The Perfect SpamSnake - Ubuntu Jaunty Jackalope - Page 3
13. Pyzor Configuration
Because pyzor doesn't work with python2.6 very well, the workaround is to install python2.5 alongside it and use it as the default.
Edit /usr/share/python/debian_defaults:
# the default python version default-version = python2.5
Now modify the /usr/bin/python symlink to point to python2.5 instead to python2.6
mv /usr/bin/python /usr/bin/python26
ln -s /usr/bin/python2.5 /usr/bin/python
Move pyzor:
mv /var/lib/python-support/python2.6/pyzor-* /var/lib/python-support/python2.5/
mv /var/lib/python-support/python2.6/pyzor* /var/lib/python-support/python2.5/pyzor/
We need to change some permissions on pyzor first:
chmod -R a+rX /usr/share/doc/pyzor /usr/bin/pyzor /usr/bin/pyzord
chmod -R a+rX /usr/share/python-support/pyzor
Here we supply the IP address of the Pyzor server to Pyzor. This will create the server's IP address in a servers file therein. Then it will test the connection. If you are behind a firewall, open port 24441/udp in and out to your server. While you're at it also open up 6277/udp for DCC, 2703/tcp for Razor and 783/tcp for SpamAssassin:
pyzor --homedir /var/lib/MailScanner discover
pyzor ping
14. Razor Configuration
Create the .razor configuration:
cd
rm /etc/razor/razor-agent.conf
mkdir /var/lib/MailScanner/.razor
razor-admin -home=/var/lib/MailScanner/.razor -create
razor-admin -home=/var/lib/MailScanner/.razor -discover
razor-admin -home=/var/lib/MailScanner/.razor -register
chown -R postfix:www-data /var/lib/MailScanner
chmod -R ug+rwx /var/lib/MailScanner
Make the following changes to /var/lib/MailScanner/.razor/razor-agent.conf:
debuglevel = 0 razorhome = /var/lib/MailScanner/.razor/
15. DCC Configuration
Install DCC from .deb source:
wget http://ppa.launchpad.net/jonasped/ppa/ubuntu/pool/main/d/dcc/dcc-server_1.3.103-0ubuntu1~ppa2~jaunty1_i386.deb
wget http://ppa.launchpad.net/jonasped/ppa/ubuntu/pool/main/d/dcc/dcc-common_1.3.103-0ubuntu1~ppa2~jaunty1_i386.deb
wget http://ppa.launchpad.net/jonasped/ppa/ubuntu/pool/main/d/dcc/dcc-client_1.3.103-0ubuntu1~ppa2~jaunty1_i386.deb
Install the packages:
dpkg -i dcc-common_1.3.103-0ubuntu1~ppa2~jaunty1_i386.deb
dpkg -i dcc-server_1.3.103-0ubuntu1~ppa2~jaunty1_i386.deb
dpkg -I dcc-client_1.3.103-0ubuntu1~ppa2~jaunty1_i386.deb
We are not running a DCC server, so we don't need to waste time checking ourselves.
Once the installation is done run:
cdcc "delete 127.0.0.1"
cdcc "delete 127.0.0.1 Greylist"
Test our installation with:
cdcc info
You should get 'requests ok' from the servers.
16. Configuring MailScanner and ClamAV
We need to make a directory for SpamAssassin in the spool and give postfix permissions to it, if you run sa-learn --force as root, bayes databese that is stored in these directories will change to root:root and spamassassin will error looking at the db. Just keep an eye on the mail.log and you'll remember to change the permissions back. Also disable the MailScanner default configs:
mkdir /var/spool/MailScanner/spamassassin
Backup your MailScanner.conf file:
cp /opt/MailScanner/etc/MailScanner.conf /opt/MailScanner/etc/MailScanner.conf.dist
vi /opt/MailScanner/etc/MailScanner.conf
Change the following parameters in MailScanner.conf:
%org-name% = ORGNAME %org-long-name% = ORGFULLNAME %web-site% = ORGWEBSITE Run As User = postfix Run As Group = www-data Incoming Work Group = clamav Incoming Work Permissions = 0640 Incoming Queue Dir = /var/spool/postfix/hold Outgoing Queue Dir = /var/spool/postfix/incoming MTA = postfix Virus Scanners = clamd Spam Subject Text = ***SPAM*** Send Notices = no Spam List = spamcop.net ZEN Required SpamAssassin Score = 6 High SpamAssassin Score = 10 Spam Actions = deliver High Scoring Spam Actions = delete Rebuild Bayes Every = 0 Wait During Bayes Rebuild = no SpamAssassin User State Dir = /var/spool/MailScanner/spamassassin Clamd Socket = /var/run/clamav/clamd.ctl Clamd Lock File = /var/run/clamav/clamd.pid Monitors for ClamAV Updates = /var/lib/clamav/*.cld /var/lib/clamav/*.cvd
The first 9 lines are basically required in order for everything to work, the rest are recommended.
16.1 header_checks
Let's go ahead and put this in main.cf. header_checks is required because it allows us to hold all incoming email in order for MailScanner to do its thing:
postconf -e "header_checks = regexp:/etc/postfix/header_checks"
Create /etc/postfix/header_checks and add the following:
/^Received:/ HOLD
Postmap it:
postmap /etc/postfix/header_checks
16.2 Fix to Disable Permission Checks on MailScanner Directories
Edit /etc/rc2.d/S20mailscanner to look like:
check_dir /var/spool/MailScanner ${user:-postfix} ${group:-www-data}
#check_dir /var/lib/MailScanner ${user:-mail} ${group:-mail}
#check_dir /var/run/MailScanner ${user:-mail} ${group:-mail}
#check_dir /var/lock/subsys/MailScanner ${user:-postfix} ${group:-www-data}
In the file /etc/default/mailscanner, make sure this parameter is at 1:
run_mailscanner=1
16.3 Create cron jobs to keep MailScanner updated:
37 5 * * * /opt/MailScanner/bin/update_phishing_sites 07 * * * * /opt/MailScanner/bin/update_bad_phishing_sites 42 * * * * /opt/MailScanner/bin/update_virus_scanners 3,23,43 * * * * /opt/MailScanner/bin/check_mailscanner
16.4 Start the system
check_mailscanner
/etc/init.d/postfix start
Check your logs for errors:
tail -f /var/log/mail.log
