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root@xuanfei-desktop:~#vim /etc/resolv.conf
nameserver ip //ÌîÉÏÄãµ±µØÊ¹ÓõÄ×î¿ìDNS·þÎñÆ÷IPµØÖ·
nameserver ip   
 
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root@xuanfei-desktop:~# cp /etc/resolv.conf /etc/resolv.conf.bak
root@xuanfei-desktop:~# vim /etc/dhcp3/dhclient.conf prepend domain-name-servers 202.96.128.86 192.168.10.11;//ÏȽ«¸ÃÐÐ×¢ÊÍÈ¥µô£¬È»ºóÌîÉÏ×Ô¼ºÏëÓõ½µÄDNS·þÎñÆ÷IP  
»¹ÓÐÁíÍâÒ»ÖÖ·½·¨¾ÍÊǸøDNSÅäÖÃÎļþ¼ÏËø£ºroot@xuanfei-desktop:~# chattr +i /etc/resolv.conf //¼ÓËöroot@xuanfei-desktop:~# lsattr /etc/resolv.conf //²é¿´¼ÓËøÊÇ·ñ³É¹¦ ÓÐi±íʾ³É¹¦
----i------------- /etc/resolv.conf
 
ÖØÐÂ×Ô¶¯»ñÈ¡IPÒ»´Îroot@xuanfei-desktop:~# dhclient //×Ô¶¯»ñÈ¡ipÃüÁîroot@xuanfei-desktop:~# cat /etc/resolv.conf //²é¿´µ±Ç°Ê¹ÓÃDNSµÄipsearch localdomain
nameserver 202.96.128.86
nameserver 192.168.10.11
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