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TCP endpoint monitoring with Netdata

This module monitors one or more TCP services availability and response time.


It produces the following charts for every monitoring port:

  • TCP Check Status in boolean
  • Current State Duration in seconds
  • TCP Connection Latency in ms


Edit the go.d/portcheck.conf configuration file using edit-config from the Netdata config directory, which is typically at /etc/netdata.

cd /etc/netdata # Replace this path with your Netdata config directory
sudo ./edit-config go.d/portcheck.conf

Here is an example for 2 servers:

- name: server1
- 22
- 23

- name: server2
- 80
- 81
- 8081

For all available options please see module configuration file.


To troubleshoot issues with the portcheck collector, run the go.d.plugin with the debug option enabled. The output should give you clues as to why the collector isn't working.

First, navigate to your plugins' directory, usually at /usr/libexec/netdata/plugins.d/. If that's not the case on your system, open netdata.conf and look for the setting plugins directory. Once you're in the plugin's directory, switch to the netdata user.

cd /usr/libexec/netdata/plugins.d/
sudo -u netdata -s

You can now run the go.d.plugin to debug the collector:

./go.d.plugin -d -m portcheck

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