followup, re: dns cache corruption
Paul A Vixie
paul at vix.com
Fri Jul 2 17:07:35 UTC 1999
folks who wanted to know how to test whether their server is corrupt:
dig www.networksolutions.com a @204.152.187.11 | grep 128.9.160.28
(204.152.187.11 is my local caching server, which isn't corrupt, dammit.)
if the above command produces an A RR as output, your server is corrupt.
folks who wanted to know how to dump their cache and look for this data:
su
ndc dumpdb
awk '/^\$ORIGIN/ { o=$2 } /128.9.160.28/ {print o;print}' \
/var/named/named_dump.db
(this assumes that you're using sh or csh, and that your named.conf's
"directory" option is set to /var/named as mine is.) if the above command
shows an origin other than icann.org, or shows more than one origin, you
have caught something that i would like to see in my inbox -- and thanks!
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