-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 On Monday 03 January 2005 07:52, Eric Niebler wrote: > I've been running RedHat/Fedora since RH6.2, and I've *never* seen a > problem like this. I just clean-installed Fedora Core 3, and HTTP is not > working. I can ping websites, but I can't get to them via HTTP. I can > FTP just fine. And the strangest thing is, once in a blue moon, I can > actually get through (slooowly) to a website via HTTP, so it's only > /mostly/ broken. ??!! > > This machine dual-boots with WinXP, and when it's running XP, it has no > problem getting to the internet via HTTP. So it's not the > cables/router/DSL modem or my ISP. Is this some strange overeager > firewall thing? How do I even begin diagnosing this problem? I think you'll find it is an issue to do with later kernels and default settings for either ECN or TCP Window Scaling having changed. Normally this is fine, but some people have a broken router between them and where they are going. If either echo 0 > /proc/sys/net/ipv4/tcp_window_scaling or echo 0 > /proc/sys/net/ipv4/tcp_ecn effect a magical cure then that was your problem: if so stick the cure in /etc/rc.local and away you go. - -Andy - -- http://www.addintelligence.co.uk -- we design custom hardware and software for your products -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.2.6 (GNU/Linux) iD8DBQFB2QT+jKeDCxMJCTIRAiSdAJ0fqW3IsvvgD+Jidg2wZJhkZ4N96gCfYGEi gsU5KXJ+H6mCbaZaQc9Wu/w= =rw6w -----END PGP SIGNATURE-----