netsnmp-centos7

yum install net-snmp

nano /etc/snmp/snmpd.conf
rocommunity     rocommunityname <server NMS>
rocommunity     rocommunityname localhost
extend nginx /etc/snmp/nginx-stats
extend phpfpmsp /etc/snmp/phpfpm-sp
extend mysql /etc/snmp/mysql
extend memcached /etc/snmp/memcached
syslocation     Datacenter XX

systemctl start snmpd

#dari NMS/localhost
snmpwalk -v 2c -c rocommunityname -h <localhost/ip server remote>