Linux Certif

Toute la documentation sur la certification Linux LPI

dhclient.conf

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dhclient.conf ¥Õ¥¡¥€¥ë€Ë€Ï Internet Systems Consortium €Î DHCP ¥¯¥é¥€¥¢¥ó¥È€Ç€¢€ë dhclient €ÎÀßÄêŸðÊ󀬎ހހì€Þ€¹¡£

dhclient.conf €ÏŒ«Í³·ÁŒ°€Î ASCII ¥Æ¥­¥¹¥È¥Õ¥¡¥€¥ë€Ç€¹¡£ €³€Î¥Õ¥¡¥€¥ë€Ï dhclient €ËÁȀ߹þ€Þ€ì€¿ºÆµ¢²Œ¹ß¥Ñ¡Œ¥¶€Ë²òÀÏ€µ€ì€Þ€¹¡£ ¥Õ¥¡¥€¥ë€Ë€Ï¡¢À°·Á€ÎÌÜŪ€Ç¥¿¥Ö€ä²þ¹Ô€ò͟ʬ€ËŽÞ€á€ë€³€È€â€Ç€­€Þ€¹¡£ ¥Õ¥¡¥€¥ëÃæ€Î¥­¡Œ¥ï¡Œ¥É€Ç€ÏÂçÊž»úŸ®Êž»ú€ò¶èÊÌ€·€Þ€»€ó¡£ (¥¯¥©¡Œ¥ÈÆâ€Ïœü€€€Æ) ¥Õ¥¡¥€¥ëÃæ€Î€É€³€Ç€â¥³¥á¥ó¥È€òÃÖ€¯€³€È€¬€Ç€­€Þ€¹¡£ ¥³¥á¥ó¥È€ÏÊž»ú # €Ç»Ï€Þ€ê¡¢¹ÔËö€Çœª€ï€ê€Þ€¹¡£

dhclient.conf ¥Õ¥¡¥€¥ë€Ç¡¢¥¯¥é¥€¥¢¥ó¥È€Î€µ€Þ€¶€Þ€ÊÆ°ºî€òÀßÄê€Ç€­€Þ€¹¡£ €œ€ì€é€Ë€Ï¡¢¥×¥í¥È¥³¥ë€Î¥¿¥€¥ß¥ó¥°¡¢¥µ¡Œ¥Ð€ËÂЀ·€ÆÍ׵္€ëŸðÊó¡¢ ¥µ¡Œ¥Ð€ËÂЀ·€Æɬ¿Ü€È€µ€ì€ëŸðÊó¡¢ ¥µ¡Œ¥Ð€¬ŸðÊó€òÄ󶡀·€Ê€«€Ã€¿Ÿì¹ç€ËÍÑ€€€ë¥Ç¥Õ¥©¥ë¥È¡¢ ¥µ¡Œ¥Ð€«€éÄ󶡀µ€ì€¿ŸðÊó€òŸåœñ€­€¹€ëÃÍ¡¢ ¥µ¡Œ¥Ð€«€éÄ󶡀µ€ì€¿ŸðÊó€ËÁ°ÃÖ€äžåÃÖ€¹€ëÃ̀ʀɀ¬€¢€ê€Þ€¹¡£ €Þ€¿¡¢DHCP ¥µ¡Œ¥Ð€ò»ý€¿€Ê€€¥Í¥Ã¥È¥ï¡Œ¥¯€Ç»È€Š¥¢¥É¥ì¥¹€Ç€¢€Ã€Æ€â¡¢ €¢€é€«€ž€áÀßÄê¥Õ¥¡¥€¥ë€ÇœéŽü²œ€¹€ë€³€È€â€Ç€­€Þ€¹¡£

¥×¥í¥È¥³¥ë€Î¥¿¥€¥ß¥ó¥°

¥¯¥é¥€¥¢¥ó¥È€Î¥¿¥€¥ß¥ó¥°Æ°ºî€Ï¡¢¥æ¡Œ¥¶€¬ÀßÄꀹ€ëɬÍ׀π¢€ê€Þ€»€ó¡£ ¥æ¡Œ¥¶€¬¥¿¥€¥ß¥ó¥°ÀßÄê€ò¹Ô€ï€Ê€±€ì€Ð¡¢ ¥µ¡Œ¥Ð€Ë̵Ãáœø€ËÉé²Ù€òÍ¿€š€¿€ê€»€ºÅ¬»þ¹¹¿·€ò¹Ô€Š€è€Š€Ê¡¢ œŒÊ¬€ËŬÀڀʥ¿¥€¥ß¥ó¥°Æ°ºî€¬¥Ç¥Õ¥©¥ë¥È€ÇÍÑ€€€é€ì€Þ€¹¡£

€·€«€·¡¢É¬Í׀˱þ€ž€Æ¡¢ Œ¡€ÎÊž€ò»ØÄꀷ€Æ DHCP ¥¯¥é¥€¥¢¥ó¥È€Î¥¿¥€¥ß¥ó¥°Æ°ºî€òÄŽÀá€Ç€­€Þ€¹:

timeout Êž

timeout time ;

