¾Æ·¡¿Í°°ÀÌ ´Ù½ÃÇѹø ¼³Á¤ ÇÐÀÎÇÏ¿©º¸½ÉÀÌ
±èÄ¥ºÀ¾¾ ±Û ¹ßÃë
/etc/services ÆÄÀÏÀ» ´ÙÀ½°ú °°ÀÌ ÆíÁýÇÑ´Ù.
-----------------------------------------------------------
#pop-2 109/tcp postoffice # POP version 2
#pop-2 109/udp
#pop-3 110/tcp # POP version 3
#pop-3 110/udp
pop3 110/tcp # popper
-----------------------------------------------------------
Âü°í·Î,
pop3 110/tcp pop-3 # POP3
¿Í °°ÀÌ ¼³Á¤ÇßÀ» °æ¿ì ¿À¸¥ÂÊÀÇ "pop-3"Àº ¿ÞÂÊÀÇ "pop3" ¼ºñ½º
À̸§¿¡ ´ëÇÑ
º°ÄªÀ̸§ÀÌ´Ù.
µû¶ó¼ ´ÙÀ½°ú °°ÀÌ ¸ðµÎ Á¢¼ÓÇÒ ¼ö ÀÖ´Ù.
[root@www san2]# telnet localhost 110
[root@www san2]# telnet localhost pop3
[root@www san2]# telnet localhost pop-3
/etc/inetd.conf ÆÄÀϵµ ´ÙÀ½°ú °°ÀÌ ÆíÁýÇÑ´Ù.
-----------------------------------------------------------
#pop-2 stream tcp nowait root /usr/sbin/tcpd ipop2d
#pop-3 stream tcp nowait root /usr/sbin/tcpd ipop3d
pop3 stream tcp nowait root /usr/local/lib/popper popper -s
-----------------------------------------------------------
Âü°í·Î, Æ÷Æ® ¹øÈ£°¡ 1024 º¸´Ù ÀÛÀº Æ÷Æ®´Â ¿ÀÁ÷ root ·¹º§¿¡¼¸¸ Á¢±ÙÇÒ ¼ö
ÀÖ´Ù. ÀÌ Æ÷Æ®¸¦ ¸Ç ÆäÀÌÁö¿¡ ÀÇÇϸé Àϸí "low numbered" Æ÷Æ®¶ó°í ºÎ¸¥´Ù.
½´ÆÛµ¥¸óÀ» Àç½ÇÇàÇÑ´Ù.
# /etc/rc.d/init.d/inet restart
Á¦´ë·Î µ¿ÀÛÇÏ´ÂÁö Å×½ºÆ®Çغ¸ÀÚ.
[root@www san2]# telnet localhost pop3
Trying 127.0.0.1...
Connected to localhost.
Escape character is '^]'.
+OK QPOP (version 3.0b18) at www.linux.ac.kr starting.
user san2 #<---ÀÌ ºÎºÐÀº Á÷Á¢ ÀÔ·ÂÇÑ´Ù.
+OK Password required for san2.
pass 12345678 #<---ÀÌ ºÎºÐÀº Á÷Á¢ ÀÔ·ÂÇÑ´Ù.
+OK san2 has 42 messages (595757 octets).
quit #<---ÀÌ ºÎºÐÀº Á÷Á¢ ÀÔ·ÂÇÑ´Ù.
+OK Pop server at www.linux.ac.kr signing off.
Connection closed by foreign host.
[root@www san2]#
À§¿Í °°ÀÌ ¸Þ½ÃÁö°¡ ³ª¿À¸é ¼º°øÇÑ °ÍÀÌ´Ù.
ÇÊÀÚ QPOP ¹öÀüÀº 3.0b18 ÀÌ°í 42°³ÀÇ mail ÀÌ ÀÖ´Â ¼ÀÀÌ´Ù.
imap ÆÐÅ°ÁöÀÇ pop3(pop-3)À¸·Î Å×½ºÆ®ÇÏ·Á¸é
# telnet localhost pop-3 ³ª
# telnet localhost 110À¸·Î Á¢¼ÓÇØ¾ß ÇÑ´Ù.
imap ´Â 143¹øÀ¸·Î Á¢¼ÓÇÑ´Ù.
ÀÌÁ¦ ¿©·¯ºÐÀÇ ¸®´ª½º ¹Ú½º´Â Ŭ¶óÀ̾ðÆ®¿¡¼ ¸ÞÀÏÀ» ¹ÞÀ» Áغñ°¡ µÇ¾î ÀÖ´Ù.
´ÙÀ½Àº sendmail ¼³Á¤ÆÄÀÏÀÇ ¿¹ÀÌ´Ù. ²À ÀÌÇØÇÏ°í ³Ñ¾î°¡¾ß ÇÑ´Ù.
