Implementation of IP address configuration in Centos7.5

Implementation of IP address configuration in Centos7.5

1. Before configuring the IP address, first use ifconfig to view the network card information and obtain the name of the network card

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2. Enter the network card configuration directory

cd /etc/sysconfig/network-scripts/, find the configuration file ifcfg-em2

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3. Modify ifcfg-em2 as follows:

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TYPE="Ethernet" # Network type, no need to change, the default is Ethernet, meaning Ethernet PROXY_METHOD="none" # Proxy mode: closed BROWSER_ONLY="no" # Just browser: no BOOTPROTO="none" # Boot protocol for network card: DHCP [Chinese name: Dynamic Host Configuration Protocol]
DEFROUTE="yes" # Default route: yesIPV4_FAILURE_FATAL="yes" # Disable IPV4 fatal error detection: noIPV6INIT="yes" # Whether IPV6 is automatically initialized: yesIPV6_AUTOCONF="yes" # Whether IPV6 is automatically configured: yesIPV6_DEFROUTE="yes" # Can IPV6 be the default route: yesIPV6_FAILURE_FATAL="no" # Disable IPV6 fatal error detection: noIPV6_ADDR_GEN_MODE="stable-privacy" # IPV6 address generation model: stable-privacy
NAME="em2" # Network card physical device name UUID="b9cf0ca7-ddc9-4c55-9cea-ce04919f6514" # Universal unique identifier, each network card will have, can not be repeated, otherwise two Linux only one network card can be used DEVICE="em2" # Network card device name, must be the same as the `NAME` value ONBOOT="yes" # Whether to start the network card at boot, if you want the network card to start at boot or control the network card through `systemctl restart network` IPADDR="172.20.41.96" # IP address PREFIX="24" # Configure subnet mask GATEWAY="172.20.41.65" # Gateway DNS1="202.96.209.133" # DNS
IPV6_PRIVACY="no"

4. Restart the network card after the modification is completed

systemctl restart network

The above is the full content of this article. I hope it will be helpful for everyone’s study. I also hope that everyone will support 123WORDPRESS.COM.

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