Werk #13165: check_dns: Act case-insensitive

Name: checkmk
Rating: 4.7 (114 reviews)

Component

Checks & agents

Title

check_dns: Act case-insensitive

Date

Sep 20, 2021

Level

Trivial Change

Class

Bug Fix

Compatibility

Compatible - no manual interaction needed

Checkmk versions & editions

2.1.0b1	Checkmk Raw (CRE), Checkmk Enterprise (CEE), Checkmk MSP (CME)
2.0.0p12	Checkmk Raw (CRE), Checkmk Enterprise (CEE), Checkmk MSP (CME)

When comparing the answer from DNS, check_dns always acts case-sensitive. That means, it marks answers as CRITICAL, when for instance the hostname in check-mk is lowercase and the answer comes as uppercase. This has been fixed.

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