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TCP endpoint collector

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

Metrics

All metrics have "portcheck." prefix.

Labels per scope:

  • global: host, port.
MetricScopeDimensionsUnits
statusglobalsuccess, failed, timeoutboolean
state_durationglobaltimeseconds
latencyglobaltimems

Configuration

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 3 servers:

Note: a literal IPv6 address must be enclosed in square brackets, as in "[::1]".

jobs:
- name: server1
host: 127.0.0.1
ports:
- 22
- 23

- name: server2
host: "[2001:DB8::1]"
ports:
- 80
- 8080

- name: server3
host: 203.0.113.10
ports:
- 80
- 81
- 8081

For all available options please see module configuration file.

Troubleshooting

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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