jamouneau wrote on 2007-11-02
sudo gedit /etc/sysctl.conf
change the following parameters to 0: (they are already in the list and you
only need to change from "1" to "0")
net.ipv4.tcp_sack = 0
net.ipv4.tcp_window_scaling = 0
save file, reboot
And Ralph Corderoy rewrote this later to this simple command :
sudo sysctl -w net.ipv4.tcp_{window_scaling,timestamps,sack}=0
Thank both, this solved my problem described earlier in this tread
immediately, on both Gutsy and Hardy Alpha2 and even without reboot.
Clean installations and no fiddling with DNS nor IPv6. I'm now back on
the high Internet performance i used to have with Edgy (NetworkMananger
didn't work for me in Feisty, so this was a no go)
Can't help wondering what this excactly does ?. But if is it a bug in
the default configuration of a out of the box installation of K/Ubuntu,
I certainly hope this will be corrected before the final release of
Hardy.....
BTW Testet on wireless access
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Internet extremely slow in Gutsy after upgrade
https://bugs.launchpad.net/bugs/155393
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