When CentOS is installed, the reboot displays the following screen:
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Log in to the system with the root user:
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The command to view IP is ifconfig, or IP add
When you enter a command you can see
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Input ifconfig display only Lo,lo is the loopback address, and the input IP add will display two, respectively, is the lo and Eth0,eth0 is the network card, just after the system is installed, there is no IP, if you want to obtain IP input dhclient command, And then view it with the Ifconfig command
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Enter insert mode after entering I,
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Change the BOOTPROTO=DHCP in the configuration file to Bootproto=static
Then add ipaddr=192.168.1.107 (the IP assigned to this computer)
netmask=255.255.255.0 (Subnet mask)
gateway=192.168.1.1 (Gateway)
dns1=8.8.8.8 (DNS server)
Then ESC, then shift+; enter Wq, save exit
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Commands can be netstat-r to see the default route inside, pointing to the gateway.
or command route-n to know what the gateway is.
The method of acquiring IP in Linux and manually setting the solid state IP.