Linux Certif

Toute la documentation sur la certification Linux LPI

tcpdchk

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tcpdchk - tcp wrapper ÀßÄê¤Î¥Á¥§¥Ã¥«¡¼

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tcpdchk [-a] [-d] [-i inet_conf] [-v]

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tcpdchk ¤Ï tcp wrapper ¤Ë´ØÏ¢¤¹¤ëÀßÄê¥Õ¥¡¥¤¥ë¤ò¸¡ºº¤·¡¢ ¥È¥é¥Ö¥ë¤Ë¤Ä¤Ê¤¬¤ë²ÄǽÀ­¤ä¡¢¤Þ¤µ¤Ë¥È¥é¥Ö¥ë¤¬ µ¯¤­¤Æ¤¤¤ëÌäÂêÅÀ¤ò»ØŦ¤¹¤ë¤¿¤á¤Î¤â¤Î¤Ç¤¢¤ë¡£ ¥×¥í¥°¥é¥à¤Ïtcpd ¤Î¥¢¥¯¥»¥¹¥³¥ó¥È¥í¡¼¥ë¥Õ¥¡¥¤¥ë (¥Ç¥Õ¥©¥ë ¥È¤Ç¤Ï /etc/hosts.allow ¤È /etc/hosts.deny) ¤ò¸¡ºº¤·¡¢ ¤½¤ì¤é¤Î¥Õ¥¡¥¤¥ë¤Ë½ñ¤«¤ì¤¿¹àÌܤò¡¢inetd ¤ä tlid ¤Ê¤É¤Î ¥Í¥Ã¥È¥ï¡¼¥¯ÀßÄê¥Õ¥¡¥¤¥ëÃæ¤Î¹àÌܤÈÈæ³Ó¸¡¾Ú¤¹¤ë¡£

tcpdchk ¤Ï¡¢°Ê²¼¤Ë¼¨¤¹¤è¤¦¤ÊÌäÂêÅÀ¤òÊó¹ð¤¹¤ë: ¡Ö¸ºß¤·¤Ê¤¤¥Ñ¥¹Ì¾¤¬½ñ¤«¤ì¤Æ¤¤¤ë¡×¡¢ ¡Ötcpd ¤Î¥¢¥¯¥»¥¹¥³¥ó¥È¥í¡¼¥ë¥Õ¥¡¥¤¥ë¤Ëµ­¤µ¤ì¤Æ¤¤¤ë¤¬¡¢ tcpd ¤Ë¤è¤Ã¤Æ¥³¥ó¥È¥í¡¼¥ë¤Ç¤­¤Ê¤¤¥µ¡¼¥Ó¥¹¤Ç¤¢¤ë¡×¡¢ ¡Ö¥é¥Ã¥×¤µ¤ì¤ë¤Ù¤­¤Ç¤Ê¤¤¥µ¡¼¥Ó¥¹¤Ç¤¢¤ë¡×¡¢ ¡Ö¸ºß¤·¤Ê¤¤¡¢¤¢¤ë¤¤¤Ï¥¤¥ó¥¿¡¼¥Í¥Ã¥È¤Î¥¢¥É¥ì¥¹·Á¼°¤Ç¤Ê¤¤¥Û¥¹¥È̾ ¤¬½ñ¤«¤ì¤Æ¤¤¤ë¡×¡¢ ¡ÖÀµ¼°¤Ê¥Û¥¹¥È̾¤Î¤«¤ï¤ê¤Ë¡¢¤½¤ÎÊÌ̾¤¬»È¤ï¤ì¤Æ¤¤¤ë¡×¡¢ ¡Ö̾Á°¤È¥¢¥É¥ì¥¹¤¬°ìÃפ·¤Ê¤¤¥Û¥¹¥È¤¬¤¢¤ë¡×¡¢ ¡Ö¥ï¥¤¥ë¥É¥«¡¼¥É¥Ñ¥¿¡¼¥ó¤òÉÔŬÅö¤Ë»ÈÍѤ·¤Æ¤¤¤ë¡×¡¢ ¡ÖNIS ¥Í¥Ã¥È¥°¥ë¡¼¥×̾¤òÉÔŬÅö¤Ë»ÈÍѤ·¤Æ¤¤¤ë¡¢¤Þ¤¿¤Ï¸ºß¤·¤Ê¤¤ NIS ¥Í¥Ã¥È¥°¥ë¡¼¥×̾¤ò»²¾È¤·¤Æ¤¤¤ë¡×¡¢ ¡Ö¸ºß¤·¤Ê¤¤¥ª¥×¥·¥ç¥ó¤ò¤Ä¤«¤Ã¤Æ¤¤¤ë¡×¡¢ ¡Ö¥ª¥×¥·¥ç¥ó¤ËÀµ¤·¤¯¤Ê¤¤°ú¿ô¤¬¤Ä¤«¤ï¤ì¤Æ¤¤¤ë¡×¡¢ ¤Ê¤É¤Ê¤É¡£

