instalation of service
yum install -y net-snmp-utils
I’m careful so I do a backup of the snmpd config file.
mv /etc/snmp/snmpd.conf /etc/snmp/snmpd.conf.bak
Create a new config file.
echo rocommunity public>/etc/snmp/snmpd.conf
Restart the snmpd service for enable change
/etc/init.d/snmpd start
How to test
snmpwalk -v 1 -c public -O e 127.0.0.1