timeout Êž€Ï¡¢¥¯¥é¥€¥¢¥ó¥È€¬¥¢¥É¥ì¥¹€ò·è€á€ë»î€ß€ò³«»Ï€·€Æ€«€é¡¢ ¥µ¡Œ¥Ð€Ë¥¢¥¯¥»¥¹€¹€ë€³€È€¬ €Ç€­€Ê€€€ÈÈœÃÇ€¹€ë€Þ€Ç€Ë·Ð²á€¹€Ù€­»þŽÖ€ò·è€á€Þ€¹¡£ ¥Ç¥Õ¥©¥ë¥È€Ç€Ï€³€Î¥¿¥€¥à¥¢¥Š¥ÈÃÍ€Ï 60 ÉÀǀ¹¡£ €³€Î¥¿¥€¥à¥¢¥Š¥ÈÃÍ€¬²á€®€¿žå€Ï¡¢ €â€·ÀÅŪ€Ê¥ê¡Œ¥¹€¬ÀßÄê¥Õ¥¡¥€¥ë€ËÄêµÁ€µ€ì€Æ€€€ë€«¡¢ ¥ê¡Œ¥¹¥Ç¡Œ¥¿¥Ù¡Œ¥¹€Ë€Þ€ÀŽüžÂÀÚ€ì€Ë€Ê€Ã€Æ€€€Ê€€¥ê¡Œ¥¹€¬»Ä€Ã€Æ€€€ì€Ð¡¢ ¥¯¥é¥€¥¢¥ó¥È€Ï€œ€ì€é€Î¥ê¡Œ¥¹€ò€Ò€È€Ä€º€Äž¡ŸÚ€·€Æ€ß€Æ¡¢ €€€º€ì€«€¬Í­žú€Ê€è€Š€Ç€¢€ì€Ð€œ€Î¥ê¡Œ¥¹€Î¥¢¥É¥ì¥¹€ò»È€€€Þ€¹¡£ €â€·ÀÅŪ€Ê¥ê¡Œ¥¹€â¡¢¥ê¡Œ¥¹¥Ç¡Œ¥¿¥Ù¡Œ¥¹Æâ€ÎŽüžÂ€ÎÀÚ€ì€Æ€€€Ê€€¥ê¡Œ¥¹€Ç Í­žú€Ê€â€Î€âžºß€·€Ê€±€ì€Ð¡¢ ¥¯¥é¥€¥¢¥ó¥È€ÏÄêµÁ€µ€ì€¿ retry ŽÖ³Ö€Îžå€Ç¥×¥í¥È¥³¥ë€òºÆ³«€µ€»€Þ€¹¡£

retry Êž

 retry time;

retry Êž€Ï¡¢¥¯¥é¥€¥¢¥ó¥È€¬ DHCP ¥µ¡Œ¥Ð€¬Âžºß€·€Ê€€€ÈÈœÃÇ€·€Æ€«€é ºÆ€Ó DHCP ¥µ¡Œ¥Ð€Ë¥¢¥¯¥»¥¹€ò»î€ß€ë€Þ€Ç€ÎŽÖ€Ë¡¢·Ð²á€¹€ë€Ù€­»þŽÖ€ò·è€á€Þ€¹¡£ ¥Ç¥Õ¥©¥ë¥È€Ç€Ï¡¢€³€ì€Ï 5 ʬ€Ç€¹¡£

select-timeout Êž

 select-timeout time;

€¢€ë¥Í¥Ã¥È¥ï¡Œ¥¯Ÿå€Ç¡¢Ê£¿ô€Î DHCP ¥µ¡Œ¥Ð€¬¥µ¡Œ¥Ó¥¹€òÄ󶡀¹€ë€³€È€â€Ç€­€Þ€¹ (€œ€ÎÊý€¬ËŸ€Þ€·€€€È€€€Š°Õž«€â€¢€ê€Þ€¹)¡£ €œ€ÎŸì¹ç¡¢ºÇœé€Î¥ê¡Œ¥¹È¯ž«¥á¥Ã¥»¡Œ¥ž (lease discovery message) €Ø€Î±þÅú€È€·€Æ¡¢ ¥¯¥é¥€¥¢¥ó¥È€¬Ê£¿ô€Î¥ê¡Œ¥¹Ä󶡀οœ€·œÐ€òŒõ€±€ë€³€È€â€¢€êÆÀ€Þ€¹¡£ €œ€ì€é€Î€Š€Á¡¢€¢€ëÄ󶡀¬ÂŸ€ÎÄ󶡀è€ê€â¹¥€Þ€·€€€«€â€·€ì€Þ€»€ó (Î〚€Ð¡¢¥¯¥é¥€¥¢¥ó¥È€¬°ÊÁ°»ÈÍÑ€·€Æ€€€¿¥¢¥É¥ì¥¹€¬€¢€ëÄ󶡀ˎހހì€Æ€€€ë€¬¡¢ Ÿ€ÎÄ󶡀ˀώހހì€Ê€€€Ê€É)¡£

select-timeout €Ï¥¯¥é¥€¥¢¥ó¥È€¬ºÇœé€Î¥ê¡Œ¥¹È¯ž«Í×µá €òÁ÷¿®€·€Æ¡¢ Ÿ¯€Ê€¯€È€â 1 €Ä€ÎÄ󶡿œ€·œÐ€òŒõ€±€¿Ÿì¹ç¡¢ ¥µ¡Œ¥Ð€«€é€ÎÄ󶡿œ€·œÐÂÔ€Á€ò€ä€á€ë€Þ€Ç€Î»þŽÖ€Ç€¹¡£ €â€· select-timeout €¬ÀÚ€ì€ë€Þ€Ç€Ë€É€³€«€é€âÄ󶡿œ€·œÐ€òŒõ€±Œè€ì€Ê€±€ì€Ð¡¢ ¥¯¥é¥€¥¢¥ó¥È€Ï€œ€Î€¢€ÈºÇœé€ËÅþÃ倹€ëÄ󶡿œ€·œÐ€òŒõ€±Æþ€ì€Þ€¹¡£

