DRACÀ̶õ?
DRACÀº Dynamic Relay Authorization Control ¾à¾î·Î sendmailÀ» À§ÇÑ ¸±·¹ÀÌ
Çã¿ë¸ÊÀ» µ¿ÀûÀ¸·Î °»½ÅÇÏ´Â µ¥¸óÀÌ´Ù. ¼±ÀÇÀÇ »ç¿ëÀÚ°¡ SMTP ¼¹ö¿¡ Á¢±ÙÇÒ ¼ö
ÀÖµµ·Ï ¸¸µé¸é¼µµ ½ºÆÐ¸Ó Á¢±ÙÀº Â÷´ÜÇϴ Ư¡ÀÌ ÀÖ´Ù.
¿ø¸®´Â ´Ü¼øÇÏ´Ù. »ç¿ëÀÚ°¡ POP3³ª IMAPÀ¸·Î Á¢±ÙÇÒ ¶§ »ç¿ëÀÚ IP¸¦ ¸Ê¿¡ µ¿ÀûÀ¸·Î
ÇÒ´çÇسõ°í ÇâÈÄ SMTP ¼ºñ½º ¿äûÀÌ µé¾î¿Ã ¶§ ÀÌ IP°¡ Á÷Àü ÀÎÁõ¹ÞÀº IPÀÎÁö
È®ÀÎÇÏ´Â °úÁ¤À» ¹â´Â´Ù.
DRACÀº ³ëÆ®ºÏÀ» µé°í À̸®Àú¸® ¿Å°Ü´Ù´Ï´Â(roaming) »ç¿ëÀÚ¿¡°Ô Àý´ëÀûÀ¸·Î ÇÊ¿äÇÑ
¼ºñ½º´Ù. POPÀ¸·Î ÀÎÁõ¹ÞÀº Á÷ÈÄ 30ºÐÀÌ ¸±·¹À̸¦ Çã¿ëÇÏ´Â ÀÓ°è ½Ã°¢ÀÌÁö¸¸
°è¼ÓÇؼ °»½ÅÀÌ °¡´ÉÇÏ´Ù. POP ¼¹ö´Â ÆíÁö¸¦ üũÇϱâ À§ÇØ ÁÖ±âÀûÀ¸·Î ÀÌ·¯ÇÑ
°»½Å °úÁ¤À» ÀÚµ¿À¸·Î ¹âÀ¸¹Ç·Î ½ÇÀü¿¡¼ ºÒÆíÀ» ´À³¢Áö ¾Ê°í »ç¿ëÇϱ⿡ Ưº°ÇÑ
¹®Á¦´Â ¾ø´Ù.
¸¸ÀÏ ¹Ý¿µ±¸ÀûÀ¸·Î ƯÁ¤ IP ÁÖ¼Ò¿¡ ´ëÇÑ ¸±·¹À̸¦ Çã¿ëÇÏ·Á¸é È¿À²À» ³ôÀ̱â À§ÇØ
sendmail¿¡¼ Á¦°øÇÏ´Â ¸±·¹ÀÌ Çã¿ë ±â¹ýÀ» »ç¿ëÇÏÀÚ.
ÀÚ ±×·¯¸é ÀÌÁ¦ º»°ÝÀûÀÎ DRAC ŽÇè¿¡ µé¾î°¡ÀÚ.
DRAC ¼³Ä¡ ¹æ¹ý
DRAC ¼³Ä¡¸¦ À§ÇØ ´ÙÀ½ ÀýÂ÷¸¦ µû¸¥´Ù.
DRAC ÆÐÅ°Áö ±¸Çϱâ
DRAC ÃֽŠ¹öÀüÀº 1.11À̸ç
¾ÐÃàµÈ tarball ÆÄÀÏ·Î
Á¸ÀçÇÑ´Ù. RPMÀ» °¡Á®¿Ã °æ¿ì¿¡´Â sendmail¿¡¼ »ç¿ëÇÏ´Â ¹öŬ¸® DB ¶óÀ̺귯¸®
¹öÀü°ú µ¿ÀÏÇÑÁö ¹Ýµå½Ã üũÇØ¾ß ÇÑ´Ù(ÈùÆ®: ldd ¸í·É). tarballÀ» °¡Á®¿Ã °æ¿ì
DRAC Å©±â´Â ¾ó¸¶µÇÁö ¾ÊÁö¸¸ ºÎ°¡ÀûÀ¸·Î ÇÊ¿äÇÑ ¶óÀ̺귯¸®°¡ Á¸ÀçÇϹǷΠÄÄÆÄÀÏ
Àü¿¡ ´ÙÀ½ »çÇ×À» üũÇÑ´Ù.
