Nginx Filters for Fail2Ban

When making my other servers I was double checking fail2ban configurations and noticed there is no fail2ban settings for nginx seeing as the webmail runs on it. Not sure if it’s an issue, or anything but I was hoping some other could tell me if I am on the right track, or if it’s not even necessary.

I did this for my email server which runs nginx as the web server.

In the /etc/fail2ban/jail.local

enabled  = true
filter   = nginx-http-auth
port     = http,https
logpath  = /var/log/nginx/error.log
enabled  = true
port     = http,https
filter   = nginx-badbots
logpath  = /var/log/nginx/access.log
maxretry = 2

thencd /etc/fail2ban/filter.d
sudo nano nginx-http-auth.conf

make sure it’s like below


failregex = ^ \[error\] \d+#\d+: \*\d+ user "\S+":? (password mismatch|was not found in ".*"), client: <HOST>, server: \S+, request: "\S+ \S+ HTTP/\d+\.\d+", host: "\S+"\s*$
            ^ \[error\] \d+#\d+: \*\d+ no user/password was provided for basic authentication, client: <HOST>, server: \S+, request: "\S+ \S+ HTTP/\d+\.\d+", host: "\S+"\s*$

ignoreregex =

copy badbots config from apache
sudo cp apache-badbots.conf nginx-badbots.conf