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nmcli
First, type “nmcli d” command in your terminal for quick list ethernet card installed on your machine:
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“nmcli d” command output
Type “nmtui” command in your terminal to open Network manager. After opening Network manager chose “Edit connection” and press Enter (Use TAB button for choosing options).
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CentOS_7 Network manager screen
Now choose you network interfaces and click “Edit”
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Edit your network interfaces
DHCP configuration
Choose “Automatic” in IPv4 CONFIGURATION and check Automatically connect check box and press OK and quit from Network manager.
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Set ip adress using DHCP
Reset network services:
Now your server will get IP Address from DHCP .
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CentOS 7 check ip address
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