January 2019
Intermediate to advanced
798 pages
20h 33m
English
Content preview from Zabbix 4 Network Monitoring - Third Edition
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Querying data that the Zabbix agent doesn't support
One thing we might be interested in is the number of open TCP connections. We can get this data using the netstat command (chances are netstat isn't installed on your distribution out of the box, but it should be possible to install this util from the net-tools package. If not, check out the following tip). Execute the following on the Zabbix server:
$ netstat -t
The -t switch tells netstat to list TCP connections only. As a result, we get a list of connections (trimmed here):
Active Internet connections (w/o servers)Proto Recv-Q Send-Q Local Address Foreign Address State tcp 0 0 localhost:zabbix-trapper localhost:52932 TIME_WAIT tcp 0 0 localhost:zabbix-agent localhost:59779 TIME_WAIT ...
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