[Serusers] When is a DNS lookup performed?

Jamin W. Collins jcollins at asgardsrealm.net
Thu Jun 26 20:22:26 CEST 2003


When does SER perform DNS lookups?  Is it a matter of how the entry is
made in the ser.cfg?  I ask because one of our customers changed their
DNS servers and the SER proxy was not updated.  In the ser.cfg all
routing is done by IP (or I had thought it was).  However, the site
started experiencing some very odd call drops and after updating the
resolv.conf on the proxy server with the proper DNS servers (one of them
had changed) everything was fine.

Should IP address entries be quoted or non-quoted?  Does the presence of
the quotes cause a DNS lookup even though the item in them is purely
numeric (i.e. "162.128.33.54").  Is there a way to avoid the DNS
lookups?

-- 
Jamin W. Collins

Linux is not The Answer. Yes is the answer. Linux is The Question. - Neo



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