Public bug reported: Some changes made in kernel-2.6.17 makes it behave really strange for many users regarding their network connection. It's related to window_scaling and you can find more information here:
http://kerneltrap.org/node/6723 The result is that MANY users won't be able to access most sites on the net, including the Ubuntu repositories, unless they disable tcp_window_scaling. This can be done with the command "echo 0 > /proc/sys/net/ipv4/tcp_window_scaling" as root, or by adding the line "net.ipv4.tcp_window_scaling = 0" to /etc/sysctl.conf Ok, here the problem: I'm one of those users (and in Spain there will be a whole lot of them) who can't access most sites. So when with Ubuntu Edgy (as live-cd) it happens that when I try to use that command with sudo I get permission denied. I can edit /etc/sysctl.conf though, but I'd need to reboot the computer which is useless as a live CD. So when I try to install it, it freezes while scanning the mirror to configure apt and stays there forever (because it can't access the repository). Conclusion: I can't use it as live-cd and I can't install it either to solve the problem. Suggestions: 1 - Disable tcp_window_scaling by default in /etc/sysctl.conf. This is the most user-friendly but most technically intrusive one. 2- Allow users to run the command "sudo echo 0 > /proc/sys/net/ipv4/tcp_window_scaling" without getting permission denied. This is not very user friendly, but it should work. 3 - Set some tipe of time-out so that if during install it can't access the repository it will continue with the installation. Then the user can solve the problem after installing the system by adding that line to /etc/sysctl.conf. Not really user-friendly, but it could be a good option. ** Affects: Ubuntu Importance: Untriaged Status: Unconfirmed -- Network problem since kernel-2.6.17 https://launchpad.net/bugs/59331 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
