¥Í¥Ã¥È¥ï¡¼¥¯¥ï¡¼¥­¥ó¥°¥°¥ë¡¼¥× Internet Engineering Task Force RFC: 1123 R. Braden, Editor 1989ǯ10·î ¥¤¥ó¥¿¡¼¥Í¥Ã¥È¥Û¥¹¥È¤ÎÍ×·ï: ¥¢¥×¥ê¥±¡¼¥·¥ç¥ó¤È¥µ¥Ý¡¼¥È Status of This Memo This RFC is an official specification for the Internet community. It incorporates by reference, amends, corrects, and supplements the primary protocol standards documents relating to hosts. Distribution of this document is unlimited. ³µÍ× ËÜʸ½ñ¤Ï¡¢¥¤¥ó¥¿¡¼¥Í¥Ã¥È¥Û¥¹¥È¥½¥Õ¥È¥¦¥§¥¢¤ÎÍ×·ï¤òÄêµÁ¡¢µÄÏÀ¤¹¤ëÂФΠRFC¤Î°ì¤Ä¤Ç¤¢¤ë¡£ËÜRFC¤Ï¡¢¥¢¥×¥ê¥±¡¼¥·¥ç¥ó¥×¥í¥È¥³¥ëµÚ¤Ó¥µ¥Ý¡¼¥È ¥×¥í¥È¥³¥ë¤ò¥«¥Ð¡¼¤¹¤ë¡£ÂФΤ⤦ÊÒÊý¤ÎRFC 1122¤Ï¡¢ÄÌ¿®¥×¥í¥È¥³¥ë¤Î ¥ì¥¤¥ä¡¼¡¢¶ñÂÎŪ¤Ë¥ê¥ó¥¯¥ì¥¤¥ä¡¼¡¢IP¥ì¥¤¥ä¡¼¡¢¥È¥é¥ó¥¹¥Ý¡¼¥È¥ì¥¤¥ä¡¼ ¤ò¥«¥Ð¡¼¤¹¤ë¡£ Ìܼ¡ 1. ¤Ï¤¸¤á¤Ë ................................................... 5 1.1 ¥¤¥ó¥¿¡¼¥Í¥Ã¥È¥¢¡¼¥­¥Æ¥¯¥Á¥ã¡¼ ......................... 6 1.2 °ìÈÌŪ¤Ê¹ÍθÅÀ ......................................... 6 1.2.1 ·Ñ³Ū¤Ê¥¤¥ó¥¿¡¼¥Í¥Ã¥È¤ÎȯŸ ...................... 6 1.2.2 ¥í¥Ð¥¹¥È¥Í¥¹¸¶Â§ .................................. 7 1.2.3 ¥¨¥é¡¼¤Î¥í¥®¥ó¥° .................................. 8 1.2.4 ´Ä¶­ÀßÄê .......................................... 8 1.3 ËÜʸ½ñ¤ÎÆÉ¤ßÊý ......................................... 10 1.3.1 ¹½À® .............................................. 10 1.3.2 Í×·ï .............................................. 10 1.3.3 ÍѸì .............................................. 11 1.4 Acknowledgments ........................................ 12 2. °ìÈÌŪ¤Ê¥¢¥×¥ê¥±¡¼¥·¥ç¥ó¤ÎÍ×·ï ............................. 13 2.1 ¥Û¥¹¥È̾µÚ¤ÓÈÖ¹æ ..................................... 13 2.2 ¥É¥á¥¤¥ó̾¥µ¡¼¥Ó¥¹¤Î»ÈÍÑ ............................... 13 2.3 ¥Þ¥ë¥Á¥Û¡¼¥à¥Û¥¹¥È¾å¤Î¥¢¥×¥ê¥±¡¼¥·¥ç¥ó ................. 14 2.4 ¥¿¥¤¥×¥ª¥Ö¥µ¡¼¥Ó¥¹ ..................................... 14 2.5 °ìÈÌŪ¤Ê¥¢¥×¥ê¥±¡¼¥·¥ç¥ó¤ÎÍ×·ï¤Î³µÍ× ................... 15 Internet Engineering Task Force [Page 1] RFC1123 INTRODUCTION October 1989 3. ¥ê¥â¡¼¥È¥í¥°¥¤¥ó -- Telnet¥×¥í¥È¥³¥ë ....................... 16 3.1 ƳÆþ ................................................... 16 3.2 ¥×¥í¥È¥³¥ë¤Î¥¦¥©¡¼¥¯¥¹¥ë¡¼ ............................. 16 3.2.1 ¥ª¥×¥·¥ç¥ó¤Î¥Í¥´¥·¥¨¡¼¥·¥ç¥ó ...................... 16 3.2.2 Telnet¤ÎGo-Aheadµ¡Ç½ .............................. 16 3.2.3 À©¸æµ¡Ç½ .......................................... 17 3.2.4 Telnet¤Î"Synch(Ʊ´ü)"ÄÌÃÎ ......................... 18 3.2.5 NVT¥×¥ê¥ó¥¿¡¼µÚ¤ÓNVT¥­¡¼¥Ü¡¼¥É .................. 19 3.2.6 Telnet¥³¥Þ¥ó¥É¤Î¹½Â¤ .............................. 20 3.2.7 Telnet¤ÎBinary¥ª¥×¥·¥ç¥ó .......................... 20 3.2.8 Telnet¤ÎTerminal-Type¥ª¥×¥·¥ç¥ó ................... 20 3.3 ¸ÇÍ­¤Î²ÝÂê ............................................. 21 3.3.1 Telnet¤Î¹ÔËö¤Ë´Ø¤¹¤ëµ¬Äê .......................... 21 3.3.2 ¥Ç¡¼¥¿ÆþÎÏüËö .................................... 23 3.3.3 ¥ª¥×¥·¥ç¥ó¤ÎÍ×·ï .................................. 24 3.3.4 ¥ª¥×¥·¥ç¥ó¤Î¥Í¥´¥·¥¨¡¼¥·¥ç¥ó ...................... 24 3.3.5 Telnet¤ÎLinemode¥ª¥×¥·¥ç¥ó ........................ 25 3.4 Telnet/¥æ¡¼¥¶¡¼´Ö¤Î¥¤¥ó¥¿¡¼¥Õ¥§¡¼¥¹ .................... 25 3.4.1 ʸ»ú½¸¹ç¤ÎÆ©²áÀ­ .................................. 25 3.4.2 Telnet¥³¥Þ¥ó¥É .................................... 26 3.4.3 TCPÀܳ¤Î¥¨¥é¡¼ ................................... 26 3.4.4 ¥Ç¥Õ¥©¥ë¥È°Ê³°¤ÎTelnetÀܳ¥Ý¡¼¥È .................. 26 3.4.5 ½ÐÎϤÎÇÑ´þ ........................................ 26 3.5. Telnet¤ÎÍ×·ï¤Î³µÍ× .................................... 27 4. ¥Õ¥¡¥¤¥ëžÁ÷ ............................................... 29 4.1 FTP(¥Õ¥¡¥¤¥ë¥È¥é¥ó¥¹¥Õ¥¡¡¼¥×¥í¥È¥³¥ë) .................. 29 4.1.1 ƳÆþ .............................................. 29 4.1.2. ¥×¥í¥È¥³¥ë¤Î¥¦¥©¡¼¥¯¥¹¥ë¡¼ ....................... 29 4.1.2.1 LOCAL¥¿¥¤¥× .................................. 29 4.1.2.2 Telnet¤Î¥Õ¥©¡¼¥Þ¥Ã¥ÈÀ©¸æ ..................... 30 4.1.2.3 ¥Ú¡¼¥¸¹½Â¤ ................................... 30 4.1.2.4 ¥Ç¡¼¥¿¹½Â¤¤ÎÊÑ´¹ ............................. 30 4.1.2.5 ¥Ç¡¼¥¿Å¾Á÷ÍÑÀܳ¤Î´ÉÍý ....................... 31 4.1.2.6 PASV¥³¥Þ¥ó¥É ................................. 31 4.1.2.7 LIST¥³¥Þ¥ó¥ÉµÚ¤ÓNLST¥³¥Þ¥ó¥É ................. 31 4.1.2.8 SITE¥³¥Þ¥ó¥É ................................. 32 4.1.2.9 STOU¥³¥Þ¥ó¥É ................................. 32 4.1.2.10 Telnet¤Î¹ÔËö¥³¡¼¥É .......................... 32 4.1.2.11 FTP±þÅú ..................................... 33 4.1.2.12 Àܳ ........................................ 34 4.1.2.13 ºÇ¾®¸Â¤Î¼ÂÁõ ................................ 34 4.1.3 ¸ÇÍ­¤Î²ÝÂê ........................................ 35 4.1.3.1 ɸ½à³°¤Î¥³¥Þ¥ó¥É̾ ........................... 35 4.1.3.2 ¥¢¥¤¥É¥ë¥¿¥¤¥à¥¢¥¦¥È ......................... 36 4.1.3.3 ¥Ç¡¼¥¿Å¾Á÷¤ÈÀ©¸æ¤ÎƱ»þÊÂÎóÀ­ ................. 36 4.1.3.4 FTP¤ÎºÆ³«¤Î»ÅÁÈ¤ß ............................ 36 4.1.4 FTP/¥æ¡¼¥¶¡¼´Ö¤Î¥¤¥ó¥¿¡¼¥Õ¥§¡¼¥¹ .................. 39 Internet Engineering Task Force [Page 2] RFC1123 INTRODUCTION October 1989 4.1.4.1 ¥Ñ¥¹Ì¾¤Î»ØÄê ................................. 39 4.1.4.2 "QUOTE"¥³¥Þ¥ó¥É .............................. 40 4.1.4.3 ¥æ¡¼¥¶¡¼¤Ø¤Î±þÅúɽ¼¨ ......................... 40 4.1.4.4 Ʊ´ü¤Î°Ý»ý ................................... 40 4.1.5 FTP¤ÎÍ×·ï¤Î³µÍ× .................................. 41 4.2 TFTP(¥È¥ê¥Ó¥¢¥ë¥Õ¥¡¥¤¥ë¥È¥é¥ó¥¹¥Õ¥¡¡¼¥×¥í¥È¥³¥ë) ....... 44 4.2.1 ƳÆþ .............................................. 44 4.2.2 ¥×¥í¥È¥³¥ë¤Î¥¦¥©¡¼¥¯¥¹¥ë¡¼ ........................ 44 4.2.2.1 žÁ÷¥â¡¼¥É ................................... 44 4.2.2.2 UDP¥Ø¥Ã¥À¡¼ .................................. 44 4.2.3 ¸ÇÍ­¤ÎÌäÂê ........................................ 44 4.2.3.1 SAS(Sorcerer's Apprentice Syndrome) .......... 44 4.2.3.2 ¥¿¥¤¥à¥¢¥¦¥È¥¢¥ë¥´¥ê¥º¥à ..................... 46 4.2.3.3 ³ÈÄ¥ ......................................... 46 4.2.3.4 ¥¢¥¯¥»¥¹À©¸æ ................................. 46 4.2.3.5 ¥Ö¥í¡¼¥É¥­¥ã¥¹¥È¥ê¥¯¥¨¥¹¥È ................... 46 4.2.4 TFTP¤ÎÍ×·ï¤Î³µÍ× .................................. 47 5. ÅŻҥ᡼¥ë -- SMTPµÚ¤ÓRFC 822 .............................. 48 5.1 ƳÆþ ................................................... 48 5.2 ¥×¥í¥È¥³¥ë¤Î¥¦¥©¡¼¥¯¥¹¥ë¡¼ ............................. 48 5.2.1 SMTP¥â¥Ç¥ë ........................................ 48 5.2.2 Àµµ¬²½ ............................................ 49 5.2.3 VRFY¡¢EXPN¥³¥Þ¥ó¥É: RFC 821 ¥»¥¯¥·¥ç¥ó3.3 ......... 50 5.2.4 SEND¡¢SOML¡¢SAML¥³¥Þ¥ó¥É .......................... 50 5.2.5 HELO¥³¥Þ¥ó¥É ...................................... 50 5.2.6 ¥á¡¼¥ë¤ÎÃæ·Ñ ...................................... 51 5.2.7 RCPT¥³¥Þ¥ó¥É ...................................... 52 5.2.8 DATA¥³¥Þ¥ó¥É ...................................... 53 5.2.9 ¥³¥Þ¥ó¥É¹½Ê¸ ...................................... 54 5.2.10 SMTP±þÅú ......................................... 54 5.2.11 Æ©²áÀ­ ........................................... 55 5.2.12 MX½èÍý¤Ë¤ª¤±¤ëWKS¤Î»ÈÍÑ .......................... 55 5.2.13 RFC 822¤Î¥á¥Ã¥»¡¼¥¸»ÅÍÍ .......................... 55 5.2.14 RFC 822¤ÎÆüÉդȻþ¹ï¤Î»ÅÍÍ ........................ 