Werk #18567: nginx_status: Prefer iproute2 (ss) over net-tools (netstat)

Component Checks & agents
Title nginx_status: Prefer iproute2 (ss) over net-tools (netstat)
Date Sep 5, 2025
Level Trivial Change
Class New Feature
Compatibility Incompatible - Manual interaction might be required
Checkmk versions & editions
2.5.0b1
Not yet released
Checkmk Raw (CRE), Checkmk Enterprise (CEE), Checkmk Cloud (CCE), Checkmk MSP (CME)

The prior implementation of the nginx_status plugin used the netstat utility to fetch network statistics. This was problematic because this utility is deprecated and no longer shipped to all Linux distributions.

To remedy this, the plugin now uses ss from the iproute2 package as its preferred utility. If this tool is not installed for whatever reason, the plugin will then fall back to netstat.

In order to make use of this, you will need to update the agent. Hence, why this change is incompatible.

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