snmp

Change AUTHPASS, PRIVPASS and USERNAME in examples as needed

install snmp and configure on EL

yum install net-snmp
yum install net-snmp-utils
service snmpd stop
net-snmp-create-v3-user -ro -A AUTHPASS -X PRIVPASS -a SHA -x AES USERNAME
systemctl restart snmpd.service
systemctl enable snmpd.service

snmpwalk

snmpwalk -v3 -l authPriv -u USERNAME -a SHA -A AUTHPASS -x AES -X PRIVPASS IPADDRESS