55 5.2.15 RFC 822¤Î¹½Ê¸¤ÎÊѹ¹ .............................. 56 5.2.16 RFC 822¤ÎLocal-part .............................. 56 5.2.17 ¥É¥á¥¤¥ó¥ê¥Æ¥é¥ë ................................. 57 5.2.18 ¥¢¥É¥ì¥¹¥Õ¥©¡¼¥Þ¥Ã¥È¤Î°ìÈÌŪ¤Ê¥¨¥é¡¼ ............. 58 5.2.19 ÌÀ¼¨Åª¤Ê¥½¡¼¥¹¥ë¡¼¥È ............................. 58 5.3 ¸ÇÍ­¤Î²ÝÂê ............................................. 59 5.3.1 SMTP¤Î¥­¥å¡¼´ÉÍýÀïά .............................. 59 5.3.1.1 Á÷¿®¤ÎÀïά ................................... 59 5.3.1.2 ¼õ¿®¤ÎÀïά ................................... 61 5.3.2 SMTP¤Î¥¿¥¤¥à¥¢¥¦¥È ................................ 61 5.3.3 ¿®ÍêÀ­¤Î¤¢¤ë¥á¡¼¥ë¼õ¿® ............................ 63 5.3.4 ¿®ÍêÀ­¤Î¤¢¤ë¥á¡¼¥ëÁ÷¿® ............................ 63 5.3.5 ¥É¥á¥¤¥ó̾¤Î¥µ¥Ý¡¼¥È .............................. 65 Internet Engineering Task Force [Page 3] RFC1123 INTRODUCTION October 1989 5.3.6 ¥á¡¼¥ê¥ó¥°¥ê¥¹¥È¤È¥¨¥¤¥ê¥¢¥¹ ...................... 65 5.3.7 ¥á¡¼¥ë¤Î¥²¡¼¥È¥¦¥§¥¤Ãæ·Ñ .......................... 66 5.3.8 ºÇÂç¥á¥Ã¥»¡¼¥¸¥µ¥¤¥º .............................. 68 5.4 SMTP¤ÎÍ×·ï¤Î³µÍ× ....................................... 69 6. ¥µ¥Ý¡¼¥È¥µ¡¼¥Ó¥¹ ............................................ 72 6.1 ¥É¥á¥¤¥ó̾¤ÎÊÑ´¹ ........................................ 72 6.1.1 ƳÆþ ............................................... 72 6.1.2 ¥×¥í¥È¥³¥ë¤Î¥¦¥©¡¼¥¯¥¹¥ë¡¼ ........................ 72 6.1.2.1 TTL¤¬¥¼¥í¤Î¥ê¥½¡¼¥¹¥ì¥³¡¼¥É .................. 73 6.1.2.2 QCLASS¤ÎÃÍ ................................... 73 6.1.2.3 »ÈÍѤµ¤ì¤Ê¤¤¥Õ¥£¡¼¥ë¥É ....................... 73 6.1.2.4 °µ½Ì ......................................... 73 6.1.2.5 ÀßÄê¾ðÊó¤Î¸íÍÑ ............................... 73 6.1.3 ¸ÇÍ­¤Î²ÝÂê ........................................ 74 6.1.3.1 ¥ê¥¾¥ë¥Ð¡¼¤Î¼ÂÁõ ............................. 74 6.1.3.2 ¥È¥é¥ó¥¹¥Ý¡¼¥È¥×¥í¥È¥³¥ë ..................... 75 6.1.3.3 ¸úΨŪ¤Ê¥ê¥½¡¼¥¹¤Î»ÈÍÑ ....................... 77 6.1.3.4 ¥Þ¥ë¥Á¥Û¡¼¥à¥Û¥¹¥È ........................... 78 6.1.3.5 ³ÈÄ¥À­ ....................................... 79 6.1.3.6 RR¥¿¥¤¥×¤Î¾õÂÖ ............................... 79 6.1.3.7 ¥í¥Ð¥¹¥ÈÀ­ ................................... 80 6.1.3.8 ¥í¡¼¥«¥ë¥Û¥¹¥È¥Æ¡¼¥Ö¥ë ....................... 80 6.1.4 DNS/¥æ¡¼¥¶¡¼´Ö¤Î¥¤¥ó¥¿¡¼¥Õ¥§¡¼¥¹ .................. 81 6.1.4.1 DNS¤Î´ÉÍý .................................... 81 6.1.4.2 DNS¤Î¥æ¡¼¥¶¡¼¥¤¥ó¥¿¡¼¥Õ¥§¡¼¥¹ ................ 81 6.1.4.3 ¥¤¥ó¥¿¡¼¥Õ¥§¡¼¥¹¤Ë¤ª¤±¤ë̾Á°¤Î¾Êάµ¡Ç½ ........ 82 6.1.5 DNS¤ÎÍ×·ï¤Î³µÍ× ................................... 84 6.2 ¥Û¥¹¥È¤Î½é´üÀßÄê ....................................... 87 6.2.1 ƳÆþ .............................................. 87 6.2.2 Í×·ï .............................................. 87 6.2.2.1 ưŪÀßÄê ..................................... 87 6.2.2.2 ¥í¡¼¥ÉÃʳ¬ ................................... 89 6.3 ¥ê¥â¡¼¥È´ÉÍý ........................................... 90 6.3.1 ƳÆþ .............................................. 90 6.3.2 ¥×¥í¥È¥³¥ë¤Î¥¦¥©¡¼¥¯¥¹¥ë¡¼ ........................ 90 6.3.3 MANAGEMENT REQUIREMENTS SUMMARY ................... 92 7. REFERENCES ................................................. 93 Internet Engineering Task Force [Page 4] RFC1123 INTRODUCTION October 1989 1. ¤Ï¤¸¤á¤Ë ËÜʸ½ñ¤Ï¡¢¥¤¥ó¥¿¡¼¥Í¥Ã¥È¥×¥í¥È¥³¥ë¥¹¥¤¡¼¥È¤Î¥Û¥¹¥È¥·¥¹¥Æ¥à¼ÂÁõ¤Î Í×·ï¤òÄêµÁ¤·µÄÏÀ¤¹¤ëÂФÎRFC¤Î°ì¤Ä¤Ç¤¢¤ë¡£ËÜRFC¤Ï¡¢¥¢¥×¥ê¥±¡¼¥·¥ç¥ó ¥ì¥¤¥ä¡¼µÚ¤Ó¥µ¥Ý¡¼¥È¥×¥í¥È¥³¥ë¤ò¥«¥Ð¡¼¤¹¤ë¡£ÂФΤ⤦ÊÒÊý¤ÎRFC ¤Ç¤¢¤ë"¥¤¥ó¥¿¡¼¥Í¥Ã¥È¥Û¥¹¥È¤ÎÍ×·ï: ÄÌ¿®¥ì¥¤¥ä¡¼"[INTRO:1]¤Ï¡¢²¼°Ì¤Î ¥×¥í¥È¥³¥ë¥ì¥¤¥ä¡¼¡¢¶ñÂÎŪ¤Ë¥ê¥ó¥¯¥ì¥¤¥ä¡¼¡¢IP¥ì¥¤¥ä¡¼¡¢¥È¥é¥ó¥¹ ¥Ý¡¼¥È¥ì¥¤¥ä¡¼¤ò¥«¥Ð¡¼¤¹¤ë¡£ ¤³¤ì¤é°ìÏ¢¤Îʸ½ñ¤Ï¡¢¥¤¥ó¥¿¡¼¥Í¥Ã¥ÈÄÌ¿®¥½¥Õ¥È¥¦¥§¥¢¤Î¥Ù¥ó¥À¡¼¡¢ ¼ÂÁõ¼Ô¡¢ÍøÍѼԤé¤ËÂФ·¤Æ»Ø¿Ë¤òÄ󶡤¹¤ë¤³¤È¤ò°Õ¿Þ¤·¤Æ¤¤¤ë¡£¤³¤ì¤é¤Ï¡¢ ¥¤¥ó¥¿¡¼¥Í¥Ã¥È¤Î¸¦µæ¥³¥ß¥å¥Ë¥Æ¥£¤ä¥Ù¥ó¥À¡¼¥³¥ß¥å¥Ë¥Æ¥£¤Î¥á¥ó¥Ð¡¼¤Ë ¤è¤Ã¤Æ´óÍ¿¤µ¤ì¤¿Â¿¤¯¤Îµ»½Ñ·Ð¸³¤äÃθ«¤Î¹ç°Õ¤òɽ¸½¤¹¤ë¤â¤Î¤Ç¤¢¤ë¡£ ËÜRFC¤Ï¡¢¥¤¥ó¥¿¡¼¥Í¥Ã¥È¤ËÀܳ¤µ¤ì¤ë¥Û¥¹¥È¤¬»ÈÍѤ·¤Ê¤±¤ì¤Ð¤Ê¤é¤Ê¤¤ ɸ½à¥×¥í¥È¥³¥ë¤òÎóµó¤¹¤ë¡£¤Þ¤¿¡¢»²¾È¤Ë¤è¤ê¡¢¤³¤ì¤é¤Î¥×¥í¥È¥³¥ë¤Î ¸½¹Ô»ÅÍͤòµ­½Ò¤¹¤ëRFC¤ä¾¤Îʸ½ñ¤âÁÈ¤ßÆþ¤ì¤Æ¤¤¤ë¡£¹¹¤Ë¡¢»²¾È¤µ¤ì¤ë 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¤³¤Î¸ì¶ç¤Þ¤¿¤Ï·ÁÍÆ»ì¤Î"Í׵ᤵ¤ì¤ë(REQUIRED)"¤Ï¡¢¤½¤Î¹àÌܤ¬ »ÅÍͤÎÀäÂÐŪ¤ÊÍ×·ï¤Ç¤¢¤ë¤³¤È¤ò°ÕÌ£¤¹¤ë¡£ ¡¦ "¤¹¤Ù¤­¤Ç¤¢¤ë(SHOULD)" ¤³¤Î¸ì¶ç¤Þ¤¿¤Ï·ÁÍÆ»ì¤Î"¿ä¾©¤µ¤ì¤ë(RECOMMENDED)"¤Ï¡¢ÆÃÄê¤Î ¾õ¶·¤Ç¤Ï¤½¤Î¹àÌܤò̵»ë¤¹¤ëÀµÅö¤ÊÍýͳ¤¬Â¸ºß¤¹¤ë¾ì¹ç¤â¤¢¤ë¤¬¡¢ ¤½¤Î°ÕÌ£¤¹¤ë¤È¤³¤í¤Ï¤¹¤Ù¤ÆÍý²ò¤µ¤ì¤ë¤Ù¤­¤Ç¤¢¤ê¡¢°Û¤Ê¤ë¤ä¤êÊý ¤òÁªÂò¤¹¤ëÁ°¤Ë¿µ½Å¤Ë¸¡Æ¤¤µ¤ì¤ë¤Ù¤­¤Ç¤¢¤ë¤³¤È¤ò°ÕÌ£¤¹¤ë¡£ ¡¦ "¤·¤Æ¤â¤è¤¤(MAY)" ¤³¤Î¸ì¶ç¤Þ¤¿¤Ï·ÁÍÆ»ì¤Î"Ǥ°Õ¤Î(OPTIONAL)"¤Ï¡¢¤³¤Î¹àÌܤ¬ ʶ¤ì¤â¤Ê¤¯Ç¤°Õ¤Ç¤¢¤ë¤³¤È¤ò°ÕÌ£¤¹¤ë¡£Î㤨¤Ð¡¢¤¢¤ë¥Ù¥ó¥À¡¼¤Ï ÆÃÄê¤Î»Ô¾ì¤¬¤½¤ì¤òÍ׵ᤷ¤Æ¤¤¤¿¤êÀ½Éʤò¶¯²½¤¹¤ë¤È¤¤¤¦Íýͳ¤Ç ¤½¤Î¹àÌܤò´Þ¤á¤ë¤«¤â¤·¤ì¤Ê¤¤¤·¡¢Ê̤Υ٥ó¥À¡¼¤ÏƱ¤¸¹àÌܤò ½ü³°¤¹¤ë¤«¤â¤·¤ì¤Ê¤¤¡£ ¤¢¤ë¼ÂÁõ¤¬¡¢¼ÂÁõ¤·¤è¤¦¤È¤¹¤ë¥×¥í¥È¥³¥ë¤Î°ì¤Ä°Ê¾å¤Î"MUST"Í×·ï¤ò Ëþ¤¿¤¹¤³¤È¤Ë¼ºÇÔ¤·¤Æ¤¤¤ë¾ì¹ç¡¢¤½¤Î¼ÂÁõ¤Ï¥×¥í¥È¥³¥ë½àµò¤Ç¤Ï¤Ê¤¤¡£ ¥×¥í¥È¥³¥ë¤Î¤¹¤Ù¤Æ¤Î"MUST"µÚ¤Ó"SHOULD"¤ÎÍ×·ï¤òËþ¤¿¤¹¼ÂÁõ¤Ï¡¢ "̵¾ò·ï¤Ë½àµò"¤Ç¤¢¤ë¤È¤¤¤¦¡£°ìÊý¡¢¥×¥í¥È¥³¥ë¤Î"MUST"Í×·ï¤Ï¤¹¤Ù¤Æ Ëþ¤¿¤·¤Æ¤¤¤ë¤¬¡¢"SHOULD"Í×·ï¤ò¤¹¤Ù¤ÆËþ¤¿¤·¤Æ¤¤¤Ê¤¤¼ÂÁõ¤Ï"¾ò·ïÉÕ¤­ ½àµò"¤Ç¤¢¤ë¤È¤¤¤¦¡£ 1.3.3 ÍѸì ËÜʸ½ñ¤Ï¡¢°Ê²¼¤Îµ»½ÑÍѸì¤ò»ÈÍѤ¹¤ë¡£ ¥»¥°¥á¥ó¥È ¥»¥°¥á¥ó¥È¤Ï¡¢TCP¥×¥í¥È¥³¥ë¤Ë¤ª¤±¤ë¥¨¥ó¥É¥Ä¡¼¥¨¥ó¥É¤ÎžÁ÷ ñ°Ì¤Ç¤¢¤ë¡£¥»¥°¥á¥ó¥È¤Ï¡¢TCP¥Ø¥Ã¥À¡¼¤È¤½¤ì¤Ë³¤¯¥¢¥×¥ê ¥±¡¼¥·¥ç¥ó¥Ç¡¼¥¿¤Ç¹½À®¤µ¤ì¤ë¡£¥»¥°¥á¥ó¥È¤Ï¡¢IP¥Ç¡¼¥¿¥°¥é¥à Æâ¤Ë¥«¥×¥»¥ë²½¤µ¤ì¤ÆÅ¾Á÷¤µ¤ì¤ë¡£ ¥á¥Ã¥»¡¼¥¸ ¤³¤ÎÍѸì¤Ï¡¢°ìÉô¤Î¥¢¥×¥ê¥±¡¼¥·¥ç¥ó¥ì¥¤¥ä¡¼¥×¥í¥È¥³¥ë (ÆÃ¤ËSMTP)¤Ç¥¢¥×¥ê¥±¡¼¥·¥ç¥ó¤Î¥Ç¡¼¥¿Ã±°Ì¤ò»²¾È¤¹¤ë¤¿¤á¤Ë »ÈÍѤµ¤ì¤ë¡£ ¥Ç¡¼¥¿¥°¥é¥à "UDP"¥Ç¡¼¥¿¥°¥é¥à¤Ï¡¢UDP¥×¥í¥È¥³¥ë¤Ë¤ª¤±¤ë¥¨¥ó¥É¥Ä¡¼¥¨¥ó¥É¤Î žÁ÷ñ°Ì¤Ç¤¢¤ë¡£ Internet Engineering Task Force [Page 11] RFC1123 INTRODUCTION October 1989 ¥Þ¥ë¥Á¥Û¡¼¥à ¥Û¥¹¥È¤¬(Ê£¿ô¤Î)Àܳ¥Í¥Ã¥È¥ï¡¼¥¯¤ËÂФ·¤ÆÊ£¿ô¤ÎIP¥¢¥É¥ì¥¹ ¤ò»ý¤Ä¾ì¹ç¡¢¤½¤Î¥Û¥¹¥È¤Ï¥Þ¥ë¥Á¥Û¡¼¥à¤Ç¤¢¤ë¤È¤¤¤¦¡£ 1.4 Acknowledgments This document incorporates contributions and comments from a large group of Internet protocol experts, including representatives of university and research labs, vendors, and government agencies. It was assembled primarily by the Host Requirements Working Group of the Internet Engineering Task Force (IETF). The Editor would especially like to acknowledge the tireless dedication of the following people, who attended many long meetings and generated 3 million bytes of electronic mail over the past 18 months in pursuit of this document: Philip Almquist, Dave Borman (Cray Research), Noel Chiappa, Dave Crocker (DEC), Steve Deering (Stanford), Mike Karels (Berkeley), Phil Karn (Bellcore), John Lekashman (NASA), Charles Lynn (BBN), Keith McCloghrie (TWG), Paul Mockapetris (ISI), Thomas Narten (Purdue), Craig Partridge (BBN), Drew Perkins (CMU), and James Van Bokkelen (FTP Software). In addition, the following people made major contributions to the effort: Bill Barns (Mitre), Steve Bellovin (AT&T), Mike Brescia (BBN), Ed Cain (DCA), Annette DeSchon (ISI), Martin Gross (DCA), Phill Gross (NRI), Charles Hedrick (Rutgers), Van Jacobson (LBL), John Klensin (MIT), Mark Lottor (SRI), Milo Medin (NASA), Bill Melohn (Sun Microsystems), Greg Minshall (Kinetics), Jeff Mogul (DEC), John Mullen (CMC), Jon Postel (ISI), John Romkey (Epilogue Technology), and Mike StJohns (DCA). The following also made significant contributions to particular areas: Eric Allman (Berkeley), Rob Austein (MIT), Art Berggreen (ACC), Keith Bostic (Berkeley), Vint Cerf (NRI), Wayne Hathaway (NASA), Matt Korn (IBM), Erik Naggum (Naggum Software, Norway), Robert Ullmann (Prime Computer), David Waitzman (BBN), Frank Wancho (USA), Arun Welch (Ohio State), Bill Westfield (Cisco), and Rayan Zachariassen (Toronto). We are grateful to all, including any contributors who may have been inadvertently omitted from this list. Internet Engineering Task Force [Page 12] RFC1123 APPLICATIONS LAYER -- GENERAL October 1989 2. °ìÈÌŪ¤Ê¥¢¥×¥ê¥±¡¼¥·¥ç¥ó¤ÎÍ×·ï ËÜ¥»¥¯¥·¥ç¥ó¤Ï¡¢¤¹¤Ù¤Æ¤Î¥¢¥×¥ê¥±¡¼¥·¥ç¥ó¥ì¥¤¥ä¡¼¥×¥í¥È¥³¥ë¤ËŬÍѲÄǽ¤È »×¤ï¤ì¤ë°ìÈÌŪ¤ÊÍ×·ï¤ò´Þ¤à¡£ 2.1 ¥Û¥¹¥È̾µÚ¤ÓÈÖ¹æ ÀµÅö¤Ê¥¤¥ó¥¿¡¼¥Í¥Ã¥È¥Û¥¹¥È̾¤Î¹½Ê¸¤ÏRFC 952[DNS:4]¤Çµ¬Äꤵ¤ì¡¢ RFC 1034¤Î¥»¥¯¥·¥ç¥ó3.5[DNS:1]¤Ç·«¤êÊÖ¤·½Ò¤Ù¤é¤ì¤Æ¤¤¤ë¡£ ¥Û¥¹¥È̾¹½Ê¸¤Î°ì¤Ä¤Î¦Ì̤ò¤³¤³¤ÇÊѹ¹¤¹¤ë¡£ÀèÆ¬Ê¸»ú¤ÎÀ©¸Â¤¬´ËÏ ¤µ¤ì¡¢±Ñ»ú¤Þ¤¿¤Ï¿ô»ú¤Î¤¤¤º¤ì¤«¤Ç¤¢¤ì¤ÐµöÍÆ¤µ¤ì¤ë¤è¤¦¤Ë¤Ê¤ë¡£ ¥Û¥¹¥È¥½¥Õ¥È¥¦¥§¥¢¤Ï¡¢¤è¤ê´²ÍƤʤ³¤Î¹½Ê¸¤ò¥µ¥Ý¡¼¥È¤·¤Ê¤±¤ì¤Ð ¤Ê¤é¤Ê¤¤(MUST)¡£(ÌõÃð: ËÜÃÊÍî¤ÏErrata ID: 1354¤òÈ¿±Ç¤·¤Æ¤¤¤ë) ¥Û¥¹¥È¥½¥Õ¥È¥¦¥§¥¢¤Ï¡¢ºÇÂç63ʸ»ú¤Î¥Û¥¹¥È̾¤ò°·¤¨¤Ê¤±¤ì¤Ð¤Ê¤é¤º (MUST)¡¢ºÇÂç255ʸ»ú¤Î¥Û¥¹¥È̾¤ò°·¤¨¤ë¤Ù¤­¤Ç¤¢¤ë(SHOULD)¡£ ¥æ¡¼¥¶¡¼¤¬¥¤¥ó¥¿¡¼¥Í¥Ã¥È¥Û¥¹¥È¤Î¼±Ê̾ðÊó¤òÆþÎϤ¹¤ë¾ì¹ç¡¢¾ï¤Ë (1)¥Û¥¹¥È¥É¥á¥¤¥ó̾¤«(2)¥É¥Ã¥ÈÉÕ¤­10¿Ê·Á¼°("#.#.#.#")¤ÎIP¥¢¥É¥ì¥¹ ¤Î¤É¤Á¤é¤«¤òÆþÎϤǤ­¤ë¤è¤¦¤Ë¤¹¤Ù¤­¤Ç¤¢¤ë(SHOULD)¡£¥Û¥¹¥È¤Ï¡¢ ÆþÎϤµ¤ì¤¿Ê¸»úÎó¤òDNS¤Ç¸¡º÷¤¹¤ëÁ°¤Ë¡¢Ê¸»úÎ󤬥ɥåÈÉÕ¤­10¿Ê·Á¼° 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Telnet¤ÎÍ×·ï¤Î³µÍ× | | | | |S| | | | | | |H| | | | | | |O|M| | | |S| |U|U| | | |H| |L|S| | |M|O| |D|T|µÓ | |U|U|M| | | | |S|L|A|N|N| | |T|D|Y|O|O|Ãí µ¡ ǽ | ޾ޏ޼ޮŽÝ | | | |T|T| -------------------------------------------------|--------|-|-|-|-|-|-- | | | | | | | ¥ª¥×¥·¥ç¥ó¤Î¥Í¥´¥·¥¨¡¼¥·¥ç¥ó |3.2.1 |x| | | | | ¥Í¥´¥·¥¨¡¼¥·¥ç¥ó¤Î¥ë¡¼¥×²óÈò |3.2.1 |x| | | | | ̤¥µ¥Ý¡¼¥È¤Î¥ª¥×¥·¥ç¥ó¤òµñÈÝ |3.2.1 |x| | | | | Àܳ¾å¤Ç¤¤¤Ä¤Ç¤â¥Í¥´¥·¥¨¡¼¥·¥ç¥ó¤Ç¤­¤ë |3.2.1 | |x| | | | ŽÈŽºŽÞ޼޴ް޼ޮŽÝ¤¬¼ºÇÔ¤·¤¿¤éŽÃŽÞŽÌŽ«ŽÙŽÄ¤ÎNVT¤Ë°Ü¹Ô |3.2.1 |x| | | | | Terminal-Type޵ŽÌŽß޼ޮŽÝ¤Ç¤Ï¸ø¼°¤ÊüËöŽÀ޲ŽÌŽß̾¤òÁ÷¿® |3.2.8 |x| | | | | Terminal-Type޵ŽÌŽß޼ޮŽÝ¼õ¿®¼Ô¤Ï¤¢¤é¤æ¤ë̾Á°¤ò¼õÍý |3.2.8 |x| | | | | Binary¡¢Suppress Go Ahead¥ª¥×¥·¥ç¥ó¤ò¼ÂÁõ |3.3.3 |x| | | | | Echo¡¢Status¡¢EOL¡¢Extended Options List޵ŽÌŽß޼ޮŽÝ |3.3.3 | |x| | | | ŬÀڤʾì¹çWindow Size¥ª¥×¥·¥ç¥ó¤ò¼ÂÁõ |3.3.3 | |x| | | | ¥µ¡¼¥Ð¡¼¤«¤é¥â¡¼¥É¤Î¥Í¥´¥·¥¨¡¼¥·¥ç¥ó¤ò³«»Ï |3.3.4 | |x| | | | ŽÕް޻ŽÞް¤¬ŽÈŽºŽÞ޼޴ް޼ޮŽÝ³«»Ï¤òÍ­¸ú/̵¸ú¤Ë¤Ç¤­¤ë |3.3.4 | |x| | | | | | | | | | | Go-Aheadµ¡Ç½ | | | | | | | GA¤òÁ÷¿®¤·¤Ê¤¤Ž»Ž°ŽÊŽÞް¤¬SUPPRESS-GA޵ŽÌŽß޼ޮŽÝ¤òŽÈŽºŽÞ޼޴ްŽÄ|3.2.2 |x| | | | | User/Server Telnet¤¬SUPPRESS-GA޵ŽÌŽß޼ޮŽÝ¤ò¼õÍý |3.2.2 |x| | | | | User Telnet¤¬GA¤ò̵»ë |3.2.2 | | |x| | | | | | | | | | À©¸æµ¡Ç½ | | | | | | | SE NOP DM IP AO AYT SB¤ò¥µ¥Ý¡¼¥È |3.2.3 |x| | | | | EOR EC EL Break¤ò¥µ¥Ý¡¼¥È |3.2.3 | | |x| | | ̤¥µ¥Ý¡¼¥È¤ÎÀ©¸æµ¡Ç½¤ò̵»ë |3.2.3 |x| | | | | ¶ÛµÞŽÃŽÞްŽÀ¼õ¿®»þUser/Server¤ÏDM¤Þ¤Ç¤ÎŽÃŽÞްŽÀ¤òÇË´þ |3.2.4 |x| | | | | User Telnet¤¬IP¡¢AO¡¢AYT¤Î¸å¤Ë"Synch"Á÷¿® |3.2.4 | |x| | | | Server Telnet¤¬IP¤ËÂФ·¤ÆSynch¤Ç±þÅú |3.2.4 | | |x| | | Server Telnet¤¬AO¤ËÂФ·¤ÆSynch¤Ç±þÅú |3.2.4 |x| | | | | User Telnet¤¬IPÁ÷¿®»þ¤Ë½ÐÎϤòÇÑ´þ²Äǽ |3.2.4 | |x| | | | | | | | | | | ¥¨¥ó¥³¡¼¥Ç¥£¥ó¥° | | | | | | | NVT¥â¡¼¥É¤ÇºÇ¾å°Ì¥Ó¥Ã¥È¤òÀßÄꤷ¤ÆÁ÷¿® |3.2.5 | | | |x| | ºÇ¾å°Ì¥Ó¥Ã¥È¤ò¥Ñ¥ê¥Æ¥£¥Ó¥Ã¥È¤È¤·¤ÆÁ÷¿® |3.2.5 | | | | |x| ºÇ¾å°ÌŽËŽÞޝŽÄ¤òޱŽÌŽßި޹ް޼ޮŽÝ¤ËÅϤ¹¤Ê¤éBinary¤òŽÈŽºŽÞ޼޴ްŽÄ |3.2.5 | |x| | | | IAC¤òŽÃŽÞްŽÀŽÊŽÞ޲ŽÄ¤È¤·¤ÆÁ÷¿®¤¹¤ë¾ì¹ç¤Ï¾ï¤ËÆó¤Ä³¤±¤ë|3.2.6 |x| | | | | Internet Engineering Task Force [Page 27] RFC1123 REMOTE LOGIN -- TELNET October 1989 ŽÊŽÞ޲ŽÅިްŽÓްŽÄŽÞ¤ÇIACŽÃŽÞްŽÀŽÊŽÞ޲ŽÄ¤òÁ÷¿®¤¹¤ë»þ¤ÏÆó¤Ä³¤±¤ë|3.2.7 |x| | | | | ¥Ð¥¤¥Ê¥ê¡¼¥â¡¼¥É¤Ç¤âTelnet¥³¥Þ¥ó¥É¤Ë¤Ï½¾¤¦ |3.2.7 |x| | | | | ¥Ð¥¤¥Ê¥ê¡¼¥â¡¼¥É¤Ç¹ÔËö½èÍý¡¢CR NUL¤Ø¤ÎÃÖ¤­´¹¤¨ |3.2.7 | | | | |x| | | | | | | | ¹ÔËö¤Ë´Ø¤¹¤ëµ¬Äê | | | | | | | Server¤Î¹ÔËö¤Ï¥í¡¼¥«¥ë¤Î¹ÔËö¤ÈƱ¤¸ |3.3.1 |x| | | | | ASCII¤ÎServer¤¬¹ÔËö¤È¤·¤ÆCR LF¤Þ¤¿¤ÏCR NUL¼õÍý |3.3.1 |x| | | | | User Telnet¤ÏCR LF¡¢CR NUL¡¢LF¤Î¤É¤ì¤Ç¤âÁ÷¿®²Ä |3.3.1 |x| | | | | ASCII¤Î¥æ¡¼¥¶¡¼¤¬CR LF/CR NUL¤òÁªÂò²Äǽ |3.3.1 | |x| | | | User Telnet¤Î¥Ç¥Õ¥©¥ë¥È¥â¡¼¥É¤ÏCR LF |3.3.1 | |x| | | | ÈóÂÐÏ÷¿¤ÎÍøÍѤǤϡ¢¹ÔËö¤È¤·¤ÆCR LF¤ò»ÈÍÑ |3.3.1 |x| | | | | | | | | | | | User Telnet¤Î¥¤¥ó¥¿¡¼¥Õ¥§¡¼¥¹ | | | | | | | ¤¢¤é¤æ¤ë7¥Ó¥Ã¥Èʸ»ú¤òÁ÷¿®¡¢¼õ¿® |3.4.1 | |x| | | | ŽÛް޶ŽÙ¤Ê޵ŽÍŽßŽÚްŽÃލŽÝޏŽÞ޼޽ŽÃŽÑ¤Î²ò¼á¤ò±ª²ó |3.4.1 | |x| | | | ¥¨¥¹¥±¡¼¥×ʸ»ú |3.4.1 |x| | | | | ¥¨¥¹¥±¡¼¥×ʸ»ú¤ò¥æ¡¼¥¶¡¼¤¬ÀßÄê²Äǽ |3.4.1 | |x| | | | 8¥Ó¥Ã¥ÈÃͤòÆþÎϤ¹¤ë¤¿¤á¤Î¥¨¥¹¥±¡¼¥× |3.4.1 | | |x| | | IP¡¢AO¡¢AYT¤òÆþÎϲÄǽ |3.4.2 |x| | | | | EC¡¢EL¡¢Break¤òÆþÎϲÄǽ |3.4.2 | |x| | | | TCPÀܳ¤Î¥¨¥é¡¼¤ò¥æ¡¼¥¶¡¼¤ËÄÌÃÎ |3.4.3 | |x| | | | Ǥ°Õ¤Î¥Ç¥Õ¥©¥ë¥È°Ê³°¤ÎÀܳ¥Ý¡¼¥È |3.4.4 | |x| | | | IPÁ÷¿®»þ¤Ë½ÐÎϤ¬ÇÑ´þ¤µ¤ì¤ë¤«¤ò»ØÄê²Äǽ |3.4.5 | |x| | | | ½ÐÎϥ⡼¥É¤ò¼êư¤ÇÉüµì²Äǽ |3.4.5 | |x| | | | | | | | | | | Internet Engineering Task Force [Page 28] RFC1123 FILE TRANSFER -- FTP October 1989 4. ¥Õ¥¡¥¤¥ëžÁ÷ 4.1 FTP(¥Õ¥¡¥¤¥ë¥È¥é¥ó¥¹¥Õ¥¡¡¼¥×¥í¥È¥³¥ë) 4.1.1 ƳÆþ FTP(¥Õ¥¡¥¤¥ë¥È¥é¥ó¥¹¥Õ¥¡¡¼¥×¥í¥È¥³¥ë)¤Ï¡¢¥Õ¥¡¥¤¥ëžÁ÷¤Ç»ÈÍÑ ¤µ¤ì¤ë¼çÍפʥ¤¥ó¥¿¡¼¥Í¥Ã¥Èɸ½à¤Ç¤¢¤ë¡£¸½ºß¤Î»ÅÍͤÏRFC 959 [FTP:1]¤Ë´Þ¤Þ¤ì¤Æ¤¤¤ë¡£ FTP¤Ï¡¢À©¸æÍѤȥǡ¼¥¿Å¾Á÷ÍѤÇÊÌ¡¹¤ÎTCPÀܳ¤òƱ»þ¤Ë»ÈÍѤ¹¤ë¡£ FTP¥×¥í¥È¥³¥ë¤Ï¿¤¯¤Îµ¡Ç½¤ò´Þ¤à¤¬¡¢¤½¤Î°ìÉô¤Ï°ìÈ̤˼ÂÁõ¤µ¤ì¤Æ ¤¤¤Ê¤¤¡£¤È¤Ï¸À¤¨¡¢FTP¤Î³Æµ¡Ç½¤Ë¤Ä¤¤¤Æ¡¢¾¯¤Ê¤¯¤È¤â°ì¤Ä¤Ï¼ÂÁõ¤¬ ¸ºß¤¹¤ë¡£RFC 959¤ÇÄêµÁ¤µ¤ì¤ëºÇ¾®¸Â¤Î¼ÂÁõ¤Ï¾®¤µ¤¹¤®¤¿¤¿¤á¡¢ ¤³¤³¤Ç¤Ï¼ã´³Â礭¤ÊºÇ¾®¸Â¤Î¼ÂÁõ¤òÄêµÁ¤¹¤ë¡£ ¥¤¥ó¥¿¡¼¥Í¥Ã¥È¥æ¡¼¥¶¡¼¤Ï¡¢ÉÔ´°Á´¤ÊFTP¼ÂÁõ¤Ë¤è¤Ã¤Æ²¿Ç¯¤âÉÔÍ×¤Ê Ééô¤ò¶¯¤¤¤é¤ì¤Æ¤­¤¿¡£¥×¥í¥È¥³¥ë¼ÂÁõ¼Ô¤Ï¡¢FTP¤ò¼ÂÁõ¤¹¤ë¤È¤¤¤¦ 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FTP¤¬TYPE¤Î°ã¤¤¤òǧ¼±¤·¤Ê¤¯¤Æ¤â¡¢ "QUOTE"¤ò»ÈÍѤ·¤Æ"TYPE A T"¤È»ØÄꤹ¤ë¤³¤È¤¬¤Ç¤­¤ë¡£ 4.1.4.3 ¥æ¡¼¥¶¡¼¤Ø¤Î±þÅúɽ¼¨ User FTP¤Ï¡¢¼õ¿®¤·¤¿¥¨¥é¡¼±þÅú¥á¥Ã¥»¡¼¥¸¤¹¤Ù¤Æ¤Ë¤ª¤¤¤Æ¡¢¼õ¿® ¤·¤¿Á´Ê¸¤ò¥æ¡¼¥¶¡¼¤Ëɽ¼¨¤¹¤Ù¤­¤Ç¤¢¤ë(SHOULD)¡£¤Þ¤¿¡¢ÌäÂê¤Î ¿ÇÃǤΤ¿¤á¤Ë¡¢Á÷¿®¤¹¤ë¥³¥Þ¥ó¥É¤¹¤Ù¤Æ¤È¼õ¿®¤·¤¿Á´Ê¸µÚ¤Ó±þÅú ¥³¡¼¥É¤òɽ¼¨¤¹¤ë"¾ÜºÙɽ¼¨(verbose)"¥â¡¼¥É¤ò»ý¤Ä¤Ù¤­¤Ç¤¢¤ë (SHOULD)¡£ 4.1.4.4 Ʊ´ü¤Î°Ý»ý User FTP¤Î¾õÂÖ¥Þ¥·¥ó¤Ï¡¢±þÅú¥á¥Ã¥»¡¼¥¸¤Î·çÍî¤äͽ´ü¤·¤Ê¤¤ ±þÅú¥á¥Ã¥»¡¼¥¸¤ÎÅþÃå¤òµöÍÆ¤·¤Æ¤Ç¤â¥µ¡¼¥Ð¡¼¤È¤Î¥³¥Þ¥ó¥ÉƱ´ü ¤ò°Ý»ý¤¹¤Ù¤­¤Ç¤¢¤ë(SHOULD)¡£ Internet Engineering Task Force [Page 40] RFC1123 FILE TRANSFER -- FTP October 1989 4.1.5 FTP¤ÎÍ×·ï¤Î³µÍ× | | | | |S| | | | | | |H| | | | | | |O|M| | | |S| |U|U| | | |H| |L|S| | |M|O| |D|T|µÓ | |U|U|M| | | | |S|L|A|N|N| | |T|D|Y|O|O|Ãí µ¡ ǽ | ¥»¥¯¥·¥ç¥ó | | | |T|T| -------------------------------------------|---------------|-|-|-|-|-|-- TYPE N¤ÈƱ¤¸¤Ê¤éTYPE T¤ò¼ÂÁõ |4.1.2.2 | |x| | | | ²Äǽ¤Ê¤é¥Õ¥¡¥¤¥ë/¥ì¥³¡¼¥ÉÊÑ´¹¤ò²ÄµÕ¤Ë¤¹¤ë |4.1.2.4 | |x| | | | User FTP¤Ï޽ŽÄިްŽÑŽÓްŽÄŽÞ¤ÇPORTŽºŽÏŽÝŽÄŽÞ¤òÁ÷¿® |4.1.2.5 | |x| | | | Server FTP¤ÏPASV¤ò¼ÂÁõ |4.1.2.6 |x| | | | | žÁ÷¤´¤È¤ËPASVȯ¹Ô |4.1.2.6 |x| | | | | NLST±þÅú¤òRETR¥³¥Þ¥ó¥É¤ÇÍøÍѤ·¤ä¤¹¤¯¤¹¤ë |4.1.2.7 |x| | | | | LIST¤ÈNLST¤Ç°ÅÌÛ¤ÎTYPE AN»ÈÍÑ |4.1.2.7 | |x| | | | ɸ½à³°¤Îµ¡Ç½¤ËÂФ·¤ÆSITE¥³¥Þ¥ó¥É»ÈÍÑ |4.1.2.8 | |x| | | | STOUŽºŽÏŽÝŽÄŽÞ¤Ï޻ްŽÊŽÞް¤¬»ØÄꤷ¤¿ŽÊŽßŽ½Ì¾¤òÊÖ¤¹ |4.1.2.9 |x| | | | | À©¸æÍÑÀܳ¤ÇTCP¤ÎREAD¶­³¦¤ò»ÈÍÑ |4.1.2.10 | | | | |x| | | | | | | | Server FTP¤ÏÀµ¤·¤¤±þÅúŽÌޫްŽÏޝŽÄ¤À¤±¤òÁ÷¿® |4.1.2.11 |x| | | | | Server FTP¤ÏŬÍѲÄǽ¤Ê¤éÄêµÁºÑ±þÅúŽºŽ°ŽÄŽÞ»ÈÍÑ |4.1.2.11 | |x| | | | ¥»¥¯¥·¥ç¥ó4.2¤Ë½¾¤¦¿·¤·¤¤±þÅú¥³¡¼¥É |4.1.2.11 | | |x| | | User FTP¤Ï±þÅú¤ÎºÇ¾å°Ì·å¤À¤±¤ò»ÈÍÑ |4.1.2.11 | |x| | | | User FTP¤ÏÊ£¿ô¹Ô¤ËÅϤë±þÅú¤ËÂбþ |4.1.2.11 |x| | | | | User FTP¤Ï421±þÅú¤òÆÃÊ̤˰·¤¦ |4.1.2.11 | | | |x| | | | | | | | | ŽÃŽÞŽÌŽ«ŽÙŽÄ¤ÎŽÃŽÞްŽÀžÁ÷ŽÎŽßްŽÄ¤ÏÀ©¸æÍÑ¤ÈÆ±¤¸IPޱŽÄŽÞŽÚ޽ |4.1.2.12 |x| | | | | User FTP¤¬SYNCH¡¢IP°Ê³°¤ÎTelnetŽºŽÏŽÝŽÄŽÞÁ÷¿® |4.1.2.12 | | | | |x| User FTP¤¬Telnet¥ª¥×¥·¥ç¥ó¤ò¥Í¥´¥·¥¨¡¼¥È |4.1.2.12 | | | | |x| Server FTP¤ÏTelnet¥ª¥×¥·¥ç¥ó¤ËÂбþ |4.1.2.12 |x| | | | | "¼Â¸³Åª"¥Ç¥£¥ì¥¯¥È¥ê´ØÏ¢¥³¥Þ¥ó¥É¤ËÂбþ |4.1.3.1 | |x| | | | Server FTP¤¬¥¢¥¤¥É¥ë¥¿¥¤¥à¥¢¥¦¥Èµ¡Ç½¤ò»ý¤Ä |4.1.3.2 | |x| | | | ¥¢¥¤¥É¥ë¥¿¥¤¥à¥¢¥¦¥È¤Î»þ´Ö¤ÏÀßÄê²Äǽ |4.1.3.2 | |x| | | | ¼õ¿®Â¦¤ÏºÆ³«ŽÏް޶ް¤òŽÃŽÞްŽÀ¼õ¿®ÃæÃÇÃÏÅÀ¤È¤¹¤ë |4.1.3.4 | |x| | | | Á÷¿®Â¦¤Ï110±þÅú¤ÈŽÃŽÞްŽÀ¤¬Æ±´ü¤·¤Æ¤¤¤ë¤ÈÁÛÄê |4.1.3.4 | | | | |x| | | | | | | | ¥µ¥Ý¡¼¥È¤¹¤ë¥¿¥¤¥×: | | | | | | | ASCII - Non-Print (AN) |4.1.2.13 |x| | | | | ASCII - Telnet (AT) -- AN¤ÈƱ¤¸¾ì¹ç |4.1.2.2 | |x| | | | ASCII - ¥­¥ã¥ê¥Ã¥¸À©¸æ (AC) |959 3.1.1.5.2 | | |x| | | EBCDIC - (¤¢¤é¤æ¤ë·Á¼°) |959 3.1.1.2 | | |x| | | IMAGE |4.1.2.1 |x| | | | | LOCAL 8 |4.1.2.1 |x| | | | | Internet Engineering Task Force [Page 41] RFC1123 FILE TRANSFER -- FTP October 1989 LOCAL m |4.1.2.1 | | |x| | |2 | | | | | | | ¥µ¥Ý¡¼¥È¤¹¤ë¥â¡¼¥É: | | | | | | | ¥¹¥È¥ê¡¼¥à |4.1.2.13 |x| | | | | ¥Ö¥í¥Ã¥¯ |959 3.4.2 | | |x| | | | | | | | | | ¥µ¥Ý¡¼¥È¤¹¤ë¥Ç¡¼¥¿¹½Â¤ | | | | | | | ¥Õ¥¡¥¤¥ë |4.1.2.13 |x| | | | | ¥ì¥³¡¼¥É |4.1.2.13 |x| | | | |3 ¥Ú¡¼¥¸ |4.1.2.3 | | | |x| | | | | | | | | ¥µ¥Ý¡¼¥È¤¹¤ë¥³¥Þ¥ó¥É: | | | | | | | USER |4.1.2.13 |x| | | | | PASS |4.1.2.13 |x| | | | | ACCT |4.1.2.13 |x| | | | | CWD |4.1.2.13 |x| | | | | CDUP |4.1.2.13 |x| | | | | SMNT |959 5.3.1 | | |x| | | REIN |959 5.3.1 | | |x| | | QUIT |4.1.2.13 |x| | | | | | | | | | | | PORT |4.1.2.13 |x| | | | | PASV |4.1.2.6 |x| | | | | TYPE |4.1.2.13 |x| | | | |1 STRU |4.1.2.13 |x| | | | |1 MODE |4.1.2.13 |x| | | | |1 | | | | | | | RETR |4.1.2.13 |x| | | | | STOR |4.1.2.13 |x| | | | | STOU |959 5.3.1 | | |x| | | APPE |4.1.2.13 |x| | | | | ALLO |959 5.3.1 | | |x| | | REST |959 5.3.1 | | |x| | | RNFR |4.1.2.13 |x| | | | | RNTO |4.1.2.13 |x| | | | | ABOR |959 5.3.1 | | |x| | | DELE |4.1.2.13 |x| | | | | RMD |4.1.2.13 |x| | | | | MKD |4.1.2.13 |x| | | | | PWD |4.1.2.13 |x| | | | | LIST |4.1.2.13 |x| | | | | NLST |4.1.2.13 |x| | | | | SITE |4.1.2.8 | | |x| | | STAT |4.1.2.13 |x| | | | | SYST |4.1.2.13 |x| | | | | HELP |4.1.2.13 |x| | | | | NOOP |4.1.2.13 |x| | | | | | | | | | | | Internet Engineering Task Force [Page 42] RFC1123 FILE TRANSFER -- FTP October 1989 ¥æ¡¼¥¶¡¼¥¤¥ó¥¿¡¼¥Õ¥§¡¼¥¹: | | | | | | | Ǥ°Õ¤Îʸ»úÎó¤Î¥Ñ¥¹Ì¾ |4.1.4.1 |x| | | | | "QUOTE"¥³¥Þ¥ó¥É¤Î¼ÂÁõ |4.1.4.2 |x| | | | | À©¸æ¥³¥Þ¥ó¥É¤òľ¤Á¤ËžÁ÷ |4.1.4.2 | |x| | | | ¥¨¥é¡¼¥á¥Ã¥»¡¼¥¸¤ò¥æ¡¼¥¶¡¼¤Ëɽ¼¨ |4.1.4.3 | |x| | | | ¾ÜºÙɽ¼¨¥â¡¼¥É¤ò»ý¤Ä |4.1.4.3 | |x| | | | ¥µ¡¼¥Ð¡¼¤È¤ÎƱ´ü¤Î°Ý»ý |4.1.4.4 | |x| | | | µÓÃí: (1) ËÜʸ½ñ¤ÎÁ°¤ÎÉôʬ¤Ç¡¢¤³¤ÎÃͤ˴ؤ·¤Æ½Ò¤Ù¤é¤ì¤¿ÆâÍÆ¤ò´Þ¤à (2) m¤Ï¥á¥â¥ê¥ï¡¼¥É¤Î¥Ó¥Ã¥È¿ô (3) ¥ì¥³¡¼¥É¹½Â¤¤Î¥Õ¥¡¥¤¥ë¥·¥¹¥Æ¥à¤ò»ý¤Ä¥Û¥¹¥È¤ËÂФ¹¤ëÍ×µá¤Ç¤¢¤ê¡¢ ¾¤Î¥Û¥¹¥È¤Î¾ì¹ç¤ÏǤ°Õ Internet Engineering Task Force [Page 43] RFC1123 FILE TRANSFER -- TFTP October 1989 4.2 TFTP(¥È¥ê¥Ó¥¢¥ë¥Õ¥¡¥¤¥ë¥È¥é¥ó¥¹¥Õ¥¡¡¼¥×¥í¥È¥³¥ë) 4.2.1 ƳÆþ TFTP(¥È¥ê¥Ó¥¢¥ë¥Õ¥¡¥¤¥ë¥È¥é¥ó¥¹¥Õ¥¡¡¼¥×¥í¥È¥³¥ë)¤ÏRFC 783 [TFTP:1]¤ÇÄêµÁ¤µ¤ì¤Æ¤¤¤ë¡£ TFTP¤Ï¡¢stop-and-waitÊý¼°¤Îñ½ã¤Ê³Îǧ±þÅú¤ò»ÈÍѤ¹¤ë¤³¤È¤Ç¡¢ UDP¤ò¥È¥é¥ó¥¹¥Ý¡¼¥È¥×¥í¥È¥³¥ë¤È¤·¤Æ»ÈÍѤ·¤Ê¤¬¤é¤â¿®ÍêÀ­¤Î ¤¢¤ëÇÛÁ÷¤òÄ󶡤¹¤ë¡£TFTP¤Ïñ°ì¤Î512¥ª¥¯¥Æ¥Ã¥È¥»¥°¥á¥ó¥È¤Î ¼Â¸ú¥¦¥¤¥ó¥É¥¦¤·¤«»ý¤¿¤Ê¤¤¤Î¤Ç¡¢ÃÙ±ä¡ßÂÓ°è¤ÎÀѤ¬¾®¤µ¤¤¥Ñ¥¹¾å ¤Ç¤·¤«Îɹ¥¤Ê¥Ñ¥Õ¥©¡¼¥Þ¥ó¥¹¤òÄ󶡤Ǥ­¤Ê¤¤¡£TFTP¥Õ¥¡¥¤¥ë ¥¤¥ó¥¿¡¼¥Õ¥§¡¼¥¹¤ÏÈó¾ï¤Ë´Êñ¤Ê¤â¤Î¤Ç¡¢¥¢¥¯¥»¥¹À©¸æ¤ä ¥»¥­¥å¥ê¥Æ¥£µ¡Ç½¤ÏÄ󶡤·¤Ê¤¤¡£ TFTP¤ÏEPROMÆâ¤ËÍÆ°×¤Ë¼ÂÁõ¤µ¤ì¤ë¤Û¤É½½Ê¬Ã±½ã¤Ç¾®¤µ¤¤¤Î¤Ç¡¢¤½¤Î ºÇ¤â½ÅÍפÊŬÍÑÎã¤Ï¡¢¥í¡¼¥«¥ë¥Í¥Ã¥È¥ï¡¼¥¯¾å¤Ç¥Û¥¹¥È¤ò¥Ö¡¼¥È ¤µ¤»¤ë¤³¤È¤Ç¤¢¤ë[BOOT:1, BOOT:2]¡£¥Ù¥ó¥À¡¼¤Ë¤Ï¡¢¥Ö¡¼¥È¤Ë¤ª¤±¤ë TFTP¤Î»ÈÍѤò¥µ¥Ý¡¼¥È¤¹¤ë¤è¤¦´«¹ð¤¹¤ë¡£ 4.2.2 ¥×¥í¥È¥³¥ë¤Î¥¦¥©¡¼¥¯¥¹¥ë¡¼ TFTP»ÅÍÍ[TFTP:1]¤ÏµÄÏÀ¤Î;ÃϤò»Ä¤¹·Á(open style)¤Ç½ñ¤«¤ì¤Æ ¤ª¤ê¡¢¥×¥í¥È¥³¥ë¤Î¿¤¯¤ÎÉôʬ¤ò´°Á´¤Ë¤Ïµ¬Äꤷ¤Æ¤¤¤Ê¤¤¡£ 4.2.2.1 žÁ÷¥â¡¼¥É: RFC 783¤Î3¥Ú¡¼¥¸ žÁ÷¥â¡¼¥É"mail"¤Ï¥µ¥Ý¡¼¥È¤µ¤ì¤ë¤Ù¤­¤Ç¤Ï¤Ê¤¤(SHOULD NOT)¡£ 4.2.2.2 UDP¥Ø¥Ã¥À¡¼: RFC 783¤Î17¥Ú¡¼¥¸ UDP¥Ø¥Ã¥À¡¼¤Î¥Ç¡¼¥¿¥°¥é¥àĹ(Length)¥Õ¥£¡¼¥ë¥É¤Ï¸í¤Ã¤ÆÄêµÁ ¤µ¤ì¤Æ¤¤¤ë¡£¥Ç¡¼¥¿¥°¥é¥àŤÏUDP¥Ø¥Ã¥À¡¼Ä¹(8)¤ò´Þ¤à¡£(ÌõÃí: ³ºÅö²Õ½ê¤Ï"Number of bytes in packet after Datagram header")¡£ 4.2.3 ¸ÇÍ­¤ÎÌäÂê 4.2.3.1 SAS(Sorcerer's Apprentice Syndrome) ¥×¥í¥È¥³¥ë»ÅÍͤˤϡ¢"SAS(Sorcerer's Apprentice Syndrome)" ¤È¤·¤ÆÃΤé¤ì¤ë¿¼¹ï¤Ê¥Ð¥°¤¬¤¢¤ë¡£¤³¤Î¥Ð¥°¤¬Å¾Á÷¤Î¸í¤ê¤ò °ú¤­µ¯¤³¤¹¤³¤È¤Ï¤Ê¤¤¤¬(žÁ÷¤¬´°Î»¤·¤¿¤Ê¤é¥Õ¥¡¥¤¥ë¤Ï¾ï¤Ë Àµ¤·¤¯Å¾Á÷¤µ¤ì¤Æ¤¤¤ë)¡¢²áÅ٤ʺÆÁ÷¤òÀ¸¤¸¤µ¤»¤ë²ÄǽÀ­¤¬¤¢¤ê¡¢ ¤½¤ì¤Ë¤è¤Ã¤ÆÅ¾Á÷¤Î¥¿¥¤¥à¥¢¥¦¥È¤¬È¯À¸¤¹¤ë¤«¤â¤·¤ì¤Ê¤¤¡£ ¼ÂÁõ¤Ï¡¢¤³¤ÎÌäÂê¤ËÂФ¹¤ë½¤Àµ¤ò´Þ¤Þ¤Ê¤±¤ì¤Ð¤Ê¤é¤Ê¤¤(MUST)¡£ ¶ñÂÎŪ¤Ë¡¢Á÷¿®¼Ô(DATA¥Ñ¥±¥Ã¥ÈÀ¸À®Â¦)¤Ï¡¢½ÅÊ£ACK¤ò¼õ¿®¤·¤¿ ºÝ¤Ë½ÅÊ£ACK¤¬»ØÄꤹ¤ëDATA¥Ñ¥±¥Ã¥È¤òÀäÂФ˺ÆÁ÷¤·¤Æ¤Ï ¤Ê¤é¤Ê¤¤¡£ Internet Engineering Task Force [Page 44] RFC1123 FILE TRANSFER -- TFTP October 1989 ¡Ú µÄÏÀ ¡Û ¤³¤Î¥Ð¥°¤Ï¡¢¤É¤Á¤é¤«ÊÒÊý¤¬¸Å¤¤½ÅÊ£¥Ç¡¼¥¿¥°¥é¥à¤ò¼õ¿® ¤·¤¿ºÝ¤Ë¡¢½ÅÊ£¥Ç¡¼¥¿¥°¥é¥à¤¬»ØÄꤹ¤ë¥Ç¡¼¥¿¥°¥é¥à¤ò ºÆÁ÷¤¹¤ë¤È¤¤¤¦¥×¥í¥È¥³¥ë¥ë¡¼¥ë¤Ë¤è¤Ã¤Æ°ú¤­µ¯¤³¤µ¤ì¤ë¡£ ¥Í¥Ã¥È¥ï¡¼¥¯Æâ¤Ç¥Ñ¥±¥Ã¥È¤ËÃٱ䤬À¸¤¸¡¢¤É¤Á¤é¤«ÊÒÊý¤¬ ¥¿¥¤¥à¥¢¥¦¥È¤·¤Æ¥Ñ¥±¥Ã¥È¤¬ºÆÁ÷¤µ¤ì¤¿¸å¤ËÃٱ䤷¤¿ ¥Ñ¥±¥Ã¥È¤¬Àµ¤·¤¯ÇÛÁ÷¤µ¤ì¤¿¾ì¹ç¡¢±þÅú¤Î½ÅÊ£¤·¤¿¥³¥Ô¡¼ ¤¬À¸À®¤µ¤ì¤ë¡£Âиþ¦¤¬¤³¤Î½ÅÊ£¤·¤¿±þÅú¤Ë½ÅÊ£¤·¤¿¥Ç¡¼¥¿ ¥°¥é¥à¤Ç±þÅú¤¹¤ë¤È¡¢Å¾Á÷¤Î»Ä¤ê´ü´Ö¡¢(¥Ç¡¼¥¿¥°¥é¥à¤¬ 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TFTP¥µ¡¼¥Ð¡¼¼ÂÁõ¤Ï¡¢TFTP½èÍý¤Ç¤É¤Î¤è¤¦¤Ê¥Ñ¥¹Ì¾¤¬µöÍÆ¤µ¤ì¤ë¤« ¤Ë¤Ä¤¤¤Æ¡¢²¿¤é¤«¤ÎÀßÄê²Äǽ¤Ê¥¢¥¯¥»¥¹À©¸æ¤ò´Þ¤à¤Ù¤­¤Ç¤¢¤ë (SHOULD)¡£ 4.2.3.5 ¥Ö¥í¡¼¥É¥­¥ã¥¹¥È¥ê¥¯¥¨¥¹¥È ¥Ö¥í¡¼¥É¥­¥ã¥¹¥È¥¢¥É¥ì¥¹¤Ë°¸¤Æ¤é¤ì¤¿TFTP¥ê¥¯¥¨¥¹¥È¤Ï¡¢ÌÛ¤Ã¤Æ Ìµ»ë¤µ¤ì¤ë¤Ù¤­¤Ç¤¢¤ë(SHOULD)¡£ ¡Ú µÄÏÀ ¡Û TFTP¤Î¥¢¥¯¥»¥¹À©¸æµ¡Ç½¤ÏÀȼå¤Ê¤Î¤Ç¡¢¥é¥ó¥À¥à¤Ê¥Í¥Ã¥È ¥ï¡¼¥¯¤ËÂФ¹¤ëTFTP¥ê¥¯¥¨¥¹¥È¤Î¥Ö¥í¡¼¥É¥­¥ã¥¹¥È¤Ï¡¢½ÅÂç ¤Ê¥»¥­¥å¥ê¥Æ¥£¥Û¡¼¥ë¤òÀ¸¤¸¤µ¤»¤ë²ÄǽÀ­¤¬¤¢¤ë¡£ Internet Engineering Task Force [Page 46] RFC1123 FILE TRANSFER -- TFTP October 1989 4.2.4 TFTP¤ÎÍ×·ï¤Î³µÍ× | | | | |S| | | | | | |H| | | | | | |O|M| | | |S| |U|U| | | |H| |L|S| | |M|O| |D|T|µÓ | |U|U|M| | | | |S|L|A|N|N| | |T|D|Y|O|O|Ãí µ¡ ǽ | ޾ޏ޼ޮŽÝ | | | |T|T| -------------------------------------------------|--------|-|-|-|-|-|-- SAS(Sorcerer's Apprentice Syndrome)¤Î½¤Àµ¤ò´Þ¤à |4.2.3.1 |x| | | | | žÁ÷¥â¡¼¥É: | | | | | | | netascii |RFC 783 |x| | | | | octet |RFC 