check_snmp_fail2ban

Project Notes

Hello,

Here is a check SNMP Linux to know the status of fail2ban but also know the number of host block.

In order not to have to use root access via SNMP, I created two scripts. one created by the state via root crontab and other intéroge state via a simple cat.

Good fun,

1. Install SNMP Linux Agent

2. copie the script to /usb/local/sbin/snmpcountfail2ban

3. Active run for the script :

chmod +x /usb/local/sbin/snmpcountfail2ban

4. Add entry to crontab :

vi /etc/crontab

# every 3min
*/3 * * * * root /bin/sh /usb/local/sbin/snmpcountfail2ban

5. copie the script to /usr/local/bin/snmpcount

6. Active run for the script :

chmod +x /usr/local/bin/snmpcount

7. Active the function on SNMPD :

vi /etc/snmpd.conf :

For fail2ban status running :

proc fail2ban-server 10 1

For fail2ban count drop host :

exec .1.3.6.1.4.1.2021.50 fail2bancount /bin/sh /usr/local/bin/snmpcount