check_dns: better time measurement #6695
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alpine does not output ms using date, therefore we use perl to get a more accurate measurement of the dns response time. The script output is now even more similar to nagios check_dns.
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DerLinkman
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Dec 12, 2025
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Please also increase the container image version +1 inside docker-compose.yml
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Follow up to #6685
Alpine does not output ms using date, therefore we use perl to get a more accurate measurement of the dns response time.
The script output is now even more similar to nagios check_dns.
Contribution Guidelines
What does this PR include?
An improvement to the check_dns script. DNS response time is now measured more accurate.
Short Description
An improvement to the check_dns script. DNS response time is now measured more accurate.
Affected Containers
Did you run tests?
What did you tested?
the check_dns script in the watchdog container on my mailcow server.
What were the final results? (Awaited, got)
The output of the dns response time is now accurately measured in ms instead of just seconds.