tcpd

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Section: 8 (Commandes administrateur)

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tcpd - internet services ¤Î¤¿¤á¤Î¥¢¥¯¥»¥¹¥³¥ó¥È¥í¡¼¥ëµ¡Ç½

ÀâÌÀ

tcpd ¥×¥í¥°¥é¥à¤Ï¡¢telnet, finger, ftp, exec, rsh, rlogin, tftp, talk, comsat ¤ä¡¢¤½¤Î¾¡¢¼Â¹Ô¥Õ¥¡¥¤¥ë¤È°ìÂаì¤Ë¥Þ¥Ã¥×¤µ¤ì¤¿¥µ¡¼ ¥Ó¥¹¤ËÂФ¹¤ë¥ê¥¯¥¨¥¹¥È¤ò´Æ»ë¤¹¤ë¤¿¤á¤ËÀßÄꤹ¤ë¤â¤Î¤Ç¤¢¤ë¡£

¥×¥í¥°¥é¥à¤Ï 4.3BSD ¥¹¥¿¥¤¥ë¤Î sockets ¤È System V.4 ¥¹¥¿¥¤¥ë¤Î TLI ¤ÎξÊý¤ò¥µ¥Ý¡¼¥È¤·¤Æ¤¤¤ë¡£¤¿¤À¤·¡¢TLI ¤Î¸µ¤Ë¤¢¤ë¥×¥í¥È¥³¥ë¤¬ ¥¤¥ó¥¿¡¼¥Í¥Ã¥È¤Î¥×¥í¥È¥³¥ë¤Ç¤Ê¤¤¾ì¹ç¡¢µ¡Ç½¤ÏÀ©¸Â¤µ¤ì¤ë²ÄǽÀ­¤¬¤¢ ¤ë¡£

¤½¤Î»ÅÁȤߤϼ¡¤Î¤è¤¦¤Ë¤Ê¤Ã¤Æ¤¤¤ë: ¥µ¡¼¥Ó¥¹¤òµá¤á¤ë¥ê¥¯¥¨¥¹¥È¤¬ÆϤ¯¤È¡¢ inetd ¥Ç¡¼¥â¥ó¤Ï¡¢Í׵ᤵ¤ì¤¿¥µ¡¼¥Ó¥¹¤òµ¯Æ°¤¹¤ëÂå¤ï¤ê¤Ë¡¢ tcpd ¤ËÌòÌܤò¸òÂؤ¹¤ë¡£tcpd ¤Ï¥ê¥¯¥¨¥¹¥È¤ò¥í¥°¤Ëµ­Ï¿ ¤·¡¢¤¤¤¯¤Ä¤«¤Î¥Á¥§¥Ã¥¯¤ò¼Â¹Ô¤¹¤ë¡£¤¹¤Ù¤Æ¤è¤·¤È¤Ê¤ì¤Ð¡¢tcpd ¤ÏŬÀڤʥµ¡¼¥Ð¥×¥í¥°¥é¥à¤òµ¯Æ°¤·¡¢¤½¤·¤Æ»Ñ¤ò¾Ã¤¹¡£

¥ª¥×¥·¥ç¥Ê¥ë¤Êµ¡Ç½¤È¤·¤Æ: ¥Ñ¥¿¡¼¥ó·Á¼°¤Î¥¢¥¯¥»¥¹¥³¥ó¥È¥í¡¼¥ë¡¢ RFC 931 ¤Ê¤É¤Î¥×¥í¥È¥³¥ë¤Ë´ð¤Å¤¯¡¢¥¯¥é¥¤¥¢¥ó¥È¤Î¥æ¡¼¥¶Ì¾¤Îõºº¡¢ Ê̤Υۥ¹¥È̾¤òÁõ¤Ã¤Æ¤¤¤ë¥Û¥¹¥È¤«¤é¤ÎËɸ桢¤½¤·¤Æ¡¢Ê̤Υͥåȥ ¥¯¥¢¥É¥ì¥¹¤òÁõ¤Ã¤Æ¤¤¤ë¥Û¥¹¥È¤«¤é¤ÎËɸ桢¤Ê¤É¤¬¤¢¤ë¡£

