Ubuntu 11.04
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Run with Clamav
2011/05/04
[1] Install Clamav first and Configure to run Postfix with Clamav to scan virus timely.
root@mail:~#
aptitude -y install clamav-daemon amavisd-new spamassassin


root@mail:~#
vi /etc/default/spamassassin


# line 8: turn '1' if you use spam filter

ENABLED=
1


root@mail:~#
cp /usr/share/doc/amavisd-new/examples/amavisd.conf-sample.gz /etc/amavis/

root@mail:~#
gunzip /etc/amavis/amavisd.conf-sample.gz

root@mail:~#
mv /etc/amavis/amavisd.conf-sample /etc/amavis/amavisd.conf

root@mail:~#
vi /etc/amavis/amavisd.conf


# line 66: uncomment

$MYHOME = '/var/lib/amavis';

# line 71: specify domain name

$mydomain = '
srv.world
';

# line 73: uncomment and specify hostname

$myhostname = '
mail.srv.world
';

# line 77,78: change

$daemon_user = '
amavis
';
$daemon_group = '
amavis
';

# line 626: make it comment (not notify if virus would detect )

#
$virus_admin
= "virusalert\@$mydomain";


# line 1934: uncomment and add

['ClamAV-clamd',
  \&ask_daemon, ["CONTSCAN {}\n", "/var/run/clamav/clamd
.ctl
"],
  qr/\bOK$/m, qr/\bFOUND$/m,
  qr/^.*?: (?!Infected Archive)(.*) FOUND$/m ],

root@mail:~#
vi /etc/amavis/conf.d/15-content_filter_mode


# line 13: uncomment

@bypass_virus_checks_maps = (
  \%bypass_virus_checks, \@bypass_virus_checks_acl, \$bypass_virus_checks_re);

# line 24: uncomment ( if you use spam filter )

@bypass_spam_checks_maps = (
  \%bypass_spam_checks, \@bypass_spam_checks_acl, \$bypass_spam_checks_re);

root@mail:~#
vi /etc/postfix/main.cf


# add at the last line

content_filter=smtp-amavis:[127.0.0.1]:10024


root@mail:~#
vi /etc/postfix/master.cf


# add at the last line

smtp-amavis unix -       -       n      -     2 smtp
      -o smtp_data_done_timeout=1200
      -o smtp_send_xforward_command=yes
      -o disable_dns_lookups=yes
127.0.0.1:10025 inet n     -     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_mynetworks,reject
      -o mynetworks=127.0.0.0/8
      -o strict_rfc821_envelopes=yes
      -o smtpd_error_sleep_time=0
      -o smtpd_soft_error_limit=1001
      -o smtpd_hard_error_limit=1000


root@mail:~#
touch /etc/mailname

root@mail:~#
chmod -R 775 /var/lib/amavis/tmp

root@mail:~#
usermod -G amavis clamav

root@mail:~#
/etc/init.d/clamav-daemon restart

* Stopping ClamAV daemon clamd
  ...done.
* Starting ClamAV daemon clamd
  ...done.
root@mail:~#
/etc/init.d/spamassassin restart

Restarting SpamAssassin Mail Filter Daemon: spamd.
root@mail:~#
service postfix restart

* Stopping Postfix Mail Transport Agent postfix
  ...done.
* Starting Postfix Mail Transport Agent postfix
  ...done.
root@mail:~#
/etc/init.d/amavis restart

Stopping amavisd: amavisd-new.
Starting amavisd: amavisd-new.
  These lines below are added in header section of emails after this configuration.
 
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