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À¥¼¹ö Á¾·ù
¸ÞÀÏÁÖ¼Ò º¯Á¶´Â no, SPF(Sender Policy Framework)±â¼ú¿¡ ´ëÇØ
ÀÛ¼ºÀÏ : 2005/08/03 15:44
±Û¾´ÀÌ : ÁÁÀºÁøÈ£ (
http://coffeenix.net/
)
Á¶È¸¼ö : 17354
[
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Á¦ ¸ñ : ¸ÞÀÏÁÖ¼Ò º¯Á¶´Â no, SPF(Sender Policy Framework)±â¼ú¿¡ ´ëÇØ
ÀÛ¼ºÀÚ : ÁÁÀºÁøÈ£(truefeel,
http://coffeenix.net/
)
ÀÛ¼ºÀÏ : 2005.8.3(¼ö) ¿ÀÈÄ
»óÄèÇÑ ¾Æħ¿¡ ½ºÆÔ¸ÞÀÏ·Î °¡µæÂù ¸ÞÀÏÇÔÀ» ¿ ¶§ ¸¶´Ù Ŭ¸¯°ú »èÁ¦ÀÇ ¹Ýº¹À¸·Î Â¥Áõ³ ÇϷ縦 ½ÃÀÛÇÑ ÀûÀº ¾ø´ÂÁö?
- Antivirus
- RBL, SURBL
- procmail, byspamÅëÇÑ ½ºÆÔÇÊÅ͸µ
- joe job attack¿¡ ´ëÇÑ ¹æ¾î ¼³Á¤
- spamassassinÈ°¿ëÇÑ Á¡¼öÁ¦ ¸ÞÀÏ ÇÊÅ͸µ
µî ´Ù¾çÇÑ ¹æ¹ýµé·Î ¸ÞÀÏ ÇÊÅ͸µÀ» Çϴµ¥ ¿À´ÃÀº SPF¿¡ ´ëÇØ ¾Ë¾Æº¸°Ú´Ù.
1. SPF(Sender Policy Framework)¶õ
10°³ÀÇ Æ÷ÅлçÀÌÆ®°¡ SPF±â¼úÀ» ÅëÇؼ ½ºÆÔ¸ÞÀÏÀ» ÇÊÅ͸µÇÒ °èȹÀ̶ó´Â ¿À´ÃÀÚ ±â»ç¸¦ ºÃ´Ù.
Meng Weng Wong¿¡ ÀÇÇØ 2003³â¿¡ ½ÃÀÛµÈ SPF±â¼úÀº ¸ÞÀÏÀÇ Çì´õ¸¦ º¸°í ½ÇÁ¦ ÇØ´ç ¸ÞÀϼ¹ö¿¡¼ º¸³»Áø
°ÍÀÎÁö¸¦ ÆÇ´ÜÇÏ¿© ¸ÞÀÏ ¼ö½ÅÀ» ¸·´Â ¹æ¹ýÀÌ´Ù.
¿¹¸¦ µé¾î
¸ÞÀÏÀÇ From Çì´õ¿¡ foo@spammer.com ¶ó°í ÀûÇôÀÖÀ¸¸é
spammer.com À» °ü¸®ÇÏ´Â DNS¸¦ ÅëÇؼ
ÇØ´ç ¸ÞÀÏÀÌ ½ÇÁ¦ spammer.com¿¡¼ ¼³Á¤ÇÑ IP¿Í ¼ö½ÅµÈ ¸ÞÀÏÇì´õÀÇ IP¿Í ºñ±³Çؼ ´Ù¸£¸é ¼ö½ÅÀ» °ÅºÎÇÏ°Ô
µÈ´Ù. Áï, ½ÇÁ¦·Î hanmail.net¿¡¼ º¸³»Áö ¾ÊÁö ¾Ê¾ÒÀ¸¸é¼ ¸ÞÀÏÁÖ¼Ò´Â @hanmail.net ·Î ¼Ó¿©¼ ¹ß¼ÛµÇ´Â
¸ÞÀÏÀº ÇÊÅ͸µÀÌ °¡´ÉÇÏ°Ô µÇ´Â °ÍÀÌ´Ù.
»çÁøÃâó :
http://pm-lib.sourceforge.net/
2. SPF ±â¼ú Àû¿ëÀ§ÇÑ DNS ¼³Á¤
SPF ±â¼úÀ» Àû¿ëÇϱâ À§Çؼ´Â ¸ÞÀϼ¹ö¸¦ ¿î¿µÁßÀÎ »çÀÌÆ®ÀÇ DNS¿¡´Â TXT ·¹ÄÚµå ¼³Á¤ÀÌ ÇÊ¿äÇÏ´Ù.