¥í¥°¤Îµ­Ï¿

tcpd ¤Ë¤è¤Ã¤Æ´Æ»ë¤ÎÂоݤȤʤëÀܳ¤Ï¡¢ syslog(3) µ¡Ç½¤òÄ̤·¤ÆÊó¹ð¤µ¤ì¤ë¡£¤É¤Îµ­Ï¿¤â¡¢»þ¹ï¡¢¥¯¥é¥¤ ¥¢¥ó¥È¥Û¥¹¥È¤Î̾Á°¡¢Í׵ᤵ¤ì¤¿¥µ¡¼¥Ó¥¹Ì¾¤ò´Þ¤ó¤Ç¤¤¤ë¡£¤³¤Î¾ðÊó¤Ï¡¢ ÆÃ¤Ë¥í¥°¥Õ¥¡¥¤¥ëÃæ¤ËÊ£¿ô¤Î¥Û¥¹¥È¤Î¾ðÊ󤬺®ºß¤·¤Æ¤¤¤ë¾ì¹ç¤Ç¤â¡¢¹¥ ¤Þ¤·¤«¤é¤¶¤ë¹ÔÆ°¤ò»¡ÃΤ¹¤ë¤Ë¤ÏÍ­ÍѤǤ¢¤ë¡£

¤¢¤Ê¤¿¤Î¥í¥°¤¬¤É¤³¤Ëµ­Ï¿¤µ¤ì¤ë¤Î¤«Ä´¤Ù¤ë¤¿¤á¤Ë¤Ï¡¢syslog ¤ÎÀßÄê ¥Õ¥¡¥¤¥ë (ÂçÄñ¤Î¾ì¹ç¤Ï /etc/syslog.conf) ¤ò»²¾È¤¹¤ë¤³¤È¡£

¥¢¥¯¥»¥¹¤ÎÀ©¸æ

¥ª¥×¥·¥ç¥ó¤È¤·¤Æ¡¢ tcpd ¤Ï¡¢¥Ñ¥¿¡¼¥ó¥Þ¥Ã¥Á¥ó¥°¤Ë´ð¤Å¤¯¥¢¥¯¥»¥¹¥³¥ó¥È¥í¡¼¥ë¤Î¥·¥ó¥×¥ë¤Ê½ñ ¼°¤ò¥µ¥Ý¡¼¥È¤·¤Æ¤¤¤ë¡£¥¢¥¯¥»¥¹¥³¥ó¥È¥í¡¼¥ë¤Î¥½¥Õ¥È¥¦¥§¥¢¤Ï¡¢¥Ñ¥¿¡¼ ¥ó¤Ë¹çÃפ·¤¿»þ¤Ë¡¢¥·¥§¥ë¥³¥Þ¥ó¥É¤ò¼Â¹Ô¤¹¤ë¤¿¤á¤Î¥Õ¥Ã¥¯¤òÄ󶡤·¤Æ ¤¤¤ë¡£¾ÜºÙ¤Ï hosts_access(5) ¤Î¥Þ¥Ë¥å¥¢¥ë¤ò»²¾È¤Î¤³¤È¡£

