limit bandwidth.md

Limit bandwidth with wondershaper

1. Install tools

sudo apt install wondershaper ifupdown isc-dhcp-client

2. Backup network interfaces config

sudo cp /etc/network/interfaces /root/backup.interfaces

Now if anything goes wrong, you can restore your config with sudo cp /root/backup.interfaces /etc/network/interfaces.

3. Set bandwidth limitations

Note: You can list your network devices with ip addr.

sudo nano /etc/network/interfaces

Paste the following lines:

auto end1
iface end1 inet dhcp
    up /sbin/wondershaper end1 1024 512
    down /sbin/wondershaper remove end1

Save changes and exit nano.

4. Apply changes

sudo ifdown end1 && sudo ifup end1

Note: May give the message "ifdown: interface end1 not configured". This does not mean something went wrong.

5. Test changes

pipx install speedtest-cli

speedtest

Note: If you get "ERROR: HTTP Error 403: Forbidden", try running speedtest --secure.

Results should be around 1024 Kb up and 512 Kb down.