Table of Contents
Simple Network Management Protocol - SNMP
This was tested on Ubuntu.
Prevent ipv6 operation
In /etc/snmp/snmpd.conf, ensure the listedn diretive does not include ipv6 addresses:-
# Listen for connections on all interfaces (both IPv4 *and* IPv6) #agentAddress udp:161,udp6:[::1]:161 agentAddress udp:161
Restrict logging to syslog
snmpd logs to the system logger service which as default logs informative messages to /var/log/syslog. This disguises many useful messages with snmpd noise. To correct this, you can add in /etc/snmp/snmpd.conf:-
dontLogTCPWrappersConnects true
http://raetsel.wordpress.com/2008/02/15/snmpd-filling-up-varlogmessages/
Alternate way of doing that:
Add below to the default SNMPD config to specify logging levels 0-4 ONLY :
root@fmc-enf-ncom-10:/var/log# cat /etc/default/snmpd | grep SNMPDOPTS= SNMPDOPTS='-LS0-4d -Lf /dev/null -u snmp -g snmp -I -smux -p /var/run/snmpd.pid'
