CentOS中的"resolv.conf"檔案被重置的解決方案

作業系統：CentOS Linux release 7.8

實戰任務：當配置resolv檔案之後，如果重新開機了CentOS作業系統或者重新開機了網絡服務，将在resolv檔案中丁丁配置的将會丢失，下面将列出了解決此問題的操作步驟。

[root@localhost network-scripts]# vi /etc/resolv.conf 

# Generated by NetworkManager

nameserver 220.248.192.12

nameserver 220.248.192.13

nameserver 8.8.8.8

[root@localhost network-scripts]# cat /etc/resolv.conf 

[root@localhost network-scripts]# ping 8.8.8.8

PING 8.8.8.8 (8.8.8.8) 56(84) bytes of data.

64 bytes from 8.8.8.8: icmp_seq=1 ttl=111 time=346 ms

64 bytes from 8.8.8.8: icmp_seq=2 ttl=111 time=349 ms

64 bytes from 8.8.8.8: icmp_seq=3 ttl=111 time=346 ms

[root@localhost network-scripts]# systemctl restart network

[root@localhost network-scripts]# pwd

/etc/sysconfig/network-scripts

[root@localhost network-scripts]# vi ifcfg-eth0 

......

DNS1=220.248.192.12

DNS2=220.248.192.13

DNS3=8.8.8.8

[root@localhost network-scripts]#systemctl restart  network

[root@localhost ~]# cat  /etc/resolv.conf