SpamAssassin: ???? ???????????? - PowerPoint PPT Presentation

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SpamAssassin: ???? ????????????

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Title: SpamAssassin: Author: Alex Tutubalin Last modified by: Alex Tutubalin Created Date: 10/16/2004 6:50:52 PM – PowerPoint PPT presentation

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Title: SpamAssassin: ???? ????????????


1
SpamAssassin???? ????????????
  • ??????? ?????????lexa_at_lexa.ru
  • ??????? ? ????????

2
??? ??????????? ????????????
  • Lexa.ru ???????????? ????? (??????????????? ?
    1996 ?.).
  • ????? lexa_at_lexa.ru ????????????, ??????
    ???????????, ???????????? ? ???????, ?? ?????? ?
    ? ???????? ? ??????? 8 ???.
  • 600-1000 ???? - ????????? (? 300-500 ???????) ?
    ?????.
  • ????? ????????????? ?????????? ?????, ??????
    ?????, ?????? ????, 100-300 ????????? ? ?????.
  • ???????????? ?????? (RBL, ?????? ??????, ???????
    ?????????? ???????) ????????????.
  • ? ????? 2002 ???? ???????????? SpamAssassin,
    ?????????? ?????? ???????? ??????????? ?????????.

3
SpamAssassin ???????????
  • ????? ???? ????????? ???????? ??? ???????
    ?????????, ?????? ????? ????? ???????? ????????
    ??????.
  • ????? ?????????? ?????? ?? ??????? gt800
  • ??????? ?? Perl, ????? ?????????
  • FreeWare, OpenSource, ???????? Apache (??????? ?
    v3.0)

4
??? ????????????? ? ????????
  • ????????? ????????? (????????????? ???????????
    ??????????? ??? ????????? ?????????????)
  • ????? ??????????, ?? ?????????? (????????
    spamware)
  • ??????? ?? DNS (RBL, SPF)
  • ???? ?????????
  • ??????? ?? ???????????????? ?????? ?????????.
    ??????? ?? ?????? (???????? ?????, ???????????
    ??????????, ???????? spamware).
  • ????????????? ???????.
  • ???????? ?????? ???????? ????????? (Razor, DCC,
    URI-DNSBL).

5
??? ???? ??????
  • ????????? - ???????? ?????? ? ??????????
    ????????? (?????, ??????????, ????????? ??????).
  • ????????????? - ????????? ? ????? ?????? ??
    ???????????? ???? (??????? ???????????? ?? ?2).
  • ??????? - ????????? ? ??????? ????????
    (RBL/DNSBL, URI-DNSBL, Razor, DCC, Pyzor)

6
??????? ??????
  • ???????? RBL
  • header RCVD_IN_CBL rblevalcheck_rbl('CBL',
    cbl.abuseat.org.')
  • describe RCVD_IN_CBL Received via a relay in
    cbl.abuseat.org
  • tflags RCVD_IN_CBL net
  • score RCVD_IN_CBL 1.2
  • ???????? ?????????
  • header NO_REAL_NAME From /"\s\lt?\S\_at_\S\
    gt?\s/
  • describe NO_REAL_NAME From does not include a
    real name
  • score NO_REAL_NAME 0.124 0.178 0.336 0.007
  • ???????? ?????? ??????
  • body MILLION_EMAIL /million (?\w )?(?e-?mail
    )?addresses/i
  • describe MILLION_EMAIL Get a million email
    addresses
  • score MILLION_EMAIL 0.093 0.417 0.937 0.000

7
??????? ??????????
  • ?????? ??????? ????? ???? ???
  • (????? ???? ????????? ?????, ?????????? ? ??????
    ??????? ?????????????).
  • ??????????? (??????????????) ???? ??????
    ?????????????? ?? ????????? ????? ????????
    SpamAssassin.
  • ??? ??????? ????? ???? ?????????????
    ??????????????? ??? ?????????????.
  • ????????? ?????? ?????????????? ????? ?????
    ??????????? ?????? ???????????? ? ???????.
  • ????? ????? ????? ???? ?????????????
    ??????????????? (??? ???????) ??? ?????????????
    (??? ???? ?????).

8
?????????????? ???????????
  • ??????/????? ??????.
  • ??????????? ?????? ???????? ????? ? ???????
    ???????? ?????????.
  • ???????? ??????? ??? ??????? ??????????? SA
    ?????????? ? ?????????? ??????????? ?????????
    ????? ?? ??????? ???????????.
  • ???????????? ?????????????? ?????????.
  • ???????? ??????????, ??????????? ???????? ?????
    ?????? ?????????????.

9
???????? ?????????????
  • ????? ???????????? ??? ????????? ???????? ?
    ???????? ????, ????? ?? ?????? ?????????
    ???????.
  • ??? ?????????? ????????? ?????? ?
    ??????-??????.
  • ???????? ?????? (????????? ????????), ????
    ????????? ??????? ????? ??? ????????.
  • ???????? ???????? ???????????? ? SQL ??? LDAP.
  • ??????????? ???????? ????????????? ?????? ?
    SQL-??.

