/etc/resolv.conf File modification lost solution in Ubuntu

Method One

1. Need to create a file/etc/resolvconf/resolv.conf.d/tail

sudo vi/etc/resolvconf/resolv.conf.d/tail

2. Write the DNS server you need in the file in the same format as/etc/resolv.conf

NameServer 8.8. 8.8

3. Restart the RESOLVCONF program

sudo/etc/init.d/resolvconf restart

Then look at the/etc/resolv.conf file and you can see that the DNS server you added is already in the file

Method Two

In the/etc/network/interfaces

2. # # #interfaces中 #######
4. Auto Eth0
6. Iface eth0 inet static
8. Address 192.168. 3.250
10. Netmask 255.255. 255.0 #子网掩码
12. Gateway 192.168. 3.1 #网关
14. Dns-nameservers 8.8. 8.8 8.8. 4.4 #设置dns服务器

/etc/resolv.conf file modification in Ubuntu missing solution