Postfix
Allikas: Kuutõrvaja
Serveritarkvara paigaldus
amavisd-new
clamav
Kogu süsteem toimib nii, et postfix annab kirja edasi amavisd'le, mis kontrollib seda kasutades amavisd'd ja smapsassassinit
Seadistus postfix
main.cf
content_filter = amavis:[127.0.0.1]:10024
smtpd_sender_restrictions =
reject_unknown_sender_domain,
permit_mynetworks,
reject_rbl_client bl.spamcop.net,
reject_rbl_client relays.ordb.org,
reject_rbl_client sbl-xbl.spamhaus.org
master.cf
localhost:10025 inet n - n - - smtpd -o content_filter= -o local_recipient_maps= -o relay_recipient_maps= -o myhostname=localhost.eenet.ee -o smtpd_helo_restrictions= -o smtpd_client_restrictions= -o smtpd_sender_restrictions= -o smtpd_recipient_restrictions=permit_mynetworks,reject -o mynetworks=127.0.0.0/8 # amavis unix - - n - 4 smtp -o smtp_data_done_timeout=1200 -o smtp_send_xforward_command=yes -o disable_dns_lookups=yes
konfig amavisd
use strict;
$max_servers = 4; # number of pre-forked children (2..15 is common)
$daemon_user = 'vscan'; # (no default; customary: vscan or amavis)
$daemon_group = 'vscan'; # (no default; customary: vscan or amavis)
$mydomain = 'eenet.ee'; # a convenient default for other settings
$MYHOME = '/var/amavis'; # a convenient default for other settings
$TEMPBASE = "$MYHOME/tmp"; # working directory, needs to be created manually
$ENV{TMPDIR} = $TEMPBASE; # environment variable TMPDIR
$QUARANTINEDIR = '/var/virusmails';
@local_domains_maps = ( [".$mydomain"] );
$log_level = 2; # verbosity 0..5
$log_recip_templ = undef; # disable by-recipient level-0 log entries
$DO_SYSLOG = 1; # log via syslogd (preferred)
$SYSLOG_LEVEL = 'mail.debug';
$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; # listen on this local TCP port(s) (see $protocol)
$sa_tag_level_deflt = undef; # add spam info headers if at, or above that level
$sa_tag2_level_deflt = 5.0; # add 'spam detected' headers at that level
$sa_kill_level_deflt = 7.0; # triggers spam evasive actions
$sa_dsn_cutoff_level = 9; # spam level beyond which a DSN is not sent
$sa_quarantine_cutoff_level = 20; # spam level beyond which quarantine is off
$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?
$sa_auto_whitelist = 1; # turn on AWL in SA 2.63 or older (irrelevant
$virus_admin = undef; # notifications recip.
$mailfrom_notify_admin = "virusalert\@$mydomain"; # notifications sender
$mailfrom_notify_recip = "virusalert\@$mydomain"; # notifications sender
$mailfrom_notify_spamadmin = "spam.police\@$mydomain"; # notifications sender
$mailfrom_to_quarantine = ; # null return path; uses original sender if undef
@addr_extension_virus_maps = ('virus');
@addr_extension_spam_maps = ('spam');
@addr_extension_banned_maps = ('banned');
@addr_extension_bad_header_maps = ('badh');
$path = '/usr/local/sbin:/usr/local/bin:/usr/sbin:/sbin:/usr/bin:/bin';
$MAXLEVELS = 14;
$MAXFILES = 1500;
$MIN_EXPANSION_QUOTA = 100*1024; # bytes (default undef, not enforced)
$MAX_EXPANSION_QUOTA = 300*1024*1024; # bytes (default undef, not enforced)
$sa_spam_subject_tag = '***SPAM*** ';
$defang_virus = 1; # MIME-wrap passed infected mail
$defang_banned = 1; # MIME-wrap passed mail containing banned name
$final_virus_destiny = D_DISCARD;
$final_banned_destiny = D_DISCARD;
$final_spam_destiny = D_DISCARD;
$final_bad_header_destiny = D_PASS;
[qr/^/ => 1], # true for everything else
));
@keep_decoded_original_maps = (new_RE(
qr'^MAIL-UNDECIPHERABLE$', # recheck full mail if it contains undecipherables
qr'^(ASCII(?! cpio)|text|uuencoded|xxencoded|binhex)'i,
));
$banned_filename_re = new_RE(
# block certain double extensions anywhere in the base name
qr'\.[^./]*[A-Za-z][^./]*\.(exe|vbs|pif|scr|bat|cmd|com|cpl|dll)\.?$'i,
qr'^application/x-msdownload$'i, # block these MIME types
qr'^application/x-msdos-program$'i,