10
????????? ??????? ? ?? ??????!
  • ???? ????????????? ?????? 2.x ? ????? ??????????,
    ??
  • ?????????????? ???????????? ???????
    ??????????????? ????? ?????? ??????, ??? ?????
    ????? ?????? ????????????.
  • ????????????? ?????? ??????? ? ?????????
    ????????, ????? ???? ?? ???????? ????? ??????,
    ?? ???? ????? ????????? ???????.
  • ????? ?????????? ???????? ?????? ?? ?????????,
    ?????? ???????????? ??? ????? ???????????? (?????
    0.1)
  • ???????? ?????????? ????? 75-85

11
SpamAssassin 3.0 ???????? ??????
  • ???????? ?????? ?????? 3.0 ??????? ????? ??? ?
    ?????? 2.x, ? ?????? ??????? ?? ???? ??????????
    ?????? ????????????
  • ??????? ????????????? ????? 75-91
  • ?????? ???????????? ?? ????? ???????????? ?? ????
  • ??? ?????????? ?????? ????????????
  • ?????????? ?????????????? ?????????.
  • ??? ????????????? ????????????? ??????? ?????
    ???????????? ??? ????????.

12
???????? ?????? ???????? (1)
  • ???????? ?????? SA ??????
  • ?? ??? ????? ?????? ??? ????????????? ???????
    ???????? (RBL, URI-DNSBL, DCC, Razor).
  • ??? ?????????????? ?? ?????? ????? ?????
    ?????? ? ???????? ??????????.
  • ?????????
  • ?????????? ???????? ???????????? 70-85 ?????.
  • ??????? ???????? ???? 4-6 ???????? ????????
    ?????????????.

13
???????? ?????? ???????? (2)
  • ??????????? ????
  • ????????? ???????
  • ????????? ?????????????
  • ????????? ????????????? ???????
  • ?????????
  • 70-85 ?????????????
  • 5 ? ???????? 1
  • 0.5 ? ???????? 2
  • ??????????? ???? ????????? ???????????? ????????
    ???????????? ??????? ?????? ?????? ? ??????
    ??????? ????????????? (??? ?????????? ?????
    ??????, ????????? ???????? ??????? ???)

14
?????????? SpamAssassin 3.0
  • ???????????????? ? ????????
  • ?????? ???????? ?????? (?????? ?? ?????????
    ??????/??????-??????, ????????????? ??
    P3-1000Mhz)
  • 0.2/0.25 ??????/???. ??? ?????????? ???????
    ?????????
  • 0.4/2.2 ??????/???. ????????? ?????????????
    ???????
  • 0.5/3.6 ??????/???. ?????? ????????? ???????
  • ??????? ?????? RAM 30-36Mb ?? ???????
  • ??? ???????? ?????? ? SQL ??????????????
    ??????? ?????????????????? (???????? ? ??????
    ????????).

15
?????????? (???????????)
  • ????????????? ??????
  • ??????? ????????????? ????????.
  • ??? ??????? ?????? ????? (????????????) ?????????
    ????????? ????????.
  • ?????? ?? ???????????? ???????????
  • ??? ??????????? ?????????? ???????? ?????
    ?????????? ?? ??????????, ??????? ? ???
    ???????????? ? ???????? ???????.
  • ??? ???????? ?????? ???????????? ??????
    ??????????? ???????? ?? ?????? ?????????????.
  • ??????? ?????????? ?????? ?????????? ?????????.
  • SA ?? ????? ??????? ? ?????? SMTP-?????? ?
    ????????? ?? ?? ?????????? ?????????.

16
?????? ? ????????????
  • ???????? ?? ??? ???????????, ????????????? SA ???
    ?? ????? ??????? ??????? ????? ?????? ????????.
  • ??? ????????????? ??????? ? ???????????????????
    ??????? ??????????????? ?????
  • ??????? ????????? ????????
  • ??? ????????? ?????? ?????? ????? ??????? (???
    ????????????????????) ????????
  • ??? ????????????? ????????????? ???????
    ?????????? ???????????? ?? ?????? ????????

17
???????????? ?? ?????????
  • ?? ???? ???????
  • ?????????????? (? 0) ???? ??????, ?????? ??????
    ???????????? ?? ??????? c ??????? ???????
    (HEAD/FROM/SUBJ_ILLEGAL_CHARS, BODY_8BITS)
  • ??????? ? ?????? ?????? ???????
    (ok_languages,ok_locales ru)
  • ????????? ????? ?????? (????? ??? ????????? ???
    ??????? ????????????)
  • ??? ????????????? ?????????????? ??????
  • ??? ???????? ???????????? ????????? ???????????
    ???????? ?????, ????????? ????????? ????? ?
    ??????? ????? ?????? ????????? ?????????
    ????????.
  • ???????? ?????? ???? ??????????????? ???
    ???????????.
  • ?? ????? ????? ?? ??????? ??????? ??????? ?????.
  • ????????????? ???????????? (autolearn) ?????
    ???????? ? ??????? ????????? ???????? ? ?????????
    ??????.

18
??????? ?? ????????
  • ??????????, ????????? ???????
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