[mythtv-users] Ananova blocking IPs? SOLVED :)

Tom Panning tpanning at vt.edu
Mon Jul 21 19:37:33 EDT 2003


On Monday July 21 2003 6:18 pm, Tupshin Harper wrote:
> Andrew Ingram wrote:
> >Tupshin (and Shawn),
> >
> >you guys are briliant!!! How on earth you sussed that one out!!! Just as
> >well I kept my boot floppy kernel that came with Debian. I did switch to
> >2.4.21 last Friday which explains this. I changed the value in /proc to
> >0 and it works :) Could view the website, and mythfilldatabase worked.
> >When I was trying other kernels beforehand, I was using ping to test
> >them, which doesn't seem to work for anyone, hence me thinking it wasn't
> >kernel related.
> >
> >Anyway, it's working again and I'm very happy. Thank you so much to
> >everyone who emailed about this (both on and off list). I really
> >appreciate all your help.
> >
> >Now all I need to do is find out where ECN lives in the kernel
> >menuconfig and switch the damn thing off for good!
> >
> >Thanks,
> >Andrew
>
> You're welcome. It's the kind of thing where you have to have been
> bitten by it yourself in order to readily identify the problem. About a
> year ago, I was bouncing mail to a couple sites, and eventually I
> learned about ECN. Actually, ECN is a good thing, though disabling it is
> justifiable if you never want to diagnose this problem again.
>
> In the kernel config, look in Networking Options->IP: TCP Explicit
> Congestion Notfication. It's also "CONFIG_INET_ECN=y" in your .config,
> so disabling it in either place will help. You could also wrap the
> script that contacts ananova in call to disable and re-enable ecn if you
> wanted to leave it in the kernel.

Couldn't he also "echo 0 > /proc/sys/net/ipv4/tcp_ecn" somewhere in his 
network scripts? Granted, recompiling it out of the kernel would make sure it 
stayed off, but I've gotten used to looking for solutions that don't require 
rebooting, and particularly not recompiling the kernel.

Tom


More information about the mythtv-users mailing list