ÌäÂêÅÀ¤ËÂФ·¤Æ¤Ï¡¢tcpdchk ¤«¤é¤½¤ì¤ò½¤Àµ¤¹¤ë¤¿¤á¤Î Í­°ÕµÁ¤Ê½õ¸À¤òÆÀ¤ë¤³¤È¤¬¤Ç¤­¤ë¤À¤í¤¦¡£

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-a

ALLOW ¥­¡¼¥ï¡¼¥É¤¬ÌÀ¼¨Åª¤Ë»È¤ï¤ì¤Æ¤¤¤Ê¤¤¾ì¹ç¤Ç¡¢¥¢¥¯¥»¥¹¤¬µö²Ä¤µ ¤ì¤Æ¤¤¤ë¥³¥ó¥È¥í¡¼¥ë¥ë¡¼¥ë¤òÊó¹ð¤¹¤ë¡£ ¤³¤ì¤Ï¥¢¥¯¥»¥¹¥³¥ó¥È¥í¡¼¥ë½ñ¼°¤Î³ÈÄ¥¤¬Í­¸ú¤Ë¤Ê¤Ã¤Æ¤¤¤ë (-DPROCESS_OPTIONS ¤ò»ØÄꤷ¤Æ¥³¥ó¥Ñ¥¤¥ë¤µ¤ì¤Æ¤¤¤ë) ¾ì¹ç ¤Ë¤Î¤ßÍ­¸ú¤Ç¤¢¤ë¡£

-d

¥·¥¹¥Æ¥à¤Î¥Ç¥Õ¥©¥ë¥È¤Î¥Õ¥¡¥¤¥ë¤Ç¤Ê¤¯¡¢¥«¥ì¥ó¥È¥Ç¥£¥ì¥¯¥È¥ê¤Ë¤¢¤ë hosts.allow ¤È hosts.deny ¤ò¸¡ºº¤¹¤ë¡£

-i inet_conf

tcpdchk ¤¬ inetd.conf ¤Þ¤¿¤Ï tlid.conf ¤ò¼«Ê¬ ¤Ç¸«¤Ä¤±¤ë¤³¤È¤¬¤Ç¤­¤Ê¤¤¾ì¹ç¡¢¤¢¤ë¤¤¤Ï¥×¥í¥°¥é¥à¤¬¤Þ¤Á¤¬¤Ã¤¿¥Õ¥¡ ¥¤¥ë¤ò»²¾È¤·¤Æ¤¤¤ëµ¿¤¤¤¬¤¢¤ë¾ì¹ç¤Ë¡¢¤³¤Î¥ª¥×¥·¥ç¥ó¤ò»È¤¦¡£

-v

¥¢¥¯¥»¥¹¥³¥ó¥È¥í¡¼¥ë¤Î¥ë¡¼¥ë¤ÎÃæ¿È¤òɽ¼¨¤¹¤ë¡£¥Ç¡¼¥â¥ó¤Î¥ê¥¹¥È¡¢ ¥¯¥é¥¤¥¢¥ó¥È¤Î¥ê¥¹¥È¡¢¥·¥§¥ë¥³¥Þ¥ó¥É¡¢¤½¤·¤Æ¥ª¥×¥·¥ç¥ó¤¬Æɤߤ䤹 ¤¤¥Õ¥©¡¼¥Þ¥Ã¥È¤Ç½ÐÎϤµ¤ì¤ë¡£¤³¤ì¤Ï¡¢Ë¾¤ó¤Ç¤¤¤ë¤â¤Î¤È¡¢¥×¥í¥°¥é¥à ¤¬²ò¼á¤·¤Æ¤¤¤ë¤³¤È¤Î´Ö¤ÎÌ·½â¤ò¸«¶Ë¤á¤ë¤Î¤ËÌò¤Ë¤¿¤Ä¡£

¥Õ¥¡¥¤¥ë

tcpd ¤Î¥¢¥¯¥»¥¹¥³¥ó¥È¥í¡¼¥ë¥Õ¥¡¥¤¥ë¤Î¥Ç¥Õ¥©¥ë¥È¤Ï:

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

´ØÏ¢¹àÌÜ

tcpdmatch(8), ÆÃÄê¤Î¥±¡¼¥¹¤Ç¤Î tcpd ¤Î¤Õ¤ë¤Þ¤¤¤òÀâÌÀ¤¹¤ë¥×¥í¥°¥é¥à

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

hosts_options(5), ¥Û¥¹¥È¥¢¥¯¥»¥¹¥³¥ó¥È¥í¡¼¥ë¤Î³ÈÄ¥½ñ¼°

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

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

 

AUTHORS

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>