4G USB dongles are useful for having an internet connection using a SIM card.
To configure a USB dongle on an Ubuntu server you can follow the next steps.
First, we should connect the dongle to the server.
Once it's connected and running, we should run the next command to find out the network interface of the dongle.
netplan status --all
It should output something like this.
- 1: lo ethernet
- 2: eth0 ethernet
- 3: wlan0 wifi
- 10: enx025a57093630 ethernet
In my case,the network from the dongle is enx025a57093630.
Next, we should modify the netplan configuration adding the interface from the previous command.
vi /etc/netplan/50-cloud-init.yaml
network:
version: 2
ethernets:
eth0:
optional: true
dhcp4: true
enx025a57093630:
optional: true
dhcp4: true
Now the server should receive an IP address from the DHCP on the dongle, after this the server should be able to reach the internet.