With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
cuicClusterFirstNodeName
Cisco Unified Intelligence Center Cluster First Node Name
1.3.6.1.4.1.9.9.718.1.6.1.4
This object specifies the hostname of the first node server (Publisher node).
Back to CISCO-CUICAPPS-MIB MIB page.
IPHost Network monitor allows you to monitor cuicClusterFirstNodeName on Cisco device via the SNMP protocol. Download IPHost Network Monitor (500 monitors for 30 days, 50 monitors free forever) to start monitoring Cisco firewalls right now.