- ¹öŬ¸® DB: ¹öÀüÀº 1.85 ÀÌ»óÀÌ¸é µÇÁö¸¸, ¹Ýµå½Ã sendmailÀÌ
»ç¿ëÇÏ´Â ¹öÀü°ú ÀÏÄ¡ÇØ¾ß ÇÑ´Ù. ±×·¸Áö ¾ÊÀ¸¸é ÀÏ´ë Àç¾ÓÀÌ... °¡Àå ÃÖ½Å
¹öÀüÀº 3.2.9ÀÌ´Ù.
¹öŬ¸® DB ¼³Ä¡¹ýÀº Sendmail
& POP3 Pages¿¡ ÀÖ´Â sendmail ¼³Ä¡ °¡À̵带 ÂüÁ¶ÇÏÀÚ.
- sendmail MTA: ¹öÀüÀº 8.9.x ÀÌ»óÀÌ¸é µÇÁö¸¸, µÇµµ·Ï ÃֽŠ¹öÀüÀ» »ç¿ëÇϱâ
¹Ù¶õ´Ù. µÇµµ·ÏÀ̸é 8.11.x °è¿À» ¼³Ä¡ÇÏÀÚ. sendmail ¼³Ä¡¹ýÀº
Sendmail & POP3 Pages¸¦
ÂüÁ¶Çϱ⠹ٶõ´Ù.
- qpopper: qpopper´Â 3.0.x ¹öÀüºÎÅÍ DRACÀ» Áö¿øÇÏ°í ÀÖ´Ù. µû¶ó¼ 3.0 ÀÌÀü
¹öÀüÀ» »ç¿ëÇÏ´Â ºÐµéÀº À̹ø ±âȸ¿¡ Æǿø²ÇÏÀÚ. qpopper ¼³Ä¡¹ýÀº ¸¶Âù°¡Áö·Î
Sendmail & POP3 Pages¸¦
ÂüÁ¶Çϱ⠹ٶõ´Ù. Áö±ØÈ÷ ´ç¿¬ÇÑ À̾߱â°ÚÁö¸¸, DRAC ¼³Ä¡ ÈÄ¿¡ qpopper¸¦
ÄÄÆÄÀÏÇÑ´Ù.
- portmap: ´«Ä¡ ºü¸¥ »ç¶÷À̶ó¸é ¾Ë°ÚÁö¸¸ DRACÀº RPC¸¦ »ç¿ëÇؼ POP°ú IMAP
¼¹ö¿Í Åë½ÅÇÑ´Ù. µû¶ó¼ ¹Ýµå½Ã portmapÀ» µ¹¸°´Ù.
¸®´ª½º¶ó¸é chkconfig ¸í·ÉÀ¸·Î portmapÀÌ Á¦´ë·Î µ¿ÀÛÇÏ°í ÀÖ´ÂÁö È®ÀÎÇϱâ
¹Ù¶õ´Ù. ÀÏ¹Ý À¯´Ð½º »ç¿ëÀÚ¶ó¸é ps ¸í·ÉÀ¸·Î portmap ÇÁ·Î¼¼½º°¡ ¶° ÀÖ´ÂÁö
»ìÆ캻´Ù. ÀÌ·¸°Ô Ŭ¶óÀ̾ðÆ® ¼¹ö·Î ¿òÁ÷À̹ǷΠDRAC ¼¹ö¿Í POP ¼¹ö°¡
°°Àº È£½ºÆ®¿¡ ÀÖÀ» ÇÊ¿ä´Â ¾ø´Ù. ÇÏÁö¸¸ POP ¼¹ö¿Í´Â ´Þ¸® DRAC ¼¹ö´Â ¹Ýµå½Ã
sendmailÀÌ µ¿ÀÛÇϴ ȣ½ºÆ®¿¡ ÀÖ¾î¾ß ÇÑ´Ù. ±× ÀÌÀ¯´Â ¸Ê ÆÄÀÏ »ý¼º ¶§¹®ÀÌ´Ù. RPC¸¦
Áö¿øÇÏ´Â ´ëºÎºÐ ¿î¿µÃ¼Á¦´Â portmapÀ» ±âº»À¸·Î ÀåÂøÇÏ°í Àֱ⿡ ½Ãµ¿ À¯¹«¸¸
µûÁ®Áֱ⠹ٶõ´Ù.
