Connect to WiFi in Ubuntu!
 |
| Source: freepik |
In this tutorial, you will learn how to connect to a wireless network from Ubuntu terminal. This is especially helpful if you do not have regular access to Ubuntu Server
Step 1: Identify the name of your wireless network interface
There are several ways to identify the name of your network interface. You can check the IP command, the notified ipconfig command or this file:
ls /sys/class/net
It gives you all the available networking interfaces (Ethernet, WiFi and loopback).
pgamer@techwhiles:~$ ls /sys/class/net
eth0 lo wlan0
Step 2: Edit the NetPlan configuration file with the details of the WiFi interface
The NetPlan configuration file is in the / etc / NetPlan directory. If you check the contents of this directory, you will need to view the files as 01-Network-Manager-All.ML or 50-Cloud-3ML.
If this is an Ubuntu server, you should have a cloud-in file. For desktops, this should be a network-manager file.
Network Manager on the Linux desktop lets you choose a wireless network. You can be difficulties that codes and the wifi access point in that's configuration. This helps you in some cases (such as suspension) where the connection goes down automatically.
Whatever the file is, open it for editing. I hope you are somewhat familiar with Nano Editor, because Ubuntu comes pre-installed with it.
sudo nano /etc/netplan/50-cloud-init.yaml
YAML files are very sensitive about space, indentation and alignment. Use 4 (or 2, which is already used in YAML files) spaces instead of tabs where you see indentations.
Generally, you need to added the following steps to the access point name (SSID) or it's passwords (commonly):
wifis:
wlan0:
dhcp4: true
optional: true
access-points:
"SSID_name":
password: "WiFi_password"
Again, keep the alignment as I have shown otherwise the YAML file will not be analyzed and it will throw an error.
To view your complete configuration file, it may look like this:
# This file is generated from information provided by the datasource. Changes
# to it won't push across an case reboot. To stop cloud - init
# network configs capabilities, write a file
# /etc/cloud/cloud.cfg.d/99-disable-network-config.cfg with the following:
# network: {config: disabled}
network:
ethernets:
eth0:
dhcp4: TRUE
optional: true
version: 2
wifis:
wlan0:
dhcp4: TRUE
optional: true
access-point:
"SSID_name":
password: "Your WiFi_password"
I find it amazing that it works despite the changes that will not be maintained even after rebooting the message.
However, create the configuration using this command:
sudo netplan generate
And now apply it:
sudo netplan apply
Your network should be connected or error if something wrong on your Ubuntu. Try pinging a website or running an app update command.
0 Comments