¥Û¥¹¥È̾¤Î¸¡¾Ú

¤¤¤¯¤Ä¤«¤Î¥×¥í¥È¥³¥ë (rlogin, rsh) ¤Îǧ¾Ú¤Î»ÅÁȤߤϡ¢¥Û¥¹ ¥È¤Î̾Á°¤ËÍê¤Ã¤Æ¤¤¤ë¡£¤¢¤ë¼ÂÁõ¤Ï¡¢¥é¥ó¥À¥à¤Ê¥Í¡¼¥à¥µ¡¼¥Ð¤«¤éÆÀ ¤¿¥Û¥¹¥È̾¤ò¿®ÍѤ¹¤ë¤è¤¦¤Ë¤Ê¤Ã¤Æ¤¤¤ë¡£Ê̤μÂÁõ¤Ç¤Ï¤â¤Ã¤ÈÃí°Õ¿¼¤¤ ¤¬¡¢·ç´Ù¤Î¤¢¤ë¥¢¥ë¥´¥ê¥º¥à¤ò»È¤Ã¤Æ¤¤¤ë¡£

tcpd ¤Ï¡¢¥¢¥É¥ì¥¹¢ªÌ¾Á°¤ÎËÝÌõ¤ò¹Ô¤Ê¤¦ DNS ¥µ¡¼¥Ð¤«¤éÊÖÅú¤µ¤ì¤ë¥¯¥é ¥¤¥¢¥ó¥È¤Î¥Û¥¹¥È̾¤È¡¢Ì¾Á°¢ª¥¢¥É¥ì¥¹¤ÎËÝÌõ¤ò¹Ô¤Ê¤¦ DNS ¥µ¡¼¥Ð ¤«¤éÊÖÅú¤µ¤ì¤ë¥Û¥¹¥È̾¤È¤òÆͤ­¹ç¤ï¤»¡¢³Îǧ¤ò¹Ô¤¦¡£²¿¤é¤«¤ÎÌ·½â ¤¬È¯³Ð¤¹¤ë¤È¡¢ tcpd ¤Ï¡¢¤³¤ì¤Ï¤É¤³¤«¤è¤½¤Î¥Û¥¹¥È¤Î̾Á°¤òµ¶Áõ¤·¤Æ¤¤¤ë¥Û¥¹¥È¤È¤Î¼è¤ê°ú ¤­¤Ç¤¢¤ë¡¢¤ÈȽÄꤹ¤ë¡£¥½¡¼¥¹¤¬ -DPARANOID ¤Ç¥³¥ó¥Ñ¥¤¥ë¤µ¤ì¤Æ¤¤¤ë ¤Ê¤é¡¢ tcpd ¤Ï¡¢¥Û¥¹¥È̾/¥¢¥É¥ì¥¹¤ÎÉÔ°ìÃפ¬¤¢¤ë¾ì¹ç¡¢Àܳ¤òÀÚÃǤ¹¤ë¤³¤È¤Ë¤Ê ¤ë¡£¤µ¤â¤Ê¤¯¤Ð¡¢¤·¤«¤ë¤Ù¤­¹ÔÆ°¤¬¤È¤é¤ì¤¿¤Î¤Á¤Ë¡¢¥Û¥¹¥È̾¤ò PARANOID ¤Î¥ï¥¤¥ë¥É¥«¡¼¥É¤Ë¥Þ¥Ã¥Á¤µ¤»¤ë¤³¤È¤¬¤Ç¤­¤ë¡£

¥Û¥¹¥È¥¢¥É¥ì¥¹¤Îº¾¾Î

¥ª¥×¥·¥ç¥ó¤È¤·¤Æ¡¢ tcpd ¤Ï¡¢¼è¤ê°ú¤­¤¹¤ëÀܳ¤Î¤¿¤Ó¤Ë source-routing socket option ¤ò̵¸ú ¤Ë¤Ç¤­¤ë¡£¤³¤ì¤Ë¤è¤Ã¤Æ¡¢¤è¤½¤Î¥Í¥Ã¥È¥ï¡¼¥¯¤Ë°¤¹¤ë¥¢¥É¥ì¥¹¤òµ¶Áõ ¤·¤Æ¤¤¤ë¥Û¥¹¥È¤«¤é¤Î¡¢ÂçÄñ¤Î¹¶·â¤ËÈ÷¤¨¤ë¤³¤È¤¬¤Ç¤­¤ë¤À¤í¤¦¡£UDP ¥µ¡¼¥Ó¥¹¤Ë¤Ä¤¤¤Æ¤Ï¡¢¤³¤ÎËɸæ¤ÏÌò¤ËΩ¤¿¤Ê¤¤¡£¤³¤Îµ¡Ç½¤Ë¤Ä¤¤¤Æ¤Ï¡¢ ¥³¥ó¥Ñ¥¤¥ë»þ¤ËÍ­¸ú¤Ë¤Ê¤Ã¤Æ¤¤¤Ê¤±¤ì¤Ð¤Ê¤é¤Ê¤¤¡£

