How to set ip in centos7

How to configure the IP address in CentOS 7: 1. Edit the network configuration file; 2. Set the IP address and network mask; 3. Set the gateway (optional); 4. Enable network services; 5. Verify IP address.

How to configure an IP address in CentOS 7

To configure an IP address in CentOS 7, follow these steps:

1. Edit the network configuration file

<code class="shell">vi /etc/sysconfig/network-scripts/ifcfg-eth0</code>

2. Set the IP address and network mask

<code>IPADDR=192.168.0.20
NETMASK=255.255.255.0</code>

3. Set the gateway (optional)

If you need to access through the gateway For other networks, please set up the gateway:

<code>GATEWAY=192.168.0.1</code>

4. Enable network services

<code>systemctl start network</code>

5. Verify IP address

To verify that the IP address has been configured correctly, run the following command :

<code class="shell">ifconfig eth0</code>

You should see the following output:

<code>eth0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500
        inet 192.168.0.20  netmask 255.255.255.0  broadcast 192.168.0.255
        inet6 fe80::20c:29ff:fe4f:f2b2  prefixlen 64  scopeid 0x20<link>
        ether 00:0c:29:4f:f2:b2  txqueuelen 1000  (Ethernet)
        RX packets 321  bytes 31134 (30.2 KiB)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 292  bytes 31329 (30.5 KiB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0</code>

where inet 192.168.0.20 represents the assigned IP address.

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