
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`create with sudo touch /etc/fail2ban/nginx.repeatoffender`
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`chmod +x /etc/fail2ban/nginx.repeatoffender`
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#### Drawbacks:
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Only works with IPTables
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#### Based on:
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The Recidive Jail from Fail2Ban
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This custom filter and action for Fail2Ban will monitor your Nginx logs and perma-ban
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any IP address that has generated far too many 444 or 403 errors over a 1 week period
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and ban them for 1 day. This works like a charm as an add-on for my Nginx Bad
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Bot Blocker which takes care of generating the 444 or 403 errors based on the extensive
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list of Bad Referers, Bots, Scrapers and IP addresses that it covers. This provides short
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block periods of one day which is enough to keep agressive bots from filling up your log files.
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See - https://github.com/mitchellkrogza/nginx-ultimate-bad-bot-blocker for more info on the Nginx Bad Bot Blocker
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This custom action requires a custom jail in your jail.local file for Fail2Ban
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Your jail file would be configured as follows
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```
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[nginxrepeatoffender]
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enabled = true
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logpath = %(nginx_access_log)s
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filter = nginxrepeatoffender
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banaction = nginxrepeatoffender
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bantime = 86400 ; 1 day
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findtime = 604800 ; 1 week
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maxretry = 20
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```
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# Blocking wp-login.php attacks on Wordpress Sites
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See the included /filter.d/nginx-limit-req.conf jail and filter for detecting and blocking wp-login attacks
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The original /filter.d/nginx-limit-req.conf file from Fail2Ban is included including a /filter.d/nginx-limit-req.local file with the settings you need to detect and block wp-logins.
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An example of the jail settings for your jail.local file is included in the jail.local sample.
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This works great at picking up wp-login attacks.
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Be sure to add the rate limiting zone to your nginx.conf as per instructions in /filter.d/nginx-limit-req.local
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### If this helped you [You can buy me a beer](https://www.paypal.com/cgi-bin/webscr?cmd=_s-xclick&hosted_button_id=BKF9XT6WHATLG):beer:
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## Update Notification System
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Please subscribe your email address to the mailing list at **https://groups.google.com/forum/#!forum/nginx-ultimate-bad-bot-blocker**
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or simply send a blank email to **nginx-ultimate-bad-bot-blocker+subscribe@googlegroups.com** to subscribe.
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Please make sure you are subscribed to notifications to be notified when the blocker is updated and also to be notified when any important or mission critical changes take place. |