linux:fail2ban
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linux:fail2ban [2018/03/04 04:32] – created kbadmin | linux:fail2ban [2018/03/04 04:58] – [Tutorial Installasi Fail2Ban & Tips Trick] kbadmin | ||
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====== Tutorial Installasi Fail2Ban & Tips Trick ====== | ====== Tutorial Installasi Fail2Ban & Tips Trick ====== | ||
- | Fail2ban adalah applikasi bruteforce detection | + | Fail2ban adalah applikasi bruteforce detection |
===== Installasi fail2ban di Centos ===== | ===== Installasi fail2ban di Centos ===== | ||
Line 8: | Line 8: | ||
</ | </ | ||
- | ===== Konfigurasi Fail2Ban | + | ===== Membuat Custom Log File / |
- | Kami menggunakan | + | Defaultnya log fail2ban |
+ | < | ||
+ | nano / | ||
+ | </ | ||
+ | ubah logtarget menjadi seperti ini | ||
+ | < | ||
+ | logtarget = / | ||
+ | </ | ||
+ | ===== Konfigurasi Fail2Ban Haproxy dan CSF ===== | ||
+ | Kami menggunakan fail2ban untuk membaca log haproxy dan memblokirnya dengan CSF. Log yang kami baca adalah aktifitas login menggunakan mekanisme POST pada url wp-login.php | ||
+ | < | ||
+ | nano nano / | ||
+ | </ | ||
+ | |||
+ | kami isi | ||
+ | < | ||
+ | [INCLUDES] | ||
+ | before = common.conf | ||
+ | |||
+ | [Definition] | ||
+ | _daemon = haproxy | ||
+ | |||
+ | failregex = ^.*haproxy\[[0-9]+\]*: | ||
+ | ignoreregex = | ||
+ | </ | ||
+ | |||
+ | Pastikan anda sudah menguji regular expresion tersebut dengan menggunakan | ||
+ | < | ||
+ | fail2ban-regex / | ||
+ | </ | ||
+ | dan apabila regex nya benar hasilnya seperti ini | ||
+ | < | ||
+ | Results | ||
+ | ======= | ||
+ | |||
+ | Failregex: 7660 total | ||
+ | |- #) [# of hits] regular expression | ||
+ | | 1) [7660] ^.*haproxy\[[0-9]+\]*: | ||
+ | `- | ||
+ | |||
+ | Ignoreregex: | ||
+ | |||
+ | Date template hits: | ||
+ | |- [# of hits] date format | ||
+ | | [520991] (?:DAY )?MON Day 24hour: | ||
+ | `- | ||
+ | |||
+ | Lines: 520991 lines, 0 ignored, 7660 matched, 513331 missed | ||
+ | [processed in 126.74 sec] | ||
+ | </ | ||
+ | |||
+ | sekitar 7660 baris match dengan regex tersebut. | ||
+ | |||
+ | selanjutnya adalah membuat jail | ||
+ | < | ||
+ | nano / | ||
+ | </ | ||
+ | isi dengan | ||
+ | < | ||
+ | [haproxy-wp] | ||
+ | enabled | ||
+ | bantime | ||
+ | findtime = 120 | ||
+ | maxretry = 6 | ||
+ | filter | ||
+ | logpath | ||
+ | port = http,https | ||
+ | action | ||
+ | </ | ||
+ | |||
+ | selanjutnya membuat action yang di integrasikan dengan CSF. | ||
+ | < | ||
+ | nano / | ||
+ | </ | ||
+ | isi dengan | ||
+ | < | ||
+ | # CSF / fail2ban integration from The Digital FAQ (digitalFAQ.com) | ||
+ | |||
+ | [Definition] | ||
+ | actionstart = | ||
+ | actionstop = | ||
+ | actioncheck = | ||
+ | actionban = csf -d <ip> Added by Fail2Ban for < | ||
+ | actionunban = csf -dr <ip> | ||
+ | |||
+ | [Init] | ||
+ | name = haproxy-wp | ||
+ | </ | ||
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