RFC 931

RFC 931 ¤Ê¤É¤Ë´ð¤Å¤¯Ì䤤¹ç¤ï¤»¤¬Í­¸ú¤Ê¾ì¹ç (¤³¤ì¤Ï¥³¥ó¥Ñ¥¤¥ë»þ¤Î ¥ª¥×¥·¥ç¥óÀßÄê)¡¢tcpd ¤Ï¥¯¥é¥¤¥¢¥ó¥È¥æ¡¼¥¶¤Î̾Á°¤ò¸¡¾Ú¤·¤è ¤¦¤È»î¤ß¤ë¡£¤³¤ì¤Ï¡¢¥¯¥é¥¤¥¢¥ó¥È¥Û¥¹¥È¤¬ RFC 931 ¸ß´¹¤Î¥Ç¡¼¥â¥ó ¤òÆ°ºî¤µ¤»¤Æ¤¤¤ë¾ì¹ç¤Ë¤À¤±À®¸ù¤¹¤ë¡£¤³¤Î¥¯¥é¥¤¥¢¥ó¥È¥æ¡¼¥¶Ì¾¤ÎÌä ¤¤¹ç¤ï¤»¤Ï¡¢¥Ç¡¼¥¿»Ø¸þ¤Î¹â¤¤¥³¥Í¥¯¥·¥ç¥ó¤ËÂФ·¤Æ¤Ïµ¡Ç½¤»¤º¡¢¤Þ¤¿ ¥Ñ¡¼¥½¥Ê¥ë¥·¥¹¥Æ¥à(PCs) ¤«¤é¤ÎÀܳ¤Î¾ì¹ç¤Ï¡¢Ãø¤·¤¯ÃÙ¤¯¤Ê¤ë¤«¤âÃÎ ¤ì¤Ê¤¤¡£

Îã

tcpd ¤ÎÍøÍÑË¡¤Î¾ÜºÙ¤Ï¡¢¥³¥ó¥Ñ¥¤¥ë»þ¤Ë¥×¥í¥°¥é¥à¤ÎÃæ¤ËÆþ¤ì ¤é¤ì¤¿ pathname ¤Ë°Í¸¤¹¤ë¡£

Îã 1

¤³¤ÎÎã¤Ç¤Ï¡¢tcpd ¤Ï¡¢¥ª¥ê¥¸¥Ê¥ë¤Î¥Í¥Ã¥È¥ï¡¼¥¯¥Ç¡¼¥â¥ó¤¬ÊÌ ¤Î¾ì½ê¤Ë°ÜÆ°¤µ¤ì¤ë¤³¤È¤ò´üÂÔ¤·¤Æ¤¤¤ë¡£

finger ¥µ¡¼¥Ó¥¹¤Ø¤Î¥¢¥¯¥»¥¹¤ò´Æ»ë¤¹¤ë¤¿¤á¤Ë¤Ï¡¢¥ª¥ê¥¸¥Ê¥ë ¤Î finger ¥Ç¡¼¥â¥ó¤ÏÊ̤ξì½ê¤Ø¤È°ÜÆ°¤·¡¢¸µ¡¹ finger ¥Ç¡¼¥â¥ó¤¬¤¤ ¤¿¾ì½ê¤Ë¤Ï tcpd ¤ò¥¤¥ó¥¹¥È¡¼¥ë¤¹¤ë¡£ÀßÄê¥Õ¥¡¥¤¥ë¤Ø¤ÎÊѹ¹¤ÏɬÍ×¤Ê ¤¤¡£




