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Ãâó:http://www.oops.org/?t=lecture&sb=sendmail&n=6 8. SMTP ÀÎÁõ ÇÊÀÚ°¡ »ý°¢ÇÏ´Â 8.10 ¹öÁ¯ÀÇ º¯ÈÁßÀÇ ²ÉÀ̶ó°í »ý°¢ µÇ´Â ±â´ÉÀÌ ¹Ù·Î SMTP ÀÎÁõ ºÎºÐÀÌ´Ù.(¼ÖÁ÷È÷ ±â¼úÀûÀÎ ºÎºÐ¿¡¼´Â Multiple queues...
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## SASL library install ## www.ryuchi.org/HowTo/sendmail/sendmail-8.11.0.html 1.tar xzvf cyrus-sasl-1.5.24.tar.gz 2.cd cyrus-sasl-1.5.24 3./configure --prefix=/usr --enable-login --enable-plai...
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IP TableÀ» ÀÌ¿ëÇÑ FireWall ScriptÀÔ´Ï´Ù. ¿øÃâó´Â [MonMotha's IPTables Firewall]ÀÌ¸ç »ó´ÜºÎÀÇ ¼³Á¤ºÎ¹®À» ¼öÁ¤ÇØ Áֽøé Àßµ¹¾Æ°¡°í ÀÖ½À´Ï´Ù. http://t245.dyndns.org/~monmotha/firewall/index.php ...
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Ãâó:http://www.oops.org/?t=lecture&sb=sendmail&n=6
8. SMTP ÀÎÁõ
ÇÊÀÚ°¡ »ý°¢ÇÏ´Â 8.10 ¹öÁ¯ÀÇ º¯ÈÁßÀÇ ²ÉÀ̶ó°í »ý°¢ µÇ´Â ±â´ÉÀÌ ¹Ù·Î SMTP ÀÎÁõ ºÎºÐÀÌ´Ù.(¼ÖÁ÷È÷ ±â¼úÀûÀÎ ºÎºÐ¿¡¼´Â Multiple queues °¡ ´õ¿í ²ÉÀÏÁö´Â ¸ð¸£°ÚÁö¸¸ ³» ÀÔÀå¿¡¼´Â .. --) ÇÊÀÚ°¡ hosting server¸¦ °ü¸®ÇÏ¸é¼ ¹®Àǹ޴ø Áú¹®Áß¿¡¼ °ÅÀÇ ´ëºÎºÐÀÌ ¿Ö smtp¼¹ö¸¦ ÀÚ½ÅÀÇ µµ¸ÞÀÎÀ¸·Î »ç¿ëÀ» ÇÏÁö ¸øÇÏ´À³Ä´Â Áú¹®À̾ú´Ù.
¿ø·¡ ¾Æ´Â »ç¶÷µéÀº ´Ù ¾Ë°ÚÁö¸¸ smtp server´Â ÀÚ½ÅÀÌ »ç¿ëÇÏ´Â ISPÀÇ mail server¸¦ »ç¿ëÇÏ´Â °ÍÀÌ ¼Óµµ»ó °¡Àå ºü¸£´Ù. ÇÏÁö¸¸ ÀÌ¿¡ ´ëÇÑ Àü¹® Áö½ÄÀÌ ¾ø´Â »ç¶÷µéÀº ÀÌ°ÍÀ» ÀÌÇØÇÏÁö¸¦ ¸øÇÑ´Ù. ±×·¸´Ù°í ¸ðµç ´ë¿ª¿¡ ´ëÇؼ relay¸¦ ¿¾î ÁÖÀÚ´Ï SPMAERÀÇ °ø·« ´ë»óÀÌ »·ÇÏ°í ±×Àú °ü¸®ÀÚ´Â ¼Ó¸¸ Å»»ÓÀ̾ú´Ù. ±×Àú NTÀÇ exchange¿¡¼ Áö¿øÇÏ´Â stmp ÀÎÁõÀ» ¿Ö sendmail¿¡¼´Â Áö¿øÀ» ÇÏÁö ¾ÊÀ»±î.. ÇÏ´Â ÇÑź »ÓÀ̾ú´Ù.