4-3. /etc/sendmail.cf
--------------------------------------------------------------
# anything else is bogus
R$* $#error $@ 5.7.1 $: "550 Relaying denied" #<------[ÁÖÀÇ]
# Áß·«
Cwlocalhost
# file containing names of hosts for which we receive email
Fw/etc/sendmail.cw
--------------------------------------------------------------
ºÎ¿¬ ¼³¸íÇÏÀÚ¸é [ÁÖÀÇ]ºÎºÐÀ» ÁÖ¼®À¸·Î ó¸®Çϸé spam ¸ÞÀÏ ¹®Á¦°¡ ÀÖ´Ù.
ÁÖ¼®À¸·Î 󸮵Ǿî ÀÖ´Ù¸é ¾î¼¸é ¿©·¯ºÐÀÇ ¸®´ª½º¹Ú½º´Â SpamerÀÇ
º»°ÅÁö°¡ µÉ ¼ö µµ ÀÖ´Ù´Â °ÍÀÌ´Ù.
ÁÖ¼®À¸·Î 󸮵Ǿî ÀÖ´Ù¸é ÁÖ¼®À» À§¿Í °°ÀÌ Á¦°ÅÇÏ°í accessÆÄÀÏÀ»
¾Æ·¡¿Í °°ÀÌ ÆíÁýÇØ ÁØ´Ù.
±×¸®°í
Fw/etc/sendmail.cw
¿Í °°ÀÌ ÁÖ¼®Ã³¸®°¡ µÇ¾î ÀÖÁö ¾Ê¾Æ¾ß ÇÑ´Ù.
Âü°í·Î, ¼¾µå¸ÞÀÏ ¼³Á¤ ÆÄÀÏ¿¡¼ F ¼³Á¤ ¸í·É¾î¿Í C ¼³Á¤ ¸í·É¾î·Î Á¤ÀÇÇÑ
"w" Ŭ·¡½º´Â ¼·Î µ¿ÀÏÇÏ´Ù.
F ¼³Á¤ ¸í·É¾î´Â ÆÄÀÏÀ» Á¤ÀÇÇϴµ¥ »ç¿ëÇÏ°í C ¼³Á¤ ¸í·É¾î´Â ¹®ÀÚ¿À»
Á¤ÀÇÇϴµ¥ »ç¿ëÇÑ´Ù.
µû¶ó¼,
Cwlocalhost linux.ac.kr mail.linux.ac.kr mail.sonamu.co.kr sonamu.co.kr
¿Í °°ÀÌ Á÷Á¢ ±æ°Ô ³ª¿Çصµ »ó°ü¾ø´Ù.
4-4. /etc/sendmail.cw
--------------------------------------------------------------
# sendmail.cw - include all aliases for your machine here.
# ³×ÀÓ¼¹ö¿¡ µî·ÏµÈ ¸ðµç µµ¸ÞÀÎÀ» ÀÌ ÆÄÀÏ¿¡ ´ÙÀ½°ú °°ÀÌ Àû¾îÁØ´Ù.
linux.ac.kr
mail.linux.ac.kr
linuxer.net
linuxer.com
sonamu.co.kr
--------------------------------------------------------------
Âü°í·Î ÀÌ ÆÄÀÏÀº ÇϳªÀÇ ¸®´ª½º ¹Ú½º·Î ¸ÞÀÏÀÌ µé¾î¿Ã °æ¿ì °¢°¢ÀÇ ¸ÞÀÏÀ»
¹Þ¾ÆÁÙ ¼ö½ÅÀÚ¸¦ ¼³Á¤ÇÏ´Â ³»¿ëÀÌ´Ù.
¸¸¾à, sonamu.co.kr µµ¸ÞÀÎÀÌ ¾ø´Ù¸é ID@sonamu.co.kr·Î ¸ÞÀÏÀ» º¸³»¸é
¼¾µå¸ÞÀÏÀº sonamu.co.kr ¼ö½ÅÀÚ°¡ ¾øÀ¸¹Ç·Î ¸ÞÀÏÀ» ¹ÞÁö ¸øÇÑ´Ù.
¶ÇÇÑ sonamu.co.kr È£½ºÆ®¿¡ ´ëÇؼ MX ·¹ÄÚµå·Î ÁöÁ¤Çß´Ù¸é ÀÚü Å¥À×»óÅ°¡
µÇ¾î ¹ö¸°´Ù.
À̶§ ¹Ý¼ÛµÇ´Â ¸ÞÀÏ Çì´õÀÇ ¸Þ½ÃÁö´Â ´ÙÀ½°ú °°´Ù.
553 sonamu.co.kr. config error: mail loops back to me (MX problem?)
