I downloaded and installed the KDE version of Fedora 17.
Everything works great exept... browsing in Firefox (and any other browser) is slow as hell. Resolving a page takes about 10 to 20 seconds, which is far too slow for a normal use.
I am using Debian in dual boot, and here DNS resolving with exactly the same settings is as fast as to be expected (fraction of seconds). So - no hardware or general settings problem. This is really a Fedora 17 problem as far as I can see.
Now I did all the "standard" workarounds known to me, like:
Set network.dns.disable ipv6 to true in Firefox - no result
Turn off ipv6 in the network card settings - no result
Do the following:
echo -e "install ipv6 /bin/true\nblacklist ipv6" > /etc/modprobe.d/blacklist-ipv6.conf
service ip6tables stop
chkconfig ip6tables off
And then reboot
Still browsing (dns resolving) stays slow. I am out of ideas. Anyone has the same problems?
And secondly - another problem. I use the Midnight Commander (mc) a lot on my systems. I run this in the terminal (Konsole), but I notice it can take several seconds to start mc (typically about 10 to 15 seconds). I never had this slow start in any other Linux version. Normally mc should start instantly without any delay.. Very strange.
Now I think about it - Firefox also takes several seconds to just start up. Much slower than in Debian and Kubuntu.
Could this be related in some way?