Re: FC2 Test1 Help!!!

[Alexander Dalloz <alexander dalloz uni-bielefeld de>]

Am So, den 07.03.2004 schrieb Gavin Henry um 21:39:

> Hi all,
> 
> I have just finished upgrading via apt (http://fedoranews.org/ghenry/apt-fc2/)

Gavin,

I much appreciate every documentation and problem discussion. But please
would you mind to discuss FC2 test X problems on the fedora-test-list?
It helps separating issues with stable Fedora from those with testing
versions.

> Will be finishing that off, once I get these little gotchas documented.
> 
> Well, my external network connection is gone. I can ping and resolve domains,
> but no traffic will come in. I can't browse the net, or use xchat etc.
> 
> Very strange.
> 
> The internal lan works as I can send to my mailserver, as you can tell.
> 
> What gives?
> 
> 'service network restart' is fine.
> 'ping www.oreilly.com' works,
> /etc/resolv.conf is fine
> route -n is fine.
> /etc/hosts also.
> 
> Anyone had similar?
> 
> Pointing my browser to 127.0.0.1 to my webserver does work though.
> 
> 
> Could anyone see if they can hit my domains:
> 
> http://www.suretecsystems.com
> http://www.magicfx.co.uk

Gavin, I am very sure it is the know thing with ECN, which is by default
active with the 2.6er Fedora kernels. Set

echo 0 > /proc/sys/net/ipv4/tcp_ecn

and i bet immediately all will work again. To set that fix just edit
/etc/sysctl.conf. To be clear, this is no fault by Linux/Fedora! this is
an issue with badly configured firewalls/routers.

As you asked, no, both domains are not reachable from here.

Alexander


-- 
Alexander Dalloz | Enger, Germany | GPG key 1024D/ED695653 1999-07-13
Fedora GNU/Linux Core 1 (Yarrow) on Athlon CPU kernel 2.4.22-1.2174.nptl
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                   [ Γνωθι σ'αυτον - gnothi seauton ]
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