Solve the problem that CentOS 7 can't surf the internet

Newly installed CentOS 7 cannot be on the net

But you can ping the IP address of the same network segment

Modify the/etc/sysconfig/network-scripts/ifcfg-enp0s3 file as follows

Vim/etc/sysconfig/network-scripts/ifcfg-enp0s3

Type=ethernet
bootproto=static
defroute=yes
ipv4_failure_fatal=no
ipv6init=yes
ipv6_ Autoconf=yes
ipv6_defroute=yes
ipv6_failure_fatal=no
name=enp0s3
uuid= 1538D24B-770F-44EE-83AF-E1DA305DFABC
device=enp0s3
onboot=yes
ipaddr0=192.168.1.121
PREFIX=
ipv6_peerdns=yes
ipv6_peerroutes=yes
ipv6_privacy=no
dns1=202.96.134.133
dns2= 202.96.128.166
gateway0=192.168.1.1

Restart Network Services

Service  

Problem solving