Werk #17528: tcp_connections: Support for connection data from "ss" and "netstat"

Component

Checks & agents

Title

tcp_connections: Support for connection data from "ss" and "netstat"

Date

Mar 5, 2025

Level

Trivial Change

Class

Bug Fix

Compatibility

Compatible - no manual interaction needed

Checkmk versions & editions

2.5.0b1 Not yet released	Checkmk Raw (CRE), Checkmk Enterprise (CEE), Checkmk Cloud (CCE), Checkmk MSP (CME)
2.4.0b1	Checkmk Raw (CRE), Checkmk Enterprise (CEE), Checkmk Cloud (CCE), Checkmk MSP (CME)
2.3.0p29	Checkmk Raw (CRE), Checkmk Enterprise (CEE), Checkmk Cloud (CCE), Checkmk MSP (CME)

The ss command has a different order of columns in the output than netstat. This caused a ValueError when creating a monitoring rule for UDP or TCP connections, when the connection data is provided by the ss command.

This fix parses data from the ss command correctly to avoid the exception.

SUP-22678

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