Erinevus lehekülje "Postfix" redaktsioonide vahel

Allikas: Kuutõrvaja
 
(ei näidata 4 kasutaja 125 vahepealset redaktsiooni)
1. rida: 1. rida:
'''serveritarkvara paigaldus'''
+
===Sissejuhatus===
  
amavisd-new
+
Postfix on postiedastusagent (ingl. k. mail transport agent, MTA). Postiedastusagendi ülesanne on sooritada kontrolle, võtta epost vastu võrgust või lokaalselt ja anda edasi
  
clamav
+
* postijaotusagendile (ingl. k. mail delivery agent, MDA) kirjade kasutajate postkastidesse jaotamiseks või kopeerida ise failisüsteemi
 +
* järgmisele postiedastusagendile
 +
* viiruste ja spämmi analüüsi süsteemile
  
kogu süsteem toimib nii ,et postfix annab kirja edasi amavisd'le
+
Postiedastusagent on epostisüsteemi keskne komponent, mis ühendab kokku kõik eposti liikumisega toimuvad tegevused
mis kontrollib seda kasutades amavisd'd ja smapsassassinit
 
  
 +
                    internet (teised MTA'd)
 +
 
 +
                            | ^
 +
                            v |
 +
                            _____
 +
  spämmi ja        <---->  |    | <---- lokaalne meilisaatja (nn /usr/sbin/sendmail STDIO)
 +
  viiruste analüüs        | MTA | <---- MTA klient, nt Icedove või Thunderbird
 +
                          |_____| ----> postijaotusagent nt Cyrus või lihtsamal juhul kopeeritakse
 +
                                        kiri faili /var/mail/kasutajanimilinefail
  
'''seadistus postfix'''
+
Kuutõrvajas on käsitletud seoses Postfixi kasutamisega selliseid teemasid
  
main.cf
+
* [[:Mailman kasutamine FreeBSD'ga]]
 
+
* [[:Cyrus kasutamine Gentooga]]
content_filter = amavis:[127.0.0.1]:10024
+
* [[:Postfix'i kasutamine Debianiga]]
+
* [[:Postfix'i arhitektuuri kirjeldus ja kasutamise keerulisemad võimalused]]
smtpd_sender_restrictions =
+
* [[:Kahetasemelise Postfix'i süsteemi kasutamine Debianiga]]
        reject_unknown_sender_domain,
+
* [[:Cyruse kasutamine Postfixi ja Debianiga]]
        permit_mynetworks,
+
* [[:Mailmani kasutamine Postfixi ja Debianiga]]
        reject_rbl_client bl.spamcop.net,
+
* [[:Sympa kasutamine Postfixi ja Debianiga]]
        reject_rbl_client relays.ordb.org,
+
* [[:Amavis kasutamine Debian Lenniga]]
        reject_rbl_client sbl-xbl.spamhaus.org
+
* [[:Postfix'i SMTP AUTH üle TLS vastu Postgresql baasi Debianiga]]
 
+
* [[:Opportunistic encryption kasutamine Postfixiga]]
master.cf
+
* [[:Squirrelmail kasutamine Debian Lennyga]]
 
+
* [[Postfix + courier + mysql]] FreeBSD postfix mailisüsteem koos mysql'is olevate kasutajate ning veebihaldusliidesega paigaldusõpetus
localhost:10025 inet  n  -      n      -      -      smtpd
+
* [[:SPF kasutamine Postfixiga]]
    -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)
 
# $unix_socketname = "$MYHOME/amavisd.sock";  # when using sendmail milter
 
 
 
$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
 
                            # for SA 3.0, cf option is 'use_auto_whitelist')
 
 
 
 
 
$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');
 
# $recipient_delimiter = '+';  # undef disables address extensions altogether
 
# when enabling addr extensions do also Postfix/main.cf: recipient_delimiter=+
 
 
 
$path = '/usr/local/sbin:/usr/local/bin:/usr/sbin:/sbin:/usr/bin:/bin';
 
# $dspam = 'dspam';
 
 
 
$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_PASS;
 
$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
 
 
 
# ## per-recipient personal tables  (NOTE: positive: black, negative: white)
 
 
 
  ## site-wide opinions about senders (the '.' matches any recipient)
 
  '.' => [  # 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],
 
  ),
 
 
 
#  read_hash("/var/amavis/sender_scores_sitewide"),
 
 
 
  { # 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$/ ],
 
 
 
  ### http://www.centralcommand.com/
 
  ['CentralCommand Vexira (new) vascan',
 
    ['vascan','/usr/lib/Vexira/vascan'],
 
    "-a s --timeout=60 --temp=$TEMPBASE -y $QUARANTINEDIR ".
 