ÀÌ ¼³Á¤Àº ´Ù¸¥ ¸ÞÀϼö½Å¼¹öµé¿¡°Ô SPFÁ¤Ã¥À» ÅëÇØ ¸ÞÀÏÀ» ÇÊÅ͸µÇϵµ·Ï µµ¿òÀ» ÁÖ±âÀ§ÇÑ ¼³Á¤ÀÌÁö
º»ÀÎÀÇ ¸ÞÀϼ¹ö·Î ¼ö½ÅµÈ ¸ÞÀÏÀÌ ÇÊÅ͸µµÇµµ·Ï ¼³Á¤ÇÏ´Â °ÍÀÌ ¾Æ´Ï´Ï, DNS ¼³Á¤Çß´Ù°í '¾î~ ÇÊÅ͸µÀÌ
¾ÈµÇÁö'ÇÏ°í Çê»ðÁýÇÏÁö ¸»±â ¹Ù¶õ´Ù.
SPF ±â¼úÀ» Àû¿ëÇÏ°Ú´Ù°í º¸µµµÈ 10°³ÀÇ Æ÷ÅÐ »çÀÌÆ®¿¡ ´ëÇØ DNS ¼³Á¤À» È®ÀÎÇÑ °á°ú 5°÷ÀÇ DNS¿¡´Â
ÀÌ¹Ì TXT ¼³Á¤ÀÌ µÇ¾î ÀÖ¾ú´Ù.
¡Ø 10°³ Æ÷ÅÐ »çÀÌÆ®
nownuri.net, hanmail.net, chol.com, dreamwiz.com, empas.com(empal.com),
korea.com, hotmail.com, paran.com, naver.com, nate.com
#
dig txt µµ¸ÞÀÎ
;; ANSWER SECTION:
korea.com. 1759 IN TXT "v=spf1 mx ip4:210.117.14.85 ip4:211.109.1.111
ip4:211.109.1.113 ip4:211.109.1.114 ip4:211.109.1.115 ip4:211.109.1.151 ip4:211.109.1.152
ip4:211.109.11.35 ip4:211.109.11.40 ip4:211.109.2.50 ip4:211.109.2.51 ~all"
;; ANSWER SECTION:
nownuri.net. 10800 IN TXT "v=spf1 a:203.238.128.57 a:203.238.128.90 ~all"
;; ANSWER SECTION:
chol.com. 3600 IN TXT "v=spf1 ip4:203.252.3.0/24 ~all"
;; ANSWER SECTION:
dreamwiz.com. 900 IN TXT "v=spf1 ip4:211.39.128.0/24 a mx ptr ~all"
;; ANSWER SECTION:
hotmail.com. 3600 IN TXT "v=spf1 include:spf-a.hotmail.com include:spf-b.hotmail.com
include:spf-c.hotmail.com include:spf-d.hotmail.com ~all"
;; ANSWER SECTION:
spf-a.hotmail.com. 2590 IN TXT "v=spf1 ip4:209.240.192.0/19 ip4:65.52.0.0/14
ip4:131.107.0.0/16 ip4:157.54.0.0/15 ip4:157.56.0.0/14 ip4:157.60.0.0/16 ip4:167.220.0.0/16
ip4:204.79.135.0/24 ip4:204.79.188.0/24 ip4:204.79.252.0/24 ip4:207.46.0.0/16 ip4:199.2.137.0/24 ~all"
Àú ¼³Á¤À» º¸°í ¾î¶»°Ô TXT¸¦ ¼³Á¤ÇؾßÇÏ´ÂÁö ´«Ä¡¸¦ ëÀ» °ÍÀÌ´Ù.
