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 ...

I have a VM running Server 2008 R2 SP1 that is a network print server - TCP/IP print queues are installed on the server, and then shared out/published in AD. Client PC's connect to the shared printers ...

Your computer's firewall is a network security protocol that blocks unauthorized access from a local network or the Internet. The firewall allocates "ports" to programs that require network and ...

A flaw in Windows Firewall may prevent users from seeing all the open network ports on a Windows XP or Windows Server 2003 computer. The flaw manifests itself in the way the security application ...

A Port basically serves as an interface between your computer and the internet or other computers in the network. Every communication over the web is exchanged using these ports, so they are an ...

Though Firewalls are necessary when your computer is connected to the Internet, they can cause problems trying to get Internet aware programs working properly. For example, if you wanted to host a ...

You can select a default zone from the list and even set the default zone. Out of the box, the default zone is FedoraWorkstation, which rejects unsolicited incoming packets from ports 1 to 1024 ...

Fred Stluka from Bristle.com just introduced me to port knocking — a method of opening ports on a firewall by trying to connect with a series of ports in a pre-determined order. The sequence of ...

If you're looking for a way to discover which ports are standing wide open on network machines, read about a powerful cross-platform solution that will do the trick. Editor’s note on June 4, 2015: ...

Nearly everyone uses FTP for one reason or another. The problem is, FTP is a messy protocol that needs a lot of help to secure it. Let Thomas Shinder enlighten you. The File Transfer Protocol (FTP) is ...