°¢¼³ÇÏ°í »ç¿ë¹ýÀ» ¾Ë¾Æ º¸ÀÚ. compile½Ã¿¡ ÀÌ ±â´ÉÀ» ³Ö¾ú´Ù¸é¼ÂÆûó ÇÊ¿äÇÑ °ÍÀº µû·Î ¾ø´Ù. ¶ÇÇÑ ÇÊÀÚÀÇ FTP ¿¡ ÀÖ´Â sendmail-8.10.0-2kr ÀÌ»ó ¹öÁ¯À» ¼³Ä¡ÇÏ¿´´Ù¸é ±âº»À¸·Î ¼ÂÆÃÀÌ µÇ¾î ÀÖÀ¸´Ï ±×³É »ç¿ëÀ» ÇÏ¸é µÈ´Ù.
±×·³ °£´ÜÇÏ°Ô ÇöÀç ³ªÀÇ smtp ¿¡¼ smtp auth ±â´ÉÀÌ »ç¿ëÀÌ °¡´ÉÇÑÁö ºÎÅÍ »ìÆì º¸µµ·Ï ÇÑ´Ù. ÀÏ´Ü °¡Àå °£´ÜÇÑ ¹æ¹ýÀº ¶Ç´Â sendmail.cf ¿¡¼
# list of authentication mechanisms
O AuthMechanisms=LOGIN PLAIN DIGEST-MD5 CRAM-MD5
¶óÀÎÀÇ ÁÖ¼®ÀÌ Ç®·Á Àְųª ¶Ç´Â ÇØ´ç ¶óÀÎÀÌ ¼³Á¤ÀÌ ÀÖ´ÂÁö¸¦ È®ÀÎÇÏ¸é µÈ´Ù. º¸Åë RedHat 7.x ºÎÅÍ´Â smtp auth ±â´ÉÀÌ Áö¿øÀÌ µÇÁö¸¸ ¿©±â¼ ³íÇÏ´Â login ¹æ½ÄÀÌ ¾Æ´Ï¶ó pam ÀÎÁõ ¹æ½ÄÀ» Áö¿øÇÑ´Ù. ¿©±â¼´Â login ¹æ½ÄÀ» Áö¿ø ¼³¸íÇÒ °ÍÀÌ´Ù.
ÀÏ´Ü ¾ÈµÇ¾î ÀÖ´Ù°í ÆÇ´ÜÀÌ µÈ´Ù¸é ´ÙÀ½À» µû¶ó Çϵµ·Ï ÇÑ´Ù. ´ÙÀ½Àº sendamil 8.10 ÀÌ»ó ¹öÁ¯ÀÌ ¼³Ä¡ µÇ¾î ÀÖ°í, libsasl ¶Ç´Â cyrus-sasl package °¡ ¼³Ä¡°¡ µÇ¾î ÀÖ´Â »óȲ¿¡¼ sendmail auth °¡ ¾ÈµÈ´Ù¸é µÇ°Ô ÇÏ´Â ¹æ¹ýÀÌ´Ù. ÀÏ´Ü /etc/mail ¿¡ º¸¸é sendmail.mc ¶ó´Â ÆÄÀÏÀÌ ÀÖÀ» °ÍÀÌ´Ù. ÀÌ ÆÄÀÏ¿¡ ´ÙÀ½ÀÇ ³»¿ëÀ» ±â¼úÇϵµ·Ï ÇÑ´Ù.
dnl # These are the allowed auth mechanisms. To allow relaying for a user
dnl # that uses one of them, you must set TRUST_AUTH_MECH.
define(`confAUTH_MECHANISMS', `LOGIN PLAIN DIGEST-MD5 CRAM-MD5')dnl
dnl # These are the SMTP auth mechanisms which, if used,
dnl # Sendmail will allow relaying for.
