Zainstaluj amavisd-new, SpamAssassin, ClamAV

Zainstaluj amavisd-new, SpamAssassin, ClamAV i
Aby zainstalować amavisd-new, spamassassin i clamav, uruchom następujące polecenie:

apt-get install amavisd-new spamassassin clamav clamav-daemon rozpakowywać zoo bzip2 unzoo libnet-ph-perl libnet-snpp libnet-perl perl-telnet-pax lzop nomarcha

Następnie musimy skonfigurować amavisd-new. Konfiguracja jest podzielona na różne pliki, które znajdują się w / etc / amavis / conf.d katalogu. Spójrz na każdej z nich do zapoznania się z konfiguracją. Większość ustawień jest w porządku, jednak musimy zmodyfikować trzy pliki:

Najpierw musimy włączyć ClamAV oraz SpamAssassin w / etc/amavis/conf.d/15-content_filter_mode poprzez odkomentowanie @ bypass_virus_checks_maps i @ bypass_spam_checks_maps linii:

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

Plik powinien wyglądać tak:

use strict;

# You can modify this file to re-enable SPAM checking through spamassassin
# 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, \$bypass_virus_checks_re);


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

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

1; # insure a defined return

A następnie należy spojrzeć na ustawienia spam i działań na rzecz spam-/virus-mails w / etc/amavis/conf.d/20-debian_defaults. Nie trzeba nic zmieniać, jeśli domyślne ustawienia są ok dla Ciebie. Plik zawiera wiele wyjaśnień, więc nie ma potrzeby wyjaśniać ustawienia tutaj:

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

$QUARANTINEDIR = "$MYHOME/virusmails";

$log_recip_templ = undef; # disable by-recipient level-0 log entries
$DO_SYSLOG = 1; # log via syslogd (preferred)
$syslog_ident = 'amavis'; # syslog ident tag, prepended to all messages
$syslog_facility = 'mail';
$syslog_priority = 'debug'; # switch to info to drop debug output, etc

$enable_db = 1; # enable use of BerkeleyDB/libdb (SNMP and nanny)
$enable_global_cache = 1; # enable use of libdb-based cache if $enable_db=1

$inet_socket_port = 10024; # default listenting socket

$sa_spam_subject_tag = '***SPAM*** ';
$sa_tag_level_deflt = 2.0; # add spam info headers if at, or above that level
$sa_tag2_level_deflt = 6.31; # add 'spam detected' headers at that level
$sa_kill_level_deflt = 6.31; # triggers spam evasive actions
$sa_dsn_cutoff_level = 10; # spam level beyond which a DSN is not sent

$sa_mail_body_size_limit = 200*1024; # don't waste time on SA if mail is larger
$sa_local_tests_only = 0; # only tests which do not require internet access?

[...]
$final_virus_destiny = D_DISCARD; # (data not lost, see virus quarantine)
$final_banned_destiny = D_BOUNCE; # D_REJECT when front-end MTA
$final_spam_destiny = D_BOUNCE;
$final_bad_header_destiny = D_PASS; # False-positive prone (for spam)


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

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

use strict;

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

$pax='pax';

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

Afterwards, run these commands to add the clamav user to the amavis group and to restart 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 configure Postfix to pipe incoming email through amavisd-new:

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

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

vi /etc/postfix/master.cf

[...]
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_mynetworks,reject
-o mynetworks=127.0.0.0/8
-o strict_rfc821_envelopes=yes
-o receive_override_options=no_unknown_recipient_checks,no_header_body_checks
-o smtpd_bind_address=127.0.0.1

Then restart Postfix:

/etc/init.d/postfix restart

Now run

netstat -tap

and you should see Postfix (master) listening on port 25 (smtp) and 10025, and amavisd-new on port 10024:

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 14491/amavisd (mast
tcp 0 0 localhost.localdo:10025 *:* LISTEN 14869/master
tcp 0 0 localhost.localdo:mysql *:* LISTEN 12181/mysqld
tcp 0 0 *:sunrpc *:* LISTEN 1684/portmap
tcp 0 0 *:auth *:* LISTEN 2036/inetd
tcp 0 0 *:1522 *:* LISTEN 2077/rpc.statd
tcp 0 0 *:smtp *:* LISTEN 14869/master
tcp 0 0 localhost.localdom:smtp localhost.localdom:2894 TIME_WAIT -
tcp6 0 0 *:imaps *:* LISTEN 12453/couriertcpd
tcp6 0 0 *:pop3s *:* LISTEN 12482/couriertcpd
tcp6 0 0 *:pop3 *:* LISTEN 12463/couriertcpd
tcp6 0 0 *:imap2 *:* LISTEN 12436/couriertcpd
tcp6 0 0 *:www *:* LISTEN 3712/apache2
tcp6 0 0 *:ssh *:* LISTEN 2058/sshd
tcp6 0 0 server1.example.com:ssh ::ffff:192.168.0.2:4515 ESTABLISHED2139/0
tcp6 0 0 server1.example.com:ssh ::ffff:192.168.0.2:4648 ESTABLISHED14784/sshd: root@no



10 Install Razor, Pyzor And DCC And Configure SpamAssassin
Razor, Pyzor and DCC are spamfilters that use a collaborative filtering network. To install them, run

apt-get install razor pyzor dcc-client

Now we have to tell SpamAssassin to use these three programs. Edit /etc/spamassassin/local.cf and add the following lines to it:

vi /etc/spamassassin/local.cf

[...]

# dcc
use_dcc 1
dcc_path /usr/bin/dccproc
dcc_add_header 1
dcc_dccifd_path /usr/sbin/dccifd

#pyzor
use_pyzor 1
pyzor_path /usr/bin/pyzor
pyzor_add_header 1

#razor
use_razor2 1
razor_config /etc/razor/razor-agent.conf

#bayes
use_bayes 1
use_bayes_rules 1
bayes_auto_learn 1
Restart amavisd-new afterwards:

/etc/init.d/amavis restart