SUMMARY: DNS problem suddenly appears

From: Roddy McColl (
Date: Thu Jan 18 1996 - 10:07:49 CST

Thanks to the following for their accurate assessment of my nslookup
problem. (Phil Meyer)
Barry Margolin <>
Dave Mitchell <>
Matus Uhlar <> (George Ross)
"Andy Gay (3272)" <>

Turns out that the campus DNS had updated to bind 4.9.3 which no
longer supports SunOS 4.1/4.1.1 nslookup which requires a reverse
query operation. Compiling the version which comes with the bind-4.9.3
distribution got me a new nslookup quickly.

No one was able to offer a reason for ping/ftp/telnet no longer
working to hosts off the NIS map i.e. requiring DNS access. I found
that installing the libc jumbo patch made the NIS/DNS combo work again
as it did for five years prior to last week. No idea why. Any takers?

         Roddy McColl PhD
         Assistant Professor of Radiology
         Radiology Imaging Center
         UT Southwestern Medical Center at Dallas
         5323 Harry Hines Blvd
         Dallas TX 75235-9058
         (214) 648-2910
         (214) 648-4538 FAX

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