Description of problem: Openssh refuses incoming connections and returns errors in the logs: Nasty PTR record "perihelion.int.jonmasters.org" is set up for 192.168.1.3, ignoring Version-Release number of selected component (if applicable): 4.3p2 How reproducible: Very. Steps to Reproduce: 1. ssh into box 2. it fails 3. Actual results: Cannot connect via ssh Expected results: Can connect to box Additional info: Tomas says it might be a problem glibc with a change in sematics to getaddrinfo.
Setting "UseDNS no" in sshd_config works around the problem temporarily.
Created attachment 128294 [details] Testcase Here is the testcase.
So this is definitely a bug in glibc. At least it shouldn't segfault and I think the semantics shouldn't change either.
*** This bug has been marked as a duplicate of 190002 ***