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Submitted by falko (Contact Author) (Forums) on Tue, 2008-05-20 17:21. ::

To install amavisd-new, spamassassin and

c lamav, run the following c ommand:

apt-get install amavisd-new spamassassin clamavclamav-daemon zoo unzip bzip2 unzoo libnet-ph-perllibnet-snpp-perl libnet-telnet-perl nomarch lzoppax

A fterwards we must configure amavisd- new. The

configuration is split up in va rious files which res ide

in the /etc/amavis/conf.ddirectory. Take a look at

eac h of them to become familiar with the

configuration. Mos t settings are fine, however we must modify three files:

First we must enable ClamAV and SpamAs sas sin in /etc/amavis/conf.d/15-content_filter_mode by

uncommenting the @bypass_virus_checks_maps and the @bypass_spam_checks_maps lines:

vi /etc/amavis/conf.d/15-content_filter_mode

The file should look like this:

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use strict;

# You can modify this file to re-enable SPAM checking# and to re-enable antivirus checking.

## Default antivirus checking mode# Uncomment the two lines below to enable it back#

@bypass_virus_checks_maps = (\%bypass_virus_checks, \@bypass_virus_checks_acl, \

A nd then you should take a look at the spam settings and the actions for spam-/virus-mails in

/etc/amavis/conf.d/20-debian_defaults. There's no need to change anything if the default settings

are ok for you. The file c ontains many explanations so there's no need to explain the settings here:

vi /etc/amavis/conf.d/20-debian_defaults

[...]$QUARANTINEDIR = "$MYHOME/virusmails";$quarantine_subdir_levels = 1; # enable quarantine dir

$log_recip_templ = undef; # disable by-recipient le$DO_SYSLOG = 1; # log via syslogd (prefer$syslog_ident = 'amavis'; # syslog ident tag, prepe$syslog_facility = 'mail';$syslog_priority = 'debug'; # switch to info to drop

$enable_db = 1; # enable use of BerkeleyD$enable_global_cache = 1; # enable use of libdb-bas

$inet_socket_port = 10024; # default listening socke

Finally, edit /etc/amavis/conf.d/50-userand add the line $pax='pax'; in the middle:

vi /etc/amavis/conf.d/50-user


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use strict;

## Place your configuration directives here. They will# earlier files.## See /usr/share/doc/amavisd-new/ for documentation an# the directives you can use in this file#

$pax='pax';

#------------ Do not modify anything below this line -1; # ensure a defined return

A fterwards, run these commands to add the clamavuser to the amavis group and to res tart

amavisd-new and ClamAV :

adduser clamav amavis/etc/init.d/amavis restart/etc/init.d/clamav-daemon restart/etc/init.d/clamav-freshclam restart

Now we have to c onfigure P ostfix to pipe incoming email through amavis d-new:

postconf -e 'content_filter = amavis:[127.0.0.1]:10024'postconf -e 'receive_override_options = no_address_mappings'

A fterwards append the following lines to /etc/postfix/master.cf:

vi /etc/postfix/master.cf


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[...]amavis unix - - - - 2 smtp

-o smtp_data_done_timeout=1200-o smtp_send_xforward_command=yes

127.0.0.1:10025 inet n - - - - smtpd-o content_filter=-o local_recipient_maps=-o relay_recipient_maps=-o smtpd_restriction_classes=-o smtpd_client_restrictions=-o smtpd_helo_restrictions=-o smtpd_sender_restrictions=-o smtpd_recipient_restrictions=permit_mynetwo

Then restart P ostfix:

/etc/init.d/postfix restart

Now run

netstat -tap

and you should see P ostfix (master) listening on port 25 (smtp) and 1002 5, and amavisd-new on

port 100 24 :

root@server1:/etc/postfix# netstat -tap

Active Internet connections (servers and established)

Proto Recv-Q Send-Q Local Address Foreign Address State PID/Program name

tcp 0 0 localhost.localdo:10024 *:* LISTEN 15645/amavisd (mast

tcp 0 0 localhost.localdo:10025 *:* LISTEN 16677/master

tcp 0 0 localhost.localdo:mysql *:* LISTEN 6177/mysqld

tcp 0 0 *:www *:* LISTEN 5367/apache2

tcp 0 0 *:smtp *:* LISTEN 16677/master

tcp6 0 0 [::]:imaps [::]:* LISTEN 14020/couriertcpd

tcp6 0 0 [::]:pop3s [::]:* LISTEN 14088/couriertcpd

tcp6 0 0 [::]:pop3 [::]:* LISTEN 14051/couriertcpd

tcp6 0 0 [::]:imap2 [::]:* LISTEN 13983/couriertcpd

tcp6 0 0 [::]:ssh [::]:* LISTEN 4006/sshd

tcp6 0 52 server1.example.com:ssh 192.168.0.210%8191:3340 ESTABLISHED 4059/0

root@server1:/etc/postfix#

Razor, P yzor and DC C are spamfilters that use a collaborative filtering network. To install Razor

