A firewall is a software or hardware that checks information from the Internet or a network. Depending on your firewall settings, it blocks or allows it to pass through to your computer. A firewall ...

Open ports can expose your business's computer or network to security breaches. Discovering and closing open ports is essential for keeping your network safe. You can identify open ports on a Windows ...

A port is a numeric identifier for software that runs on a computer, like Web server or email server software. When a port is open, it's accepting connections from the outside world. It's not uncommon ...