Configure SNMP on my Server

Configure SNMP on my Server

First all I found that the package  net-snmp must be installed on the system

After install the package, the file snmpd.conf must be edited in order to allow the queries
In my case, just add...

rocommunity secret  186.151.0.0/16  # <- network for example pourposes


configure iptables on the server to let UDP traffic flow on port 161,162
iptables -D IN_public_allow -s 186.151.XXX.XXX -p udp -m udp --dport 161 -j ACCEPT
iptables -D IN_public_allow -s 186.151.XXX.XXX -p udp -m udp --dport 162 -j ACCEPT

Let check on client side

alpine:~# snmpget -v 1 -c secret -Oqv 181.115.XXX.XXX IF-MIB::ifInOctets.2
3018304626
alpine:~# snmpget -v 1 -c secret -Oqv 181.115.XXX.XXX IF-MIB::ifOutOctets.2
767023988