and P yzor, run

apt-get install razor pyzor


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DC C isn't available in the Ubuntu 8.04 repositories, so we install it as follows:

cd /tmp

wget http://launchpadlibrarian.net/11564361/dcc-server_1.3.42-5_i386.debwget http://launchpadlibrarian.net/11564359/dcc-common_1.3.42-5_i386.debdpkg -i dcc-common_1.3.42-5_i386.debdpkg -i dcc-server_1.3.42-5_i386.deb

Now we have to tell SpamA ssas sin to use thes e three programs. Edit /etc/spamassassin/local.cf

and add the following lines to it:

vi /etc/spamassassin/local.cf

[...]

#dccuse_dcc 1dcc_path /usr/bin/dccproc

#pyzoruse_pyzor 1pyzor_path /usr/bin/pyzor

#razoruse_razor2 1razor_config /etc/razor/razor-agent.conf

#bayes

Then we must enable the DC C plugin in SpamAs sas sin. Open /etc/spamassassin/v310.pre and

uncomment the loadplugin Mail::SpamAssassin::Plugin::DCCline:

vi /etc/spamassassin/v310.pre

[...]# DCC - perform DCC message checks.#

# DCC is disabled here because it is not open source.# license for more details.#loadplugin Mail::SpamAssassin::Plugin::DCC[...]

You can c heck your SpamA ss ass in configuration by executing:


9 of 13 11/30/09 12:04


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8.04 LTS) - Page 2 8.04 LTS) - Page 4

[...]my $POSTFIX_CF = "/etc/postfix/main.cf";

my $MAILPROG = "/usr/sbin/sendmail -t";my $WARNPERCENT = 80;my @POSTMASTERS = ('[email protected]');my $CONAME = 'My Company';my $COADDR = '[email protected]';my $SUADDR = '[email protected]';my $MAIL_REPORT = 1;my $MAIL_WARNING = 1;[...]

print "Subject: WARNING: Your mailbox is $l[...]

print "Your mailbox: $luser is $lusers{$lus

Run

crontab -e

to c reate a c ron job for that sc ript:

0 0 * * * /usr/local/sbin/quota_notify &> /dev/null

This page is licens ed under a C reative Commons License.

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V irtual Us ers A nd Domains With Postfix, Courier, MySQ L A nd SquirrelMail (Mandriva 20 08 .1)

V irtual Users A nd Domains With Postfix, C ourier And MySQ L (CentOS 5.1)

V irtual Users A nd Domains With Pos tfix, C ourier And MySQ L (Ubuntu 7.10)

V irtual Users A nd Domains With Pos tfix, C ourier And MySQ L (Fedora 8)

Please do not use the comment funct ion to ask for help! I f you need help, please use ourforum.

Comments wil l be publ is hed after adminis trator approval.

Connection refused when sending mailsSubmitted by Fred (not registered) on Wed, 2009-10-28 10:58.

I got an error when I wanted to send mail, even to an internal account.

I checked the conf again and again until I discvered that amavis was not activated (with netstat -tap).

When I tried to launch amavis I got the following error :

Starting amavisd: The value of variable $myhostname is "postfix", but should have been

a fully qualified domain name; perhaps uname(3) did not provide such.

You must explicitly assign a FQDN of this host to variable $myhostname

in /etc/amavis/conf.d/05-node_id, or fix what uname(3) provides as a host's

network name!

I checked my hostname and realized it was not correctly configured.

I jut set it to mail.mydomain.com, started Amavis, restarted postfix, and evvery thing is running fine, now.

reply | view as pdf

64bit DCCSubmitted by Eric Thelin (not registered) on Mon, 2009-03-02 05:05.

For a 64bit server use these urls in step 10 to get DCC instead of the ones listed.

http://launchpadlibrarian.net/11565554/dcc-server_1.3.42-5_amd64.deb

http://launchpadlibrarian.net/11565552/dcc-common_1.3.42-5_amd64.deb

reply | view as pdf

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