[CLUE-Tech] Mail Issues?

[David Anselmi]

Dave Price wrote:
> I am having a proble with mail timeouts delivering mail to a specific
> domain (oreilly.com) ... I have been asked:
> 
> 
> 	One thought: does you kernel have ECN turned on? Our routers do not 
> 	support ECN at this time. We're waiting for it to be a full IETF 
> 	standard before we spend time supporting it. (We're really short 
> 	handed.)
> 
> 	
> Where would I check this?

Look in the config file for your kernel (on debian that's in /boot, if 
you built your own it should be in /usr/src/linux).  There are some 
CONFIG_INET_ECN entries.

You can also look in /proc/sys/net/ipv4/tcp_ecn.

Dave