    "--vdb=/usr/lib/Vexira/vexira8.vdb --log=/var/log/vascan.log {}",
 
    [0,3], [1,2,5],
 
    qr/(?x)^\s* (?:virus|iworm|macro|mutant|sequence|trojan)\ found:\ ( [^\]\s']+ )\ \.\.\.\ / ],
 
 
 
  ### http://www.hbedv.com/
 
  ['H+BEDV AntiVir or the (old) CentralCommand Vexira Antivirus',
 
    ['antivir','vexira'],
 
    '--allfiles -noboot -nombr -rs -s -z {}', [0], qr/ALERT:|VIRUS:/,
 
    qr/(?x)^\s* (?: ALERT: \s* (?: \[ | [^']* ' ) |
 
        (?i) VIRUS:\ .*?\ virus\ '?) ( [^\]\s']+ )/ ],
 
 
 
  ### http://www.commandsoftware.com/
 
  ['Command AntiVirus for Linux', 'csav',
 
    '-all -archive -packed {}', [50], [51,52,53],
 
    qr/Infection: (.+)/ ],
 
 
 
  ### http://www.symantec.com/
 
  ['Symantec CarrierScan via Symantec CommandLineScanner',
 
    'cscmdline', '-a scan -i 1 -v -s 127.0.0.1:7777 {}',
 
    qr/^Files Infected:\s+0$/, qr/^Infected\b/,
 
    qr/^(?:Info|Virus Name):\s+(.+)/ ],
 
 
 
  ### http://www.symantec.com/
 
  ['Symantec AntiVirus Scan Engine',
 
    'savsecls', '-server 127.0.0.1:7777 -mode scanrepair -details -verbose {}',
 
    [0], qr/^Infected\b/,
 
    qr/^(?:Info|Virus Name):\s+(.+)/ ],
 
    # NOTE: check options and patterns to see which entry better applies
 
 
 
  ### http://www.f-secure.com/products/anti-virus/
 
  ['F-Secure Antivirus', 'fsav',
 
    '--dumb --mime --archive {}', [0], [3,8],
 
    qr/(?:infection|Infected|Suspected): (.+)/ ],
 
 
 
  ['CAI InoculateIT', 'inocucmd',  # retired product
 
    '-sec -nex {}', [0], [100],
 
    qr/was infected by virus (.+)/ ],
 
  # see: http://www.flatmtn.com/computer/Linux-Antivirus_CAI.html
 
 
 
  ### http://www3.ca.com/Solutions/Product.asp?ID=156  (ex InoculateIT)
 
  ['CAI eTrust Antivirus', 'etrust-wrapper',
 
    '-arc -nex -spm h {}', [0], [101],
 
    qr/is infected by virus: (.+)/ ],
 
    # NOTE: requires suid wrapper around inocmd32; consider flag: -mod reviewer
 
    # see http://marc.theaimsgroup.com/?l=amavis-user&m=109229779912783
 
 
 
  ### http://mks.com.pl/english.html
 
  ['MkS_Vir for Linux (beta)', ['mks32','mks'],
 
    '-s {}/*', [0], [1,2],
 
    qr/--[ \t]*(.+)/ ],
 
 
 
  ### http://mks.com.pl/english.html
 
  ['MkS_Vir daemon', 'mksscan',
 
    '-s -q {}', [0], [1..7],
 
    qr/^... (\S+)/ ],
 
 
 
  ### http://www.nod32.com/
 
  ['ESET Software NOD32', 'nod32',
 
    '--arch --mail {}', [0], [1,10], qr/^object=.*, virus="(.*?)",/ ],
 
  # with old versions use:
 
  #  '-all -subdir+ {}', [0], [1,2],
 
  #  qr/^.+? - (.+?)\s*(?:backdoor|joke|trojan|virus|worm)/ ],
 
 
 
  ### http://www.nod32.com/
 
  ['ESET Software NOD32 - Client/Server Version', 'nod32cli',
 
    '-a -r -d recurse --heur standard {}', [0], [10,11],
 
    qr/^\S+\s+infected:\s+(.+)/ ],
 
 
 
  ### http://www.norman.com/products_nvc.shtml
 
  ['Norman Virus Control v5 / Linux', 'nvcc',
 
    '-c -l:0 -s -u -temp:$TEMPBASE {}', [0,10,11], [1,2,14],
 
    qr/(?i).* virus in .* -> \'(.+)\'/ ],
 
 
 
  ### http://www.pandasoftware.com/
 
  ['Panda Antivirus for Linux', ['pavcl'],
 
    '-aut -aex -heu -cmp -nbr -nor -nso -eng {}',
 
    qr/Number of files infected[ .]*: 0+(?!\d)/,
 
    qr/Number of files infected[ .]*: 0*[1-9]/,
 
    qr/Found virus :\s*(\S+)/ ],
 
 
 
