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 port number is a way to identify a specific process to which an internet or other network message is to be forwarded when it arrives at a server. All network-connected devices have standardized ...

Firewalls are devices that help keep your computer safe from threats on networks. Windows includes a program called Microsoft Firewall to maintain system security. There may be occasions when you need ...

The well-known port numbers are the port numbers that are reserved for assignment by the Internet Corporation for Assigned Names and Numbers (ICANN) for use by the application end points that ...

When working with the Cisco IOS, it’s very important to know your TCP and UDP port numbers. This is especially true when creating IOS access control lists (ACLs). Let’s take a closer look. What’s a ...

SMTP is a communication protocol for sending and forwarding emails. This article explains the mechanism, the differences ...

In TCP/IP and UDP networks, a port is an endpoint to a logical connection and the way a client program specifies a specific server program on a computer in a network. Some ports have been preassigned ...

I have written some Monte Carlo simulation code that's designed for big parallel simulations, and it communicates over TCP/IP. I was running some quick tests with it, and decided to use port 1066 for ...