I've been trying to understand how to measure TCP 3 way handshake response times on a random port, but there's no clear documentation, which is very surprising. I've tried using net.tcp.service.perf, but it only returns 0, and I also know that Zabbix is not actually making the connection to the port in question. Also net.tcp.service.perf seems to return two metrics, port status and response time, but how to you select which of the two metrics to return?
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Hi, according to the documentation https://www.zabbix.com/documentation...s/zabbix_agent it returns one value. 0 means service is down, other values are the response time.
If you get just zeros, you need to check your networking stuff: firewalls, routes, ACLs, security groups, whatever affects your networking, besides the actual destination service.
Markku
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