783 |x| | | | | mail |4.2.2.1 | | | |x| | ³ÈÄ¥ |4.2.3.3 | | |x| | | Ŭ±þ¥¿¥¤¥à¥¢¥¦¥È¤Î»ÈÍÑ |4.2.3.2 |x| | | | | ¥¢¥¯¥»¥¹À©¸æ¤òÀßÄê²Äǽ |4.2.3.4 | |x| | | | ¥Ö¥í¡¼¥É¥­¥ã¥¹¥È¥ê¥¯¥¨¥¹¥È¤òÌۤäÆÌµ»ë |4.2.3.5 | |x| | | | -------------------------------------------------|--------|-|-|-|-|-|-- -------------------------------------------------|--------|-|-|-|-|-|-- Internet Engineering Task Force [Page 47] RFC1123 MAIL -- SMTP & RFC-822 October 1989 5. ÅŻҥ᡼¥ë -- SMTPµÚ¤ÓRFC 822 5.1 ƳÆþ TCP/IP¥×¥í¥È¥³¥ë¥¹¥¤¡¼¥È¤Ç¤Ï¡¢RFC 822[SMTP:2]¤Çµ¬Äꤵ¤ì¤¿ ¥Õ¥©¡¼¥Þ¥Ã¥È¤ÎÅŻҥ᡼¥ë¤¬RFC 821[SMTP:1]¤ÇÄêµÁ¤µ¤ì¤¿SMTP (Simple Mail Transfer Protocol)¤ò»ÈÍѤ·¤ÆÁ÷¿®¤µ¤ì¤ë¡£ SMTP¤Ï²¿Ç¯¤âÊѹ¹¤µ¤ì¤Æ¤¤¤Ê¤¤¤¬¡¢¥¤¥ó¥¿¡¼¥Í¥Ã¥È¥³¥ß¥å¥Ë¥Æ¥£¤ÏSMTP ¤Î»ÈÍÑÊýË¡¤Ë´ö¤Ä¤«¤ÎÊѹ¹¤ò²Ã¤¨¤¿¡£ÆÃ¤Ë¡¢DNS(Domain Name System)ÍøÍÑ ¤Ø¤Îž´¹¤Ë¤è¤ê¡¢¥¢¥É¥ì¥¹¥Õ¥©¡¼¥Þ¥Ã¥È¤ä¥á¡¼¥ë¥ë¡¼¥Æ¥£¥ó¥°¤ËÊѹ¹¤¬ À¸¤¸¤¿¡£ËÜ¥»¥¯¥·¥ç¥ó¤Ï¡¢ÆÉ¼Ô¤¬DNS¤Î³µÇ°¤ÈÍѸì¤ËÀºÄ̤·¤Æ¤¤¤ë¤³¤È ¤òÁ°Äó¤È¤¹¤ë¡£DNS¤ÎÍ×·ï¤Ë¤Ä¤¤¤Æ¤Ï¥»¥¯¥·¥ç¥ó6.1¤ÇÍ¿¤¨¤é¤ì¤ë¡£ RFC 822¤Ï¡¢ÅŻҥ᡼¥ë¥á¥Ã¥»¡¼¥¸¤Î¥¤¥ó¥¿¡¼¥Í¥Ã¥Èɸ½à¥Õ¥©¡¼¥Þ¥Ã¥È ¤òµ¬Äꤷ¤Æ¤¤¤ë¡£RFC 822¤Ï¸Å¤¤É¸½à¤ÎRFC 733¤ËÂå¤ï¤ë¤â¤Î¤Ç¤¢¤ë¡£ RFC 733¤ÏÇѻߤµ¤ì¤Æ¤¤¤ë¤¬¡¢°ìÉô¤Î¾ì½ê¤Ç¤Ï°ÍÁ³¤È¤·¤Æ»ÈÍѤµ¤ì¤Æ ¤¤¤ë²ÄǽÀ­¤¬¤¢¤ë¡£Æó¤Ä¤Î¥Õ¥©¡¼¥Þ¥Ã¥È¤Ï¡¢Ã±½ã¤ËÈÖ¹æ("822"¤ä"733") ¤Ç»²¾È¤µ¤ì¤ë¤³¤È¤â¤¢¤ë¡£ RFC 822¤Ï¡¢SMTP°Ê³°¤Î¥á¡¼¥ëÁ÷¿®¥×¥í¥È¥³¥ë¤ò»ÈÍѤ¹¤ë¥¤¥ó¥¿¡¼¥Í¥Ã¥È °Ê³°¤Î¥á¡¼¥ë´Ä¶­¤Ç¤â»ÈÍѤµ¤ì¤Æ¤¤¤ë¡£¤Þ¤¿¡¢SMTP¤â¡¢¥¤¥ó¥¿¡¼¥Í¥Ã¥È °Ê³°¤Î´ö¤Ä¤«¤Î´Ä¶­¤Ë¤¢¤ï¤»¤ÆÅ¬¹çºî¶È¤¬¤Ê¤µ¤ì¤Æ¤­¤Æ¤¤¤ë¡£ ËÜʸ½ñ¤Ï¡¢SMTP¤ÈRFC 822¤Î»ÈÍѤ˴ؤ¹¤ë¥ë¡¼¥ë¤òÄ󼨤¹¤ë¤¬¡¢¤½¤ì¤Ï ¥¤¥ó¥¿¡¼¥Í¥Ã¥È´Ä¶­¤À¤±¤òÂоݤȤ·¤¿¤â¤Î¤Ç¤¢¤ë¤³¤È¤ËÃí°Õ¤»¤è¡£ ¤³¤ì¤é¤Î¥×¥í¥È¥³¥ë¤ò»ÈÍѤ¹¤ë¾¤Î¥á¡¼¥ë´Ä¶­¤Ï¡¢¤½¤ì¤¾¤ìÆÈ¼«¤Î ¥ë¡¼¥ë¤ò»ý¤Ä¾ì¹ç¤¬¤¢¤ë¤³¤È¤¬Í½ÁÛ¤µ¤ì¤ë¡£ 5.2 ¥×¥í¥È¥³¥ë¤Î¥¦¥©¡¼¥¯¥¹¥ë¡¼ ËÜ¥»¥¯¥·¥ç¥ó¤Ï¡¢RFC 821¤ÈRFC 822¤ÎξÊý¤ò¥«¥Ð¡¼¤¹¤ë¡£ RFC 821¤ÎSMTP»ÅÍͤÏÌÀ³Î¤Ç¤¢¤ê¡¢Â¿¿ô¤ÎÎã¤ò´Þ¤à¤¿¤á¡¢¼ÂÁõ¼Ô¤¬Íý²ò ¤·¤Ë¤¯¤¤¤È´¶¤¸¤ë¤³¤È¤Ï¤Ê¤¤¤Ï¤º¤Ç¤¢¤ë¡£ËÜ¥»¥¯¥·¥ç¥ó¤Ï¡¢¸½ºß¤Î»ÈÍÑË¡ ¤Ë½àµò¤¹¤ë¤è¤¦¤Ëñ¤ËRFC 821¤ò¹¹¿·¤·¡¢¤½¤Î°ìÉô¤ËÃí¼á¤ò²Ã¤¨¤ë¤À¤± ¤Ç¤¢¤ë¡£ RFC 822¤ÏŤ¯Ì©ÅÙ¤ÎÇ»¤¤Ê¸½ñ¤Ç¡¢É½¸½ÎϤι⤤¹½Ê¸¤òÄêµÁ¤·¤Æ¤¤¤ë¡£ »Äǰ¤Ê¤³¤È¤Ë¡¢RFC 822¤Î¼ÂÁõ¤ÏÉÔ´°Á´¤Ê¤â¤Î¤ä·ç´Ù¤Î¤¢¤ë¤â¤Î¤ò¤è¤¯ ¸«¤«¤±¤ë¡£¼ÂºÝ¡¢RFC 822¤Çµ¬Äꤵ¤ì¤ë¿¿ô¤Î¥Õ¥©¡¼¥Þ¥Ã¥È¤Î¤Û¤Ü¤¹¤Ù¤Æ¤¬ »ÈÍѤµ¤ì¤Æ¤¤¤ë¤¿¤á¡¢¼ÂÁõ¤Ï°ìÈ̤ËRFC 822¹½Ê¸¤Î¤¹¤Ù¤Æ¤òǧ¼±¤·¡¢Àµ¤·¤¯ ²ò¼á¤¹¤ëɬÍפ¬¤¢¤ë¡£ 5.2.1 SMTP¥â¥Ç¥ë: RFC 821 ¥»¥¯¥·¥ç¥ó2 ¡Ú µÄÏÀ ¡Û ¥á¡¼¥ë¤Ï¡¢¥¯¥é¥¤¥¢¥ó¥È¤Ç¤¢¤ë"Sender-SMTP(Á÷¿®Â¦SMTP)"¤È¡¢ ¥µ¡¼¥Ð¡¼¤Ç¤¢¤ë"Receiver-SMTP(¼õ¿®Â¦SMTP)"¤Î´Ö¤Ç¤ä¤ê¤È¤ê ¤µ¤ì¤ë°ìÏ¢¤Î¥ê¥¯¥¨¥¹¥È/±þÅú¥È¥é¥ó¥¶¥¯¥·¥ç¥ó¤Ë¤è¤Ã¤ÆÁ÷¿® ¤µ¤ì¤ë¡£ Internet Engineering Task Force [Page 48] RFC1123 MAIL -- SMTP & RFC-822 October 1989 ¤³¤ì¤é¤Î¥È¥é¥ó¥¶¥¯¥·¥ç¥ó¤Ç¤Ï¡¢(1)¥Ø¥Ã¥À¡¼¤È¥Ü¥Ç¥£¤Ç¹½À® ¤µ¤ì¤¿Å¬Àڤʥá¥Ã¥»¡¼¥¸¡¢(2)"¥¨¥ó¥Ù¥í¡¼¥×"¤È¸Æ¤Ð¤ì¤ëSMTP¤Î Á÷¿®¸µ¥¢¥É¥ì¥¹µÚ¤Ó°¸À襢¥É¥ì¥¹¤¬ÅϤµ¤ì¤ë¡£ SMTP¥×¥í¥°¥é¥à¤Ï¡¢X.400¤Î¥á¥Ã¥»¡¼¥¸Á÷¿®¥¨¡¼¥¸¥§¥ó¥È(MTA) ¤È»÷¤Æ¤¤¤ë¡£¤¤¤º¤ì¡¢¥×¥í¥È¥³¥ë¥½¥Õ¥È¥¦¥§¥¢¤Ë¤â¤¦°ì¤Ä¤Î³¬ÁØ ¤¬ÀßÄꤵ¤ì¤ë¤À¤í¤¦¡£¤½¤ì¤Ï¥¨¥ó¥É¥æ¡¼¥¶¡¼¤Ë¤è¤ê¶á¤¯¡¢RFC 822¥á¥Ã¥»¡¼¥¸¥Ø¥Ã¥À¡¼¤ÎÀ¸À®¤ä²òÀϤÎÀÕǤ¤ò»ý¤Ä¤â¤Î¤Ç¤¢¤ë¡£ ¤³¤Î¹½À®Í×ÁǤϡ¢X.400¤Ç¤Ï"¥æ¡¼¥¶¡¼¥¨¡¼¥¸¥§¥ó¥È"¤È¤·¤Æ ÃΤé¤ì¤ë¤â¤Î¤Ç¡¢ËÜʸ½ñ¤Ç¤â¤³¤ÎÍѸì¤ò»ÈÍѤ¹¤ë¡£¥æ¡¼¥¶¡¼ ¥¨¡¼¥¸¥§¥ó¥È¤ÈSMTP¼ÂÁõ¤Ï¥×¥í¥È¥³¥ë¤Î°Û¤Ê¤ë³¬ÁØ¤ÇÆ°ºî¤¹¤ë ¤¿¤á¡¢¤³¤ì¤é¤Î´Ö¤Ë¤ÏÌÀ³Î¤ÊÏÀÍýŪ¶èÊ̤¬Â¸ºß¤¹¤ë¡£¤·¤«¤·¡¢ ¤³¤Î¶èÊ̤ϥ¤¥ó¥¿¡¼¥Í¥Ã¥È¥á¡¼¥ë¼ÂÁõ¤Î°ìÈÌŪ¤Ê¹½Â¤¤òÀµ³Î¤Ë È¿±Ç¤·¤Æ¤¤¤Ê¤¤¤«¤â¤·¤ì¤Ê¤¤¤³¤È¤ËÃí°Õ¤»¤è¡£Â¿¤¯¤Î¾ì¹ç¡¢ "¥á¡¼¥é¡¼"¤È¤·¤ÆÃΤé¤ì¤ë¥×¥í¥°¥é¥à¤¬Â¸ºß¤·¡¢¤½¤ì¤¬SMTP¤Ë ²Ã¤¨¤Æ¥æ¡¼¥¶¡¼¥¨¡¼¥¸¥§¥ó¥Èµ¡Ç½¤Î°ìÉô¤ò¼ÂÁõ¤·¤Æ¤¤¤ë¡£ »Ä¤ê¤Î¥æ¡¼¥¶¡¼¥¨¡¼¥¸¥§¥ó¥Èµ¡Ç½¤Ï¡¢¥á¡¼¥ë¤ÎÆþÎϤȱÜÍ÷¤Ç »ÈÍѤµ¤ì¤ë¥æ¡¼¥¶¡¼¥¤¥ó¥¿¡¼¥Õ¥§¡¼¥¹¤Ë´Þ¤Þ¤ì¤ë¡£ SMTP¥¨¥ó¥Ù¥í¡¼¥×¤Ï¡¢µ¯ÅÀ¤È¤Ê¤ë¥µ¥¤¥È¤Ë¤ª¤¤¤Æ¥á¥Ã¥»¡¼¥¸¤¬ Sender-SMTP¥×¥í¥°¥é¥à¤Î¥­¥å¡¼¤Ë½é¤á¤ÆÆþ¤ì¤é¤ì¤ëºÝ¤Ë¡¢ÄÌ¾ï ¤Ï¥æ¡¼¥¶¡¼¥¨¡¼¥¸¥§¥ó¥È¤Ë¤è¤Ã¤Æ¹½À®¤µ¤ì¤ë¡£¥¨¥ó¥Ù¥í¡¼¥× ¥¢¥É¥ì¥¹¤Ï¡¢¥á¥Ã¥»¡¼¥¸¥Ø¥Ã¥À¡¼¤Î¾ðÊó¤ä¡¢¥æ¡¼¥¶¡¼¥¤¥ó¥¿¡¼ ¥Õ¥§¡¼¥¹¤«¤éÄ󶡤µ¤ì¤ë¾ðÊó(Î㤨¤Ðbcc:¥ê¥¯¥¨¥¹¥È¤ò¼ÂÁõ¤¹¤ë ¤¿¤á¤Î¾ðÊó)¡¢¥í¡¼¥«¥ë¤ÊÀßÄê¾ðÊó(Î㤨¤Ð¥á¡¼¥ê¥ó¥°¥ê¥¹¥È¤Î Ÿ³«)¤Ê¤É¤«¤éƳ½Ð¤µ¤ì¤ë¡£°ìÈ̤ˡ¢¥á¥Ã¥»¡¼¥¸ÇÛÁ÷¤ÎÅÓÃæ¤Ç ¥Ø¥Ã¥À¡¼¤«¤éºÆÅÙSMTP¥¨¥ó¥Ù¥í¡¼¥×¤òƳ½Ð¤¹¤ë¤³¤È¤Ï¤Ç¤­¤Ê¤¤ ¤¿¤á¡¢¥¨¥ó¥Ù¥í¡¼¥×¤Ï¡¢SMTP¤ÎMAIL¡¢RCPT¥³¥Þ¥ó¥É¤ò»ÈÍѤ·¤Æ ¥á¥Ã¥»¡¼¥¸¤½¤ì¼«ÂΤȤÏÊ̤ËÁ÷¿®¤µ¤ì¤ë¡£ RFC 821¤ÎËÜʸ¤Ï¡¢¥Û¥¹¥È¤Î¸Ä¡¹¤Î¥æ¡¼¥¶¡¼¤ËÂФ·¤Æ¥á¡¼¥ë¤¬ ÇÛÁ÷¤µ¤ì¤ë¤È¼¨º¶¤·¤Æ¤¤¤ë¡£¥É¥á¥¤¥ó¥·¥¹¥Æ¥à¤ÈMX¥ê¥½¡¼¥¹ ¥ì¥³¡¼¥É¤ò»ÈÍѤ·¤¿¥á¡¼¥ë¥ë¡¼¥Æ¥£¥ó¥°¤Î½Ð¸½¤Ëȼ¤¤¡¢¼ÂÁõ¼Ô ¤Ï¡¢¥É¥á¥¤¥ó¤Î¥æ¡¼¥¶¡¼¤Ë¥á¡¼¥ë¤òÇÛÁ÷¤·¤è¤¦¤È¹Í¤¨¤ë¤è¤¦¤Ë ¤¹¤Ù¤­¤Ç¤¢¤ë¡£¥É¥á¥¤¥ó¤ÏÆÃÄê¤Î¥Û¥¹¥È¤Ç¤¢¤ë¤«¤â¤·¤ì¤Ê¤¤¤·¡¢ ¤½¤¦¤Ç¤Ê¤¤¤«¤â¤·¤ì¤Ê¤¤¤¬¡¢¤³¤ì¤Ï¡¢SMTP¤¬¥Û¥¹¥È¥Ä¡¼¥Û¥¹¥È ·¿¤Î¥á¡¼¥ë¸ò´¹¥×¥í¥°¥é¥à¤Ç¤¢¤ë¤È¤¤¤¦»ö¼Â¤òÊѹ¹"¤·¤Ê¤¤"¡£ 5.2.2 Àµµ¬²½: RFC 821 ¥»¥¯¥·¥ç¥ó3.1 Sender-SMTP¤¬MAIL¥³¥Þ¥ó¥É¤äRCPT¥³¥Þ¥ó¥É¤ÇÁ÷¿®¤¹¤ë¥¢¥É¥ì¥¹¤Ë ´Þ¤Þ¤ì¤ë¥É¥á¥¤¥ó̾¤Ï¡¢"Àµµ¬²½"¤µ¤ì¤Æ¤¤¤Ê¤±¤ì¤Ð¤Ê¤é¤Ê¤¤(MUST)¡£ ¸À¤¤´¹¤¨¤ë¤È¡¢Sender-SMTP¤¬Á÷¿®¤¹¤ë¤â¤Î¤Ï¡¢¥É¥á¥¤¥ó̾¤ò ´Þ¤Þ¤Ê¤¤¥Ë¥Ã¥¯¥Í¡¼¥à¤ä¥É¥á¥¤¥ó¤Î¾Êά·Á¤Ç¤Ï¤Ê¤¯¡¢´°Á´½¤¾þ¤µ¤ì¤¿ ¥×¥ê¥ó¥·¥Ñ¥ë̾¤Þ¤¿¤Ï¥É¥á¥¤¥ó¥ê¥Æ¥é¥ë¤Ç¤Ê¤±¤ì¤Ð¤Ê¤é¤Ê¤¤¡£Àµµ¬²½ ¤µ¤ì¤¿Ì¾Á°¤Ï¡¢¥Û¥¹¥È¤òľÀܼ±Ê̤¹¤ë¤«MX̾¤«¤Î¤É¤Á¤é¤«¤Ç¤¢¤ë¡£ CNAME¤Ë¤¹¤ë¤³¤È¤Ï¤Ç¤­¤Ê¤¤¡£ Internet Engineering Task Force [Page 49] RFC1123 MAIL -- SMTP & RFC-822 October 1989 5.2.3 VRFY¡¢EXPN¥³¥Þ¥ó¥É: RFC 821 ¥»¥¯¥·¥ç¥ó3.3 Receiver-SMTP¤ÏVRFY¤ò¼ÂÁõ¤·¤Ê¤±¤ì¤Ð¤Ê¤é¤º(MUST)¡¢EXPN¤ò¼ÂÁõ ¤¹¤Ù¤­¤Ç¤¢¤ë(SHOULD)(ËÜÍ×·ï¤ÏRFC 821¤ò¾å½ñ¤­¤¹¤ë)¡£¤·¤«¤·¡¢ ÆÃÄê¤ÎƳÆþ¾õ¶·¤Ë¤ª¤¤¤Æ¤ÏVRFY¤ÈEXPN¤ò̵¸ú¤Ë¤¹¤ëÀßÄê¾ðÊó¤¬ ¤¢¤Ã¤Æ¤â¤è¤¤(MAY)¡£¤³¤ì¤Ë¤è¤ê¡¢ÀßÄê¾ðÊó¤ÇÁªÂò¤µ¤ì¤¿¥ê¥¹¥È¤Ë ÂФ·¤Æ¤À¤±EXPN¤ò̵¸ú¤Ë¤¹¤ë¤È¤¤¤Ã¤¿¤³¤È¤µ¤¨²Äǽ¤«¤â¤·¤ì¤Ê¤¤¡£ VRFY¥³¥Þ¥ó¥ÉÍѤ˿·¤·¤¤±þÅú¥³¡¼¥É¤òÄêµÁ¤¹¤ë¡£ 252 Cannot VRFY user (e.g., info is not local), but will take message for this user and attempt delivery. (¾ðÊó¤¬¥í¡¼¥«¥ë¤Ç¤Ê¤¤Åù¤ÎÍýͳ¤Ç)¥æ¡¼¥¶¡¼¤òVRFY¤Ç¤­¤Ê¤¤ ¤¬¡¢¤³¤Î¥æ¡¼¥¶¡¼°¸¤Î¥á¥Ã¥»¡¼¥¸¤Ï¼õ¤±ÉÕ¤±ÇÛÁ÷¤ò»î¤ß¤ë¡£ ¡Ú µÄÏÀ ¡Û SMTP¥æ¡¼¥¶¡¼¤È´ÉÍý¼Ô¤Ï¡¢¥á¡¼¥ëÇÛÁ÷¤ÎÌäÂê¤ò¿ÇÃǤ¹¤ë¤¿¤á¤Ë ¤³¤ì¤é¤Î¥³¥Þ¥ó¥É¤òÆü¾ïŪ¤Ë»ÈÍѤ¹¤ë¡£¥á¡¼¥ê¥ó¥°¥ê¥¹¥È¤ò Ê£¿ôÃʳ¬(2Ãʳ¬¤ò±Û¤¨¤ë¾ì¹ç¤â¤¢¤ë)¤ÇŸ³«¤¹¤ë»öÎã¤ÎÁý²Ã¤Ë ȼ¤¤¡¢ÉÔÃí°Õ¤Ë¤è¤ë¥á¡¼¥ë¥ë¡¼¥×¤ò¿ÇÃǤ¹¤ë¤¿¤á¤ËEXPN¤Ï ¤Þ¤¹¤Þ¤¹½ÅÍפˤʤäƤ­¤Æ¤¤¤ë¡£°ìÊý¤Ç¡¢EXPN¤Ï½ÅÂç¤Ê ¥×¥é¥¤¥Ð¥·¡¼¤ÎϪ½Ð(exposure)¤Ëα¤Þ¤é¤º¡¢¥»¥­¥å¥ê¥Æ¥£¤Î Ϫ½Ð¤Ë¤¹¤éÁêÅö¤¹¤ë¤È´¶¤¸¤ë¿Í¡¹¤â¤¤¤ë¡£ 5.2.4 SEND¡¢SOML¡¢SAML¥³¥Þ¥ó¥É: RFC 821 ¥»¥¯¥·¥ç¥ó3.4 SMTP¤Ï¡¢¥æ¡¼¥¶¡¼¤ÎüËö¤Ë¥á¥Ã¥»¡¼¥¸¤òÁ÷¿®¤¹¤ë¤¿¤á¤Î¥³¥Þ¥ó¥É SEND¡¢SOML¡¢SAML¤ò¼ÂÁõ¤·¤Æ¤â¤è¤¤(MAY)¡£ ¡Ú µÄÏÀ ¡Û MX¥ì¥³¡¼¥É¤ò²ð¤·¤¿¥á¡¼¥ëÃæ·Ñ¤Î»ÈÍѤϡ¢¥á¥Ã¥»¡¼¥¸¤òľ¤Á¤Ë ¥æ¡¼¥¶¡¼¤ÎüËö¤ËľÀÜÇÛÁ÷¤¹¤ëSEND¤Î°Õ¿Þ¤ÈÌ·½â¤¹¤ë¤³¤È¤¬ »ØÅ¦¤µ¤ì¤Æ¤¤¤ë¡£¤·¤«¤·¡¢¥æ¡¼¥¶¡¼¤ÎüËö¤ËľÀܽñ¤­¹þ¤á¤Ê¤¤ Receiver-SMTP¤Ï¡¢SEND¤Ë³¤¯RCPT¤Ë"251 User Not Local (¥æ¡¼¥¶¡¼¤Ï¥í¡¼¥«¥ë¤Ç¤Ï¤Ê¤¤)"¤È±þÅú¤¹¤ë¤³¤È¤Ç¡¢¥á¥Ã¥»¡¼¥¸ À¸À®¼Ô¤ËÇÛÁ÷ÃÙ±ä¤Î²ÄǽÀ­¤òÄÌÃΤ¹¤ë¤³¤È¤¬¤Ç¤­¤ë¡£ 5.2.5 HELO¥³¥Þ¥ó¥É: RFC 821 ¥»¥¯¥·¥ç¥ó3.5 Sender-SMTP¤Ï¡¢HELO¥³¥Þ¥ó¥É¤Î¥Ñ¥é¥á¡¼¥¿¡¼¤¬¥¯¥é¥¤¥¢¥ó¥È ¥Û¥¹¥È¤ÎÍ­¸ú¤Ê¥×¥ê¥ó¥·¥Ñ¥ë¥Û¥¹¥È¥É¥á¥¤¥ó̾¤Ç¤¢¤ë¤³¤È¤òÊÝ¾Ú ¤·¤Ê¤±¤ì¤Ð¤Ê¤é¤Ê¤¤(MUST)¡£¤³¤ì¤Ë¤è¤ê¡¢Receiver-SMTP¤ÏHELO ¥Ñ¥é¥á¡¼¥¿¡¼¤ÎÂÅÅöÀ­¸¡¾Ú¤Î¤¿¤á¡¢¤½¤Î̾Á°¤ÎMX²ò·è¤ò¼Â¹Ô¤¹¤ë ɬÍפ¬¤Ê¤¯¤Ê¤ë¡£ HELO¼õ¿®¼Ô¤Ï¡¢HELO¥Ñ¥é¥á¡¼¥¿¡¼¤¬ËÜÅö¤ËÁ÷¿®¼Ô¤ÎIP¥¢¥É¥ì¥¹¤ËÂбþ ¤·¤Æ¤¤¤ë¤«¤ò¸¡¾Ú¤·¤Æ¤â¤è¤¤(MAY)¡£ Internet Engineering Task Force [Page 50] RFC1123 MAIL -- SMTP & RFC-822 October 1989 ¤¿¤À¤·¼õ¿®¼Ô¤Ï¡¢Á÷¿®¼Ô¤ÎHELO¥³¥Þ¥ó¥É¤Î¸¡¾Ú¤Ë¼ºÇÔ¤·¤¿¤È¤·¤Æ¤â¡¢ ¥á¥Ã¥»¡¼¥¸¼õÍý¤òµñÈݤ·¤Æ¤Ï¤Ê¤é¤Ê¤¤(MUST NOT)¡£ ¡Ú µÄÏÀ ¡Û HELO¥Ñ¥é¥á¡¼¥¿¡¼¤Î¸¡¾Ú¤Ï¥É¥á¥¤¥ó̾¤Î¸¡º÷¤òɬÍפȤ¹¤ë¤¿¤á¡¢ ̵»ë¤Ç¤­¤Ê¤¤»þ´Ö¤ò¼è¤é¤ì¤ë²ÄǽÀ­¤¬¤¢¤ë¡£µ¶Â¤¥á¡¼¥ë¤Î Á÷¿®¸»¤òÄÉÀפ¹¤ë¤¿¤á¤ÎÂåÂØ¥Ä¡¼¥ë¤ò¸å¤Û¤ÉÄ󰯤¹¤ë("DATA ¥³¥Þ¥ó¥É"¤ò»²¾È¤»¤è)¡£ ¤Þ¤¿¡¢HELO¤Î°ú¿ô¤ÏReceived:¹Ô¤Ë¸½¤ì¤ë¤³¤È¤«¤é¡¢Í­¸ú¤Ê ¹½Ê¸¤ò»ý¤ÄɬÍפ¬¤¢¤ë¤³¤È¤Ë¤âÃí°Õ¤»¤è¡£¤½¤¦¤Ç¤Ê¤¤ ¾ì¹ç¡¢501¥¨¥é¡¼¤¬Á÷¿®¤µ¤ì¤ë¡£ ¡Ú ¼ÂÁõ ¡Û HELO¥Ñ¥é¥á¡¼¥¿¡¼¤ÎÂÅÅöÀ­¸¡¾Ú¤Ë¼ºÇÔ¤·¤¿¾ì¹ç¡¢¿ä¾©¤µ¤ì¤ë ¼ê½ç¤Ï¡¢¥á¥Ã¥»¡¼¥¸¥Ø¥Ã¥À¡¼¤ÎÃæ(Î㤨¤Ð"Received:¹Ô"¤ÎÃæ) 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¤ò¹Ô¤¦ºÝ¤Ë¤âƱÍͤÎÍ׷郎¸ºß¤¹¤ë¡£¥»¥¯¥·¥ç¥ó5.3.7¤ò»²¾È¤»¤è¡£ ¡Ú µÄÏÀ ¡Û DATA¥³¥Þ¥ó¥É¤Ø¤ÎºÇ¸å¤Î±þÅú¤Ï¡¢¥á¥Ã¥»¡¼¥¸¤ÎÇÛÁ÷¤ÈÊݸ¤ÎÀ®¸ù ¤Ë¤Î¤ß°Í¸¤¹¤ë¤³¤È¤ËÃí°Õ¤»¤è¡£°¸À襢¥É¥ì¥¹¤Ë´Ø¤¹¤ë¤¢¤é¤æ¤ë ÌäÂê¤Ï¡¢(1)RCPT¥³¥Þ¥ó¥É¤Ø¤ÎSMTP¥¨¥é¡¼±þÅú¤ÇÊó¹ð¤µ¤ì¤ë¤«¡¢ (2)¥á¥Ã¥»¡¼¥¸À¸À®¼Ô¤Ë¸å¤Ç¥á¡¼¥ë¤µ¤ì¤ë¥¨¥é¡¼¥á¥Ã¥»¡¼¥¸¤ÎÃæ ¤ÇÊó¹ð¤µ¤ì¤ë¤«¤Î¤É¤Á¤é¤«¤Ç¤Ê¤±¤ì¤Ð¤Ê¤é¤Ê¤¤¡£ ¡Ú ¼ÂÁõ ¡Û MAIL FROM:¾ðÊó¤Ï¡¢¥Ñ¥é¥á¡¼¥¿¡¼¤È¤·¤ÆÅϤµ¤ì¤Æ¤â¤è¤¤¤·¡¢ ¥á¥Ã¥»¡¼¥¸ÀèÆ¬¤ËÁÞÆþ¤µ¤ì¤ëReturn-Path:¹Ô¤ÎÃæ¤ÇÅϤµ¤ì¤Æ¤â ¤è¤¤¡£ 5.2.9 ¥³¥Þ¥ó¥É¹½Ê¸: RFC 821 ¥»¥¯¥·¥ç¥ó4.1.2 RFC 821¤ÇÄ󼨤µ¤ì¤Æ¤¤¤ëMAIL FROM:¥³¥Þ¥ó¥É¤Î¹½Ê¸¤Ï¡¢¥Ñ¥¹¤¬¶õ¤Î »öÎã"MAIL FROM: <>"(RFC 821¤Î15¥Ú¡¼¥¸»²¾È)¤ò¾Êά¤·¤Æ¤¤¤ë¡£ ¶õ¤Îreverse-path¤Ï¥µ¥Ý¡¼¥È¤µ¤ì¤Ê¤±¤ì¤Ð¤Ê¤é¤Ê¤¤(MUST)¡£ 5.2.10 SMTP±þÅú: RFC 821 ¥»¥¯¥·¥ç¥ó4.2 Receiver-SMTP¤Ï¡¢RFC 821¤Î¥»¥¯¥·¥ç¥ó4.2.2¤Þ¤¿¤ÏËÜʸ½ñ¤ËÎóµó ¤µ¤ì¤Æ¤¤¤ë±þÅú¥³¡¼¥É¤À¤±¤òÁ÷¿®¤¹¤Ù¤­¤Ç¤¢¤ë(SHOULD)¡£ Receiver-SMTP¤Ï¡¢RFC 821¤ÎÎã¤Ç¼¨¤µ¤ì¤Æ¤¤¤ë¥Æ¥­¥¹¥È¤Î»ÈÍѤ¬ ŬÀڤǤ¢¤ë¾ì¹ç¤Ï¡¢¾ï¤Ë¤½¤ì¤ò»ÈÍѤ¹¤Ù¤­¤Ç¤¢¤ë(SHOULD)¡£ Sender-SMTP¤Ï¡¢(251±þÅú¤È551±þÅú¤ò½ü¤­)¥Æ¥­¥¹¥È¤Ç¤Ï¤Ê¤¯¡¢ ±þÅú¥³¡¼¥É¤Î¤ß¤Ë¤è¤Ã¤ÆÆ°ºî¤ò·èÄꤷ¤Ê¤±¤ì¤Ð¤Ê¤é¤Ê¤¤(MUST)¡£ ¥Æ¥­¥¹¥È¤¬Â¸ºß¤·¤Ê¤¤¾ì¹ç¤â´Þ¤á¤Æ¡¢¤¢¤é¤æ¤ë¥Æ¥­¥¹¥È¤ò¼õÍý²Äǽ ¤Ç¤Ê¤±¤ì¤Ð¤Ê¤é¤Ê¤¤¡£±þÅú¥³¡¼¥É¤Ë³¤¯¶õÇò(¥Û¥ï¥¤¥È¥¹¥Ú¡¼¥¹ µÚ¤Ó¥¿¥Ö)¤Ï¡¢¥Æ¥­¥¹¥È¤Î°ìÉô¤È¸«¤Ê¤µ¤ì¤ë¡£ Internet Engineering Task Force [Page 54] RFC1123 MAIL -- SMTP & RFC-822 October 1989 Sender-SMTP¤Ï¡¢RFC 821¤ÎÉÕÏ¿E¤Çµ¬Äꤵ¤ì¤Æ¤¤¤ë¤è¤¦¤Ë¡¢±þÅú¥³¡¼¥É ¤Î1·åÌÜ(ºÇ¾å°Ì·å)¤À¤±¤Î¸¡ºº¤Ç½½Ê¬¤Ê¾ì¹ç¤Ï¡¢¤Ç¤­¤ë¸Â¤ê¤½¤³¤Þ¤Ç ¤Ëα¤á¤ë¤Ù¤­¤Ç¤¢¤ë(SHOULD)¡£ ¡Ú µÄÏÀ ¡Û RFC 821¤Î¥»¥¯¥·¥ç¥ó4.3¤Ë¤ÏÌÀ¼¨Åª¤ËÎóµó¤µ¤ì¤Æ¤¤¤Ê¤¤¤¬¡¢ ÉÕÏ¿E¤ÇÀâÌÀ¤µ¤ì¤Æ¤¤¤ë±þÅú¥³¡¼¥É¤ÎÍýÏÀ¤Ë¾È¤é¤·¤ÆÀµÅö¤Ê ±þÅú¥³¡¼¥É¤ò»ÈÍѤ¹¤ëSMTP¥·¥¹¥Æ¥à´Ö¤ÇÁê¸ß±¿ÍÑÀ­¤ÎÌäÂ꤬ ȯÀ¸¤·¤Æ¤¤¤ë¡£ 5.2.11 Æ©²áÀ­: RFC 821 ¥»¥¯¥·¥ç¥ó4.5.2 ¼ÂÁõ¼Ô¤Ï¡¢¥á¥Ã¥»¡¼¥¸¤ÎÆ©²áÀ­¤òÊݾڤ¹¤ë¤¿¤á¡¢Èà¤é¤Î¼ÂÁõ¤·¤¿ ¥á¡¼¥ë¥·¥¹¥Æ¥à¤¬¾ï¤Ë¥Ô¥ê¥ª¥É¤òÄɲᢺï½ü¤¹¤ë¤³¤È¤òÊÝ¾Ú ¤·¤Ê¤±¤ì¤Ð¤Ê¤é¤Ê¤¤(MUST)¡£ 5.2.12 MX½èÍý¤Ë¤ª¤±¤ëWKS¤Î»ÈÍÑ: RFC 974¤Î5¥Ú¡¼¥¸ RFC 974[SMTP:3]¤Ç¤Ï¡¢Ä󼨤µ¤ì¤¿¥á¡¼¥ëÁ÷¿®À褬ËÜÅö¤ËSMTP¤ò ¥µ¥Ý¡¼¥È¤·¤Æ¤¤¤ë¤«¤ò¸¡¾Ú¤¹¤ë¤¿¤á¡¢¥É¥á¥¤¥ó¥·¥¹¥Æ¥à¤ËWKS("Well- Known Service")¥ì¥³¡¼¥É¤òÌ䤤¹ç¤ï¤»¤ë¤³¤È¤ò¿ä¾©¤·¤Æ¤¤¤¿¡£¤½¤Î¸å ¤Î·Ð¸³¤Ë¤è¤ê¡¢WKS¤Ï¹­¤¯¥µ¥Ý¡¼¥È¤µ¤ì¤Æ¤¤¤Ê¤¤¤³¤È¤¬Ê¬¤«¤Ã¤¿¤¿¤á¡¢ MX½èÍý¤ÇWKS¤Ï»ÈÍѤµ¤ì¤ë¤Ù¤­¤Ç¤Ï¤Ê¤¤(SHOULD NOT)¡£ °Ê²¼¤ÏRFC 822¤ÎÃí¼á¤Ç¡¢RFC 822¤Î¥»¥¯¥·¥ç¥óÈÖ¹æ¤Ë½¾¤Ã¤¿¹½À®¤È ¤Ê¤Ã¤Æ¤¤¤ë¡£ 5.2.13 RFC 822¤Î¥á¥Ã¥»¡¼¥¸»ÅÍÍ: RFC 822 ¥»¥¯¥·¥ç¥ó4 Return-Path¹Ô¤Î¹½Ê¸¤Ï¡¢¥¨¥é¡¼ÄÌÃΤΥ롼¥×¤òËɻߤ¹¤ë¤¿¤á¤Ë ¥Ì¥ë(null)¤¬»ØÄꤵ¤ì¤ë²ÄǽÀ­¤ò½ü³°¤·¤Æ¤¤¤ë(¥»¥¯¥·¥ç¥ó5.3.3 »²¾È)¡£´°Á´¤Ê¹½Ê¸¤Ï°Ê²¼¤ÎÄ̤ê¤Ç¤¢¤ë¡£ return = "Return-path" ":" route-addr / "Return-path" ":" "<" ">" Ǥ°Õ¤Î¥Ø¥Ã¥À¡¼¥Õ¥£¡¼¥ë¥É¤Î½¸¹ç¤ò¤³¤³¤Ç³ÈÄ¥¤·¡¢RFC 1049[SMTP:7] ¤ÇÄêµÁ¤µ¤ì¤ëContent-Type¥Õ¥£¡¼¥ë¥É¤ò´Þ¤á¤ë¤â¤Î¤È¤¹¤ë¡£¤³¤Î ¥Õ¥£¡¼¥ë¥É¤Ï¡¢"¥á¡¼¥ëÆÉ¤ß½Ð¤·¥·¥¹¥Æ¥à¤¬¹½Â¤²½¤µ¤ì¤¿¥á¥Ã¥»¡¼¥¸ ¥Ü¥Ç¥£¤Î¥¿¥¤¥×¤ò¼«Æ°Åª¤ËÆÃÄꤷ¡¢Å¬ÀÚ¤Êɽ¼¨¤Î¤¿¤á¤Î½èÍý¤ò²Äǽ ¤È¤¹¤ë"¤â¤Î¤Ç¤¢¤ë[SMTP:7]¡£¥æ¡¼¥¶¡¼¥¨¡¼¥¸¥§¥ó¥È¤Ï¡¢¤³¤Î ¥Õ¥£¡¼¥ë¥É¤ò¥µ¥Ý¡¼¥È¤·¤Æ¤â¤è¤¤(MAY)¡£ 5.2.14 RFC 822¤ÎÆüÉդȻþ¹ï¤Î»ÅÍÍ: RFC 822 ¥»¥¯¥·¥ç¥ó5 ¤³¤³¤Ç¡¢ÆüÉդι½Ê¸¤ò°Ê²¼¤Î¤è¤¦¤ËÊѹ¹¤¹¤ë¡£ date = 1*2DIGIT month 2*4DIGIT Internet Engineering Task Force [Page 55] RFC1123 MAIL -- SMTP & RFC-822 October 1989 ¤¹¤Ù¤Æ¤Î¥á¡¼¥ë¥½¥Õ¥È¥¦¥§¥¢¤Ï¡¢¼¡¤ÎÀ¤µª¤Ø¤Î°Ü¹Ô¤òÍÆ°×¤Ë¤¹¤ë¤¿¤á¡¢ ÆüÉÕ¤Ç4·å¤Îǯ¤ò»ÈÍѤ¹¤Ù¤­¤Ç¤¢¤ë(SHOULD)¡£ ¿ô»ú¤Î¥¿¥¤¥à¥¾¡¼¥ó¥¤¥ó¥¸¥±¡¼¥¿¡¼¤ò»ÈÍѤ¹¤ë·¹¸þ¤¬¶¯¤¯¤Ê¤Ã¤Æ¤¤¤ë ¤¿¤á¡¢¼ÂÁõ¤Ï¥¿¥¤¥à¥¾¡¼¥ó̾¤ÎÂå¤ï¤ê¤Ë¿ô»ú¤Î¥¿¥¤¥à¥¾¡¼¥ó¤ò»ÈÍÑ ¤¹¤Ù¤­¤Ç¤¢¤ë(SHOULD)¡£¤¿¤À¤·¡¢¤¹¤Ù¤Æ¤Î¼ÂÁõ¤Ï¤É¤Á¤é¤Îɽµ­¤â¼õÍý ¤·¤Ê¤±¤ì¤Ð¤Ê¤é¤Ê¤¤(MUST)¡£¥¿¥¤¥à¥¾¡¼¥ó̾¤¬»ÈÍѤµ¤ì¤ë¾ì¹ç¡¢¸·Ì© ¤ËRFC 822¤ÇÄêµÁ¤µ¤ì¤¿Ä̤ê¤Ç¤Ê¤±¤ì¤Ð¤Ê¤é¤Ê¤¤(MUST)¡£ ·³ÍÑ¥¿¥¤¥à¥¾¡¼¥ó¤ÏRFC 822¤Ç¸í¤Ã¤Æµ¬Äꤵ¤ì¤Æ¤¤¤ë¡£¶ñÂÎŪ¤Ë¡¢UT ¤«¤é¤Î·×»»ÊýË¡¤¬¸í¤Ã¤Æ¤¤¤ë(ÀµÉé¤ÎÉ乿¤¬µÕ¤Ë¤Ê¤Ã¤Æ¤¤¤ë)¡£·ë²Ì ¤È¤·¤Æ¡¢RFC 822¥Ø¥Ã¥À¡¼¤Ë¤ª¤±¤ë·³ÍÑ¥¿¥¤¥à¥¾¡¼¥ó¤Ï²¿¤â¾ðÊó¤ò ÇÛÁ÷¤·¤Ê¤¯¤Ê¤Ã¤Æ¤¤¤ë¡£ ºÇ¸å¤Ë¡¢ÉÕÏ¿D¤Î¹½Ê¸³µÍפÎÃæ¤Ç¡¢"¥¾¡¼¥ó"¤ÎÄêµÁ¤Ë¥¿¥¤¥×¸í¤ê¤¬ ¤¢¤ë¤³¤È¤ËÃí°Õ¤»¤è¡£Àµ¤·¤¤ÄêµÁ¤ÏRFC 822¤Î¥»¥¯¥·¥ç¥ó3¤Ë¤¢¤ë¡£ 5.2.15 RFC 822¤Î¹½Ê¸¤ÎÊѹ¹: RFC 822 ¥»¥¯¥·¥ç¥ó6.1 ¤³¤³¤Ç¡¢RFC 822¤Î"mailbox"¤Î¹½Ê¸ÄêµÁ¤ò°Ê²¼¤Î¤è¤¦¤ËÊѹ¹¤¹¤ë¡£ mailbox = addr-spec ; simple address / [phrase] route-addr ; name & addr-spec ¤Ä¤Þ¤ê¡¢route-addr¤ÎÁ°¤Ë¤¢¤ëphrase¤Ïº£¸åǤ°Õ(OPTIONAL)¤È¤Ê¤ë¡£ ¤³¤ÎÊѹ¹¤Ë¤è¤ê¡¢Î㤨¤Ð°Ê²¼¤Î¤è¤¦¤Ê¥Ø¥Ã¥À¡¼¥Õ¥£¡¼¥ë¥É¤ÏÍ­¸ú¤Ê ¤â¤Î¤È¤Ê¤ë¡£ From: 5.2.16 RFC 822¤ÎLocal-part: RFC 822 ¥»¥¯¥·¥ç¥ó6.2 ´ðËÜŪ¤Ê¥á¡¼¥ë¥¢¥É¥ì¥¹»ÅÍͤϡ¢"local-part@domain"·Á¼°¤Ç¤¢¤ë¡£ ¤³¤³¤Ç¡¢"local-part"¤Ï¥¢¥É¥ì¥¹¤Î"º¸Â¦"¤È¸Æ¤Ð¤ì¤ë¤³¤È¤â¤¢¤ê¡¢ ¥É¥á¥¤¥ó¤Ë°¤¹¤ë¤â¤Î¤Ç¤¢¤ë¡£ ±¦Â¦¤Î"domain"¤Ç°Å¼¨¤µ¤ì¤ë¥á¥Ã¥»¡¼¥¸¤Î°¸Àè¤Ç¤Ï¤Ê¤¤¥Û¥¹¥È¤¬¤½¤Î ¥á¥Ã¥»¡¼¥¸¤òžÁ÷¤¹¤ë¾ì¹ç¡¢¥¢¥É¥ì¥¹¤Î"local-part"¤ò²ò¼á¤Þ¤¿¤Ï Êѹ¹¤·¤Æ¤Ï¤Ê¤é¤Ê¤¤(MUST NOT)¡£ ¥á¡¼¥ë¤¬¥¤¥ó¥¿¡¼¥Í¥Ã¥È¥á¡¼¥ë´Ä¶­¤«¤é³°Éô¤Î¥á¡¼¥ë´Ä¶­¤Ë¥²¡¼¥È ¥¦¥§¥¤Ãæ·Ñ¤µ¤ì¤ë¾ì¹ç(¥»¥¯¥·¥ç¥ó5.3.7»²¾È)¡¢³°Éô¤Î¥á¡¼¥ë´Ä¶­¤Ç »ÈÍѤµ¤ì¤ë¥ë¡¼¥Æ¥£¥ó¥°¾ðÊó¤ò¥¢¥É¥ì¥¹¤Î"local-part"¤ËËä¤á¹þ¤ó¤Ç¤â ¤è¤¤(MAY)¡£¤½¤Î¾ì¹ç¡¢¥²¡¼¥È¥¦¥§¥¤¤Ï¡¢¤½¤Îlocal-part¤ò³°Éô¤Î ¥á¡¼¥ë´Ä¶­¤Ë¤¢¤ï¤»¤ÆÅ¬Àڤ˲ò¼á¤¹¤ë¤À¤í¤¦¡£ Internet Engineering Task Force [Page 56] RFC1123 MAIL -- SMTP & RFC-822 October 1989 ¡Ú µÄÏÀ ¡Û ¥½¡¼¥¹¥ë¡¼¥È¤Ï¥¤¥ó¥¿¡¼¥Í¥Ã¥ÈÆâ¤Ç¤Ï¿ä¾©¤µ¤ì¤Ê¤¤¤¬ 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¤ò¤¢¤ï¤»¤ë¤È¡¢0.5¥á¥¬¥Ð¥¤¥È¤Ë¤Ê¤ë¤³¤È¤òÃíµ­¤·¤Æ¤ª¤¯¡£ Internet Engineering Task Force [Page 68] RFC1123 MAIL -- SMTP & RFC-822 October 1989 5.4 SMTP¤ÎÍ×·ï¤Î³µÍ× | | | | |S| | | | | | |H| | | | | | |O|M| | | |S| |U|U| | | |H| |L|S| | |M|O| |D|T|µÓ | |U|U|M| | | | |S|L|A|N|N| | |T|D|Y|O|O|Ãí µ¡ ǽ |¥»¥¯¥·¥ç¥ó| | | |T|T| -----------------------------------------------|----------|-|-|-|-|-|-- | | | | | | | Receiver-SMTP: | | | | | | | VRFY¤ò¼ÂÁõ |5.2.3 |x| | | | | EXPN¤ò¼ÂÁõ |5.2.3 | |x| | | | EXPN¡¢VRFY¤ò̵¸ú¤Ë¤¹¤ëÀßÄ꤬²Äǽ |5.2.3 | | |x| | | SEND¡¢SOML¡¢SAML¤ò¼ÂÁõ |5.2.4 | | |x| | | HELO¥Ñ¥é¥á¡¼¥¿¡¼¤ÎÂÅÅöÀ­¤ò¸¡¾Ú |5.2.5 | | |x| | | ÉÔÀµ¤ÊHELO¤ò²ð¤·¤¿¥á¥Ã¥»¡¼¥¸¤òµñÈÝ |5.2.5 | | | | |x| Ž´ŽÝŽÍŽÞŽÛްŽÌŽß¤Ë¤ª¤±¤ëÌÀ¼¨Åª¤ÊŽ¿Ž°Ž½ŽÙްŽÄ¹½Ê¸¤ò¼õÍý |5.2.6 |x| | | | | "postmaster"¤ò¥µ¥Ý¡¼¥È |5.2.7 |x| | | | | (¥ê¥¹¥È¤Î¾ì¹ç¤ò½ü¤­)RCPT¤ò¼õ¿®»þ¤Ë½èÍý |5.2.7 | | |x| | | RCPT±þÅú¤òÂçÉý¤ËÃÙ±ä |5.2.7 | | | | |x| | | | | | | | Received:¹Ô¤òÄɲà |5.2.8 |x| | | | | Received:¹Ô¤Ï¥É¥á¥¤¥ó¥ê¥Æ¥é¥ë¤ò´Þ¤à |5.2.8 | |x| | | | °ÊÁ°¤ËÄɲ䵤줿Received:¹Ô¤òÊѹ¹ |5.2.8 | | | | |x| ÊÖ¿®Àè¾ðÊó¤òÅϤ¹(ºÇ½ªÅª¤ÊÇÛÁ÷/޹ŽÞްŽÄŽ³ŽªŽ²Ãæ·Ñ»þ) |5.2.8 |x| | | | | ¶õ¤Îreverse-path¤ò¥µ¥Ý¡¼¥È |5.2.9 |x| | | | | ¸ø¼°¤Ê±þÅú¥³¡¼¥É¤À¤±¤òÁ÷¿® |5.2.10 | |x| | | | ŬÀڤʾì¹çRFC 821¤Ç¼¨¤µ¤ì¤Æ¤¤¤ë¥Æ¥­¥¹¥È¤òÁ÷¿®|5.2.10 | |x| | | | Æ©²áÀ­¤òÊݾڤ¹¤ë¤¿¤á"."