DNS query when using IP address

Matthew Thompson matthewt at fairplay.co.uk
Tue Feb 6 12:45:57 UTC 2001


When you ping a reverse lookup is performed - man ping provides the option:

 -n      Numeric output only.  No attempt will be made to lookup symbolic
         names for host addresses.

Which should do what you want - although I'd worry if the occasional reverse
lookup from Ping was such a problem.

-----Original Message-----
From: Hesmert Albrecht ICM N MC MI SI 1
[mailto:Albrecht.Hesmert at icn.siemens.de]
Sent: 06 February 2001 12:19
To: 'bind-users at isc.org'
Subject: DNS query when using IP address



when I do a ping direclty to an IP address in my network,
I see that a DNS query is sent to the DNS server.
Why?
How can I switch this off?

The network is pure RedHat 6.2
The option 'DNS required for normal operation' is switched off in linuxconf.

Thanks for any hints!

Albrecht


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