IPTables SNMP

See bold lines (192.168.1.9/32 is my monitor): nano /etc/sysconfig/iptables

# Generated by iptables-save v1.4.7 on Thu Jun 14 14:51:55 2012 *filter :INPUT ACCEPT [0:0] :FORWARD ACCEPT [0:0] :OUTPUT ACCEPT [1842:173072] -A INPUT -m state –state RELATED,ESTABLISHED -j ACCEPT -A INPUT -p icmp -j ACCEPT -A INPUT -i lo -j ACCEPT -A INPUT -p tcp -m state –state NEW -m tcp –dport 22 -j ACCEPT -A INPUT -p udp -m udp -s 192.168.1.9/32 –dport 161:162 -j ACCEPT -A INPUT -j REJECT –reject-with icmp-host-prohibited -A FORWARD -j REJECT –reject-with icmp-host-prohibited COMMIT # Completed on Thu Jun 14 14:51:55 2012

service iptables restart