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14.1. ÔËÐ춱ð
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14.2. TCP »áÈƳÌÐò
Ðí¶à UNIX ϵͳ¹ÜÀíÔ±¶ÔʹÓà TCP »áÈƳÌÐòÀ´¹ÜÀí¶ÔijЩÍøÂç·þÎñµÄʹÓñȽÏÊìϤ¡£ÓÉ xinetd £¨ÒÔ¼°ÈκδøÓÐÄÚ½¨ libwrap Ö§³ÖµÄ³ÌÐò£©¹ÜÀíµÄ·þÎñÄܹ»Ê¹Óà TCP »áÈƳÌÐòÀ´¹ÜÀíʹÓÃȨ¡£ xinetd Äܹ»Ê¹Óà /etc/hosts.allow ºÍ /etc/hosts.deny ÎļþÀ´ÅäÖõ½ÏµÍ³·þÎñµÄʹÓá£ÈçÎļþµÄÃû³ÆËù°µÊ¾£¬ hosts.allow °üº¬Ò»¸öÔÊÐí¿Í»§Ê¹Óñ» xinetd Ëù¿ØÖƵÄÍøÂç·þÎñµÄ¹æÔòÁÐ±í£¬ hosts.deny Îļþ°üº¬¾Ü¾øʹÓÃȨµÄ¹æÔò¡£ hosts.allow ÎļþÓÅÏÈÓÚ hosts.deny Îļþ¡£¶ÔʹÓÃȨÏÞµÄÊÚÓè»ò¾Ü¾ø¿ÉÒÔ¸ù¾Ý¸ö±ð IP µØÖ·£¨»òÖ÷»úÃû£©»òÒ»Àà¿Í»§¶ø¶¨¡£ÏêÇéÇë²ÎÔÄ ¡¶Red Hat Linux ²Î¿¼Ö¸ÄÏ¡· ºÍ hosts_access µÄ˵Ã÷Ê飨man£©Ò³µÚÎåÕ£¨ man 5 hosts_access £©¡£

14.2.1. xinetd
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14.3. ·þÎñÅäÖù¤¾ß
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    14.4. ntsysv
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    14.5. chkconfig
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    chkconfig --level 345 nscd off
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