DRAC ÄÄÆÄÀÏ
DRAC´Â sendmail°ú qpopper¿Í ºñ±³ÇÏ¿© ¾ÆÁÖ ÀÛÀº ÆÐÅ°ÁöÀ̹ǷΠconfigure ½ºÅ©¸³Æ®°¡
¾ø´Ù. ÀÌ ¸»Àº ÇÊ¿äÇÑ È¯°æ ¼³Á¤À» ¸ðµÎ ÀÚ½ÅÀÌ ÇØ¾ß ÇÑ´Ù´Â(DIY, Do It Yourself)
»ç½ÇÀ» ÀǹÌÇÑ´Ù. Àý¸ÁÀûÀΰ¡? ÇÏÁö¸¸ ´ÙÇàÈ÷µµ ÄÄÆÄÀÏÀ» À§ÇÑ ¼³Á¤ÀÌ Å©°Ô
¾î·ÆÁö¾Ê´Ù.
drac.tar.Z¸¦ Ǭ ´ÙÀ½¿¡ MakefileÀ» ¼öÁ¤Çغ¸ÀÚ. drac.tar.Z¸¦ Ç®¸é º°µµ µð·ºÅ丮¸¦
¸¸µéÁö ¾Ê°í ÇöÀç µð·ºÅ丮¿¡ ¸ðµç ÆÄÀÏÀ» Ç®¾î¹ö¸®¹Ç·Î dracÀ̶ó´Â µð·ºÅ丮¸¦
¸¸µç ´ÙÀ½ ¿©±â¿¡ Ç®¸é ±ú²ýÇÑ µð·ºÅ丮 ±¸Á¶¸¦ À¯ÁöÇÒ ¼ö ÀÖ´Ù.
MakefileÀ» ¿¾î¼ ¸î¸î ¸¶Å©·Î¸¦ ¼öÁ¤ÇÑ´Ù. ¸®´ª½º¶ó¸é ´ÙÀ½°ú °°ÀÌ
°íÄ¡¸é ¹®Á¦ ¾øÀ» °ÍÀÌ´Ù. ¹öŬ¸® DB ¼³Ä¡ À§Ä¡¿¡ µû¶ó CFLAGS¿Í LDLIBS Ç׸ñÀ»
ÀûÀýÈ÷ ¼öÁ¤Çϱ⠹ٶõ´Ù. ´Ù¸¥ ¿î¿µÃ¼Á¦¸¦ »ç¿ëÇÑ´Ù¸é DRAC ÆÐÅ°Áö ¾Æ·¡ INSTALL
ÆÄÀÏÀ» Âü°íÇÏ¿© °¢ÀÚ È¯°æ¿¡ ¸Â°Ô ¼³Á¤ÇÑ´Ù.
INSTALL = install
EBIN = /usr/local/sbin
MAN = /usr/local/man/man
DEFS = -DSOCK_RPC -DFCNTL_LOCK -DGETHOST -DDASH_C
CC = gcc
RANLIB = :
CFLAGS = $(DEFS) -g -I/usr/local/BerkeleyDB/include
LDLIBS = -L/usr/local/BerkeleyDB/lib -ldb
TSTLIBS = -L. -ldrac
RPCGENFLAGS = -C -I
MANLIB = 3
MANADM = 8
ÀÌÁ¦ ÀüÇüÀûÀÎ make, make install °úÁ¤À» ¹â´Â´Ù. ¸Þ´º¾óÀÌ ÇÊ¿äÇϸé
make install-man °úÁ¤À» ¹â±â ¹Ù¶õ´Ù.
DRAC ȯ°æ ¼³Á¤
DRAC ¼³Ä¡±îÁö ³¡³µ´Ù¸é °¢ÀÚ »óȲ¿¡ ¸Â°Ô ¸î°¡Áö ȯ°æ ¼³Á¤ ÀÛ¾÷À» ¼öÇàÇÑ´Ù.
DRAC°ú Á÷Á¢ °ü·ÃÀÌ ¾ø´õ¶óµµ º¸¾ÈÀ» À§ÇØ ÇÊ¿äÇÑ ÀÛ¾÷µµ ÀÖÀ¸¹Ç·Î »óȲÀ»
Àß ÆÇ´ÜÇÏ¿© Àû¿ëÇϱ⠹ٶõ´Ù.
POP¼¹ö¿Í DRAC ¼¹ö°¡ ¶³¾îÁ®ÀÖÀ» °æ¿ì /etc/mail/dracd.allow ÆÄÀÏÀ» ¸¸µé°í
ÀÌ ÆÄÀÏ¿¡ /var/yp/securenets ÆÄÀÏ°ú À¯»çÇÑ Çü½ÄÀ¸·Î Çã¿ë IP ¹üÀ§¸¦
ÁöÁ¤ÇÑ´Ù. ¿¹´Â ´ÙÀ½°ú °°´Ù.
