Hello, Using SL 5.4 ( 2.6.18-194.32.1.el5 ) from my apartment results in very slow DNS lookups -- on the order of 30 seconds for each new page. I am pretty sure the problem is with DNS because it goes away if I use vpnc to tunnel to Fermilab. Google led me to the following workaround: add alias ipv6 off alias net-pf-10 off to /etc/modprobe.conf . This works, but the system now complains about some error with ipv6 tables when it boots. Is there a better way to fix this (without changing any router settings -- I don't have the password)? Thanks. -- Aram