Fix sudo issues

If you see the following error in your terminal it could be related to a previous bug in the Host Minder app.

sudo: unable to resolve host _hostname_: Name or service not known

How to fix:

Disable Host Minder if it is currently enabled.

Be sure your packages are updated by running the following command.

sudo apt update && sudo apt upgrade

Run the following command to ensure that your machine's hostname is listed in the /etc/hosts file.

sed -i "/^127.0.0.1\ localhost$/ s/$/\ $(hostname)/" /etc/hosts

Now you can re-enable Host Minder and choose the preferred Protection Level.