# mkdir /other/place

# mv /usr/etc/in.fingerd /other/place

# cp tcpd /usr/etc/in.fingerd

¤³¤ÎÎã¤Ç¤Ï¡¢¥Í¥Ã¥È¥ï¡¼¥¯¥Ç¡¼¥â¥ó¤Ï /usr/etc ¤Ë¤¢¤ë¤â¤Î¤È¤¹¤ë¡£¥· ¥¹¥Æ¥à¤Ë¤è¤Ã¤Æ¤Ï¡¢¥Í¥Ã¥È¥ï¡¼¥¯¥Ç¡¼¥â¥ó¤Ï /usr/sbin ¤Þ¤¿¤Ï /usr/libexec ¤ËÃÖ¤«¤ì¤Æ¤¤¤¿¤ê¡¢Ì¾Á°¤ÎƬ¤Ë `in.' ¤È¤¤¤¦Ê¸»ú¤ò»ý¤Ã ¤Æ¤¤¤Ê¤«¤Ã¤¿¤ê¤¹¤ë¡£

Îã 2

¤³¤ÎÎã¤Ç tcpd ¤Ï¡¢¥Í¥Ã¥È¥ï¡¼¥¯¥Ç¡¼¥â¥ó¤Ï¡¢¤½¤Î¥ª¥ê¥¸¥Ê¥ë¤Î ¾ì½ê¤ËÃÖ¤«¤ì¤Æ¤¤¤ë»ö¤òÁÛÄꤷ¤Æ¤¤¤ë¡£

finger ¥µ¡¼¥Ó¥¹¤Ø¤Î¥¢¥¯¥»¥¹¤ò´Æ»ë¤¹¤ë¤¿¤á¤Ë¤Ï¡¢¼¡¤Ë¼¨¤¹¤è ¤¦¤ÊÊѹ¹¤ò inetd ¤ÎÀßÄê¥Õ¥¡¥¤¥ë (ÂçÄñ¤Î¾ì¹ç¡¢ /etc/inetd.conf ¤Þ¤¿¤Ï /etc/inet/inetd.conf) ¤ËÂФ· ¤Æ¹Ô¤Ê¤¦:





finger stream tcp nowait nobody /usr/etc/in.fingerd in.fingerd ¤³¤ì¤ò¼¡¤Î¤è¤¦¤Ë:
finger stream tcp nowait nobody /some/where/tcpd in.fingerd

¤³¤ÎÎã¤Ç¤Ï¡¢¥Í¥Ã¥È¥ï¡¼¥¯¥Ç¡¼¥â¥ó¤Ï /usr/etc ¤Ë¤¢¤ë¤â¤Î¤È¤¹¤ë¡£¥· ¥¹¥Æ¥à¤Ë¤è¤Ã¤Æ¤Ï¡¢¥Í¥Ã¥È¥ï¡¼¥¯¥Ç¡¼¥â¥ó¤Ï /usr/sbin ¤Þ¤¿¤Ï /usr/libexec ¤ËÃÖ¤«¤ì¤Æ¤¤¤¿¤ê¡¢Ì¾Á°¤ÎƬ¤Ë `in.' ¤È¤¤¤¦Ê¸»ú¤ò»ý¤Ã ¤Æ¤¤¤Ê¤«¤Ã¤¿¤ê¡¢¤¢¤ë¤¤¤Ï inetd ¤ÎÀßÄê¥Õ¥¡¥¤¥ë¤Ë¤Ï userid ¤Î¹àÌÜ ¤¬Â¸ºß¤·¤Ê¤¤¤³¤È¤â¤¢¤ë¡£