255.255.255.252 192.168.16.0
255.255.255.255 192.168.16.8
255.255.255.255 127.0.0.1
192.168.16.0¿¡¼ 8¹ø±îÁö Çã¿ëÇÑ´Ù. localhostÀÎ 127.0.0.1À» Ãß°¡ÇÑ »ç½Ç¿¡
ÁÖ¸ñÇϱ⠹ٶõ´Ù. dracd¿Í´Â ´Þ¸® portmapÀº /etc/hosts.allow¸¦ »ç¿ëÇÏ°í ÀÖÀ¸¹Ç·Î,
À̸¦ »ç¿ëÇؼ Á¢±ÙÀ» ¿¾îÁÙ IP ÁÖ¼Ò¸¦ Á¦¾îÇÒ ¼öµµ ÀÖ´Ù(¿©·¯ºÐÀÌ »ç¿ëÇÏ°í ÀÖ´Â
¿î¿µÃ¼Á¦´Â hosts.allow ±â´ÉÀ» Á¦°øÇÏÁö ¾ÊÀ» ¼öµµ ÀÖ´Ù).
portmap: 192.168.16.0/255.255.255.16
DRACÀ» Áö¿øÇϵµ·Ï qpopper¸¦ ÄÄÆÄÀÏÇß´Ù¸é, ¼³Ä¡ ÈÄ xinetd.d ¾Æ·¡ pop3³ª
inetd.conf¸¦ ¿¾î¼ qpopper Àμö¿¡ -D DRAC_host_ip ¸¦ Ãß°¡ÇÑ´Ù.
-D ¿É¼Ç ±âº»°ªÀº localhostÀ̹ǷΠDRAC°ú POP ¼¹ö°¡ °°Àº ±â°è¿¡ ÀÖ´Ù¸é
Ãß°¡ÇÒ ÇÊ¿ä°¡ ¾ø´Ù. ´ëºÎºÐ °°Àº ±â°è¿¡ Á¸ÀçÇÒ °¡´É¼ºÀÌ ³ôÀ¸¹Ç·Î ±×³É ³Ñ¾î°¡µµ
¹«¹æÇÏ´Ù.
DRAC ½Ãµ¿
µåµð¾î DRAC¸¦ ½Ãµ¿ÇÒ ½ÃÁ¡ÀÌ ¿Ô´Ù. ¸ÕÀú portmapÀÌ ¶° ÀÖÁö ¾ÊÀ¸¸é portmapÀ»
¶ç¿î´Ù. ´ÙÀ½À¸·Î DRACÀ» ½Ãµ¿ÇÒ ½ºÅ©¸³Æ®¸¦ ÀûÀýÇÑ À§Ä¡¿¡ °¡Á®´Ù ³õ´Â´Ù.
¿î¿µÃ¼Á¦¸¶´Ù ºÎÆà ÀýÂ÷°¡ ´Ù¸£¹Ç·Î ¸Þ´º¾óÀ» Âü°íÇÑ´Ù. ¸®´ª½º¶ó¸é
drac ÆÐÅ°Áö µð·ºÅ丮¿¡ ÀÖ´Â dracd-setup.linux¸¦
/etc/rc.d/init.d/dracd¶ó´Â À̸§À¸·Î º¹»çÇÑ´Ù. ±×¸®°í ½ÇÇà ´Ü°è 3¿¡¼
¼öÇàÇÒ ¼ö ÀÖµµ·Ï ln -s /etc/rc.d/init.d/dracd /etc/rc.d/rc3.d/S99dracd ¸í·ÉÀ»
³»¸°´Ù.
ÁÖÀÇ: ¿©±â¼ dracd-setup.linux¿¡ PATH°¡ °É·ÁÀÖÁö ¾ÊÀ¸¹Ç·Î
/etc/rc.d/init.d/dracd ÆÄÀÏ Ã¹ºÎºÐ¿¡
PATH=/usr/local/sbin:/sbin:/bin:/usr/bin:/usr/sbin¸¦ Ãß°¡Çϱ⠹ٶõ´Ù.
Áغñ°¡ ³¡³µÀ¸¸é ½Ã½ºÅÛ °ü¸®ÀÚ ±ÇÇÑÀ¸·Î /etc/rc.d/rc3.d/S99dracd ¸í·ÉÀ»
½ÇÇàÇÑ´Ù. OK°¡ ³ª¿À´Â°¡?