TRUST_AUTH_MECH(`LOGIN PLAIN DIGEST-MD5 CRAM-MD5')dnl
±×¸®°í sendamil.cf file À» ´Ù½Ã »ý¼ºÇÏ¸é µÈ´Ù. ´Ü ÁÖÀÇ ÇÒ°ÍÀº rpm À¸·Î ¼³Ä¡¸¦ Çß°í sendmail.mc ¸¦ ÀÌ¿ëÇÏ¿© sendmail.cf ¸¦ ´Ù½Ã »ý¼ºÇÒ °æ¿ì¿¡´Â sendmail-cf package °¡ ¼³Ä¡°¡ µÇ¾î ÀÖ¾î¾ß ÇÑ´Ù.
ÀÏ´Ü ¼öÁ¤ÇÑ sendmail.mc ´Â ´ÙÀ½°ú °°´Ù. ¹°·Ð Á¶±Ý½Ä Ʋ¸±¼ö´Â ÀÖÁö¸¸ ÆÐŰ¡ ½Ã¿¡ ³ÖÀº ¿É¼Çµé¿¡ µû¶ó Á¶±Ý¾¿ Â÷ÀÌ°¡ ³¯°ÍÀÌ´Ù.
Hanterm - cat /etc/mail/sendmail.mc
[root@oops mail]# cat sendmail.mc
divert(-1)
dnl This is the macro config file used to generate the /etc/sendmail.cf
dnl file. If you modify thei file you will have to regenerate the
dnl /etc/sendmail.cf by running this macro config through the m4
dnl preprocessor:
dnl
dnl m4 /etc/sendmail.mc > /etc/sendmail.cf
dnl
dnl You will need to have the sendmail-cf package installed for this to
dnl work.
include(`/usr/lib/sendmail-cf/m4/cf.m4')
À§ÀÇ ¶óÀÎÀÇ path ¸¦ ÁÖÀÇÇÏÀÚ. RH 7.x ÀÇ °æ¿ì¿¡´Â ¾Æ¸¶ m4 file ÀÇ À§Ä¡°¡
/usr/share/sendmail-cf/m4/cf.m4 ¿¡ À§Ä¡ÇÒ °ÍÀÌ´Ù. ³ªµµ Á¤È®ÇÏ°Ô ±â¾ïÀº
¾È³ª´Ï ¾Ë¾Æ¼ À§ÀÇ °æ·Î¸¦ È®ÀÎÇϱ⠹ٶõ´Ù.
define(`confDEF_USER_ID',``8:12'')
OSTYPE(`linux')
undefine(`UUCP_RELAY')
undefine(`BITNET_RELAY')
define(`confAUTO_REBUILD')
dnl #
dnl # These are the allowed auth mechanisms. To allow relaying for a user
dnl # that uses one of them, you must set TRUST_AUTH_MECH.
define(`confAUTH_MECHANISMS', `LOGIN PLAIN DIGEST-MD5 CRAM-MD5')dnl
dnl # These are the SMTP auth mechanisms which, if used,
dnl # Sendmail will allow relaying for.
TRUST_AUTH_MECH(`LOGIN PLAIN DIGEST-MD5 CRAM-MD5')dnl
dnl #
define(`confTO_CONNECT', `1m')
define(`confTRY_NULL_MX_LIST',true)
define(`confDONT_PROBE_INTERFACES',true)
define(`PROCMAIL_MAILER_PATH',`/usr/bin/procmail')
dnl Security improvement by disallowing VRFY, EXPN
define(`confPRIVACY_FLAGS',`authwarnings,needmailhelo,novrfy,noexpn')dnl
FEATURE(`smrsh',`/usr/sbin/smrsh')
FEATURE(`virtusertable',`hash -o /etc/mail/virtusertable')
FEATURE(redirect)
FEATURE(always_add_domain)
FEATURE(use_cw_file)
FEATURE(local_procmail)
MAILER(smtp)
MAILER(procmail)
FEATURE(`access_db')
FEATURE(`blacklist_recipients')
dnl We strongly recommend to comment this one out if you want to protect
dnl yourself from spam. However, the laptop and users on computers that do
dnl not hav 24x7 DNS do need this.
