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Last active September 15, 2022 11:02
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Setup static IP on Ubuntu
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ubuntu_static_ip.md

for permanent static IP: https://linuxize.com/post/how-to-configure-static-ip-address-on-ubuntu-20-04/

For Temporary:

Step 1: Check network Port

First of all, open Terminal. Enter “ip addr show” command to see the available network adapter whom you want to change the IP address and press execute.

ip addr show

Step 2: Set Static IP

Use sudo ifconfig eth0 X.X.X.X netmask 255.255.255.0 command to change the IP address. You can verify by using “ip addr show” command.

Step 3: Setup DNS

Change DNS Resolver in /etc/resolv.conf first backup // Remove old configs -- better backup it with mv /etc/resolv.conf /etc/resolv.orig

sudo rm /etc/resolv.conf

to gain the root privileges. run

sudo bash

then run sudo echo "nameserver 8.8.8.8" > /etc/resolv.conf where 8.8.8.8 is the address of DNS server.

Step 4: set the Gateway IP

sudo route add default gw X.X.X.X network_device_name

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