[Users] About many connections in SMTP

[Kirill Korotaev]

plz check that you do not hit any UBC limits via
/proc/user_beancounters

Thanks,
Kirill

José David Bravo Álvarez wrote:
> Sorry if this mail don't concerns to OVZ, but I need to discard 
> possibilities
> 
> -bash-3.00# uname -a
> Linux exodo.colombiahosting.com.co 2.6.8-022stab078.14-smp #1 SMP Wed 
> Jul 19 16:                13:15 MSD 2006 i686 i686 i386 GNU/Linux
> 
> Im using Exim 4.60, that comes with DirectAdmin. I have 
> smtp_accept_max in 130 and sometimes Im getting this error: "421 Too 
> many concurrent SMTP connections; please try again later."
> 
> I used exiwhat and netstat and I determine that yahoo servers have many 
> incoming connections to my server. Triying to determine the problem I 
> used an sniffer, its an example:
> 
> SNIFFER OUTOUT
> 250 OK
> 250 Accepted
> 354 Enter message, ending with "." on a line by itself
> 250 OK id=1HlpNN-0000Rm-7w
> QUIT
> 221 exodo.colombiahosting.com.co closing connection
> 14     FIN-WAIT-1     209.191.125.35:29978 > 66.128.49.69:smtp
> 14     TIME-WAIT      209.191.125.35:29978 > 66.128.49.69:smtp
> 14     RESET          209.191.125.35:29978 > 66.128.49.69:smtp
> 
> 
> -bash-3.00#  netstat -an | grep 209.191.125.35
> tcp        0      0 66.128.49.69:25             
> 209.191.125.35:27139        ESTABLISHED
> tcp        0      0 66.128.49.69:25             
> 209.191.125.35:39853        ESTABLISHED
> 
> 
> -bash-3.00# exiwhat | grep 209.191.125.35
> 7549 handling incoming connection from web38404.mail.mud.yahoo.com 
> [209.191.125.35] id=1Hlow6-0001xl-It
> 23792 handling incoming connection from web38404.mail.mud.yahoo.com 
> [209.191.125.35] id=1HloZ6-0006Bk-UK
> 
> 
> and 20 minutes later I do netstat again and I get the same info. Then 
> the connections never close
> -bash-3.00# netstat -an | grep 209.191.125.35
> tcp        0      0 66.128.49.69:25             
> 209.191.125.35:27139        ESTABLISHED
> tcp        0      0 66.128.49.69:25             
> 209.191.125.35:39853        ESTABLISHED
> 
> I upgraded to exim 4.66 and I get the same problem.
> 
> 
> I'll really thanks if you can help me!
> 
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