001、问题
root@PC1:/home/test3# ping www.baidu.com ping: www.baidu.com: Temporary failure in name resolution
002、解决方法(修改DNS服务配置文件）
vim /etc/resolv.conf ## 在该配置文件末尾曾家两行，保存退出 nameserver 127.0.0.53 options edns0 trust-ad search localdomain nameserver 1.1.1.1 nameserver 8.8.8.8 ~ :wq!
003、测试
- root@PC1:/home/test# ping -c 3 www.baidu.com PING www.a.shifen.com (110.242.68.3) 56(84) bytes of data. 64 bytes from 110.242.68.3 (110.242.68.3): icmp_seq=1 ttl=128 time=12.0 ms 64 bytes from 110.242.68.3 (110.242.68.3): icmp_seq=2 ttl=128 time=14.4 ms 64 bytes from 110.242.68.3 (110.242.68.3): icmp_seq=3 ttl=128 time=13.9 ms --- www.a.shifen.com ping statistics --- 3 packets transmitted, 3 received, 0% packet loss, time 2004ms rtt min/avg/max/mdev = 11.984/13.417/14.398/1.036 ms