¥Ç¥Õ¥©¥ë¥È€Ç€Ï¡¢select-timeout ÃÍ€Ï 0 ÉÀǀ¹¡£ €Ä€Þ€ê¥¯¥é¥€¥¢¥ó¥È€ÏºÇœé€ËŒõ€±Œè€ëÄ󶡿œ€·œÐ€òŒõ€±Æþ€ì€Þ€¹¡£

reboot Êž

 reboot time;

¥¯¥é¥€¥¢¥ó¥È€Ï¡¢ºÆµ¯Æ°€¹€ë€È¡¢ ºÇžå€ËÊÝ»ý€·€Æ€€€¿¥¢¥É¥ì¥¹€ò€Þ€ºŒèÆÀ€·ÄŸ€œ€Š€È€·€Þ€¹¡£ €³€ì€ò INIT-REBOOT (œéŽü¥ê¥Ö¡Œ¥È) ŸõÂրȞƀӀހ¹¡£ ºÇžå€ËÆ°ºî€·€Æ€€€¿€È€­€ÈƱ€ž¥Í¥Ã¥È¥ï¡Œ¥¯€Ë ¥¯¥é¥€¥¢¥ó¥È€¬€Þ€ÀÀܳ€·€Æ€€€ì€Ð¡¢€³€ì€¬ºÇ€âÁÇÁကµ¯Æ°Ë¡€È€Ê€ê€Þ€¹¡£ reboot Êž€Ï¡¢¥¯¥é¥€¥¢¥ó¥È€¬ºÇœé€ËžÅ€€¥¢¥É¥ì¥¹€ÎºÆŒèÆÀ€ò»î€ß€Æ€«€é¡¢ €¢€­€é€á€Æ¿·€·€€¥¢¥É¥ì¥¹€òȯž«€·€è€Š€È€¹€ë€Þ€Ç€Ë¡¢ ·Ð²á€¹€Ù€­»þŽÖ€òÀßÄꀷ€Þ€¹¡£ ¥Ç¥Õ¥©¥ë¥È€Ç€Ï¡¢reboot ¥¿¥€¥à¥¢¥Š¥ÈÃÍ€Ï 10 ÉÀǀ¹¡£

backoff-cutoff Êž

 backoff-cutoff time;

¥¯¥é¥€¥¢¥ó¥È€Ï¡¢»Ø¿ôŪ€Ê°ì»þÂàÈò (backoff) ¥¢¥ë¥Ž¥ê¥º¥à€ò¡¢€¢€ëÄøÅـΠÍð¿ôÉÕ€­€Ç»ÈÍÑ€·€Þ€¹¡£€³€ì€Ï¡¢Â¿€¯€Î¥¯¥é¥€¥¢¥ó¥È€¬Æ±»þ€ËŒ«Ê¬€òÀßÄꀷ€è€Š €È€·€¿€È€­€Ç€â¡¢¥ê¥¯¥š¥¹¥È€¬¥í¥Ã¥¯€·€Æ€·€Þ€Š€³€È€¬€Ê€€€è€Š€Ë€¹€ë€¿€á€Ç€¹¡£ backoff-cutoff Êž€Ï¡¢°ì»þÂàÈò€Ëµö€µ€ì€¿ºÇÂç»þŽÖ€ò·èÄꀷ€Þ€¹¡£¥Ç¥Õ¥©¥ë¥ÈÃÍ€Ï 2 ʬ€Ç€¹¡£

initial-interval Êž

 initial-interval time;

initial-interval Êž€Ï¡¢¥µ¡Œ¥Ð€Ø€ÎºÇœé€Î¥¢¥¯¥»¥¹€Î»î€ß€«€éŒ¡€Î»î€ß€Þ€Ç€ÎŽÖ€Î»þŽÖ€ò ÀßÄꀷ€Þ€¹¡£¥á¥Ã¥»¡Œ¥ž€ÎŽÖ³Ö€Ï¡¢¥á¥Ã¥»¡Œ¥ž€ò 1 ²óÁ÷¿®€¹€ë€¿€Ó€Ë¡¢ žœºß€ÎŽÖ³Ö€Ë 0 €«€é 1 €ÎŽÖ€ÎÍð¿ôÃÍ€òŸè€ž€¿€â€Î€Î 2 ÇÜ€ò¡¢žœºß€ÎŽÖ³Ö€Ë ²Ã€š€¿€â€Î€Ë€Ê€ê€Þ€¹¡£ €³€ÎÃÍ€¬ backoff-cutoff ÃÍ€è€êÂ瀭€¯€Ê€ë€È¡¢€³€Î»þŽÖ€¬ÀßÄꀵ€ì€Þ€¹¡£ ¥Ç¥Õ¥©¥ë¥ÈÃÍ€Ï 10 ÉÀǀ¹¡£

¥ê¡Œ¥¹Í×µá€È¥ê¥¯¥š¥¹¥È

DHCP ¥×¥í¥È¥³¥ë€Ç€Ï¡¢¥¯¥é¥€¥¢¥ó¥È€«€é¥µ¡Œ¥Ð€ËÂЀ·¡¢ÆÃÄê€ÎŸðÊó€òÁ÷€ë€è€Š Í׵့€¿€ê¡¢Œõ€±Æþ€ìœàÈ÷€Î€Ç€­€Æ€€€Ê€€ÂŸ€ÎŸðÊó€ÏÁ÷€é€Ê€€€è€Š€ËÍ׵့€¿€ê €Ç€­€Þ€¹¡£ €Þ€¿¡¢¥µ¡Œ¥Ð€«€é€ÎÄ󶡿œ€·œÐ€Ë¥¯¥é¥€¥¢¥ó¥È€ÎɬÍ׀Ȁ¹€ëŸðÊ󀬎ހހì€Ê€€ Ÿì¹ç€ä¡¢Ä󶡀µ€ì€¿ŸðÊ󀬜ŒÊ¬€Ç€Ê€€Ÿì¹ç¡¢¥¯¥é¥€¥¢¥ó¥È€¬Ä󶡿œ€·œÐ€ò µñÈÝ€¹€ë€³€È€â€Ç€­€Þ€¹¡£

