Werk #14130: Clarify "Check DNS service"

Component

Checks & agents

Title

Clarify "Check DNS service"

Date

May 23, 2022

Level

Trivial Change

Class

Bug Fix

Compatibility

Incompatible - Manual interaction might be required

Checkmk versions & editions

2.2.0b1	Checkmk Raw (CRE), Checkmk Enterprise (CEE), Checkmk Cloud (CCE), Checkmk MSP (CME)
2.1.0p3	Checkmk Raw (CRE), Checkmk Enterprise (CEE), Checkmk MSP (CME)

Previously, the parameter DNS Server of Check DNS service rule was broken. The options this host and default DNS Server would both do the same: They would use the default DNS server(s) specified inside of /etc/resolve.conf. With this werk, the option this host now (again) will use the address of the host on which the service is generated. Secondly, the rule has been reworked to be more concise.

Intervention is necessary if

you have explicitely set the DNS Server to this host and
want your site to operate in the same fashion as before.

In this case, you can set the option DNS Server to Use the default DNS server(s) specified in /etc/resolv.conf.

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