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It looks like a regex problem in the test. Please try change below:

-$suseip =~ s/.(\d+.\d+.\d+.\d+)./$1/s;
+$suseip =~ s/.^\+.\d+.\d+.\d+)$./$1/ms;

tonyyuan wrote:

It looks like a regex problem in the test. Please try change below:

-$suseip =~ s/.(\d+.\d+.\d+.\d+)./$1/s;
+$suseip =~ s/.^\+.\d+.\d+.\d+)$./$1/ms;

Thanks for the suggestion, but the failures don't have to do with the regex, which indeed misses first and last character of the ip address, but that is not a problem. From the dig output, the www.suse.com ips seem to belong to different network. I assume it has to do with the openqa workers networking, because I couldn't reproduce this on my local workstation.

www.suse.com was recently containerized, according to one of our IT colleagues. The DNS load balancing seems to be failing-over every 60" to multiple set of IP addresses and due to the frequency of the fail-over, it can occur while the test module yast_dns_server performs the DNS resolution check. It turns out that the failure is reproducible in local workstations, so this doesn't have to do with OSD networking. Changing the domain for the test to one with smaller interval of round robin DNS could be declawing.

PR: https://github.com/os-autoinst/os-autoinst-distri-opensuse/pull/11991