centos7 network configuration

1. Configure static ip

Edit  the vi  /etc/sysconfig/network-scripts/ifcfg-enp0s3 file (other files are also acceptable) , and configure the following parameters ( red is new items , others are modified items )

BOOTPROTO= static   #Indicates obtaining static ip
IPADDR=192.168.1.199 #Assigned static ip
NETMASK=255.255.255.0 #Subnet mask
GATEWAY=172.16.0.254
#Gateway DNS=159.226.39.1 # DNS

ONBOOT= yes   #The system will open the interface at startup

 

After configuration

[java]  view plain copy  

 

 

1. TYPE=Ethernet  
2. BOOTPROTO=static  
3. IPADDR=172.16.25.3  
4. NETMASK=255.255.0.0  
5. GATEWAY=172.16.0.254  
6. DNS=159.226.39.1  
7. DEFROUTE = yes  
8. PEERDNS=yes  
9. PEERROUTES=yes  
10. IPV4_FAILURE_FATAL=no  
11. IPV6INIT=yes  
12. IPV6_AUTOCONF=yes  
13. IPV6_DEFROUTE = yes  
14. IPV6_PEERDNS=yes  
15. IPV6_PEERROUTES=yes  
16. IPV6_FAILURE_FATAL=no  
17. NAME=enp1s0f0  
18. UUID=8b9786a7-7959-4c4b-bfc3-644db984d702  
19. DEVICE=enp1s0f0  
20. ONBOOT=yes    

Only configure ONBOOT=yes to ssh remote access.

Save the changes and restart the network service with the following command:

service network restart

 

2. Modify dns

Manually modify  /etc/resolv.conf

# systemctl restart NetworkManager.service

§ Manually modify vim   /etc/resolv.conf

Add the following code:

  nameserver 114.114.114.114

 

  nameserver 8.8.8.8