DHCP ¥µ¡Œ¥Ð€¬ DHCP ¥¯¥é¥€¥¢¥ó¥È€ËÁ÷€ëÄ󶡿œ€·œÐ€ËŽÞ€Þ€ì€ë¥Ç¡Œ¥¿€Ë€Ï¡¢ €µ€Þ€¶€Þ€Ê€â€Î€¬€¢€ê€Þ€¹¡£ ÆÀËÍ×µá€Ç€­€ë¥Ç¡Œ¥¿€Ï DHCP ¥ª¥×¥·¥ç¥ó €ÈžÆ€Ð€ì€ë€â€Î€Ç€¹¡£ DHCP ¥ª¥×¥·¥ç¥ó€Ï
 dhcp-options(5) €ËÄêµÁ€µ€ì€Æ€€€Þ€¹¡£

request Êž

 request [ option ] [, ... option ];

request Êž€ò»ØÄꀹ€ë€³€È€Ç¡¢¥¯¥é¥€¥¢¥ó¥È€Ï¡¢¥µ¡Œ¥Ð€ËÂЀ·¡¢€œ€Î ¥¯¥é¥€¥¢¥ó¥È€Ë±þÅú€¹€ë€Ê€é€Ð¡¢»ØÄꀷ€¿¥ª¥×¥·¥ç¥ó€ÎÃÍ€òÁ÷€ë€è€Š Í׵္€ë€è€Š€Ë€Ê€ê€Þ€¹¡£ request Êž€Ë€Ï¥ª¥×¥·¥ç¥óÌŸ€À€±€ò»ØÄꀷ¡¢¥ª¥×¥·¥ç¥ó¥Ñ¥é¥á¡Œ¥¿€Ï»ØÄꀷ€Þ€»€ó¡£ ¥Ç¥Õ¥©¥ë¥È€Ç€Ï DHCP ¥¯¥é¥€¥¢¥ó¥È€Ï subnet-mask, broadcast-address, time-offset, routers, domain-name, domain-name-servers, host-name ¥ª¥×¥·¥ç¥ó€òÍ׵့€Þ€¹¡£

Ÿì¹ç€Ë€è€Ã€Æ€ÏÍ×µá¥ê¥¹¥È€òÁŽ€¯Á÷€é€Ê€€€³€È€¬ËŸ€Þ€·€€€³€È€â€¢€ê€Þ€¹¡£ €œ€Š€¹€ë€¿€á€Ë€Ï¡¢Ã±œã€Ë¥Ñ¥é¥á¡Œ¥¿€ò»ØÄꀷ€Ê€€ request Êž€òœñ€€€Æ²Œ€µ€€:

         request;
 

require Êž

 require [ option ] [, ... option ];

require Êž€Ë€Ï¡¢€¢€ëÄ󶡿œ€·œÐ€ò¥¯¥é¥€¥¢¥ó¥È€¬Œõ€±Æþ€ì€ë€¿€á€Ë ¥µ¡Œ¥Ð€¬Á÷€ë€Ù€­¥ª¥×¥·¥ç¥ó€òÎóµó€·€Þ€¹¡£ Îóµó€µ€ì€¿¥ª¥×¥·¥ç¥ó€¹€Ù€Æ€òŽÞ€Þ€Ê€€Ä󶡿œ€·œÐ€Ï̵»ë€µ€ì€Þ€¹¡£

send Êž

 send { [ option declaration ] [, ... option declaration ]}

send Êž€ò»ØÄꀹ€ë€³€È€Ç¡¢¥¯¥é¥€¥¢¥ó¥È€Ï¡¢ »ØÄꀷ€¿¥ª¥×¥·¥ç¥ó€ò»ØÄꀷ€¿Ã̀ǥµ¡Œ¥Ð€ËÁ÷¿®€¹€ë€è€Š€Ë€Ê€ê€Þ€¹¡£ €³€³€Ç»ØÄê€Ç€­€ë¥ª¥×¥·¥ç¥ó€Ï¡¢ dhcp-options(5) €ÇÀâÌÀ€µ€ì€Æ€€€ë¥ª¥×¥·¥ç¥óÀëžÀ€¹€Ù€Æ€Ç€¹¡£ DHCP ¥×¥í¥È¥³¥ë€ÇŸï€ËÁ÷€é€ì€ë¥ª¥×¥·¥ç¥ó€Ï €³€³€Ë»ØÄꀹ€ë€Ù€­€Ç€Ï€¢€ê€Þ€»€ó¡£Ã¢€·¡¢ requested-lease-time ¥ª¥×¥·¥ç¥ó€ò¥Ç¥Õ¥©¥ë¥È€Î¥ê¡Œ¥¹»þŽÖ (2 »þŽÖ) °Ê³°€ÎÃ̀ǻØÄꀹ€ë€³€È€Ï€Ç€­€Þ€¹¡£€³€ÎÊž€ò»È€ŠÂŸ€ÎŸì¹ç€È€·€ÆÌÀ€é€«€Ê €â€Î€Ï¡¢Œ«Ê¬€ÈỀΌïÎà€Î¥¯¥é¥€¥¢¥ó¥È€È€ò¶èỀǀ­€ë€è€Š€Ê ŸðÊó€ò¡¢¥µ¡Œ¥Ð€ËÂЀ·Á÷¿®€¹€ëŸì¹ç€Ç€¹¡£