FEATURE(`accept_unresolvable_domains')
dnl FEATURE(`relay_based_on_MX')
dnl To use multiple queue feature of 8.10.x
define(QUEUE_DIR,`/var/spool/mqueue/q*')
dnl change Statistics file name from statistics to sendmail.st
define(STATUS_FILE, `sendmail.st')
dnl OOPS
[root@oops mail]# m4 /etc/mail/sendmail.mc > /etc/mail/sendmail.cf
À§ÀÇ ¸í·ÉÀ» ÀÌ¿ëÇÏ¿© sendmail.cf ¸¦ »õ·Î »ý¼ºÀ» ÇÒ¼ö ÀÖ´Ù.
[root@oops mail]
À§ÀÇ sendmail.mc ³»¿ë ´ÙÀ½ÀÇ ¸í·ÉÀ» ½ÇÇàÇϸé sendmail.cf °¡ »õ·Î »ý¼ºÀÌ µÇ°Ô µÈ´Ù. ´Ù½Ã ÁÖÀǸ¦ ÇϰǸ¸ m4 ¸í·ÉÀ» ÀÌ¿ëÇÏ¿© sendmail.cf ¸¦ »õ·Î »ý¼ºÇÒ °æ¿ì sendmail-cf package °¡ ¼³Ä¡ µÇ¾î ÀÖ¾î¾ß ÇÑ´Ù´Â °ÍÀÌ´Ù. (¹°·Ð ÀÌ´Â rpm package ·Î sendmail ÀÌ ÀÌ¹Ì ¼³Ä¡ µÇ¾î ÀÖ´Â °æ¿ìÀÌ´Ù.)
´ÙÀ½Àº sasl ¿¡¼ auth ÀÇ ¹æ½ÄÀ» ÁöÁ¤Çϵµ·Ï ÇÑ´Ù. ÀÏ´Ü sasl Àº libsasl ¶Ç´Â cyrus-sasl À̶ó´Â À̸§À¸·Î ¼³Ä¡°¡ µÇ¾î ÀÖÀ» °ÍÀÌ´Ù. ¸¸¾à ÀÌ µÎÆÐÅ°Áö°¡ ¼³Ä¡ µÇ¾î ÀÖÁö ¾Ê´Ù¸é sendmail À» óÀ½ºÎÅÍ ´Ù½Ã ¼³Ä¡ÇØ Áà¾ß ÇÑ´Ù.
ÀÏ´Ü rpm -qa | grep Sendmail.conf ¸í·ÉÀ» ½ÇÇà ÇÏ¿© Sendmail.conf ¸¦ ã¾Æ¼ ´ÙÀ½ÀÇ ³»¿ëÀ» »ðÀÔÇÑ´Ù.
pwcheck_method: shadow
Sendmail.conf °¡ Á¸ÀçÇÏÁö ¾ÊÀ» °æ¿ì¿¡´Â /usr/lib/sasl À̶ó´Â directory °¡ Á¸ÀçÇϸé /usr/lib/sasl/Sendmail.conf ¸¦ »ý¼ºÇÏ¿© À§ÀÇ ³»¿ëÀ» ³Ö¾îÁÖ¸é µÈ´Ù. ±×¸®°í sendmail À» Àç½ÃÀÛ ÇÑ´Ù. (ÇÊÀÚ°¡ ÆÐŰ¡ÇÑ sendmail À» ¼³Ä¡Çϸé À§ÀÇ ºÎºÐÀÌ shadow °¡ ¾Æ´Ï¶ó pam À¸·Î µÇ¾î ÀÖÀ» °ÍÀÌ´Ù. ÀÌ°Ç ´Ù¸¥ ±â´ÉÀ» Ãß°¡Ç߱⠶§¹®¿¡ pam À¸·Î ¼³Á¤À» ÇÑ °ÍÀÌ´Ù. À§ÀÇ °ÍÀÌ shadow À̵ç pam À̵ç Å©°Ô ¹®Á¦°¡ µÉ °ÍÀº ¾ø´Ù.)
