[Mailman-Users] Restrict Mass Subscription

Kai Schaetzl maillists at conactive.com
Sat Feb 12 16:31:28 CET 2005

 wrote on Fri, 11 Feb 2005 20:08:34 -0800 (PST):

> The easiest way to demonstrate is turn on ECN yourself on a linux-2.4 
>  or linux-2.6 host. 
> Just "echo 1 > /proc/sys/net/ipv4/tcp_ecn" as root.... 
> Then you will find list.org doesn't work, until you... 
>  "echo 0 > /proc/sys/net/ipv4/tcp_ecn" as root....

I don't know what the tcp_ecn stuff does, but I can repro that easily. 
Just followed your steps and then telnet www.list.org 25. No go. At the 
same time I could still reach other servers.


Kai Schätzl, Berlin, Germany
Get your web at Conactive Internet Services: http://www.conactive.com
IE-Center: http://ie5.de & http://msie.winware.org

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