The question is similar to this but goes a bit further. I'd like to monitor the number of sockets in a specific state for a specific port using Prometheus exporter. For example I'd like to monitor the number of sockets in ESTABLISHED state to my Oracle Database listening on port 1521.
Currently I'm using a simple shell script which does basically a netstat -tan | grep ESTABLISHED | grep ':1521' | wc-l and I'm wondering if I could replace that with some data from the Prometheus node exporter?