»÷¤¿¤è¤¦¤ÊÊѹ¹¤¬¡¢tcpd ¤Ç¥«¥Ð¡¼¤µ¤ì¤ë¤½¤Î¾¤Î¥µ¡¼¥Ó¥¹¤ËÂÐ ¤·¤Æ¤âɬÍפˤʤë¤À¤í¤¦¡£Êѹ¹¤òÍ­¸ú¤Ê¤â¤Î¤È¤¹¤ë¤¿¤á¡¢ inetd(8) ¤Î¥×¥í¥»¥¹¤ËÂФ·¤Æ `kill -HUP' ¤òÁ÷½Ð¤¹¤ë¡£AIX ¤Î¥æ¡¼¥¶¤Ï `inetimp' ¥³¥Þ¥ó¥É¤â¼Â¹Ô¤¹¤ëɬÍפ¬¤¢¤ë¤«¤â¤·¤ì¤Ê¤¤¡£

Îã 3

¥Ç¡¼¥â¥ó¤¬ÉáÄ̤Ǥʤ¤¥Ç¥£¥ì¥¯¥È¥ê("secret" ¤ä¤½¤Î¾)¤ËÃÖ¤«¤ì¤Æ¤¤ ¤ë¾ì¹ç¡¢inetd ¤ÎÀßÄê¥Õ¥¡¥¤¥ë¤òÊÔ½¸¤·¤Æ¡¢¥×¥í¥»¥¹Ì¾¤Î¹à¤Ë¤Ï ÀäÂХѥ¹Ì¾¤ÇÌÀ¼¨¤¹¤ë¤è¤¦¤Ë¡£Îã:



    ntalk  dgram  udp  wait  root  /some/where/tcpd  /usr/local/lib/ntalkd



¥Ñ¥¹Ì¾¤Î°ìÈֺǸå¤ÎÍ×ÁÇ (ntalkd) ¤À¤±¤¬¥¢¥¯¥»¥¹¥³¥ó¥È¥í¡¼¥ë¤È¡¢¥í ¥°¤Îµ­Ï¿¤Ë»È¤ï¤ì¤ë¡£

¥Ð¥°

¤¤¤¯¤Ä¤«¤Î UDP (¤½¤·¤Æ RPC) ¥Ç¡¼¥â¥ó¤Ï¡¢¤½¤Î»Å»ö¤¬½ª¤ï¤Ã¤Æ¡¢Ê̤Π¥ê¥¯¥¨¥¹¥È¤¬¤ä¤Ã¤ÆÍè¤Æ¤â¡¢¤·¤Ð¤é¤¯¤Î´Ö¡¢Ì¾»ÄÀˤ·¤½¤¦¤Ë¥×¥í¥»¥¹¶õ ´Ö¤ò¤¦¤í¤Ä¤¤¤Æ¤¤¤ë¡£¤³¤ì¤é¤Î¥µ¡¼¥Ó¥¹¤Ï¡¢inetd ¤ÎÀßÄê¥Õ¥¡¥¤¥ë¤ÎÃæ ¤Ç¡¢wait ¥ª¥×¥·¥ç¥ó¤È¤È¤â¤ËÅÐÏ¿¤µ¤ì¤Æ¤¤¤ë¡£¤³¤Î¤è¤¦¤Ê¥Ç¡¼ ¥â¥ó¤Ï¡¢¤½¤ì¤òµ¯Æ°¤·¤¿¥ê¥¯¥¨¥¹¥È¤À¤±¤¬¥í¥°¤Ëµ­Ï¿¤µ¤ì¤ë¤³¤È¤Ë¤Ê¤ë¡£

