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network services may be slow (sendmail, CUPS etc) because default nameserver for the router always takes long time to resolve. To overcome this problem you have to load caching-nameserver, so does not have to do resolution every time.

yum install caching-nameserver

in system-config-network change DNS to 127.0.0.1

make sure to restart named:

service named restart

chkconfig named on

Just in case restart slow services (eg sendmail & cups)

Installing_caching-nameserver (last edited 2013-09-18 06:09:34 by localhost)