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nameserver DNSserver_ip_address1
nameserver
DNSserver_ip_address2
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[root@REDHATAS5 /]# cat /etc/resolv.conf
nameserver 192.168.88.1
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[root@Develop-Server ~]# nslookup www.baidu.com
Server: 192.168.88.1
Address: 192.168.88.1#53
Non-authoritative answer:
www.baidu.com canonical name = www.a.shifen.com.
Name: www.a.shifen.com
Address: 119.75.217.56
Name: www.a.shifen.com
Address: 119.75.218.45
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