How to connect to the Internet in Linux

How to connect to the Internet in Linux?

Log in to the Linux system. First use the root account and password to log in to the Linux interface (note: must be an administrator user or authority). If another user logs in, use the su command to switch users and enter the password. The result is as shown below:

Recommended : "Linux Tutorial"

Modify the Linux ip address. Use the command vi /etc/sysconfig/network-scripts/ifcfg-eth0 to first change the Linux system IP address to the network segment allowed by the router or network switch. Add a command DNS = 8.8.8.8. After the modification is completed, press the Esc key on the keyboard. , enter wq to save and exit, as shown in the following figure:

Verify whether Linux is connected to the Internet. Use the ping command to directly ping a website. If the host cannot be identified, it means that it is not connected to the Internet. Here we take ping Baidu as an example. The result is as shown in the figure below, which means that it is not connected to the Internet:

##Linux networking. Command vi /etc/resolv.conf, write nameserver 8.8.8.8 in the opened text, the result is as shown in the figure:

Restart the network card: use the command: service network restart, the result is as shown below:

Verification. Use the ping Baidu command to check whether there is a reply. If there is a reply, it means the connection is successful. The result is as shown in the figure below:

Command summary:

su: Switch management User;

vi: Edit configuration text;

/etc/sysconfig/network-scripts/ifcfg-eth0: Path to the Linux network card configuration file;

DNS = 8.8. 8.8: Configure the IP address of the DNS server;

/etc/resolv.conf: DNS server configuration file path;

nameserver 8.8.8.8: Set the DNS server IP.

Notes

The set IP must be able to connect to the external network, that is, it can pass through switching devices such as routers

After the configuration is completed, some systems do not take effect and the network card service needs to be restarted

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