On 11/25/09 05:44, Divakar Pratap Singh P wrote:
Hi,
I am using S olaris (5.10 Sparc as well as i386 ) server to run an
application (written in C language) which uses B ind library client
implementation (available on Solaris box by default, version 4.9.4) .
On processing consecutive lookup requests using the function
res_nsearch , many of the initial requests fail, and after some time,
it starts resolving the requests .
Error code returned is either 1 or 2, but after some time it starts
working fine with eror code 0.
Nslookup command works perfectly fine, resolving all valid domains
correctly.
We have nis service also configured on the servers. Could that be an
issue here ?
Because its calling res_nsearch() directly NIS shouldn't be an issue,
though the NIS domainname would be used - set by res_ninit() - if one is
not provided in resolv.conf(4).
You should find setting environment variable RES_OPTIONS=debug useful in
seeing what the resolver is doing.
For further help please provide resolv.conf, output from command when
RES_OPTIONS=debug is set and preferably the C code.
Stacey Marshall.
Sun Microsystems.
Cumulative log of replies from res_nsearch ( for domain “ google.com ”
) :
-----------------------------------------------------
function ret val:
1
Error Msg
DNS lookup failed: Response is 'No address associated with name'.
Resolved IP:
function ret val:
1
Error Msg
DNS lookup failed: Response is 'No address associated with name'.
Resolved IP:
function ret val:
1
Error Msg
DNS lookup failed: Response is 'No address associated with name'.
Resolved IP:
function ret val:
1
Error Msg
DNS lookup failed: Response is 'No address associated with name'.
Resolved IP:
function ret val:
1
Error Msg
DNS lookup failed: Response is 'No address associated with name'.
Resolved IP:
function ret val:
0
Error Msg
Resolved IP:
74.125.67.100
function ret val:
0
Error Msg
Resolved IP:
74.125.53.100
function ret val:
0
Error Msg
Resolved IP:
74.125.45.100
function ret val:
0
Error Msg
Resolved IP:
74.125.67.100
function ret val:
0
Error Msg
Resolved IP:
74.125.53.100
function ret val:
0
Error Msg
Resolved IP:
74.125.45.100
function ret val:
0
Error Msg
Resolved IP:
74.125.67.100
function ret val:
0
Error Msg
Resolved IP:
74.125.53.100
-----------------------------------------------------
Thanks in anticipation,
Divakar.
------------------------------------------------------------------------
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