DRAC Å×½ºÆ®
ÀÌÁ¦ DRAC°ú °ü·ÃÇÑ È¯°æÀ» Á¦´ë·Î Àâ¾Ò´Ù¸é DRAC Å×½ºÆ®¿¡ µé¾î°¡ÀÚ.
DRAC ÀÚü Å×½ºÆ®
ÀÌ»óÀÇ °úÁ¤À» ¸¶ÃÆ´Ù¸é DRAC µ¥¸óÀÌ Á¦´ë·Î µ¿ÀÛÇÏ´ÂÁö È®ÀÎÇÏ´Â °úÁ¤À» ¹â´Â´Ù.
°¡Àå ¸ÕÀú /etc/mail/dracd.db ÆÄÀÏÀÌ »ý°å´ÂÁö È®ÀÎÇÑ´Ù.
¸¸ÀÏ ÀÌ ÆÄÀÏÀÌ »ý±âÁö ¾Ê¾Ò´Ù¸é dracd°¡ ¶° ÀÖ´ÂÁö(Áß°£¿¡ Á×Áö´Â ¾Ê¾Ò´ÂÁö)
»ìÆì¾ß ÇÑ´Ù.
POP3 ¿¬µ¿ Å×½ºÆ®
DRACÀÌ µ¿ÀÛÇÑ´Ù´Â »ç½ÇÀ» È®ÀÎÇß´Ù. ±×·¸´Ù¸é À̹ø¿¡´Â POP3 ¿¬µ¿ Å×½ºÆ®¸¦ ÇÒ
Â÷·ÊÀÌ´Ù. ´ÙÀ½°ú °°Àº ¹æ¹ýÀ¸·Î Å×½ºÆ®ÇÏÀÚ.
[root@mail /etc/mail]# telnet localhost pop3
Trying 127.0.0.1...
Connected to localhost.
Escape character is '^]'.
+OK QPOP (version 4.0.3) at mail.my.net starting.
user foo
+OK Password required for foo.
pass bar
+OK foo has 0 visible messages (0 hidden) in 0 octets.
quit
+OK Pop server at mail.my.net signing off.
¿©±â¼ º¯°æÇØ¾ß ÇÒ ³»¿ªÀº user foo, pass bar, quit ¼¼ ÇàÀÌ´Ù. foo ´ë½Å ¿©·¯ºÐ
°èÁ¤À» bar ´ë½Å foo °èÁ¤ ¾ÏÈ£¸¦ ÀÔ·ÂÇØ¾ß ÇÑ´Ù. ÀÌ»óÀÇ °úÁ¤À» ¹â¾Ò´Ù¸é
/etc/mail/dracd.db ÆÄÀÏ ³¯Â¥¸¦ È®ÀÎÇؼ qpopper µ¥¸ó¿¡ Á¢¼ÓÇÑ ½Ã°¢°ú
ÀÏÄ¡ÇÏ´ÂÁö ºñ±³ÇÑ´Ù. ½Ã°¢°ú ÀÏÄ¡ÇÏ¸é ´ÙÀ½°ú °°Àº grep ¸í·ÉÀ¸·Î Áö¿ª
È£½ºÆ®(127.0.0.1)°¡ ÀâÈ÷´ÂÁö »ìÆ캻´Ù.
[root@mail /etc/mail]# grep 127.0.0.1 dracd.db
Binary file dracd.db matches
¿©±â±îÁö ¹«»çÈ÷ µû¶ó¿Ô´Ù¸é DRAC ¼³Ä¡°¡ ¼º°ø¸®¿¡ ³¡³µ´Ù°í º¼ ¼ö ÀÖ´Ù. ÇÏÁö¸¸,
¿©ÀüÈ÷ Å« »êÀÌ Çϳª ³²¾ÆÀÖ´Ù.
DRACÀ» À§ÇÑ sendmail ¼³Á¤
ÀÌÁ¦ DRAC ¼³Ä¡¿¡¼ °¡Àå ±î´Ù·Î¿î °ÀûÀ» »ó´ë·Î ÇÑÆÇ ½ÂºÎ¸¦ ¹ú¿©¾ß ÇÑ´Ù.