¤òºï½ü |5.2.11 |x| | | | | ¼«¿È¤ÎޱŽÄŽÞŽÚ޽¤ËÀßÄꤵ¤ì¤¿ŽÄŽÞŽÒ޲ŽÝŽØŽÃŽ×ŽÙ¤òÍý²ò¤·¼õÍý |5.2.17 |x| | | | | | | | | | | | Ž´Ž×ްŽÒޝ޾ް޼ŽÞ¤ËÂФ·¤ÆŽ´Ž×ްŽÒޝ޾ް޼ŽÞ¤òÁ÷¿® |5.3.1 | | | | |x| SMTP¥Ý¡¼¥È¾å¤ÇÂÔµ¡¤¹¤ë¾õÂÖ¤ò°Ý»ý |5.3.1.2 | |x| | | | Ê£¿ô¤ÎƱ»þTCPÀܳ¼õ¿®¿ô¤òÀ©¸Â |5.3.1.2 | | |x| | | Á÷¿®¼Ô¤«¤é¤Î¼¡¤Î¥³¥Þ¥ó¥É¤Þ¤ÇºÇÄã¤Ç¤â5ʬÂÔ¤Ä |5.3.2 | |x| | | | "250 OK"¸å¤Ë²óÈò¤Ç¤­¤¿¾ã³²¤Ç¥á¥Ã¥»¡¼¥¸¾Ã¼º |5.3.3 | | | | |x| ŽÒޝ޾ް޼ŽÞ¼õÍý¸å¤Î¾ã³²È¯À¸»þŽ´Ž×ްÄÌÃÎÁ÷¿® |5.3.3 |x| | | | | ¥Ì¥ë¤Îreverse-path¤ò»ÈÍѤ·¤ÆÁ÷¿® |5.3.3 |x| | | | | ¥¨¥ó¥Ù¥í¡¼¥×¤ÎÊÖ¿®Àè¤ËÁ÷¿® |5.3.3 | |x| | | | ÊÖ¿®À褬¥Ì¥ë¤Î¾ì¹ç¤ËÁ÷¿® |5.3.3 | | | | |x| ÌÀ¼¨Åª¥½¡¼¥¹¥ë¡¼¥È¤ò¼è¤ê½ü¤¯ |5.3.3 | |x| | | | ŽÒޝ޾ް޼ŽÞ¼õÍý¤ò¼¨¤¹±þÅú¤ÎÃÙ±ä¤òºÇ¾®²½(RFC 1047) |5.3.3 |x| | | | | -----------------------------------------------|----------|-|-|-|-|-|-- Internet Engineering Task Force [Page 69] RFC1123 MAIL -- SMTP & RFC-822 October 1989 | | | | | | | Sender-SMTP: | | | | | | | MAIL¡¢RCPT¤ÇÀµµ¬²½¤µ¤ì¤¿¥É¥á¥¤¥ó̾¤òÁ÷¿® |5.2.2 |x| | | | | SEND¡¢SOML¡¢SAML¤ò¼ÂÁõ |5.2.4 | | |x| | | HELO¤ÇÍ­¸ú¤Ê¥×¥ê¥ó¥·¥Ñ¥ë¥Û¥¹¥È̾¤òÁ÷¿® |5.2.5 |x| | | | | RCPT TO:¤ÇÌÀ¼¨Åª¥½¡¼¥¹¥ë¡¼¥È¤òÁ÷¿® |5.2.6 | | | |x| | ±þÅú¥³¡¼¥É¤À¤±¤ò»ÈÍѤ·¤ÆÆ°ºî¤ò·èÄê |5.2.10 |x| | | | | ²Äǽ¤Ê¤é±þÅú¥³¡¼¥É¤ÎºÇ¾å°Ì·å¤À¤±¤ò»ÈÍÑ |5.2.10 | |x| | | | Æ©²áÀ­¤Î¤¿¤á"."¤òÄɲà |5.2.11 |x| | | | | | | | | | | | ¥½¥Õ¥È¾ã³²È¯À¸¸å¥á¥Ã¥»¡¼¥¸¤ò¥ê¥È¥é¥¤ |5.3.1.1 |x| | | | | ¼¡¤Î¥ê¥È¥é¥¤¤òÃ٤餻¤ë |5.3.1.1 |x| | | | | ¥ê¥È¥é¥¤¤Î¥Ñ¥é¥á¡¼¥¿¡¼¤ÏÀßÄê²Äǽ |5.3.1.1 |x| | | | | ޷ޭް¤ËÆþ¤ì¤é¤ì¤¿°¸ÀèŽÎ޽ŽÄ¤´¤È¤Ë1²ó¤º¤ÄŽØŽÄŽ×޲ |5.3.1.1 | |x| | | | Ʊ¤¸¥Ç¡¼¥¿¤ËÂФ·¤ÆÊ£¿ô¤ÎRCPT¤ò»ÈÍÑ |5.3.1.1 | |x| | | | Á÷¿®¥È¥é¥ó¥¶¥¯¥·¥ç¥ó¤ÎÊ£¿ôÊÂÎó¼Â¹Ô¤ò¥µ¥Ý¡¼¥È |5.3.1.1 | | |x| | | ÊÂÎó¼Â¹Ô¿ô¤òÀ©¸Â |5.3.1.1 | |x| | | | | | | | | | | ¤¹¤Ù¤Æ¤Îưºî¤Ë´Ø¤¹¤ë¥¿¥¤¥à¥¢¥¦¥È |5.3.1 |x| | | | | ¥³¥Þ¥ó¥É¤´¤È¤Ë¥¿¥¤¥à¥¢¥¦¥È¤ò»ÈÍÑ |5.3.2 | |x| | | | ¥¿¥¤¥à¥¢¥¦¥È¤ÏÍÆ°×¤ËºÆÀßÄê²Äǽ |5.3.2 | |x| | | | ¥³¥Þ¥ó¥ÉÊ̤ο侩¥¿¥¤¥à¥¢¥¦¥È¤ò»ÈÍÑ |5.3.2 | |x| | | | ÇÛÁ÷À襢¥É¥ì¥¹¸õÊä¤ò½çÈ֤˻î¹Ô |5.3.4 |x| | | | | »î¹Ô¤¹¤ë¥¢¥É¥ì¥¹¸õÊä¿ô¤Î¾å¸Â¤òÀßÄê²Äǽ |5.3.4 | | |x| | | ¾¯¤Ê¤¯¤È¤âÆó¤Ä¤Î¥¢¥É¥ì¥¹¤ò»î¹Ô |5.3.4 | |x| | | | Åù²Á¤ÊMX¸õÊä´Ö¤ÇÉé²Ù¤òʬ»¶ |5.3.4 | |x| | | | ¥É¥á¥¤¥ó̾¥·¥¹¥Æ¥à¤ò»ÈÍÑ |5.3.5 |x| | | | | MX¥ì¥³¡¼¥É¤ò¥µ¥Ý¡¼¥È |5.3.5 |x| | | | | MX½èÍý¤ÇWKS¥ì¥³¡¼¥É¤ò»ÈÍÑ |5.2.12 | | | |x| | -----------------------------------------------|----------|-|-|-|-|-|-- | | | | | | | ¥á¡¼¥ë¤ÎžÁ÷: | | | | | | | ´û¸¤Î¥Ø¥Ã¥À¡¼¥Õ¥£¡¼¥ë¥É(·²)¤ò½ñ¤­´¹¤¨ |5.2.6 | | | |x| | RFC 821¥»¥¯¥·¥ç¥ó3.6ÄêµÁ¤ÎÃæ·Ñµ¡Ç½¤ò¼ÂÁõ |5.2.6 | | |x| | | ¼ÂÁõ¤·¤Ê¤¤¾ì¹ç¡¢"@"±¦Â¦¤Î¥É¥á¥¤¥ó¤ËÇÛÁ÷ |5.2.6 | |x| | | | ¥¢¥É¥ì¥¹¤Î"local-part"¤ò²ò¼á |5.2.16 | | | | |x| | | | | | | | ¥á¡¼¥ê¥ó¥°¥ê¥¹¥È¤È¥¨¥¤¥ê¥¢¥¹ | | | | | | | ξÊý¤ò¥µ¥Ý¡¼¥È |5.3.6 | |x| | | | ŽÒްިŽÝޏŽÞި޽ŽÄ¤ÎŽ´Ž×ް¤òި޽ŽÄ´ÉÍý¼Ô¤ËÄÌÃÎ |5.3.6 |x| | | | | | | | | | | | ¥á¡¼¥ë¤Î¥²¡¼¥È¥¦¥§¥¤Ãæ·Ñ: | | | | | | | ³°ÉôŽÒްŽÙ´Ä¶­¤ÎŽÙްŽÃލŽÝޏŽÞ¤òlocal-part¤ËËä¤á¹þ¤ß |5.2.16 | | |x| | | ¥Ø¥Ã¥À¡¼¥Õ¥£¡¼¥ë¥É¤òɬÍפ˱þ¤¸¤Æ½ñ¤­´¹¤¨ |5.3.7 | | |x| | | Received:¹Ô¤òÀèÆ¬¤ËÉղà |5.3.7 |x| | | | | ¥Ø¥Ã¥À¡¼Æâ¤Ë´û¤Ë¸ºß¤¹¤ëReceived:¹Ô¤ÎÊѹ¹ |5.3.7 | | | | |x| ޲ŽÝŽÀްŽÈޝŽÄ¦¤Ç¤ÏÍ­¸ú¤ÊÁ´RFC 822ŽÒޝ޾ް޼ŽÞ¤ò¼õÍý |5.3.7 | |x| | | | RFC 822¤ÎÌÀ¼¨Åª¥½¡¼¥¹¥ë¡¼¥È¤Ë½¾¤Ã¤ÆÆ°ºî |5.3.7 | | |x| | | Internet Engineering Task Force [Page 70] RFC1123 MAIL -- SMTP & RFC-822 October 1989 ޲ŽÝŽÀްŽÈޝŽÄ¦¤Ç¤ÏÍ­¸ú¤ÊRFC 822ŽÒޝ޾ް޼ŽÞ¤À¤±¤òÁ÷¿® |5.3.7 |x| | | | | ¥¨¥é¡¼¥á¥Ã¥»¡¼¥¸¤ò¥¨¥ó¥Ù¥í¡¼¥×¤ÎÊÖ¿®Àè¤ËÇÛÁ÷ |5.3.7 | |x| | | | Ž´Ž×ްÊÖ¿®À莱ŽÄŽÞŽÚ޽¤Ë±þ¤¸¤ÆŽ´ŽÝŽÍŽÞŽÛްŽÌŽß¤ÎÊÖ¿®Àè¤òÀßÄê |5.3.7 | |x| | | | | | | | | | | ¥æ¡¼¥¶¡¼¥¨¡¼¥¸¥§¥ó¥È -- RFC 822 | | | | | | | ¥æ¡¼¥¶¡¼¤¬¥½¡¼¥¹¥ë¡¼¥È¤ò´Þ¤à¥¢¥É¥ì¥¹¤òÆþÎÏ |5.2.6 | | | |x| | RFC 1049¤ÎContent-Type¥Õ¥£¡¼¥ë¥É¤ò¥µ¥Ý¡¼¥È |5.2.13 | | |x| | | 4·å¤Îǯ¤ò»ÈÍÑ |5.2.14 | |x| | | | ¿ô»ú¤Î¥¿¥¤¥à¥¾¡¼¥ó¤òÀ¸À® |5.2.14 | |x| | | | ŽÀ޲ŽÑŽ¿ŽÞްŽÝ̾¤â¿ô»ú¤ÎŽÀ޲ŽÑŽ¿ŽÞްŽÝ¤â¤¹¤Ù¤Æ¼õÍý |5.2.14 |x| | | | | ¿ô»ú°Ê³°¤ÎŽÀ޲ŽÑŽ¿ŽÞްŽÝ¤Î¾ì¹ç¤ÏRFC 822¤ÎÄêµÁ¤ò»ÈÍÑ |5.2.14 |x| | | | | route-addr¤ÎÁ°¤Îphrase¤ò¾Êά |5.2.15 | | |x| | | ŽÄŽÞޝŽÄÉÕ¤­10¿Ê¤ÎŽÄŽÞŽÒ޲ŽÝŽØŽÃŽ×ŽÙ¤ò¼õÍý¤·¤Æ¹½Ê¸²òÀÏ |5.2.17 |x| | | | | ¤¹¤Ù¤Æ¤ÎRFC 822¥¢¥É¥ì¥¹¥Õ¥©¡¼¥Þ¥Ã¥È¤ò¼õÍý |5.2.18 |x| | | | | ÉÔÀµ¤ÊRFC 822¥¢¥É¥ì¥¹¥Õ¥©¡¼¥Þ¥Ã¥È¤òÀ¸À® |5.2.18 | | | | |x| ¥Ø¥Ã¥À¡¼¤Ë´Þ¤Þ¤ì¤ë¥É¥á¥¤¥ó̾¤Ï´°Á´½¤¾þ |5.2.18 |x| | | | | ¥Ø¥Ã¥À¡¼¤ÇÌÀ¼¨Åª¤Ê¥½¡¼¥¹¥ë¡¼¥È¤òÀ¸À® |5.2.19 | | | |x| | ÌÀ¼¨Åª¤Ê¥½¡¼¥¹¥ë¡¼¥È¤ò´Þ¤à¥Ø¥Ã¥À¡¼¤ò¼õÍý |5.2.19 |x| | | | | | | | | | | | ¾¯¤Ê¤¯¤È¤â64K¥Ð¥¤¥È¤Î¥á¥Ã¥»¡¼¥¸¤òÁ÷¿®/¼õ¿® |5.3.8 |x| | | | | Internet Engineering Task Force [Page 71] RFC1123 SUPPORT SERVICES -- DOMAINS October 1989 6. ¥µ¥Ý¡¼¥È¥µ¡¼¥Ó¥¹ 6.1 ¥É¥á¥¤¥ó̾¤ÎÊÑ´¹ 6.1.1 ƳÆþ ¤¹¤Ù¤Æ¤Î¥Û¥¹¥È¤Ï¡¢¥É¥á¥¤¥ó̾¥·¥¹¥Æ¥à(DNS)¤Î¥ê¥¾¥ë¥Ð¡¼¤ò¼ÂÁõ ¤·¤Ê¤±¤ì¤Ð¤Ê¤é¤Ê¤¤(MUST)¡£¤Þ¤¿¡¢¤³¤ÎDNS¥ê¥¾¥ë¥Ð¡¼¤ò»ÈÍѤ·¤Æ ¥Û¥¹¥È̾¤«¤éIP¥¢¥É¥ì¥¹¤Ø¤ÎÊÑ´¹¤Þ¤¿¤Ï¤½¤ÎµÕ¤ÎÊÑ´¹¤ò¹Ô¤¦»ÅÁÈ¤ß ¤ò¼ÂÁõ¤·¤Ê¤±¤ì¤Ð¤Ê¤é¤Ê¤¤(MUST)[DNS:1¡¢DNS:2]¡£ 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¥Û¥¹¥È¤Î¾ì¹çÄ̾ï°ÕÌ£¤ò»ý¤¿¤Ê¤¤¤Î¤Ç¾ï¤Ë-1¤È¤¹¤Ù¤­¤Ç¤¢¤ë (SHOULD)¡£¤Þ¤¿ipRouteType¤ÏÄ̾ï¤Î¾ì¹ç¡¢ÃÍ"remote"¤ò»ý¤Ä ¤³¤È¤Ë¤Ê¤ë¡£ Àܳ¥Í¥Ã¥È¥ï¡¼¥¯¾å¤Ë¤¢¤ë°¸À褬¥ë¡¼¥È¥­¥ã¥Ã¥·¥åÆâ¤Ë¤Ê¤¤¾ì¹ç ([INTRO:1]¤Î"Á÷¿®¥Ç¡¼¥¿¥°¥é¥à¤Î¥ë¡¼¥Æ¥£¥ó¥°"¥»¥¯¥·¥ç¥ó¤ò »²¾È¤»¤è)¡¢ÃÍ"direct"¤ò»ý¤ÄipRouteType¥¨¥ó¥È¥ê¡¼¤Ï¸ºß ¤·¤Ê¤¤¡£ Internet Engineering Task Force [Page 91] RFC1123 SUPPORT SERVICES -- MANAGEMENT October 1989 ¡Ú µÄÏÀ ¡Û ¸½ºß¤ÎMIB¤ÏipRouteEntryÇÛ²¼¤Ë¥¿¥¤¥×¥ª¥Ö¥µ¡¼¥Ó¥¹¤ò´Þ¤Þ¤Ê¤¤ ¤¬¡¢¾­Íè¤Î²þÄû¤Ç¤½¤ÎÄɲ䬤ʤµ¤ì¤ë¤³¤È¤¬´üÂÔ¤µ¤ì¤ë¡£ ¤Þ¤¿¡¢¥¢¥×¥ê¥±¡¼¥·¥ç¥ó¤Î¥ê¥â¡¼¥È´ÉÍý(Î㤨¤Ð¡¢¥á¡¼¥ë¥·¥¹¥Æ¥à ¤òÉôʬŪ¤ËºÆÀßÄꤹ¤ëµ¡Ç½)¤ò²Äǽ¤Ë¤¹¤ë¤¿¤á¤ËMIB¤¬³ÈÄ¥¤µ¤ì¤ë ¤³¤È¤â´üÂÔ¤µ¤ì¤ë¡£½¾¤Ã¤Æ¡¢¥á¡¼¥ë¥·¥¹¥Æ¥à¤Î¤è¤¦¤Ê¥Í¥Ã¥È ¥ï¡¼¥¯¥µ¡¼¥Ó¥¹¥¢¥×¥ê¥±¡¼¥·¥ç¥ó¤Ï¡¢¥ê¥â¡¼¥È´ÉÍý¤Ç»ÈÍѤµ¤ì¤ë "¥Õ¥Ã¥¯"¤â´Þ¤á¤Æ½ñ¤«¤ì¤ë¤Ù¤­¤Ç¤¢¤ë¡£ 6.3.3 ¥ê¥â¡¼¥È´ÉÍý¤ÎÍ×·ï¤Î³µÍ× | | | | |S| | | | | | |H| | | | | | |O|M| | | |S| |U|U| | | |H| |L|S| | |M|O| |D|T|µÓ | |U|U|M| | | | |S|L|A|N|N| | |T|D|Y|O|O|Ãí µ¡ ǽ |¥»¥¯¥·¥ç¥ó | | | |T|T| -----------------------------------------------|-----------|-|-|-|-|-|-- SNMP¤«CMOT¤Î¥¨¡¼¥¸¥§¥ó¥È¤ò¥µ¥Ý¡¼¥È |6.3.1 | |x| | | | ɸ½àMIB¤Çµ¬Äꤵ¤ì¤¿¥ª¥Ö¥¸¥§¥¯¥È¤ò¼ÂÁõ |6.3.1 | |x| | | | Internet Engineering Task Force [Page 92] RFC1123 SUPPORT SERVICES -- MANAGEMENT October 1989 7. REFERENCES This section lists the primary references with which every implementer must be thoroughly familiar. It also lists some secondary references that are suggested additional reading. INTRODUCTORY REFERENCES: [INTRO:1] "Requirements for Internet Hosts -- Communication Layers," IETF Host Requirements Working Group, R. Braden, Ed., RFC-1122, October 1989. [INTRO:2] "DDN Protocol Handbook," NIC-50004, NIC-50005, NIC-50006, (three volumes), SRI International, December 1985. [INTRO:3] "Official Internet Protocols," J. Reynolds and J. Postel, RFC-1011, May 1987. This document is republished periodically with new RFC numbers; the latest version must be used. [INTRO:4] "Protocol Document Order Information," O. Jacobsen and J. Postel, RFC-980, March 1986. [INTRO:5] "Assigned Numbers," J. Reynolds and J. Postel, RFC-1010, May 1987. This document is republished periodically with