[CentOS] Planning Mail Server (with low resources)

[Craig White]

On Mon, 2005-12-05 at 21:26 -0500, Alain Reguera wrote:
> Hello,
> 
> I'm planning the installation of the school's Mail Server. This is the
> first time I get in administration. I've been reading about postfix,
> cyrus  and the first page in the guide of HughesJR.com[2] about
> installing postfix-cyrus, but due my low hardware resources, I ask for
> suggestions to see If what I need can be done (and|or) stable.
> 
> Hardware:
> Pentium III 1.4Ghz
> 256 RAM
> 40 GB HD-IDE
> 
> Soft:
> CentOS 4.2
> Postfix
> Cyrus-IMAPd
> MailScanner
> Spanassassin
> 
> Partitioning(in MB)[1]:
> /                                   1.000
> /boot/                            100
> /home/                          15.000
> /swap/                           512
> /tmp/                             500
> /usr/                              1.000
> /var/                              5.000
> /var/log/                         2.000
> /var/spool/mail/               14.800
> 
> The server will serve around 2000 students, but only 80(maybe 100)
> concurrent at time. I would like to make a very basic installation,
> 'cause as you can see, I am with a very low hardware resources. This
> host will be mail dedicated.
> 
> In the near future the hard would be upgraded(maybe a nu computer).
> Now, I need something to show in a working environment.
> 
> I'll appreciate any suggestion.
> 
> I've never been involved in this. I used to program with php, but now,
> it has been delegated :| to me (chosen between other tasks).
> 
> Some orientation (and|or) readings will be great too, even while, I'll
> continue reading about partitioning[3] (think my first step).
> 
> thanks in advanced for your time.
> 
> [1] http://www.linuxsa.org.au/tips/disk-partitioning.html
> [2] http://www.hughesjr.com/content/view/9/30/Guides
> [3] http://www.tldp.org/HOWTO/Partition/intro.html
----
looks good but /usr is way too small. /usr is gonna need probably more
like 3.5 Gigabytes

Suggest you consider having separate partitions for 
/boot 
/home
/tmp
/var/spool/imap # cyrus would default to this
swap
and combine the rest in / which allows fluctuation for /usr and /var
usage - perhaps maybe 8 gigabytes.

Craig