Hi, I'm trying to monitor a box via SNMP. All TCP Ipservices are being monitored perfectly however UDP IPservices are not working. I'm specifically trying to monitor NTPD and DNS which both run on UDP. If SNMP does not work well with UDP, is it possible to run SNMP to monitor the TCP IPservices and set Portscan to monitor UDP services? If so, what steps would I need to take?
Using portscan to monitor UDP services would work to an extent. If the Zenoss server didn't get an ICMP port unreachable message back from the monitored device it could assume that the UDP port was listening, but of course this is just one of many common reasons a ICMP port unreachable wouldn't be sent back.
I would instead recommend doing actual service monitoring of whatever is supposed to be running on the UDP port in question. If it is a DNS server, use the DnsMonitor ZenPack to actually verify the operation of a DNS lookup and so on.
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