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Private IP addresshttps://linuxhandbook.com/find-ip-address/

hostname -I

nmcli -p device show


Public IP addresshttps://www.tutorialspoint.com/find-my-public-ip-address-from-linux-command-line


Centos config file
dhcp

sudo more /etc/sysconfig/network-scripts/ifcfg-ens18


Code Block
titledhcp
sudo vi /etc/sysconfig/network-scripts/ifcfg-ens18

BOOTPROTO=dhcp
DEFROUTE=yes
DEVICE=ens18
DHCPV6C=no
MTU=1500
NM_CONTROLLED=yes
ONBOOT=yes
PEERDNS=yes
TYPE=Ethernet
USERCTL=no


static

sudo more /etc/sysconfig/network-scripts/ifcfg-ens18


Code Block
titlestatic IP address
sudo vi /etc/sysconfig/network-scripts/ifcfg-ens18




UbuntuConfig file
netpla
vi /etc/netplan/xx--installer-config.yaml
!!! all the files in the list will be used

osboxes@osboxes:/etc/netplan$ more 10-installer-config.yaml
# This is the network config written by 'subiquity'
network:
ethernets:
ens33:
dhcp4: true
ens34:
dhcp4: true
version: 2



sudo netplan apply
sudo netplan get   ( get the config information )

ip addr
DHCP
/etc/network/interfaces
auto eth1
  iface eth1 inet dhcp

sudo systemctl restart networking
Static




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