554 <aaa@sonamu.co.kr>... Local
configuration error
´ÙÀ½Àº ¸ÞÀϼ¹ö(mail.sonamu.co.kr)°¡
µ¶¸³ÀûÀ¸·Î Á¸ÀçÇÒ °æ¿ì
554 MX list for xxx.kr. points back to mail.sonamu.co.kr
554 <aaa@sonamu.co.kr>... Local
configuration error
µû¶ó¼ ÇϳªÀÇ ¸®´ª½º ¹Ú½º·Î ³×ÀÓ¼¹ö¿Í ¸ÞÀϼ¹ö¸¦ °°ÀÌ ¿î¿µÇÑ´Ù¸é
/etc/sendmai.cw ÆÄÀÏ¿¡´Â MX ·¹Äڵ带 °®´Â ¸ðµç È£½ºÆ®¸¦ ¼ö½ÅÀÚ·Î ¼³Á¤
ÇؾßÇÑ´Ù.
¶ÇÇÑ ¼ø¼ö µµ¸ÞÀÎÀ» »ç¿ëÇÏ°íÀÚ ÇϹǷΠ°¢°¢ÀÇ °¡»ó µµ¸ÞÀεµ ¼ö½ÅÀÚ·Î ¼³Á¤
ÇØ¾ß ÇÑ´Ù.
4-5. /etc/sendmail.cm
Ưº°ÇÏ°Ô ÆíÁýÇÒ ÇÊ¿ä´Â ¾ø´Ù. ±×³É ³Ñ¾î°£´Ù.
4-6. /etc/mail/access
-------------------------------------------------------------
# ¿¹Á¦:
# cyberspammer.com REJECT
# sendmail.org OK
# 128.32 RELAY
#
# ÁÖÀÇ »çÇ×!!!
#
# ¼³Á¤ ÆÄÀÏÀ» ÀÛ¼ºÇÒ ¶§ sendmail.org ¿Í OK, 128.32 ¿Í RELAY »çÀÌ´Â
# ½ºÆäÀ̽º°¡ ¾Æ´Ï¶ó ²À!!! <ÅÇ>Å°¸¦ »ç¿ëÇÏ¿© ¶ç¿ö¾ß ÇÕ´Ï´Ù.
localhost.localdomain RELAY
localhost RELAY
linux.ac.kr OK
linuxer.net OK
linuxer.com OK
sonamu.co.kr OK
192.168 RELAY
# access ÆÄÀÏÀ» °íÄ£ ÀÌÈÄ¿¡´Â
#
# makemap hash /etc/mail/access < /etc/mail/access
#
# ¸í·ÉÀ¸·Î °»½ÅÇØ ÁÖ¾î¾ß ÇÕ´Ï´Ù.
----------------------------------------------------------
Âü°í·Î /etc/mail/access ÆÄÀÏÀº, ¼¾µå¸ÞÀÏ ÀÔÀå¿¡¼ ¼¾µå¸ÞÀÏÀÌ ¸ÞÀÏ Á߰踦
Çã¿ëÇÒ °ÍÀΰ¡(RELAY), ¶Ç´Â Çã¿ëÇÏÁö ¾ÊÀ» °ÍÀΰ¡(REJECT)¸¦ °áÁ¤Çϴµ¥
±× ÃÊÁ¡ÀÌ ÀÖ´Ù.
¸ÞÀÏ Áß°è¶ó´Â Àǹ̴ ±× Åë·Î¸¦ ¿¾îÁÙ °ÍÀÎÁö ¾Æ´Ï¸é ¿¾îÁÖÁö ¾ÊÀ» °ÍÀÎÁö
¿¡ ´ëÇÑ Áß°èÀÇ ÀǹÌÀÌ´Ù.
¸ÞÀÏ Áß°èÀÇ ´ë»óÀº ¼¾µå¸ÞÀÏ·Î µé¾î¿À´Â ¸ÞÀÏÀÌ´Ù.
µû¶ó¼ ·ÎÄà »ç¿ëÀÚÀÇ POP3 À¯Àú¿Í ´Ù¸¥ SMTP ¼¹ö°¡ ÀÌ¿¡ ÇØ´çµÈ´Ù.
4-7. /etc/mail/virtusertable
¸Å¿ì Áß¿äÇÑ ¼³Á¤ÆÄÀÏÀÌ´Ù. ÀÌ ÆÄÀÏÀ» ¾î¶»°Ô Àß ÆíÁýÇÏ´À³Ä¿¡ µû¶ó¼
À¥È£½ºÆÃÀÇ ¼º°ø¿©ºÎ°¡ ´Þ·Á ÀÖ´Ù°í Çصµ ÁÁ´Ù. ÁÖÀÇ ±í°Ô »ìÆ캸ÀÚ.
ÇÊÀÚ°¡ ¿Ö ÀÌ·¸°Ô ¼³Á¤Çߴ°¡¿¡ ´ëÇؼ´Â ¸Ç À§ÀÇ '³ªÀÇ ¸ñÇ¥'¸¦ ´Ù½ÃÇѹø
Àо±â ¹Ù¶õ´Ù.
