I talked about MRTG stats for Squid in the past but apparently forgot to include the .mib file.
So, here it is. Download this file and put it in /usr/share/squid/mib.txt.
I don’t quite remember where I found that mib file. Probably included with Squid on Gentoo or the world wide web… But I couldn’t find it on Debian, so here it is. And be sure to add these lines to your Squid config:
acl snmppublic snmp_community public snmp_port 3401 snmp_access allow snmppublic all
This is what it should look like (low usage Squid):