Support wrote:
>Hi,
>
>I have an server (Pentium III 750 MHz, 500 MB RAM, 50 Gigabyte Disk)
>running with vpopmail, qmail, vchkpw and fastforward on SUSE 6.4.
>There are 90.000 virtual users on that machine with nearly the same
>amount of aliases in the fastforward.cdb.
>
>But there is one problem. I offer pop3 and smtp service on
>this machine and have aproximatly 1500 till 2000 connection
>at the same time on the machine (netstat -a). 63 percent are pop3
>connections and 32 percent smtp. Rest not important.
>And I can see only 120 till 130 established connections of those
>1500-2000 connections at the same time. The rest (80 %) is in
>status SYN_RECV. CPU-load is around 40 percent.
Are you running everything from inetd or tcpserver? I have 200,000+ mail users on my
machine, but have to limit my incoming SMTP to 550 connections using tcpserver's -c550
option because of bandwidth problems.
Just something you may want to consider.
Brian