ưŪ DNS

žœºß¡¢¥ê¡Œ¥¹€¬³ÍÆÀ€µ€ì€¿ºÝ€Ë DNS €Î¹¹¿·€ò¹Ô€Š€¿€á€Î¡¢ ÈóŸï€ËžÂÄêŪ€Ê¥µ¥Ý¡Œ¥È€¬¥¯¥é¥€¥¢¥ó¥È€Ë€¢€ê€Þ€¹¡£ €³€ì€Ï¥×¥í¥È¥¿¥€¥×Ū€Ê€â€Î€Ç€¢€ê¡¢ €ª€œ€é€¯€¢€Ê€¿€¬»×€Ã€Æ€€€ë€è€Š€Ë€ÏÆ°€­€Þ€»€ó¡£ €â€·¡¢€¢€Ê€¿€¬¶öÁ³€Ë€âŒ«Ê¬€Î€È€³€í€Î DNS ¥µ¡Œ¥Ð€ÎŽÉÍýŒÔ€Ç€¢€ë€È€€€Š€Ê€é¡¢ €œ€ÎŸì¹ç€ËžÂ€Ã€Æ€ÏÆ°€­€Þ€¹¡£€È€Æ€â€¢€ê€œ€Š€Ë€Ê€€€³€È€Ç€¹€¬¡£

€³€ì€òÆ°ºî€µ€»€ë€¿€á€Ë€Ï¡¢DHCP ¥µ¡Œ¥Ð€ÎÃæ€Ç ž°€È¥Ÿ¡Œ¥ó€òÀëžÀ€¹€ëɬÍ×€¬€¢€ê€Þ€¹ (ŸÜºÙ€Ï dhcpd.conf(5) €ò»²ŸÈ)¡£ €Þ€¿¡¢Œ¡€Î€è€Š€Ë¥¯¥é¥€¥¢¥ó¥È€Ç fqdn ¥ª¥×¥·¥ç¥ó€òÀßÄꀹ€ëɬÍ×€¬€¢€ê€Þ€¹:

   send fqdn.fqdn "grosse.fugue.com.";
   send fqdn.encoded on;
   send fqdn.server-update off;
 

fqdn.fqdn ¥ª¥×¥·¥ç¥ó€Ï ɬ€º Ž°ÁŽ€Ê¥É¥á¥€¥óÌŸ€Ç€Ê€±€ì€Ð€Ê€ê€Þ€»€ó¡£ ¹¹¿·€¹€ë¥Ÿ¡Œ¥ó€ËÂЀ¹€ë¥Ÿ¡Œ¥óÊž€ò ɬ€º ÄêµÁ€·€Ê€±€ì€Ð€Ê€ê€Þ€»€ó¡£ fqdn.encoded ¥ª¥×¥·¥ç¥ó€Ï¡¢»ÈÍÑ€·€Æ€€€ë DHCP ¥µ¡Œ¥Ð€Ë€è€Ã€Æ€Ï¡¢ on €« off €ËÀßÄꀹ€ëɬÍ×€¬€¢€ë€«€â€·€ì€Þ€»€ó¡£

no-client-updates Êž

 no-client-updates [ flag ] ;

DHCP ¥¯¥é¥€¥¢¥ó¥È€¬ÄŸÀÜ DNS €Î¹¹¿·€ò¹Ô€Š€è€ê€â¡¢ DHCP ¥¯¥é¥€¥¢¥ó¥È¥¹¥¯¥ê¥×¥È (dhclient-script(8) »²ŸÈ) €ÎÃæ€Ç DNS €Î¹¹¿·€ò¹Ô€€€¿€€Ÿì¹ç (Î〚€Ð¡¢DHCP ¥¯¥é¥€¥¢¥ó¥È€¬ÄŸÀÜ¥µ¥Ý¡Œ¥È€·€Æ€€€Ê€€ SIG(0) ǧŸÚ€ò»ÈÍÑ€·€¿€€Ÿì¹ç) €Ë€Ï¡¢no-client-updates Êž€ò»È€Ã€Æ¡¢¹¹¿·€ò¹Ô€ï€Ê€€€è€Š€Ë ¥¯¥é¥€¥¢¥ó¥È€Ë¶µ€š€ë€³€È€¬€Ç€­€Þ€¹¡£ DHCP ¥¯¥é¥€¥¢¥ó¥È€¬¹¹¿·€¹€ë€³€È€òËŸ€Þ€Ê€€Ÿì¹ç€Ï flag €ò true €Ë€·¡¢ ¹¹¿·€¹€ë€³€È€òËŸ€àŸì¹ç€Ï flag €ò false €Ë€¹€ë€³€È€Ë€Ê€ê€Þ€¹¡£ ¥Ç¥Õ¥©¥ë¥È€Ç€Ï DHCP ¥¯¥é¥€¥¢¥ó¥È€Ï DNS €Î¹¹¿·€ò¹Ô€€€Þ€¹¡£

