I’m setting up a router which as the option of using entware to extend the functionality. This is great, as I want to have snmpd running on the network device for monitoring and such.
After setting up entware, I installed the snmpd package.
Easy-peasy. Well…not really. No sample config or start scripts are included in the package. Not a huge deal. Just needed to bodge some in place.
For a snmpd.conf let’s do this:
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com2sec local default [PASSWORD]
group localgroup v2c local
access localgroup "" any noauth exact all all none
view all included .1 80
syslocation Vancouver, BC
syscontact [[email protected]]
dontLogTCPWrappersConnects yes
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For a init script, let’s using this hacky snmpd script.
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#!/bin/sh
## Custom user script for snmpd
## This script auto called after system boots
## First param is:
## "start" (call at start entware),
## "stop" (call before stop entware),
## Include you custom rules for iptables below:
case "$1" in
start)
# start snmpd daemon
if [ -f /opt/var/run/snmpd.pid ]'
then
echo "snmpd running...`cat /opt/var/run/snmpd.pid`"
else
/opt/sbin/snmpd -Lsd -Lf /dev/null -u snmp -g snmp -I -smux -p /opt/var/run/snmpd.pid -c /opt/etc/snmp/snmpd.conf
echo "snmpd started"
fi
;'
stop)
# stop snmpd
kill `pgrep snmpd`
rm /opt/var/run/snmpd.pid
echo "snmpd stopped"
;'
status)
# status snmpd
if [ -f /opt/var/run/snmpd.pid ]'
then
echo "snmpd running...`cat /opt/var/run/snmpd.pid`"
else
echo "snmpd stopped"
fi
;'
*)
echo "Usage: $0 {start|stop|status}"
exit 1
;'
esac
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As you can see in the start script, it uses a snmp user and group. So we should create those.
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# adduser -s /bin/false -D -u 1161 snmp
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Done!