Re: [exim] smtp_accept_max_per_host

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Autor: Oliver von Bueren
Fecha:  
A: exim-users
Asunto: Re: [exim] smtp_accept_max_per_host
Hi Randy

Randy Bush wrote:
>     smtp_accept_max_per_host = 4
> yet
>     netstat -nf inet \
>     |  awk '$4 ~ /\.25$/ {split($5, a, "[.]"); print 
> a[1]"."a[2]"."a[3]"."a[4]}' \
>     | sort | uniq -c | sort -nr | awk '$1 > 1' | head -4
> shows
>   19 78.3.64.138
>   14 125.25.31.62
>   10 58.186.134.147
>   10 123.19.248.195
> so clearly i am not understanding something.  clue bat, please.

>

I assume you run exim as a daemon and not from inetd, otherwise I think
this does not work.
Further more, do you see the log file showing the rejected connections like

2007-11-10 02:06:30 Connection from [xx.xx.xx.xx] refused: too many
connections from that IP address

If yes, you probably just count not only the connections in ESTABLISHED
state but also in TIME_WAIT, FIN_WAIT_2, etc...

Try this: netstat -nf inet $* | grep -v " $" | grep -v "LISTEN$"
to display all connections except the listening ones, about the quick
check of what is on inbound wise.

Oliver

PS: Sorry if some get this message twice, I didn't get it back at all
and suspect my first try did not reach the list (incl. archive) because
of a wrong sender address on my part.