new RFC numbers; the latest version must be used. TELNET REFERENCES: [TELNET:1] "Telnet Protocol Specification," J. Postel and J. Reynolds, RFC-854, May 1983. [TELNET:2] "Telnet Option Specification," J. Postel and J. Reynolds, RFC-855, May 1983. [TELNET:3] "Telnet Binary Transmission," J. Postel and J. Reynolds, RFC-856, May 1983. [TELNET:4] "Telnet Echo Option," J. Postel and J. Reynolds, RFC-857, May 1983. [TELNET:5] "Telnet Suppress Go Ahead Option," J. Postel and J. Internet Engineering Task Force [Page 93] RFC1123 SUPPORT SERVICES -- MANAGEMENT October 1989 Reynolds, RFC-858, May 1983. [TELNET:6] "Telnet Status Option," J. Postel and J. Reynolds, RFC- 859, May 1983. [TELNET:7] "Telnet Timing Mark Option," J. Postel and J. Reynolds, RFC-860, May 1983. [TELNET:8] "Telnet Extended Options List," J. Postel and J. Reynolds, RFC-861, May 1983. [TELNET:9] "Telnet End-Of-Record Option," J. Postel, RFC-885, December 1983. (ÌõÃí: ËÜÃÊÍî¤ÏErrata ID: 584¤òÈ¿±Ç¤·¤Æ¤¤¤ë) [TELNET:10] "Telnet Terminal-Type Option," J. VanBokkelen, RFC-1091, February 1989. This document supercedes RFC-930. [TELNET:11] "Telnet Window Size Option," D. Waitzman, RFC-1073, October 1988. [TELNET:12] "Telnet Linemode Option," D. Borman, RFC-1116, August 1989. [TELNET:13] "Telnet Terminal Speed Option," C. Hedrick, RFC-1079, December 1988. [TELNET:14] "Telnet Remote Flow Control Option," C. Hedrick, RFC- 1080, November 1988. SECONDARY TELNET REFERENCES: [TELNET:15] "Telnet Protocol," MIL-STD-1782, U.S. Department of Defense, May 1984. This document is intended to describe the same protocol as RFC- 854. In case of conflict, RFC-854 takes precedence, and the present document takes precedence over both. [TELNET:16] "SUPDUP Protocol," M. Crispin, RFC-734, October 1977. [TELNET:17] "Telnet SUPDUP Option," M. Crispin, RFC-736, October 1977. [TELNET:18] "Data Entry Terminal Option," J. Day, RFC-732, June 1977. Internet Engineering Task Force [Page 94] RFC1123 SUPPORT SERVICES -- MANAGEMENT October 1989 [TELNET:19] "TELNET Data Entry Terminal option -- DODIIS Implementation," A. Yasuda and T. Thompson, RFC-1043, February 1988. FTP REFERENCES: [FTP:1] "File Transfer Protocol," J. Postel and J. Reynolds, RFC- 959, October 1985. [FTP:2] "Document File Format Standards," J. Postel, RFC-678, December 1974. [FTP:3] "File Transfer Protocol," MIL-STD-1780, U.S. Department of Defense, May 1984. This document is based on an earlier version of the FTP specification (RFC-765) and is obsolete. TFTP REFERENCES: [TFTP:1] "The TFTP Protocol Revision 2," K. Sollins, RFC-783, June 1981. MAIL REFERENCES: [SMTP:1] "Simple Mail Transfer Protocol," J. Postel, RFC-821, August 1982. [SMTP:2] "Standard For The Format of ARPA Internet Text Messages," D. Crocker, RFC-822, August 1982. This document obsoleted an earlier specification, RFC-733. [SMTP:3] "Mail Routing and the Domain System," C. Partridge, RFC- 974, January 1986. This RFC describes the use of MX records, a mandatory extension to the mail delivery process. [SMTP:4] "Duplicate Messages and SMTP," C. Partridge, RFC-1047, February 1988. Internet Engineering Task Force [Page 95] RFC1123 SUPPORT SERVICES -- MANAGEMENT October 1989 [SMTP:5a] "Mapping between X.400 and RFC 822," S. Kille, RFC-987, June 1986. [SMTP:5b] "Addendum to RFC-987," S. Kille, RFC-???, September 1987. The two preceding RFC's define a proposed standard for gatewaying mail between the Internet and the X.400 environments. [SMTP:6] "Simple Mail Transfer Protocol," MIL-STD-1781, U.S. Department of Defense, May 1984. This specification is intended to describe the same protocol as does RFC-821. However, MIL-STD-1781 is incomplete; in particular, it does not include MX records [SMTP:3]. [SMTP:7] "A Content-Type Field for Internet Messages," M. Sirbu, RFC-1049, March 1988. DOMAIN NAME SYSTEM REFERENCES: [DNS:1] "Domain Names - Concepts and Facilities," P. Mockapetris, RFC-1034, November 1987. This document and the following one obsolete RFC-882, RFC-883, and RFC-973. [DNS:2] "Domain Names - Implementation and Specification," RFC-1035, P. Mockapetris, November 1987. [DNS:3] "Mail Routing and the Domain System," C. Partridge, RFC-974, January 1986. [DNS:4] "DoD Internet Host Table Specification," K. Harrenstein, RFC-952, M. Stahl, E. Feinler, October 1985. SECONDARY DNS REFERENCES: [DNS:5] "Hostname Server," K. Harrenstein, M. Stahl, E. Feinler, RFC-953, October 1985. [DNS:6] "Domain Administrators Guide," M. Stahl, RFC-1032, November 1987. Internet Engineering Task Force [Page 96] RFC1123 SUPPORT SERVICES -- MANAGEMENT October 1989 [DNS:7] "Domain Administrators Operations Guide," M. Lottor, RFC- 1033, November 1987. [DNS:8] "The Domain Name System Handbook," Vol. 4 of Internet Protocol Handbook, NIC 50007, SRI Network Information Center, August 1989. SYSTEM INITIALIZATION REFERENCES: [BOOT:1] "Bootstrap Loading Using TFTP," R. Finlayson, RFC-906, June 1984. [BOOT:2] "Bootstrap Protocol (BOOTP)," W. Croft and J. Gilmore, RFC- 951, September 1985. [BOOT:3] "BOOTP Vendor Information Extensions," J. Reynolds, RFC- 1084, December 1988. Note: this RFC revised and obsoleted RFC-1048. [BOOT:4] "A Reverse Address Resolution Protocol," R. Finlayson, T. Mann, J. Mogul, and M. Theimer, RFC-903, June 1984. MANAGEMENT REFERENCES: [MGT:1] "IAB Recommendations for the Development of Internet Network Management Standards," V. Cerf, RFC-1052, April 1988. [MGT:2] "Structure and Identification of Management Information for TCP/IP-based internets," M. Rose and K. McCloghrie, RFC-1065, August 1988. [MGT:3] "Management Information Base for Network Management of TCP/IP-based internets," M. Rose and K. McCloghrie, RFC-1066, August 1988. [MGT:4] "A Simple Network Management Protocol," J. Case, M. Fedor, M. Schoffstall, and C. Davin, RFC-1098, April 1989. [MGT:5] "The Common Management Information Services and Protocol over TCP/IP," U. Warrier and L. Besaw, RFC-1095, April 1989. [MGT:6] "Report of the Second Ad Hoc Network Management Review Group," V. Cerf, RFC-1109, August 1989. Internet Engineering Task Force [Page 97] RFC1123 SUPPORT SERVICES -- MANAGEMENT October 1989 ¥»¥­¥å¥ê¥Æ¥£¤Ë´Ø¤¹¤ë¹ÍθÅÀ ¥Û¥¹¥È¥½¥Õ¥È¥¦¥§¥¢¤Î¥¢¥×¥ê¥±¡¼¥·¥ç¥ó¥×¥í¥°¥é¥àµÚ¤Ó¥µ¥Ý¡¼¥È¥×¥í¥°¥é¥à ¤Ë¤Ï¿¤¯¤Î¥»¥­¥å¥ê¥Æ¥£¤Ë´Ø¤¹¤ë²ÝÂ꤬¸ºß¤¹¤ë¤¬¡¢È´¤±¤Î¤Ê¤¤´°Á´¤ÊµÄÏÀ¤Ï ËÜRFC¤ÎÂоÝÈϰϤò±Û¤¨¤Æ¤¤¤ë¡£¥»¥­¥å¥ê¥Æ¥£¤Ë´Ø¤¹¤ë²ÝÂê¤Ï¡¢TFTP¤Ë´ØÏ¢ ¤¹¤ë¥»¥¯¥·¥ç¥ó(¥»¥¯¥·¥ç¥ó4.2.1¡¢4.2.3.4¡¢4.2.3.5)¡¢SMTP¤ÎVRFY¥³¥Þ¥ó¥É µÚ¤ÓEXPN¥³¥Þ¥ó¥É¤Ë´ØÏ¢¤¹¤ë¥»¥¯¥·¥ç¥ó(¥»¥¯¥·¥ç¥ó5.2.3)¡¢SMTP HELO ¥³¥Þ¥ó¥É¤Ë´ØÏ¢¤¹¤ë¥»¥¯¥·¥ç¥ó(¥»¥¯¥·¥ç¥ó5.2.5)¡¢SMTP DATA¥³¥Þ¥ó¥É¤Ë´ØÏ¢ ¤¹¤ë¥»¥¯¥·¥ç¥ó(¥»¥¯¥·¥ç¥ó5.2.8)¤Ç¤½¤ì¤¾¤ì½Ò¤Ù¤é¤ì¤Æ¤¤¤ë¡£ Author's Address Robert Braden USC/Information Sciences Institute 4676 Admiralty Way Marina del Rey, CA 90292-6695 Phone: (213) 822 1511 EMail: Braden@ISI.EDU Internet Engineering Task Force [Page 98]