---------- ---------------------------------------------------------------------------
methods ¼³ ¸í
---------- ---------------------------------------------------------------------------
v=spf1 SPFÀÇ ¹öÀü
ip4 ¸ÞÀÏÀ» ¼Û½ÅÇÏ´Â IPÁÖ¼Òµé. 211.39.128.0/24ó·³ CIDRÇüÅ·Πǥ½Ã °¡´É
a DNSÀÇ A ·¹ÄÚµå·Î ¼³Á¤ÇÑ IPÁÖ¼Ò¸¦ sender·Î ¼³Á¤
¿¹¸¦ µé¾î dreamwiz.com¶ó¸é
dreamwiz.comÀÇ IP 211.39.128.129¿Í 211.39.128.129À» sender·Î ÆÇ´ÜÇÔÀ» ÀǹÌ
a:foo.com ó·³ µµ¸ÞÀÎÀ» ÁöÁ¤ÇÒ ¼öµµ ÀÖ´Ù.
mx MX ·¹Äڵ忡 ÁöÁ¤ÇÑ IPÁÖ¼ÒµéÀ» sender·Î ÆÇ´ÜÇ϶ó´Â ÀǹÌ
ptr IP¿¡ ´ëÇØ lookupÀ» ÇÏ¿© PTR ·¹Äڵ忡 ÁöÁ¤µÇ¾î ÀÖÀ¸¸é sender·Î ÆÇ´ÜÇ϶ó´Â ÀǹÌ
include ÁöÁ¤ÇÑ µµ¸ÞÀÎÀÇ TXT ·¹Äڵ忡¼ ¼³Á¤À» ã´Â´Ù.
~all ÀÌ method´Â TXT ·¹ÄÚµåÀÇ ³¡¿¡ ³Ö¾îÁֱ⠹ٶõ´Ù.
---------- ---------------------------------------------------------------------------
º¸´Ù ÀÚ¼¼ÇÑ »çÇ×Àº
http://spf.pobox.com/mechanisms.html
¸¦ ÂüÁ¶Çϱ⠹ٶõ´Ù.
3. °ü·Ã »çÀÌÆ®
* SPF
http://spf.pobox.com/
http://spf.pobox.com/faq.html
* SPF Mechanisms
http://spf.pobox.com/mechanisms.html
* An Overview of the Sender Policy Framework
http://www.msexchange.org/tutorials/Sender-Policy-Framework.html
* SPF±â¼úÀ» À§ÇÑ DNS ¼³Á¤
http://www.petri.co.il/sender_policy_framework.htm
* SPF Council (SPF ±â¼ú, Ç¥ÁØ¿¡ ´ëÇØ ³íÀÇ)
http://spf.mehnle.net/Home_Page
* SPF Å×½ºÆ®
http://www.schlitt.net/spf/tests/
* Domain Registrars and DNS Providers that Support SPF
http://www.kitterman.com/spf/txt.html
* sendmail¿¡¼ SPF¸¦ À§ÇÑ ¼³Á¤(Milter-SPF ¼³Ä¡ ¹æ¹ý)
http://spf.pobox.com/sendmail-milter-INSTALL.txt
http://www.brandonhutchinson.com/Installing_Milter-SPF_with_Sendmail.html
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ƯÁ¤ ¾Èµå·ÎÀ̵å WebView ¹öÀü¿¡¼ SSL ¹®Á¦ (WebView ¹ö±×)
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(ÁÖ)ÈÄÀÌÁî ½Ã½ºÅÛ¿£Áö´Ï¾î (°æ·ÂÀÚ) ¸ðÁý
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Mobile Service/eCommerce ±â¾÷¿¡¼ Server / Java / PHP °³¹ßÀÚ ±¸ÀÎ
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źźÇÑ ÆÛºí¸®½Ì ¸ð¹ÙÀϱâ¾÷¿¡¼ Mobile °³¹ßÀÚ¸¦ ¸ð½Ê´Ï´Ù.
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źźÇÑ ÆÛºí¸®½Ì ¸ð¹ÙÀϱâ¾÷¿¡¼ Web Front °³¹ßÀÚ¸¦ ¸ð½Ê´Ï´Ù.
N
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KiCad EDA Suite project (Free/Libre/Open-Source EDA Suite) (CAD)
¿ÀÇÂij½ºÄÉÀ̵å ijµå (OpenCASCADE CAD)
QCad for Windows --- GNU GPL (Free Software)
The Hello World Collection
IPMI¸¦ È°¿ëÇÑ ¸®´ª½º ¼¹ö°ü¸®
DNS ¼³Á¤ °Ë»ç
nagiosgraph ¼³Ä¡ ¹æ¹ý
Slony-I ¼³Ä¡ ¹æ¹ý (postgresql replication tool)
Qmail±â¹ÝÀÇ Anti spam ½Ã½ºÅÛ ±¸ÃàÇϱâ
clusterssh
[ ÇÔ²²ÇÏ´Â »çÀÌÆ® ]
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ÁÁÀºÁøÈ£(truefeel)
, ¾ß¼ö(yasu), ¹ü³ÃÀÌ, sCag
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