MRTG Determine if snmp server is running or not

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Step # 2 : Determine if snmp server is running or not

Run 'ps' command to see if snmp server is running or not:

# ps -aux | grep snmp

Output:

root   5512  0.0  2.3  5872 3012 pts/0    S    22:04   0:00 /usr/sbin/snmpd

Alternatively, you can try any one of the following commands:

# lsof -i :199

Output:

COMMAND  PID USER   FD   TYPE DEVICE SIZE NODE NAME
snmpd   5512 root    4u  IPv4  34432       TCP *:smux (LISTEN)

OR try out netstat command:

# netstat -natv | grep ':199'

Output:

tcp        0      0 0.0.0.0:199             0.0.0.0:*               LISTEN

If you found snmp service is running or listing on port 199, see step #3; otherwise start the snmp service using the following command:

# service snmpd start

Make sure snmpd service starts automatically, when linux comes us (add snmpd service):

# chkconfig --add snmpd

Turn on snmpd service, enter:

# chkconfig snmpd on

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