start:howto:fail2ban
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start:howto:fail2ban [2015/06/15 14:19] ninos [jail.local] |
start:howto:fail2ban [2016/09/17 15:11] flames |
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| First we need to install fail2ban via aptitude | First we need to install fail2ban via aptitude | ||
| - | <konsole root> | + | |
| - | # aptitude update | + | # aptitude update && aptitude install fail2ban |
| - | # aptitude install fail2ban | + | |
| - | </konsole> | + | |
| ===== Configuration ===== | ===== Configuration ===== | ||
| Line 168: | Line 166: | ||
| enabled = true | enabled = true | ||
| - | port = http,https | + | port = 8080,4443 |
| - | filter = nginx-auth | + | filter = nginx-http-auth |
| logpath = /var/log/nginx/*error.log | logpath = /var/log/nginx/*error.log | ||
| maxretry = 6 | maxretry = 6 | ||
| - | |||
| - | # default action is now multiport, so apache-multiport jail was left | ||
| - | # for compatibility with previous (<0.7.6-2) releases | ||
| - | [imscp-multiport] | ||
| - | |||
| - | enabled = true | ||
| - | port = http,https | ||
| - | filter = nginx-auth | ||
| - | logpath = /var/log/nginx/*error.log | ||
| - | maxretry = 6 | ||
| - | |||
| - | [imscp-noscript] | ||
| - | |||
| - | enabled = true | ||
| - | port = http,https | ||
| - | filter = nginx-noscript | ||
| - | logpath = /var/log/nginx/*error.log | ||
| - | maxretry = 6 | ||
| - | |||
| - | [imscp-overflows] | ||
| - | |||
| - | enabled = true | ||
| - | port = http,https | ||
| - | filter = nginx-overflows | ||
| - | logpath = /var/log/nginx/*error.log | ||
| - | maxretry = 2 | ||
| Line 210: | Line 182: | ||
| filter = proftpd | filter = proftpd | ||
| logpath = /var/log/auth.log | logpath = /var/log/auth.log | ||
| + | maxretry = 6 | ||
| + | |||
| + | |||
| + | [vsftpd] | ||
| + | |||
| + | enabled = true | ||
| + | port = ftp,ftp-data,ftps,ftps-data | ||
| + | filter = vsftpd-custom | ||
| + | logpath = /var/log/vsftpd.log | ||
| maxretry = 6 | maxretry = 6 | ||
| Line 224: | Line 205: | ||
| enabled = true | enabled = true | ||
| - | port = smtp,ssmtp,imap2,imap3,imaps,pop3,pop3s | + | port = smtp,ssmtp,submission,imap2,imap3,imaps,pop3,pop3s |
| filter = dovecot | filter = dovecot | ||
| logpath = /var/log/mail.log | logpath = /var/log/mail.log | ||
| Line 239: | Line 220: | ||
| [roundcube] | [roundcube] | ||
| enabled = true | enabled = true | ||
| - | port = http,https | + | port = 8080,4443 |
| filter = roundcube | filter = roundcube | ||
| logpath = /var/www/imscp/gui/public/tools/webmail/logs/errors | logpath = /var/www/imscp/gui/public/tools/webmail/logs/errors | ||
| Line 246: | Line 227: | ||
| [rainloop] | [rainloop] | ||
| enabled = true | enabled = true | ||
| - | port = http,https | + | port = 8080,4443 |
| filter = rainloop | filter = rainloop | ||
| logpath = /var/log/nginx/*access.log | logpath = /var/log/nginx/*access.log | ||
| maxretry = 6 | maxretry = 6 | ||
| + | |||
| + | </code> | ||
| + | |||
| + | ==== nginx-http-auth.conf ==== | ||
| + | |||
| + | Please check if the file **/etc/fail2ban/filter.d/nginx-http-auth.conf** is available. | ||
| + | If not, please create the file with the following content: | ||
| + | |||
| + | <code> | ||
| + | # fail2ban filter configuration for nginx | ||
| + | |||
| + | |||
| + | [Definition] | ||
| + | |||
| + | |||
| + | 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*$ | ||
| + | |||
| + | ignoreregex = | ||
| + | |||
| + | # DEV NOTES: | ||
| + | # Based on samples in https://github.com/fail2ban/fail2ban/pull/43/files | ||
| + | # Extensive search of all nginx auth failures not done yet. | ||
| + | # | ||
| + | # Author: Daniel Black | ||
| </code> | </code> | ||
| Line 281: | Line 286: | ||
| ---- | ---- | ||
| - | |||
| - | Now restart fail2ban and test if all is working: | ||
| - | |||
| - | <konsole root> | ||
| - | # service fail2ban restart | ||
| - | </konsole> | ||
| - | |||
| ==== rainloop.conf ==== | ==== rainloop.conf ==== | ||
| Line 317: | Line 315: | ||
| ---- | ---- | ||
| - | Now restart fail2ban and test if all is working: | + | Restart fail2ban and test if all is working: |
| - | <konsole root> | ||
| # service fail2ban restart | # service fail2ban restart | ||
| - | </konsole> | + | |
| + | |||
| + | ===== vsftpd ===== | ||
| + | |||
| + | Now create a new file **/etc/fail2ban/filter.d/vsftpd-fixed.conf** and copy the following content into the file: | ||
| + | |||
| + | <code> | ||
| + | # Fail2Ban filter for vsftp | ||
| + | # | ||
| + | # Configure VSFTP for "dual_log_enable=YES", and have fail2ban watch | ||
| + | # /var/log/vsftpd.log instead of /var/log/secure. vsftpd.log file shows the | ||
| + | # incoming ip address rather than domain names. | ||
| + | |||
| + | [INCLUDES] | ||
| + | |||
| + | before = common.conf | ||
| + | |||
| + | [Definition] | ||
| + | |||
| + | __pam_re=\(?pam_unix(?:\(\S+\))?\)?:? | ||
| + | _daemon = vsftpd | ||
| + | |||
| + | failregex = ^%(__prefix_line)s%(__pam_re)s\s+Permission denied; logname=\S* uid=\S* euid=\S* tty=(ftp)? ruser=\S* rhost=<HOST>(?:\s+user=.*)?\s*$ | ||
| + | ^ \[pid \d+\] \[.+\]\s+FTP response: Client "::ffff:<HOST>",\s*"530 Permission denied\."\s*$ | ||
| + | |||
| + | ignoreregex = | ||
| + | |||
| + | # Version from fail2ban wiki does't work, fixed version | ||
| + | </code> | ||
| + | |||
| + | ---- | ||
| + | |||
| + | Restart fail2ban and test if all is working: | ||
| + | |||
| + | |||
| + | # service fail2ban restart | ||
| ===== Test & Debug ===== | ===== Test & Debug ===== | ||
| Line 327: | Line 361: | ||
| To test your current config use fail2ban-regex. Here an example for dovecot: | To test your current config use fail2ban-regex. Here an example for dovecot: | ||
| - | <konsole root> | ||
| # fail2ban-regex /var/log/mail.log /etc/fail2ban/filter.d/dovecot.conf | # fail2ban-regex /var/log/mail.log /etc/fail2ban/filter.d/dovecot.conf | ||
| - | </konsole> | ||
| ===== Links ===== | ===== Links ===== | ||
| Fail2ban offical website --> [[http://www.fail2ban.org]] | Fail2ban offical website --> [[http://www.fail2ban.org]] | ||
/var/www/virtual/i-mscp.net/wiki/htdocs/data/pages/start/howto/fail2ban.txt · Last modified: 2016/09/17 15:12 by flames
