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Debian 6 MAIL Server Run with Clamav


Run with Clamav

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 62: 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.

Starting ClamAV daemon: clamd.


root@mail:~# /etc/init.d/spamassassin start 

Starting SpamAssassin Mail Filter Daemon: spamd.


root@mail:~# /etc/init.d/postfix restart 

Stopping Postfix Mail Transport Agent: postfix.

Starting Postfix Mail Transport Agent: postfix.


root@mail:~# /etc/init.d/amavis restart 

Stopping amavisd: amavisd-new.

Starting amavisd: amavisd-new.

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