¥ª¥×¥·¥ç¥óœ€Ÿþ»Ò

€œ€Î¥¯¥é¥€¥¢¥ó¥È€Ë€È€Ã€ÆŒÂºÝ€Ë€ÏŬÀڀǀʀ€ ¥ª¥×¥·¥ç¥ó¥Ç¡Œ¥¿€òŒõ€±Œè€Ã€¿€ê¡¢É¬Í׀ʟðÊó€òŒõ€±Œè€é€Ê€«€Ã€¿€ê €¹€ëŸì¹ç€Ç¡¢€«€Ä¡¢€œ€ì€é€ÎŸðÊó€ËÍøÍѲÄÇœ€Ê¥Ç¥Õ¥©¥ë¥È€ÎÃÍ€¬ ¥¯¥é¥€¥¢¥ó¥ÈŠ€Ëžºß€¹€ëŸì¹ç€¬€¢€ê€Þ€¹¡£ €Þ€¿¡¢ÍøÍѲÄÇœ€Ç€Ï€¢€ë€¬¥í¡Œ¥«¥ë€ÎŸðÊó€ÇÊ䀊ɬÍ׀΀¢€ëŸðÊó€ò ¥¯¥é¥€¥¢¥ó¥È€¬Œõ€±€È€ëŸì¹ç€â€¢€ê€Þ€¹¡£ €³€Š€€€ŠŸì¹ç€ò°·€Š€¿€á€Ë¡¢ €€€¯€Ä€«€Î¥ª¥×¥·¥ç¥óœ€Ÿþ»Ò€¬ÍøÍрǀ­€Þ€¹¡£

default Êž

 default [ option declaration ] ;

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reject Êž€Ë€è€ê¡¢DHCP ¥¯¥é¥€¥¢¥ó¥È€Ï»ØÄꀷ€¿¥¢¥É¥ì¥¹€ò¥µ¡Œ¥ÐŒ±Ê̻ҀȀ·€Æ»ÈÍÑ€¹€ë ¥µ¡Œ¥Ð€«€é€ÎÄ󶡿œ€·œÐ€òµñÈÝ€¹€ë€è€Š€Ë€Ê€ê€Þ€¹¡£Éžœà€Ëœàµò€·€Ê€€ dhcp ¥µ¡Œ¥Ð€äÀßÄê€òŽÖ°ã€š€Æ€€€ë dhcp ¥µ¡Œ¥Ð€Ë€è€Ã€Æ¥¯¥é¥€¥¢¥ó¥È€¬ÀßÄꀵ€ì€Ê€€ €è€Š€Ë€¹€ë€¿€á€Ë¡¢€³€ÎÊž€ò»ÈÍÑ€¹€ë€³€È€¬€Ç€­€Þ€¹¡£€·€«€·€Ê€¬€é¡¢€³€ì€Ï ºÇžå€ÎÉðŽï€È€¹€ë€Ù€­€Ç€¹¡£€³€ì€ËÀèΩ€Á¡¢Éå€Ã€¿ DHCP ¥µ¡Œ¥Ð€òÄÉ€€€«€±€Æ €œ€ì€òÄŸ€¹Êý€¬€è€€€Ç€¹¡£

 interface "name" { declarations ...  }

Ê£¿ô€Î¥Í¥Ã¥È¥ï¡Œ¥¯¥€¥ó¥¿¥Õ¥§¡Œ¥¹€ò»ý€Ä¥¯¥é¥€¥¢¥ó¥È€ÎŸì¹ç¡¢DHCP €Ç ÀßÄꀵ€ì€ë¥€¥ó¥¿¥Õ¥§¡Œ¥¹€Ë€è€Ã€Æ°Û€Ê€ëÆ°ºî€ò€µ€»€ëɬÍ×€¬€¢€ëŸì¹ç€¬ €¢€ê€Þ€¹¡£lease ÀëžÀ€È alias ÀëžÀ€òœü€¯€¹€Ù€Æ€Î¥¿¥€¥ß¥ó¥°¥Ñ¥é¥á¡Œ¥¿ €ÈÀëžÀ€ò¡¢interface ÀëžÀ€Ç°Ï€à€³€È€¬€Ç€­€Þ€¹¡£€œ€ÎŸì¹ç¡¢°Ï€Þ€ì€¿ ¥Ñ¥é¥á¡Œ¥¿€Ï»ØÄꀷ€¿ÌŸÁ°€Ë¹çÃ×€¹€ë¥€¥ó¥¿¥Õ¥§¡Œ¥¹€Ë€Î€ßŬÍÑ€µ€ì€Þ€¹¡£ interface ÀëžÀ€ò»ý€¿€Ê€€¥€¥ó¥¿¥Õ¥§¡Œ¥¹€Ï¡¢€¹€Ù€Æ€Î interface ÀëžÀ€Î ³°ÂŠ€ÇÀëžÀ€µ€ì€¿¥Ñ¥é¥á¡Œ¥¿¡¢€â€·€¯€Ï¥Ç¥Õ¥©¥ë¥È€ÎÀßÄꀬŬÍÑ€µ€ì€Þ€¹¡£

