====== 安裝 fail2ban Agent 的方式 ======
  * 返回 [[tech:librenms]]

  * 這是 SNMP Extend

  * 至 fail2ban 主機內安裝 <code sh>
wget https://github.com/librenms/librenms-agent/raw/master/snmp/fail2ban -O /etc/snmp/fail2ban
chmod +x /etc/snmp/fail2ban
</code>
  * 確認 fail2ban 可以正確執行<code sh>
/etc/snmp/fail2ban</code> 如果正確執行應該可以看到類似的訊息<cli>
{"version":"1","error":"0","errorString":"fail2ban-client exited with 0","data":{"jails":{"roundcube-iredmail":"0","postfix-pregreet-iredmail":"1","postfix-iredmail":"0","dovecot-iredmail":"0","sshd":"0","nginx-http-auth":"0"},"total":1}}
</cli>
  * 修改 snmpd 設定<code>
vi /etc/snmp/snmpd.conf</code><file>
:
extend fail2ban /etc/snmp/fail2ban
</file>重新啟動 snmpd <code sh>
systemctl restart snmpd
</code>

===== 參考網址 =====
  * https://docs.librenms.org/Extensions/Applications/#fail2ban

{{tag>librenms agent snmp_ext}}