Thanks for your answers !
> I have had a Slackware box (P-200 64MB ram) serving ~200 users with
> ~30K-40K messages per day running for two years with no problems (useing
> sendmail and cyrus) I just recently had to upgrade the memory as it was
> starting to swap a bit.
>
First of all I said ~100 Domain not user.
All domains have ~100 User.
It means that I have ~ 100.000 User.
But as you know most of users get or send mail per a week, so we can
think that as 10.000 users sends or receive email once time per a day.
Most of mails consist of ~10 Kb msg. so just think traffic.
> As for the flavor of linux, pick one that you are comfortable with. My
> personal prefrence is slackware, but if you know redhat you are better
> using it then learning a different distro.
>
Skill level is not important for us.
Now we think to install RedHat 6.1 or Slackware 7.0.
Of course RedHat and Slackware are enough secure but we have to think
more about security also.
So what about OpenBSD or FreeBSD ?
> >
> > RedHat has RPM - an utility used to install programs which
> > can _verify_ if installation is correct - IMO it will help
> > in case some hacker modifies a program to access your host.
> > Maybe Debian has similar one, too (anyone knows?). If you
> > use Slackware, you can only use MD5SUM manually...
> >
This is funny : )
> > >Which hardware . . . ?
> > > 486, Pentium (II, III), Alpha etc. ?
> > > 32 Mb, 64 Mb, 128 Mb . . . RAM ?
> > > 4 Gb, 8 Gb, 20 Gb, 36 Gb . . . HDD ?
> >
> > How many connections simultaneously? I suggest 1MB+ RAM
> > per connection. HDD - at least 10MB in /var per mailbox.
> > -
As I thought a Pentium II 400 with 128 Mb Ram seems OK.
We may need a RAID system incase of any risk.
For POP server I am still looking for a good server.
And I want to ask another question.
I think you know Cobalt Systems.
What they are using especially for software ?
Thanks,
Oguz Demirkapi
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