 pseudo "name" "real-name" { declarations ...  }

Ÿõ¶·€Ë€è€Ã€Æ€Ï²ŸÁÛ¥€¥ó¥¿¥Õ¥§¡Œ¥¹€òÀëžÀ€·¡¢ DHCP ¥¯¥é¥€¥¢¥ó¥È€¬€³€Î¥€¥ó¥¿¥Õ¥§¡Œ¥¹€Î€¿€á€ÎÀßÄê€òŒèÆÀ€¹€ë€è€Š€Ë€¹€ë€È ÊØÍø€Ë€Ê€êÆÀ€Þ€¹¡£ ÄÌŸï DHCP ¥¯¥é¥€¥¢¥ó¥È€¬¥µ¥Ý¡Œ¥È€·€Æ€€€ë³Æ¥€¥ó¥¿¥Õ¥§¡Œ¥¹€Ï¡¢ €œ€Î¥ê¡Œ¥¹€ò³ÍÆÀ€·ŽÉÍý€¹€ë€¿€á€Ë¡¢ DHCP ¥¯¥é¥€¥¢¥ó¥È€ÎŸõÂÖµ¡³£€òŒÂ¹Ô€·€Æ€€€Þ€¹¡£ ²ŸÁÛ¥€¥ó¥¿¥Õ¥§¡Œ¥¹€Ï¡¢real-name €ÈÌŸÉÕ€±€é€ì€¿¥€¥ó¥¿¥Õ¥§¡Œ¥¹Ÿå€Ç ²ÔƯ€·€Æ€€€ë¡¢€Þ€µ€·€¯€â€Š°ì€Ä€ÎŸõÂÖµ¡³£€Ç€¹¡£ €³€Îµ¡Çœ€ò»ÈÍÑ€¹€ëŸì¹ç¡¢ ²ŸÁÛ¥€¥ó¥¿¥Õ¥§¡Œ¥¹€ÈŒÂºÝ€Î¥€¥ó¥¿¥Õ¥§¡Œ¥¹€ÎΟÊý€ËÂЀ·€Æ ¥¯¥é¥€¥¢¥ó¥ÈŒ±Ê̻ҀòÄ󶡀·€Ê€±€ì€Ð€Ê€ê€Þ€»€ó¡£ €Þ€¿¡¢»ÈÍÑ€·€¿€€ IP ¥¢¥É¥ì¥¹€ËÂЀ¹€ë²ŸÁÛ¥€¥ó¥¿¥Õ¥§¡Œ¥¹ÍÑ€Ë Ê¬Î¥€µ€ì€¿¥¯¥é¥€¥¢¥ó¥È¥¹¥¯¥ê¥×¥È€òÄ󶡀·€Ê€±€ì€Ð€Ê€ê€Þ€»€ó¡£ Î〚€ÐŒ¡€Î€è€Š€Ë€Ê€ê€Þ€¹:

         interface "ep0" {
                 send dhcp-client-identifier "my-client-ep0";
         }
         pseudo "secondary" "ep0" {
                 send dhcp-client-identifier "my-client-ep0-secondary";
                 script "/etc/dhclient-secondary";
         }
 

²ŸÁÛ¥€¥ó¥¿¥Õ¥§¡Œ¥¹€Î€¿€á€Î¥¯¥é¥€¥¢¥ó¥È¥¹¥¯¥ê¥×¥È€Ï ¥€¥ó¥¿¥Õ¥§¡Œ¥¹€òÍ­žú€Ë€·€¿€ê̵žú€Ë€·€¿€ê€¹€ëÀßÄê€ò€¹€ë€Ù€­€Ç€Ï€¢€ê€Þ€»€ó¡£ ÆÀˡ¢¥ê¡Œ¥¹€Î³ÍÆÀ€ä¹¹¿·€ÎŸõÂÖ¡¢€œ€·€Æ¥ê¡Œ¥¹€ÎŽüžÂÀÚ€ì€ÎŸõÂÖ€ò Œè€ê°·€Š€¿€á€Ë€Ï¡¢€œ€Î€³€È€¬É¬Í׀ǀ¹¡£ ŸÜºÙ€Ï dhclient-script(8) €ò»²ŸÈ€·€Æ²Œ€µ€€¡£

 media "media setup" [ , "media setup", ... ];

media Êž€Ï¡¢IP ¥¢¥É¥ì¥¹ŒèÆÀÃæ€Ë»ÈÍÑ€¬»î€ß€é€ì€ë¡¢¥á¥Ç¥£¥¢ÀßÄê¥Ñ¥é¥á¡Œ¥¿€ò 1 €Ä °ÊŸåÄêµÁ€·€Þ€¹¡£dhcp ¥¯¥é¥€¥¢¥ó¥È€Ï¡¢¥ê¥¹¥ÈÃæ€Î³Æ media setup Êž»úÎó€ò œçŒ¡»ÈÍÑ€·¡¢€¢€ë¥€¥ó¥¿¥Õ¥§¡Œ¥¹€ò€œ€ì€ÇÀßÄꀷ¡¢¥Ö¡Œ¥È€ò»î€ß€Þ€¹¡£ ÂÌÌ܀ʀé€ÐŒ¡€Î media setup Êž»úÎó€ò»ÈÍÑ€·€Þ€¹¡£€³€ÎÊž€Ï¡¢ ¥á¥Ç¥£¥¢¥¿¥€¥×€òž¡œÐ€¹€ëÇœÎÏ€ò»ý€¿€Ê€€¥Í¥Ã¥È¥ï¡Œ¥¯¥€¥ó¥¿¥Õ¥§¡Œ¥¹€Ë ÂЀ·€ÆÍøÍрǀ­€Þ€¹¡£¥µ¡Œ¥Ð€Ø€Î¥ê¥¯¥š¥¹¥È€¬€Ç€­±þÅú€¬ÆÀ€é€ì€ë€â€Î €Ê€é€Ð¡¢€É€Î€è€Š€Ê¥á¥Ç¥£¥¢¥¿¥€¥×€Ç€â€¿€Ö€óÀµÅö€Ç€¹ (Êݟڀπ·€Þ€»€ó€¬)¡£

