Ketika saya menjalankan perintah ini fail2ban-client status sshdsaya mendapatkan ini:
Status for the jail: sshd
|- Filter
| |- Currently failed: 1
| |- Total failed: 81
| `- File list: /var/log/auth.log
`- Actions
|- Currently banned: 2
|- Total banned: 8
`- Banned IP list: 218.65.30.61 116.31.116.7
Ini hanya menampilkan dua IP dalam daftar IP yang dilarang, bukan 8 seperti yang dikatakan Total Banned.
Sementara saya melakukannya tail -f /var/log/auth.logsaya mendapatkan ini:
Mar 29 11:08:40 DBSERVER sshd[29163]: error: maximum authentication attempts exceeded for root from 218.65.30.61 port 50935 ssh2 [preauth]
Mar 29 11:08:40 DBSERVER sshd[29163]: Disconnecting: Too many authentication failures [preauth]
Mar 29 11:08:40 DBSERVER sshd[29163]: PAM 5 more authentication failures; logname= uid=0 euid=0 tty=ssh ruser= rhost=218.65.30.61 user=root
Mar 29 11:08:40 DBSERVER sshd[29163]: PAM service(sshd) ignoring max retries; 6 > 3
Mar 29 11:08:44 DBSERVER sshd[29165]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=218.65.30.61 user=root
Mar 29 11:08:46 DBSERVER sshd[29165]: Failed password for root from 218.65.30.61 port 11857 ssh2
Mar 29 11:09:01 DBSERVER CRON[29172]: pam_unix(cron:session): session opened for user root by (uid=0)
Mar 29 11:09:01 DBSERVER CRON[29172]: pam_unix(cron:session): session closed for user root
Mar 29 11:10:01 DBSERVER CRON[29226]: pam_unix(cron:session): session opened for user root by (uid=0)
Mar 29 11:10:02 DBSERVER CRON[29226]: pam_unix(cron:session): session closed for user root
Mar 29 11:10:18 DBSERVER sshd[29238]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=113.122.43.185 user=root
Mar 29 11:10:20 DBSERVER sshd[29238]: Failed password for root from 113.122.43.185 port 46017 ssh2
Mar 29 11:10:33 DBSERVER sshd[29238]: message repeated 5 times: [ Failed password for root from 113.122.43.185 port 46017 ssh2]
Mar 29 11:10:33 DBSERVER sshd[29238]: error: maximum authentication attempts exceeded for root from 113.122.43.185 port 46017 ssh2 [preauth]
Mar 29 11:10:33 DBSERVER sshd[29238]: Disconnecting: Too many authentication failures [preauth]
Mar 29 11:10:33 DBSERVER sshd[29238]: PAM 5 more authentication failures; logname= uid=0 euid=0 tty=ssh ruser= rhost=113.122.43.185 user=root
Mar 29 11:10:33 DBSERVER sshd[29238]: PAM service(sshd) ignoring max retries; 6 > 3
Mar 29 11:11:36 DBSERVER sshd[29245]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=116.31.116.7 user=root
Mar 29 11:11:38 DBSERVER sshd[29245]: Failed password for root from 116.31.116.7 port 24892 ssh2
Mar 29 11:11:43 DBSERVER sshd[29245]: message repeated 2 times: [ Failed password for root from 116.31.116.7 port 24892 ssh2]
Mar 29 11:11:43 DBSERVER sshd[29245]: Received disconnect from 116.31.116.7 port 24892:11: [preauth]
Mar 29 11:11:43 DBSERVER sshd[29245]: Disconnected from 116.31.116.7 port 24892 [preauth]
Mar 29 11:11:43 DBSERVER sshd[29245]: PAM 2 more authentication failures; logname= uid=0 euid=0 tty=ssh ruser= rhost=116.31.116.7 user=root
Mar 29 11:12:39 DBSERVER sshd[29247]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=116.31.116.7 user=root
Mar 29 11:12:41 DBSERVER sshd[29247]: Failed password for root from 116.31.116.7 port 26739 ssh2
Mar 29 11:12:45 DBSERVER sshd[29247]: message repeated 2 times: [ Failed password for root from 116.31.116.7 port 26739 ssh2]
Mar 29 11:12:45 DBSERVER sshd[29247]: Received disconnect from 116.31.116.7 port 26739:11: [preauth]
Mar 29 11:12:45 DBSERVER sshd[29247]: Disconnected from 116.31.116.7 port 26739 [preauth]
Mar 29 11:12:45 DBSERVER sshd[29247]: PAM 2 more authentication failures; logname= uid=0 euid=0 tty=ssh ruser= rhost=116.31.116.7 user=root
Mar 29 11:13:41 DBSERVER sshd[29249]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=116.31.116.7 user=root
Mar 29 11:13:43 DBSERVER sshd[29249]: Failed password for root from 116.31.116.7 port 27040 ssh2
IP yang diblokir masih mencoba.
Namun ketika saya mengecek sudo iptables -L INPUT -v -nsaya mendapatkan ini:
Chain INPUT (policy ACCEPT 228 packets, 18000 bytes)
pkts bytes target prot opt in out source destination
6050 435K f2b-sshd tcp -- * * 0.0.0.0/0 0.0.0.0/0 multiport dports 22
Apa yang saya lakukan salah di sini?
Bagaimana saya bisa menampilkan semua daftar IP yang dilarang?
Terima kasih sebelumnya.
bantime. Jadikan 200matau bahkan lebih tinggi dan kemudian lakukan sudo service fail2ban restartdan kemudianfail2ban-client status sshd