¥×¥í¥°¥é¥à¤Ï¡¢TCP ·Ðͳ¤Î RPC ¥µ¡¼¥Ó¥¹¤Ë¤ª¤¤¤Æ¤ÏÆ°ºî¤·¤Ê¤¤¡£¤³¤ì ¤é¤Î¥µ¡¼¥Ó¥¹¤Ï¡¢inetd ¤ÎÀßÄê¥Õ¥¡¥¤¥ë¤ÎÃæ¤Ç¡¢rpc/tcp ¤È¤·¤Æ ÅÐÏ¿¤µ¤ì¤Æ¤¤¤ë¡£¤³¤ÎÀ©¸Â¤Ë¤è¤Ã¤Æ±Æ¶Á¤µ¤ì¤ëÍ£°ìÆÃÊ̤ʥµ¡¼¥Ó¥¹¤Ï¡¢ on(1) ¥³¥Þ¥ó¥É¤Ë¤è¤Ã¤ÆÍøÍѤµ¤ì¤ërexd ¤Ç¤¢¤ë¡£¤·¤«¤·¡¢ ¤³¤ì¤ÏÂ礷¤¿¥í¥¹¤Ç¤Ï¤Ê¤¤¡£ÂçÄñ¤Î¥·¥¹¥Æ¥à¤Ë¤ª¤¤¤Æ¡¢rexd ¤Ï /etc/hosts.equiv ¤ÎÃæ¤Î¥ï¥¤¥ë¥É¥«¡¼¥É¤è¤ê¤â°ÂÁ´ÅÙ¤¬Ä㤤¤Î¤À¡£

RPC broadcast ¥ê¥¯¥¨¥¹¥È (Îã: rwall, rup, rusers) ¤¬¡¢±þÅú ¤Î¤¢¤ë¥Û¥¹¥È¤«¤é¾ï¤Ë¤ä¤Ã¤Æ¤¯¤ë¤³¤È¤¬¤¢¤ë¡£¥¯¥é¥¤¥¢¥ó¥È¤¬¡¢¤½¤Î¥Í¥Ã ¥È¥ï¡¼¥¯¾å¤ÎÁ´¤Æ¤Î portmap ¥Ç¡¼¥â¥ó¤ËÂФ·¤Æ¥Ö¥í¡¼¥É¥­¥ã¥¹ ¥È¤·¤Æ¤¤¤ë¡¢¤È¤¤¤¦¤Î¤¬¤½¤Î¼ÂÂ֤Ǥ¢¤ë; ¤É¤Î portmap ¥Ç¡¼¥â ¥ó¤â¡¢¥ê¥¯¥¨¥¹¥È¤Ï¥í¡¼¥«¥ë¤Î¥Ç¡¼¥â¥ó¤Ø¤ÈžÁ÷¤¹¤ë¡£rwall ¤Ê ¤É¤Î¥Ç¡¼¥â¥ó¤¬ÃΤë¸Â¤ê¡¢¥ê¥¯¥¨¥¹¥È¤Ï¥í¡¼¥«¥ë¥Û¥¹¥È¤«¤éÁ÷¤é¤ì¤Æ¤¯ ¤ë¤Î¤Ç¤¢¤ë¡£

¥Õ¥¡¥¤¥ë

¥Û¥¹¥È¥¢¥¯¥»¥¹¥³¥ó¥È¥í¡¼¥ë¥Æ¡¼¥Ö¥ë:

/etc/hosts.allow
/etc/hosts.deny

´ØÏ¢¹àÌÜ


hosts_access(5), ¥Û¥¹¥È¥¢¥¯¥»¥¹¥³¥ó¥È¥í¡¼¥ë¥Õ¥¡¥¤¥ë¤Î½ñ¼°

syslog.conf(5), syslogd ¥³¥ó¥È¥í¡¼¥ë¥Õ¥¡¥¤¥ë¤Î½ñ¼°

inetd.conf(5), the inetd ¥³¥ó¥È¥í¡¼¥ë¥Õ¥¡¥¤¥ë¤Î½ñ¼°

 

Ãø¼Ô


Wietse Venema (wietse@wzv.win.tue.nl),

Department of Mathematics and Computing Science,

Eindhoven University of Technology

Den Dolech 2, P.O. Box 513, 

5600 MB Eindhoven, The Netherlands

 

ËÝÌõ

FUKUSHIMA Osamu <fuku@amorph.rim.or.jp>