¹Ù·Î DRAC°ú ¿¬µ¿Çϱâ À§ÇÑ sendmail ¼³Á¤ÀÌ´Ù. sendmail.cf ¾Ç¸íÀº ÀÍÈ÷ ¾Ë·ÁÁ®
ÀÖ´Ù. ÀÌ ÆÄÀÏÀ» º¯°æÇϱâ À§ÇÑ ¿©·¯°¡Áö ¹æ¹ýÀÌ Á¸ÀçÇÏÁö¸¸ ¿©±â¼´Â ¼öµ¿À¸·Î
°íÄ¡´Â ¹æ¹ýÀ» ¼Ò°³ÇÏ°Ú´Ù.
¸ÕÀú sendmail.cf¸¦ ¹é¾÷¹ÞÀÚ. sendmail.cf À§Ä¡´Â /etc/, /etc/mail/À»
»ìÆ캸±â ¹Ù¶õ´Ù.
sendmail.cf¸¦ ¿¾î¼ local info: ¾Æ·¡ Àû´çÇÑ À§Ä¡¿¡ ´ÙÀ½ ÇàÀ» ³Ö´Â´Ù.
# dynamic relay authorization control map
Kdrac btree /etc/mail/dracd
±×¸®°í SLocal_check_rcpt ¹Ù·Î ¾Æ·¡¿¡ ´ÙÀ½ ÇàÀ» Ãß°¡ÇÑ´Ù. Áß°£ ¿©¹éÀº ¹Ýµå½Ã
ÅÇÀ¸·Î ±³Ã¼ÇØ¾ß ÇÑ´Ù. ÀÌ »ç½ÇÀ» ¸Á°¢ÇÏ´Â ¼ø°£ ºí·¢È¦¿¡ ºüÁúÁöµµ ¸ð¸¥´Ù.
# allow recent POP/IMAP mail clients to relay
R$* $: $&{client_addr}
R$+ $: $(drac $1 $: ? $)
R? $@ ?
R$+ $@ $#OK
ÅëÇÕ Å×½ºÆ®
Çè³ÇÑ °úÁ¤À» °ÅÃÄ ¿©±â±îÁö ¿Ô´Ù¸é ½Ã°£À» Á¦¹ý ¸¹ÀÌ ¼ÒºñÇßÀ» °ÍÀÌ´Ù. Ä¿ÇÇÀÜÀÌ
¿©±âÀú±â ¾þ¾îÁ® ÀÖ°í, ¸Ô´Ù ³²Àº ÇÇÀÚ Á¶°¢µµ ÄÄÇ»ÅÍ Ã¥»ó ÁÖÀ§¿¡ Èð¾îÁ® ÀÖÀ»Áöµµ
¸ð¸£°Ú´Ù. ÀÌÁ¦ ÅëÇÕ Å×½ºÆ® °úÁ¤¸¸ ³Ñ±â¸é Ç« ½¯ ¼ö ÀÖ´Ù. Á¶±Ý¸¸ ´õ Èû³»ÀÚ.
ÅëÇÕ Å×½ºÆ®¿¡ ¾Õ¼ sendmail µ¥¸óÀ» ´Ù½Ã ¶ç¿ìÀÚ. killall ¸í·ÉÀÌ ¾øÀ¸¸é ps
¸í·ÉÀ¸·Î ÇÁ·Î¼¼½º ID¸¦ È®ÀÎÇÑ ´ÙÀ½ kill ¸í·ÉÀ» »ç¿ëÇϱ⠹ٶõ´Ù.
[root@mail /etc/mail]# killall sendmail
[root@mail /etc/mail]# sendmail -q30m -bd
ÀÌÁ¦ relay¸¦ Çã¿ëÇÏÁö ¾ÊÀº È£½ºÆ® Çϳª¸¦ ¼³Á¤Çؼ ÀÌ °÷¿¡¼ telnetÀ¸·Î
DRAC+sendmail+qpopper°¡ µ¿ÀÛÇϴ ȣ½ºÆ®·Î ÀüÀÚÆíÁö ¿äûÀ» ½ÃµµÇغ»´Ù.
- relay¸¦ Çã¿ëÇÏÁö ¾ÊÀº È£½ºÆ®¿¡¼ smtp ¿äûÀ» ½ÃµµÇÑ´Ù. "Relaying denied"¶ó´Â
¹®±¸°¡ ³ª¿Í¾ß ÇÑ´Ù.
% telnet mail.my.net 25
Trying 192.168.1.1...
Connected to mail.my.net.
Escape character is '^]'.
220 mail.my.net ESMTP Sendmail 8.11.0/8.11.0; Tue, 21 Nov 2000 10:56:01 -0600
helo blah
250 mail.my.net Hello bofh [192.168.1.2], pleased to meet you
mail from: bgates@microsoft.com
250 2.1.0 bgates@microsoft.com... Sender ok
rcpt to: president@whitehouse.gov
550 5.7.1 president@whitehouse.gov... Relaying denied
quit
221 2.0.0 mail.my.net closing connection
- ÀÌÁ¦ POP3 ¿äûÀ¸·Î DRAC ¸ÊÀ» ¸¸µç´Ù.
