Manual ip addressing – nmcli

Phase 1: Information Gathering

Before changing anything, you need to know your current environment.

Goal	Command	What to look for
Find Interface Name	nmcli dev	Look for eth0, enp0s3, etc.
Find Current Profile	nmcli con show	The name in the NAME column.
Get IP/Gateway/DNS	nmcli dev show <interface>	IP4.ADDRESS, IP4.GATEWAY, IP4.DNS

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Phase 2: The Implementation

If you want to rename the connection and set the static IP in a clean, two-step process, use these commands (replace bracketed text with your actual info):

1. Rename the connection (Optional):

sudo nmcli connection modify "Old Name" connection.id "NewName"

2. Set Static IP, Gateway, and DNS:

Bash

sudo nmcli con mod "NewName" \
ipv4.addresses 192.168.1.100/24 \
ipv4.gateway 192.168.1.1 \
ipv4.dns "8.8.8.8 1.1.1.1" \
ipv4.method manual

3. Apply the changes:

Bash

sudo nmcli con up "NewName"