±×·³ ¿î¿µÇÏ´Â ¹æ¹ý¿¡ ´ëÇؼ º¸µµ·Ï ÇÏ°Ú´Ù. sendmail¿¡¼ smtp server·Î »ç¿ëÀ» Çϱâ À§Çؼ´Â /etc/mai/access ¿¡¼ ÇØ´ç ´ë¿ª¿¡ ´ëÇÏ¿© RELAY¸¦ Çã¿ëÀ» ÇØ Áà¾ß ÇÑ´Ù. ÇÏÁö¸¸ smtp auth ±â´ÉÀÌ Á¤ÀÇ°¡ µÇ¾î ÀÖÀ¸¸é access¿¡¼ ¼³Á¤À» ÇÒ ÇÊ¿ä ¾øÀÌ (ÀÌ°ÍÀº RELAY¼³Á¤À» ¾ÈÇØ Á൵ µÈ´Ù´Â ¶æÀÌÁö access file¿¡¼ REJECT·Î ¸·¾Æ¼´Â ¾ÈµÈ´Ù´Â ÀǹÌÀÌ´Ù) client side¿¡¼ mail client¿¡¼ ¼³Á¤¸¸ ÇØ ÁÖ¸é µÈ´Ù. ±×·³ Netscape Mailer¿Í Outlook Express¿¡¼ÀÇ ¼³Á¤À» º¸µµ·Ï ÇÏÀÚ.
Netscpae mailer
Edit>Preferences>mail & Newgroups>Mail Servers
¿¡¼ Outgoing mail server user name ¿¡ °èÁ¤À¯Àú¸¦ Àû¾î ÁÖ°í SSL ¸ðµå´Â If Possible ·Î Àâ¾Æ ÁÖ¸é µÈ´Ù. ¹°·Ð Plainµµ °¡´ÉÇÏ´Ù. ±×¸®°í ¸ÞÀÏÀ» º¸³»¸é ÀÎÁõ âÀÌ ¶ß°Ô µÇ¸ç ¿©±â¿¡ °èÁ¤ name°ú °èÁ¤ password·Î loginÀ» ÇÏ¸é µÈ´Ù.
Outlook Express 98
µµ±¸>°èÁ¤>¸ÞÀÏ>°èÁ¤µî·ÏÁ¤º¸>¼¹ö>º¸³»´Â ¸ÞÀϼ¹ö
¿¡¼ "ÀÎÁõ ÇÊ¿ä"¿¡ üũ¸¦ ÇÏ°í ¿·ÀÇ "¼³Á¤"À» Ŭ¸¯ÇÑÈÄ ·Î±×¿Â Á¤º¸¿¡ °èÁ¤ ID¸¦ ³Ö¸é µÈ´Ù. ±×¸®°í º¸¾È¾ÏÈ£ÀÎÁõÀ» »ç¿ëÇÏ¿© ·Î±×¿ÂÀº ¼±ÅÃÇÏ¸é ¾ÈµÈ´Ù ^^; PlainÀ¸·Î ÇØ¾ß ÇÑ´Ù.
±×·³ ´ÙÀ½Àº °£´ÜÇÏ°Ô sendmail¿¡¼ smtp auth±â´ÉÀÌ Á¦´ë·Î ÀÛµ¿À» ÇÏ´ÂÁö »ìÆì º¸µµ·Ï ÇÑ´Ù. ºÓÀº»ö ±ÛÀÚ´Â ÇÊÀÚ°¡ typingÀ» ÇÑ °ÍÀÌ´Ù.
Hanterm - telnet localhost 25
[root@oops mail]# telnet localhost 25
Trying 127.0.0.1...
Connected to localhost.
Escape character is '^]'.
