Set a static IP address
Having a static ip could be useful for headless servers for example. I personally use NetworkManager to handle my connections, so this post will mainly focus on this program, but in case you want to use systemd-networkd for the same purpose, please check How to switch from Network Manager to systemd-networkd, since there is also an example on how to do the same as here.
Let’s proceed by checking the status of our service:
$ sudo systemctl status NetworkManager
● NetworkManager.service - Network Manager Loaded: loaded (/usr/lib/systemd/system/NetworkManager.service; enabled; vendor preset: disabled) Drop-In: /usr/lib/systemd/system/NetworkManager.service.d └─NetworkManager-ovs.conf Active: active (running) since Wed 2021-12-29 11:06:29 CET; 5h 13min ago Docs: man:NetworkManager(8) Main PID: 534 (NetworkManager) Tasks: 3 (limit: 38135) Memory: 15.3M CPU: 1.353s CGroup: /system.slice/NetworkManager.service └─534 /usr/bin/NetworkManager --no-daemon
- If you are interested in Linux services, check this other post on how to handle Linux services in a basic way.
Check current ip address
We have already done this here, but in summary:
$ hostname -i
Check current connection
Let’s have a look at our active connections:
$ nmcli connection show
And its output:
NAME UUID TYPE DEVICE wired fa19249d-d349-37ca-b115-b6a7b4fb8639 ethernet enp3s0 wireless 855ecace-1f68-46f3-99eb-c18dd26d4636 wifi --
We are going to configure ALL the involved part of our network connection.
$ nmcli con modify fa19249d-d349-37ca-b115-b6a7b4fb8639 ipv4.addresses 192.168.1.25/24
$ sudo nmcli con modify fa19249d-d349-37ca-b115-b6a7b4fb8639 ipv4.gateway 192.168.1.1
$ sudo nmcli con modify fa19249d-d349-37ca-b115-b6a7b4fb8639 ipv4.dns "192.168.1.1"
$ sudo nmcli con modify fa19249d-d349-37ca-b115-b6a7b4fb8639 ipv4.method manual
$ sudo nmcli connection up fa19249d-d349-37ca-b115-b6a7b4fb8639
A configuration file has been generated after we set up everything, and could be checked here:
$ sudo cat /etc/NetworkManager/system-connections/wired.nmconnection
[connection] id=wired uuid=fa19249d-d349-37ca-b115-b6a7b4fb8639 type=ethernet autoconnect-priority=-999 interface-name=enp3s0 permissions= timestamp=1640800022 [ethernet] mac-address-blacklist= [ipv4] address1=192.168.1.25/24,192.168.1.1 dns=192.168.1.1; dns-search= method=manual [ipv6] addr-gen-mode=eui64 dns-search= method=ignore [proxy]
- Network Manager Arch Linux Wiki
- How to Configure Network Connection Using ‘nmcli’ Tool
- Configure static IP on arch linux
- Connect to a Network using ‘nmcli’