  ### http://www.nai.com/
 
  ['NAI McAfee AntiVirus (uvscan)', 'uvscan',
 
    '--secure -rv --mime --summary --noboot - {}', [0], [13],
 
    qr/(?x) Found (?:
 
        \ the\ (.+)\ (?:virus|trojan)  |
 
        \ (?:virus|trojan)\ or\ variant\ ([^ ]+)  |
 
        :\ (.+)\ NOT\ a\ virus)/,
 
  ],
 
 
 
  ### http://www.virusbuster.hu/en/
 
  ['VirusBuster', ['vbuster', 'vbengcl'],
 
    "{} -ss -i '*' -log=$MYHOME/vbuster.log", [0], [1],
 
    qr/: '(.*)' - Virus/ ],
 
 
 
 
 
  ### http://www.cyber.com/
 
  ['CyberSoft VFind', 'vfind',
 
    '--vexit {}/*', [0], [23], qr/##==>>>> VIRUS ID: CVDL (.+)/,
 
  # sub {$ENV{VSTK_HOME}='/usr/lib/vstk'},
 
  ],
 
 
 
  ### http://www.ikarus-software.com/
 
  ['Ikarus AntiVirus for Linux', 'ikarus',
 
    '{}', [0], [40], qr/Signature (.+) found/ ],
 
 
 
  ### http://www.bitdefender.com/
 
  ['BitDefender', 'bdc',
 
    '--all --arc --mail {}', qr/^Infected files *:0+(?!\d)/,
 
    qr/^(?:Infected files|Identified viruses|Suspect files) *:0*[1-9]/,
 
    qr/(?:suspected|infected): (.*)(?:\033|$)/ ],
 
 
 
);
 
 
 
 
 
@av_scanners_backup = (
 
 
 
  ### http://www.clamav.net/  - backs up clamd or Mail::ClamAV
 
  ['ClamAV-clamscan', 'clamscan',
 
    "--stdout --disable-summary -r --tempdir=$TEMPBASE {}", [0], [1],
 
    qr/^.*?: (?!Infected Archive)(.*) FOUND$/ ],
 
 
 
  ### http://www.f-prot.com/  - backs up F-Prot Daemon
 
  ['FRISK F-Prot Antivirus', ['f-prot','f-prot.sh'],
 
    '-dumb -archive -packed {}', [0,8], [3,6],
 
    qr/Infection: (.+)|\s+contains\s+(.+)$/ ],
 
 
 
  ### http://www.trendmicro.com/  - backs up Trophie
 
  ['Trend Micro FileScanner', ['/etc/iscan/vscan','vscan'],
 
    '-za -a {}', [0], qr/Found virus/, qr/Found virus (.+) in/ ],
 
 
 
  ### http://www.sald.com/, http://drweb.imshop.de/  - backs up DrWebD
 
  ['drweb - DrWeb Antivirus',
 
    ['/usr/local/drweb/drweb', '/opt/drweb/drweb', 'drweb'],
 
    '-path={} -al -go -ot -cn -upn -ok-',
 
    [0,32], [1,9,33], qr' infected (?:with|by)(?: virus)? (.*)$'],
 
 
 
 
 
 
 
);
 
 
 
 
 
1;  # insure a defined return
 
 
 
 
 
 
 
'''automaatne start'''
 
 
 
amavisd_enable="YES"
 
clamav_clamd_enable="YES"
 
clamav_freshclam_enable="YES"
 
 
 
 
 
 
 
'''kontroll töötamisel'''
 
 
 
heidame pilgu maillog faili
 
kõigi kirjadekohta peaks tekkima rida
 

Viimane redaktsioon: 23. september 2010, kell 15:44

Sissejuhatus

Postfix on postiedastusagent (ingl. k. mail transport agent, MTA). Postiedastusagendi ülesanne on sooritada kontrolle, võtta epost vastu võrgust või lokaalselt ja anda edasi

  • postijaotusagendile (ingl. k. mail delivery agent, MDA) kirjade kasutajate postkastidesse jaotamiseks või kopeerida ise failisüsteemi
  • järgmisele postiedastusagendile
  • viiruste ja spämmi analüüsi süsteemile

Postiedastusagent on epostisüsteemi keskne komponent, mis ühendab kokku kõik eposti liikumisega toimuvad tegevused

                   internet (teised MTA'd)
 
                            | ^
                            v |
                           _____
 spämmi ja        <---->  |     | <---- lokaalne meilisaatja (nn /usr/sbin/sendmail STDIO)
 viiruste analüüs         | MTA | <---- MTA klient, nt Icedove või Thunderbird
                          |_____| ----> postijaotusagent nt Cyrus või lihtsamal juhul kopeeritakse 
                                        kiri faili /var/mail/kasutajanimilinefail

Kuutõrvajas on käsitletud seoses Postfixi kasutamisega selliseid teemasid