220 oops.org ESMTP Sendmail 8.10.0/8.10.0; Tue, 4 Apr 2000 15:31:05 +0900
ehlo localhost
250-oops.org Hello localhost [127.0.0.1], pleased to meet you
250-ENHANCEDSTATUSCODES
250-EXPN
250-VERB
250-8BITMIME
250-SIZE
250-DSN
250-ONEX
250-ETRN
250-XUSR
250-AUTH LOGIN PLAIN
250 HELP
quit
221 2.0.0 oops.org closing connection
Connection closed by foreign host.
[root@oops etc]#
À§¿¡¼ Èò»ö ±½Àº ±ÛÀÚ·Î AUTH LOGIN PLAINÀÌ ³ª¿À¸é Plain ¹æ½ÄÀÇ loginÀÌ °¡´ÉÇÏ´Ù´Â ÀǹÌÀÌ´Ù. ¹°·Ð compile½Ã¿¡ ¾î¶°ÇÑ ¹æ½ÄÀ¸·Î ÇÏ´À³Ä¿¡ µû¶ó ´Þ¶ó Áö¹Ç·Î ²À À§¿Í°°Àº °á°ú°¡ ³ª¿À¸®¶ó´Â ¹ýÀº ¾øÁö¸¸ ¾î¶°ÇÑ ÇüÅ·εç auth¿Í ºñ½ÁÇÑ ¹®±¸´Â ³ª¿Í¾ß ÇÑ´Ù´Â °ÍÀ» ¾Ë¾Æ¾ß ÇÑ´Ù.
ÀÌ ¿Ü¿¡µµ 25¹ø port·Î Á÷Á¢ loginÇÏ¿© »ç¿ëÀ» ÇÒ¼öµµ ÀÖÁö¸¸ ÀÌ´Â Á» º¹ÀâÇϹǷΠ»ý·«À» Çϸç, ±Ã±ÝÇÑ »ç¶÷µéÀº [ ¿©±â ] ¸¦ ÂüÁ¶ Çϵµ·Ï ÇÑ´Ù.
9. SSL + Sendamil
smtp auth ±â´ÉÀ» »ç¿ëÇϱâ À§Çؼ´Â libsasl °ú openssl À» ¿¬µ¿À» ÇÏ°Ô µÈ´Ù. ´öºÐ¿¡ TLS/TTS ¸¦ ÀÌ¿ëÇÏ¿© ÆÐŶÀ» ¾ÏÈ£È ÇÏ¿© º¸³¾¼ö°¡ ÀÖ´Ù. ÇÏÁö¸¸ ¾Æ½±°Ôµµ ¿ì¸®°¡ °¡Àå ¸¹ÀÌ »ç¿ëÇÏ´Â mail agent ÀÎ OutLook °ú Netscape mail agent ÀÇ °æ¿ì¿¡´Â libsasl ¿¡¼ Á¦°øÇÏ´Â ¾ÏȣȰ¡ Áö¿øÀÌ µÇÁö ¾Ê´Â´Ù.
°á±¹ ÆÐŶÀ» ¾ÏÈ£È ÇÏ¿© »ç¿ëÀ» ÇÏ·Á¸é ¶Ç´Ù¸¥ ÇÁ·Î±×·¥ÀÇ µµ¿òÀ» ¹Þ¾Æ¾ß ÇÑ´Ù. ±× ´ëÇ¥ÀûÀÎ ÇÁ·Î±×·¥ÀÌ ¹Ù·Î sslwrap °ú stunnel ÀÌ ÀÖ´Ù. ÇÊÀÚÀÇ È¨ÆäÀÌÁö¿¡¼´Â sslwrap À» ÀÌ¿ëÇÏ¿© sendmail °ú ssl À» ¿¬µ¿½ÃÅ°´Â ¹æ¹ýÀ» Á¦½ÃÇÏ°í ÀÖ´Ù. ÇÊÀÚÀÇ °Á¶õ¿¡¼ [ Secure TCP with SSLWRAP ] °Á¸¦ ÂüÁ¶ Çϵµ·Ï Ç϶ó.
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From:61.98.172.6 / Absolute number:87
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