media setup €Ï¥¢¥É¥ì¥¹ŒèÆÀ€ÎœéŽü¥Õ¥§¡Œ¥º (DHCPDISCOVER ¥Ñ¥±¥Ã¥È€È DHCPOFFER ¥Ñ¥±¥Ã¥È)€Ç€Î€ß»ÈÍÑ€µ€ì€Þ€¹¡£€Ò€È€¿€Ó¥¢¥É¥ì¥¹€¬ŒèÆÀ€µ€ì€ë€È¡¢ dhcp ¥¯¥é¥€¥¢¥ó¥È€Ï€œ€Î¥¢¥É¥ì¥¹€ò¥ê¡Œ¥¹¥Ç¡Œ¥¿¥Ù¡Œ¥¹€Ëµ­Ï¿€·¡¢ €œ€Î¥¢¥É¥ì¥¹€òÆÀ€ëºÝ€ËÍÑ€€€¿¥á¥Ç¥£¥¢¥¿¥€¥×€òµ­Ï¿€·€Þ€¹¡£¥¯¥é¥€¥¢¥ó¥È€¬ ¥ê¡Œ¥¹€ò¹¹¿·€·€è€Š€È€¹€ëºÝ€Ë€ÏŸï€Ë¡¢€œ€ì€ÈƱ€ž¥á¥Ç¥£¥¢¥¿¥€¥×€ò»ÈÍÑ€·€Þ€¹¡£ ¥ê¡Œ¥¹€òŽüžÂÀÚ€ì€Ë€·€Æ€Ï€ž€á€Æ¡¢¥¯¥é¥€¥¢¥ó¥È€Ï¥á¥Ç¥£¥¢¥¿¥€¥×€òœç€Ë»î€¹ ŸõÂÖ€ËÌá€ê€Þ€¹¡£

»ÈÍÑÎã

°Ê²Œ€ÎÀßÄê¥Õ¥¡¥€¥ë€Ï¡¢NetBSD 1.3 €òŒÂ¹Ô€¹€ë€¢€ë¥é¥Ã¥×¥È¥Ã¥×¥Þ¥·¥ó€Ç »ÈÍÑ€µ€ì€Æ€€€ë€â€Î€Ç€¹¡£€³€Î¥Þ¥·¥ó€Ï¡¢IP ¥š¥€¥ê¥¢¥¹€È€·€Æ 192.5.5.213¡¢ ¥€¥ó¥¿¥Õ¥§¡Œ¥¹ ep0 (3Com 3C589C) €ò€Ò€È€Ä»ý€Ã€Æ€€€Þ€¹¡£€³€Î¥¯¥é¥€¥¢¥ó¥È €Ï¡¢DHCP ³èÆ°€¬€Û€È€ó€É€Ê€€¥Í¥Ã¥È¥ï¡Œ¥¯€Ç»þŽÖ€ÎÂçÉôʬ€òŸÃÈñ€¹€ë€³€È€¬ €ï€«€Ã€Æ€€€ë€Î€Ç¡¢¥Ö¡Œ¥ÈŽÖ³Ö€Ï¥Ç¥Õ¥©¥ë¥ÈÃÍ€«€é€€€¯€Ö€óŸ®€µ€¯€·€Æ €¢€ê€Þ€¹¡£€³€Î¥Þ¥·¥ó€ÏÊ£¿ô¥Í¥Ã¥È¥ï¡Œ¥¯ŽÖ€Ç¥í¡Œ¥ß¥ó¥° (°ÜÆ°) €·€Þ€¹¡£

 
 timeout 60;
 retry 60;
 reboot 10;
 select-timeout 5;
 initial-interval 2;
 reject 192.33.137.209;
 
 interface "ep0" {
     send host-name "andare.fugue.com";
     send dhcp-client-identifier 1:0:a0:24:ab:fb:9c;
     send dhcp-lease-time 3600;
     supersede domain-name "fugue.com rc.vix.com home.vix.com";
     prepend domain-name-servers 127.0.0.1;
     request subnet-mask, broadcast-address, time-offset, routers,
             domain-name, domain-name-servers, host-name;
     require subnet-mask, domain-name-servers;
     script "CLIENTBINDIR/dhclient-script";
     media "media 10baseT/UTP", "media 10base2/BNC";
 }
 
 alias {
   interface "ep0";
   fixed-address 192.5.5.213;
   option subnet-mask 255.255.255.255;
 }
 

€³€ì€Ï dhclient.conf ¥Õ¥¡¥€¥ë€È€·€Æ€ÏÈóŸï€ËÊ£»š€Ê€â€Î€Ç€¹¡£°ìÈ̀ˡ¢ ³§€µ€ó€¬»ÈÍÑ€¹€ë€â€Î€Ï€Ï€ë€«€ËŽÊñ€Ê€Ï€º€Ç€¹¡£Â¿€¯€ÎŸì¹ç¡¢dhclient.conf ¥Õ¥¡¥€¥ë€È€·€Æ¶õ€Î¥Õ¥¡¥€¥ë€òÀžÀ®€¹€ë€À€±€ÇœœÊ¬€Ê€Ï€º€Ç€¹¡£ €Ä€Þ€ê¡¢¥Ç¥Õ¥©¥ë¥ÈÃ̀ǀ耀€Î€¬ÉáÄ̀ǀ¹¡£

ŽØÏ¢¹àÌÜ

dhcp-options(5), dhclient.leases(5), dhclient(8), RFC2132, RFC2131

ºîŒÔ

dhclient(8) €Ï Vixie Labs €È€Î·ÀÌó€Î€â€È€Ç Ted Lemon €¬œñ€­€Þ€·€¿¡£ ËÜ¥×¥í¥ž¥§¥¯¥È€ÎŽð¶â€Ï Internet Systems Consortium €¬Ä󶡀·€Þ€·€¿¡£ Internet Systems Consortium €ËŽØ€¹€ëŸðÊó€Ï¡¢ https://www.isc.org €Ë€¢€ê€Þ€¹¡£