# telnet mail.my.net 110
Trying 192.168.1.1...
Connected to mail.my.net.
Escape character is '^]'.
+OK QPOP (version 4.0.3) at mail.my.net starting.
user foo
+OK Password required for foo.
pass bar
+OK foo has 0 visible messages (0 hidden) in 0 octets.
quit
+OK Pop server at mail.my.net signing off.
- ´Ù½Ã Çѹø smtp ¿äûÀ» ½ÃµµÇغ»´Ù. ¾Õ¼ ½Ãµµ¿Í´Â ´Þ¸® ¸±·¹À̸¦ Çã¿ëÇÔÀ»
È®ÀÎÇÒ ¼ö ÀÖ´Ù.
[root@bofh /root]# telnet mail.my.net 25
Trying 192.168.1.1...
Connected to mail.my.net.
Escape character is '^]'.
220 mail.my.net ESMTP Sendmail 8.11.0/8.11.0; Tue, 21 Nov 2000 10:56:01 -0600
helo blah
250 mail.my.net Hello bofh [192.168.1.2], pleased to meet you
mail from: bgates@microsoft.com
250 2.1.0 bgates@microsoft.com... Sender ok
rcpt to: president@whitehouse.gov
250 2.1.5 president@whitehouse.gov... Recipient ok
quit
221 2.0.0 mail.my.net closing connection
¿©±â±îÁö ¹«»çÈ÷ ¿Ô´Ù¸é Á¤¸» ÃàÇÏÇÑ´Ù. ÀÌ»óÀ¸·Î »óȲ Á¾·áÀÌ´Ù.
Trouble Shooting
µ¶ÀÚ ¿©·¯ºÐÀÌ Áú¹®ÇÏ´Â ³»¿ë¿¡ µû¶ó ÃßÈÄ ³»¿ëÀ» º¸°Çϱâ·Î ¾à¼ÓÇÑ´Ù. ÀÏ´Ü
¹®Á¦°¡ »ý±â¸é ´ÙÀ½ »çÇ×À» ¸ÕÀú °ËÅäÇغ¸±â ¹Ù¶õ´Ù.
°¢Á¾ µ¥¸óÀÌ ¸ðµÎ Á¦´ë·Î ¶° Àִ°¡?
DRAC, qpopper, sendmailÀÌ Á¦´ë·Î µ¿ÀÛÇÏ°í ÀÖ´ÂÁö È®ÀÎÇϱ⠹ٶõ´Ù. ps ¸í·ÉÀ¸·Î
DRAC°ú sendmailÀ» È®ÀÎÇÒ ¼ö ÀÖÀ¸¸ç, telnet ¸í·ÉÀ¸·Î qpopper¿Í sendmail µ¿ÀÛÀ»
È®ÀÎÇÒ ¼ö ÀÖ´Ù.
Á¤¸» Á¦´ë·Î DRAC ¸ÊÀÌ ¸¸µé¾î Á³´Â°¡?
DRAC, qpopper, sendmailÀÌ ¸ðµÎ µ¿ÀÛÇÏ°í ÀÖ´Ù. ±×·¸´Ù°í DRAC ¸ÊÀÌ Á¦´ë·Î
µ¿ÀÛÇÏ°í ÀÖ´Ù´Â º¸ÀåÀº ÇÏÁö ¸øÇÑ´Ù. ±×·¸´Ù¸é ¾î¶»°Ô °Ë»çÇÒ±î? ´ÙÀ½ ¹æ¹ýÀ»
Çѹø »ý°¢Çغ¸±â ¹Ù¶õ´Ù.
[root@bofh /root]# /usr/lib/sendmail -bt
ADDRESS TEST MODE (ruleset 3 NOT automatically invoked)
Enter <ruleset> <address>
> /map drac 192.168.1.2
map_lookup: drac (192.168.1.2) returns 963532780 (0)
¿©±â¼ no match°¡ ³ª¿À¸é ÇØ´ç ¸ÊÀÌ ¾ø´Ù´Â °á·ÐÀ» ³»¸± ¼ö ÀÖ´Ù. qpopper¿¡¼
¸ÊÀ» À߸ø ¸¸µå´ÂÁö sendmailÀÌ ¸ÊÀ» À߸ø ÀдÂÁö È®ÀÎ ÀÛ¾÷¿¡ ³ª¼±â ¹Ù¶õ´Ù.
