Can I add a server to check a specific port on the server for concurrent connections?

Help
1

Currently, we want to register and utilize not only network devices, but also servers.

I want to check the concurrent connection information of the server’s port, for example, 80 or 443, and I want to see it in a graph.

I’m writing this because searching through the community hasn’t turned up anything.

I currently have the nagios plugins installed, but I’m not getting any further.

Is there any other plugin I should use?

Thank you. Best wishes for the new year.

2

You probably need to use the agent or plugin (install/configure) that gets the metrics you want.

For example the rrdcached one shows maximum connections for rrdcached (along with other things)

Same for the mysql one

3

Thank you for your response.
However, my knowledge is limited and I did not understand that link.
so I decided to look for another way.
Thanks again.

4

I’d say it can be achieved easily using snmpd and custom oids. You just run snmpd, extend it’s config with freshly created OID and feed it with a script as simple as (as an example for DNS service):

netstat -tupan | grep 53 | grep ESTABLISHED | wc -l

I hope you get the idea.