Navigating through settings
In case you want more customization, you can navigate the settings icon on the left side bar.
Navigate to settings
We will now quickly go through some of the main settings within Portmaster.
Caution: Make sure to only change things if you know what you are doing.
DNS servers
You can change the DNS provider to the one you prefer in case you forgot to change it during the setup.
Choosing DNS providers from settings
DNS cache
DNS cache stores some of the most frequently queried website’s ip within the system this process allows the system to “resolve” them faster since they are already within the system. You can turn this setting ON if you are experiencing poor DNS speeds.
Settings for DNS cache
Blocking incoming connections
This is one of the most important settings in Portmaster as it allows you to block all incoming connections directed toward your system. If you were running a server you would have to configure this so that your server could serve whatever it’s serving, but for most cases, in a desktop system, you are better off keeping it turned on and if you have some specific application requiring incoming connection in which case you can allow it on a case-by-case basis.
Force blocking incoming connection
Filter lists
This is where you can configure filter lists in case you missed them during the initial configuration. Here you can check all the filter lists that you want to apply for your PC but note that if you don’t know the output of different filters then it’s best to keep it on default as some sites may break or not even open if some filter lists are applied.
Filter lists in portmaster
How to setup Portmaster Firewall for Linux
“Linux is secure by default” You must have heard this a lot of times but guess what? It’s a myth.