¹öŬ¸® DB 2.x °è¿À» »ç¿ëÇÑ´Ù¸é db_dump ¸í·ÉÀ» »ç¿ëÇϸé DRAC ¸ÊÀ» Á÷Á¢ ÀÐÀ»
¼ö ÀÖ´Ù. ´ÙÀ½°ú °°ÀÌ ¸í·ÉÀ» ³»·Áº¸ÀÚ.
[root@bofh /root]# db_dump -p /etc/mail/dracd.db
¿©±â¼ ¸ÊÀ» Á¦´ë·Î Ãâ·ÂÇϸé sendmail ÂÊ¿¡ ¹®Á¦°¡ ÀÖ´Ù´Â À̾߱âÀÌ´Ù. ±×·¸Áö
¾Ê´Ù¸é qpopper¸¦ ÀǽÉÇØ¾ß ÇÑ´Ù.
DRACÀÌ Á¦´ë·Î µ¿ÀÛÇϴ°¡?
qpopper°¡ Á¦´ë·Î µ¿ÀÛÇÏ´ÂÁö ±×·¸Áö ¾ÊÀºÁö¸¦ ½ÃÇèÇÏ´Â ºñ¿ëº¸´Ù DRACÀÌ Á¦´ë·Î
µ¿ÀÛÇÏ´ÂÁö ±×·¸Áö ¾ÊÀºÁö¸¦ ½ÃÇèÇÏ´Â ºñ¿ëÀÌ ÈξÀ ½Î´Ù. ´ÙÀ½°ú °°Àº ¸í·ÉÀ»
Çѹø ³»·Áº¸ÀÚ.
[root@bofh /root]# ./testing localhost 192.168.1.2
testing ÇÁ·Î±×·¥Àº DRAC ÆÐÅ°Áö¸¦ ÄÄÆÄÀÏÇÑ µð·ºÅ丮¿¡¼ ãÀ» ¼ö ÀÖ´Ù.
»ó±â ¸í·ÉÀ» ³»¸° Á÷ÈÄ ¸ÊÀ» Çѹø °Ë»çÇغ¸±â ¹Ù¶õ´Ù. ¸Ê¿¡ 192.168.1.2°¡ ¾øÀ¸¸é,
DRAC¿¡ ¹®Á¦°¡ »ý°å´Ù°í È®½ÅÇÒ ¼ö ÀÖ´Ù.
qpopper°¡ Á¦´ë·Î µ¿ÀÛÇϴ°¡?
ÄÄÆÄÀÏ À߸øµîÀ¸·Î ÀÎÇØ qpopper°¡ Á¦´ë·Î µ¿ÀÛÇÏÁö ¾ÊÀ» ¼ö ÀÖ´Ù. ·Î±× ÆÄÀϵîÀ»
µÚÁ®¼(ÈùÆ®: ·Î±× ´Ü°è¸¦ ¿Ã¸®¸é º¸´Ù ¼¼ºÎÀûÀÎ Á¤º¸¸¦ ¾òÀ» ¼ö ÀÖ´Ù) ¹«¾ùÀÌ
¹®Á¦ÀÎÁö Æľǿ¡ ³ª¼±â ¹Ù¶õ´Ù.
sendmailÀÌ Á¦´ë·Î µ¿ÀÛÇϴ°¡?
ÂüÀ¸·Î ¾î·Á¿î ¹®Á¦ÀÌ´Ù. Âü°í URL¿¡ Á¦½ÃÇÑ "Debugging check_* in sendmail 8.8/8.9"¸¦
ÂüÁ¶ÇÏ¿© ÇØ°á¿¡ ³ª¼±â ¹Ù¶õ´Ù.
Âü°í URL
ÀÌ ±ÛÀ» Àû´Âµ¥ Âü°íÇÑ URLÀº ´ÙÀ½°ú °°´Ù.
±âŸ
- ÀÌ ¹®¼ÀÇ ÀúÀ۱ǰú ¶óÀ̼±½º ¹æ½ÄÀº
»ï¹Ù ¼³Ä¡ ¹× È°¿ë °¡À̵忡 ÁØÇÑ´Ù.
- Àǹ® »çÇ×ÀÌ »ý±æ °æ¿ì ÀüÀÚÆíÁö¸¦ »ç¿ëÇÏ¿© Áú¹®Çϸé feedbackÀ» ¹ÞÀ»
¼ö ÀÖÀ» °ÍÀÌ´Ù.
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