All Categories » Networking » Firewalls

Do I need a firewall, and if so, what kind?
Firewalls are a critical component of keeping your machine safe on the internet. There are two basic types, but which is right for you? (Continue reading...)

Does my router have a firewall or not?
Most routers both do, and do not, have a firewall. The good news is that the protection offered by a router's firewall is often exactly what you need. (Continue reading...)

Firewalls

How can I tell if my computer's been accessed by someone else, and how do I prevent it?
Internet security is normally about keeping us safe from the internet - but what if the risks and threats are in our home and on our own local network? (Continue reading...)

How secure am I on a VPN?
Connecting to a VPN can introduce risks as you expose your machine to others on that same VPN. Fortunately it's easy to increase your personal security. (Continue reading...)

I use Internet Connection Sharing and someone was able to see my main computer - why?
Internet Connection Sharing allows you to share the internet connection of one computer among several others. There are risks if not set up properly. (Continue reading...)

Is it ok to have more than one firewall?
Firewalls can do a good job protecting you from internet threats, but having too many of the wrong kind can cause conflicts. (Continue reading...)

Should I disconnect my modem cable when I'm not using my computer?
It's typically not necessary, or even desirable, to disconnect your modem when not in use, but there are steps you should take to stay safe. (Continue reading...)

What's a firewall, and how do I set one up?
Firewalls are an important part of keeping your computer safe when connected to the internet. We'll look at what a firewall is and your choices. (Continue reading...)

Why are processes listening to closed ports on my firewall?
A firewall will prevent malicious and other messages from reaching your computer, but it won't stop your computer's software from listing for them. (Continue reading...)

Why do these firewall tests say I've failed? Should I be worried?
For various reasons firewall vulnerability tests can be alarming. Issues they report can be actual problems, or not, depending on your situation. (Continue reading...)

Why is my firewall software alerting me to a connection attempt from an address like 192.168.1.1?
Firewall software can help protect against remote intrusion attempts, as well as outgoing attempts. 192.168 addresses give a clue as to the source. (Continue reading...)