------------------------------------------------------------
# ÀÌ ÆÄÀÏÀ» º¸¸é ±èÁ¤±Õ´ÔÀÌ ¾´ ¿¹Á¦¸¦ º¸¸é ½±°Ô ÀÌÇØ ÇÒ ¼ö ÀÖ´Ù.
webmaster@linux.ac.kr san2
ftp@linux.ac.kr san2
study@linux.ac.kr san2
study-app@linux.ac.kr san2
study-net@linux.ac.kr san2
game@linux.ac.kr gamedori@hanmail.net
@linuxer.com com
webmaster@linuxer.net net
ftp@linuxer.net net
meeting@linuxer.net meet
admin@sonamu.co.kr sonamu
----------------------------------------------------------
ºÎ¿¬¼³¸íÇÏÀÚ¸é
µµ¸ÞÀÎ linux.ac.kr(¸ÞÀϼ¹ö)
¿¡ ´ëÇؼ
game@linux.ac.kr·Î ¿À´Â ¸ÞÀÏÀº gamedori@hanmail.netÀ¸·Î
¸ÞÇÎÇÏ°í ³ª¸ÓÁö webmaster@linux.ac.kr
ftp@linux.ac.kr
study@linux.ac.kr study-app@linux.ac.kr study-net@linux.ac.kr
·Î ¿À´Â ¸ÞÀÏÀº ÀÌ ¼¹ö °ü¸®ÀÚÀÎ rootÀÇ ÀÏ¹Ý À¯ÀúÀÎ 'san2' °èÁ¤À¸·Î
º¸³½´Ù.
@linux.ac.kr san2
·Î ¼³Á¤ÇØ ¹ö¸®¸é linux.ac.kr µµ¸ÞÀÎ(¸ÞÀϼ¹ö)À» »ç¿ëÇÏ¿© ¿À´Â ¸ÞÀÏÀº
¸ðµÎ 'san2'°¡ ¹Þ°Ô µÇ¾î ¹ö¸°´Ù. ´Ù¸¥ ÀÏ¹Ý À¯Àú±îÁöµµ Æ÷ÇÔÇϱ⠶§¹®¿¡
ÇϳªÇϳª¾¿ ÁöÁ¤ÇØ ÁÖ¾î¾ß ÇÑ´Ù.
µµ¸ÞÀÎ linuxer.com(¸ÞÀϼ¹ö)
¿¡ ´ëÇؼ
webmaster@linuxer.com ftp@linuxer.com stock@linuxer.com À¸·Î ¿À
´Â ¸ÞÀÏÀº ¸ðµÎ com À¯Àú°¡ ¹Þ¾Æ º¼ ¼ö ÀÖ´Ù.
ÀÌ°ÍÀ» ÀÌÇØ ÇÒ ¼ö ÀÖ´Ù¸é ³ª¸ÓÁö linuxer.net °ú sonamu ¸ÞÀϼ¹ö¿¡ ´ëÇØ
¼´Â ½±°Ô ÀÌÇØ Çϸ®¶ó »ý°¢µÈ´Ù.
ÆÄÀÏ ÆíÁýÀÌ ³¡³µÀ¸¸é ´ÙÀ½°ú °°Àº ¸í·ÉÀ» ²À ½ÇÇàÇØ ÁÖ¾î¾ß ÇÑ´Ù.
# makemap hash /etc/mail/virtusertable < /etc/mail/virtusertable
ÀÌ·Î½á °¡»ó¸ÞÀϼ¹ö ¼³Á¤ÀÌ ¸ðµÎ ³¡³µ´Ù.
[ÀÌÀç¾Æ]´ÔÀÌ ³²±â½Å ±Û:
>¾È³Ä¼¼¿©...
>¾îÁ¦ °©ÀÚ±â Á¤ÀüÀÌ µÈ ÀÌÈÄ·Î ¾ÈµÇ´Â°ÇÁö´Â Àß ¸ð¸£°Ú´Âµ¥¿©..
>
>¿À´Ã ¸ÞÀÏÀ» º¸·Á°í Çß´õ´Ï ¾ÈµÇ°Åµç¿©..
>
>ps -ax | grep sendmail Çß´õ´Ï
>
>-- 709 ? S 0:00 sendmail: rejecting connections on port 25: min
free:
>
>À§¿Í °°Àº ¸Þ½ÃÁö°¡ ¶°¿©...
>
>¸®ºÎÆÃÀ» Çصµ ¾ÈµÇ°í.. ¼³Á¤Àº ±×´ë·ÎÀε¥...
>¾ÏÆ° ´©°¡ Á» µµ¿ÍÁÖ¼¼¿©..
========================================
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