qr'^application/hta$'i,
[ qr'^\.(rpm|cpio|tar)$' => 0 ], # allow any in Unix-type archives
qr'.\.(exe|vbs|pif|scr|bat|cmd|com|cpl)$'i, # banned extension - basic
qr'^\.(exe-ms)$', # banned file(1) types
);
@score_sender_maps = ({ # a by-recipient hash lookup table,
# results from all matching recipient tables are summed
'.' => [ # the _first_ matching sender determines the score boost
new_RE( # regexp-type lookup table, just happens to be all soft-blacklist
[qr'^(bulkmail|offers|cheapbenefits|earnmoney|foryou)@'i => 5.0],
[qr'^(greatcasino|investments|lose_weight_today|market\.alert)@'i=> 5.0],
[qr'^(money2you|MyGreenCard|new\.tld\.registry|opt-out|opt-in)@'i=> 5.0],
[qr'^(optin|saveonlsmoking2002k|specialoffer|specialoffers)@'i => 5.0],
[qr'^(stockalert|stopsnoring|wantsome|workathome|yesitsfree)@'i => 5.0],
[qr'^(your_friend|greatoffers)@'i => 5.0],
[qr'^(inkjetplanet|marketopt|MakeMoney)\d*@'i => 5.0],
),
{ # a hash-type lookup table (associative array)
'pac@c-s.fr' => -3.0,
'nobody@cert.org' => -3.0,
'cert-advisory@us-cert.gov' => -3.0,
'owner-alert@iss.net' => -3.0,
'slashdot@slashdot.org' => -3.0,
'bugtraq@securityfocus.com' => -3.0,
'ntbugtraq@listserv.ntbugtraq.com' => -3.0,
'security-alerts@linuxsecurity.com' => -3.0,
'mailman-announce-admin@python.org' => -3.0,
'amavis-user-admin@lists.sourceforge.net'=> -3.0,
'notification-return@lists.sophos.com' => -3.0,
'owner-postfix-users@postfix.org' => -3.0,
'owner-postfix-announce@postfix.org' => -3.0,
'owner-sendmail-announce@lists.sendmail.org' => -3.0,
'sendmail-announce-request@lists.sendmail.org' => -3.0,
'donotreply@sendmail.org' => -3.0,
'ca+envelope@sendmail.org' => -3.0,
'noreply@freshmeat.net' => -3.0,
'owner-technews@postel.acm.org' => -3.0,
'ietf-123-owner@loki.ietf.org' => -3.0,
'cvs-commits-list-admin@gnome.org' => -3.0,
'rt-users-admin@lists.fsck.com' => -3.0,
'clp-request@comp.nus.edu.sg' => -3.0,
'surveys-errors@lists.nua.ie' => -3.0,
'emailnews@genomeweb.com' => -5.0,
'yahoo-dev-null@yahoo-inc.com' => -3.0,
'returns.groups.yahoo.com' => -3.0,
'clusternews@linuxnetworx.com' => -3.0,
lc('lvs-users-admin@LinuxVirtualServer.org') => -3.0,
lc('owner-textbreakingnews@CNNIMAIL12.CNN.COM') => -5.0,
# soft-blacklisting (positive score)
'sender@example.net' => 3.0,
'.example.net' => 1.0,
},
], # end of site-wide tables
});
@decoders = (
['mail', \&do_mime_decode],
['asc', \&do_ascii],
['uue', \&do_ascii],
['hqx', \&do_ascii],
['ync', \&do_ascii],
['F', \&do_uncompress, ['unfreeze','freeze -d','melt','fcat'] ],
['Z', \&do_uncompress, ['uncompress','gzip -d','zcat'] ],
['gz', \&do_gunzip],
['gz', \&do_uncompress, 'gzip -d'],
['bz2', \&do_uncompress, 'bzip2 -d'],
['lzo', \&do_uncompress, 'lzop -d'],
['rpm', \&do_uncompress, ['rpm2cpio.pl','rpm2cpio'] ],
['cpio', \&do_pax_cpio, ['pax','gcpio','cpio'] ],
['tar', \&do_pax_cpio, ['pax','gcpio','cpio'] ],
['tar', \&do_tar],
['deb', \&do_ar, 'ar'],
['zip', \&do_unzip],
['rar', \&do_unrar, ['rar','unrar'] ],
['arj', \&do_unarj, ['arj','unarj'] ],
['arc', \&do_arc, ['nomarch','arc'] ],
['zoo', \&do_zoo, 'zoo'],
['lha', \&do_lha, 'lha'],
['cab', \&do_cabextract, 'cabextract'],
['tnef', \&do_tnef],
['exe', \&do_executable, ['rar','unrar'], 'lha', ['arj','unarj'] ],
);
@av_scanners = (
### http://www.clamav.net/
['ClamAV-clamd',
\&ask_daemon, ["CONTSCAN {}\n", "/var/run/clamav/clamd"],
qr/\bOK$/, qr/\bFOUND$/,
qr/^.*?: (?!Infected Archive)(.*) FOUND$/ ],
);
@av_scanners_backup = (
);
Automaatne start
amavisd_enable="YES" clamav_clamd_enable="YES" clamav_freshclam_enable="YES"
Spamitõrje uuendus
sa-update -D
spamassassin --lint && /usr/local/etc/rc.d/spamd.sh.sample restart
--lint kontrollib ega reeglites kala pole
Kontroll töötamisel
Heidame pilgu maillog faili, kõigi kirjadekohta peaks tekkima rida
