[ale] Name resolutoin in the WM

Christopher Fowler cfowler at outpostsentinel.com
Fri Sep 29 08:17:14 EDT 2006


I've noticed something strange on FC5.  If I'm on a slow network will it
takes a little longer to resolve names then startup of new programs take
longer.  Just now I clicked on my xterm icon it takes 35 seconds for the
xterm to appear.  At home it immediate.  The difference is that at home
I use a caching name server.  Here I use comcast's name servers.  My
only guess it has something to do with the hostname of the laptop and
gnome trying to resolve that.  I can think of anything else it would be
resolving

Sure enough if I do a tcpdump the minute I click that icon it does this:

08:16:01.147187 IP 192.168.2.131.32789 > 192.168.10.1.domain:  17401+
AAAA? ze1250.linxdev.com. (36)
08:16:01.159054 IP 192.168.2.131.32790 > 192.168.2.1.domain:  57632+
PTR? 1.10.168.192.in-addr.arpa. (43)
08:16:06.145979 IP 192.168.2.131.32789 > 192.168.10.1.domain:  17401+
AAAA? ze1250.linxdev.com. (36)
08:16:06.158881 IP 192.168.2.131.32790 > 192.168.2.1.domain:  57632+
PTR? 1.10.168.192.in-addr.arpa. (43)
08:16:06.319485 IP 192.168.2.1.domain > 192.168.2.131.32790:  57632
NXDomain* 0/1/0 (120)





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