General: November 2002 Archives
If spamassassin needs to be implemeted system-wide, Install spamassassin, and edit /etc/procmailrc and add the following:
DROPPRIVS=yes
:0fw
* < 256000
| spamc
The mails will be tagged for spam and would be sent to the users' mailbox. For this, spamd needs to be running as daemon. Use this script to start spamd when the system starts.
Switching Offices is a good article on moving to OpenOffice
Note: This document is only for per-user configuration of spamassassin
Configuration: RedHat Linux 7.2, Sendmail 8.12.6, procmail 3.21, SpamAssassin 2.43 ( and you will have to be connected to the internet)
Installing the prerequisites:
Spam assassin depends on other perl modules. The complete SpamAssassin package along with its dependent modules can be installed using CPAN:
as root:
# perl -MCPAN -e shell
install Mail::SpamAssassin
quit
If CPAN has been configured properly, this should be a successfull install. SpamAssassin is now installed in /usr/bin/SpamAssassin.
We would be using procmail to filter messages. Due to sendmail's security feature, we would have to create a symlink to procmail in the director /usr/adm/sm.bin
# cd /usr/adm/sm.bin
# ln -s /usr/bin/procmail ./procmail
( sendmail executes the programs, only when they are symlinked to, in /usr/admin/sm.bin)
Configuring SpamAssassin ( for user, say, ram)
1) Make sure that your home root directory ( /home) and your home directory ( /home/ram) is not group writable.
2) create a file in your home directory, ~ram/.forward, and add the follwing to it:
"|/usr/bin/procmail -f- #ram"
3) now, this ~ram/.forward file should have permission of 700
4) create a file called spams in your home directory
5) create file, ~ram/.procmailrc with the following content:
:0fw
| /usr/bin/spamassassin
:0
* ^^rom[ ]
{
LOG="*** Dropped F off From_ header! Fixing up. "
:0 fhw
| sed -e '1s/^/F/'
}
( Here, we are processing the incoming mail using SpamAssassin, and if the mail is marked by SpamAssassin as a spam, we move it to a file called spams. The third rule is a workaround for a bug in procmail 3.21)
6) Send a test mail to yourself. you should now see the following in your mail header:
X-Spam-Status: No, hits=2.6 required=5.0
tests=FROM_AND_TO_SAME_1,NO_REAL_NAME,SPAM_PHRASE_00_01
version=2.43
X-Spam-Level: **
X-UIDL: 5,@!!fXk!!`Cm"!6?l"!M
7) You can now configure your mail client to parse the headers and check for X-spam-Status = Yes, throw into a seperate folder , or use procmail to do it, by adding:
:0:
* ^X-Spam-Status: Yes
spams
as your second rule.
I just received this very good book on Qmail. The Qmail Handbook explains everything that is need for a system administrator. (Thanks to Mark for sending me the book)
Here is a good doc on installing Oracle 9i on Red Hat Linux
