IP tools, when used properly, can help system builders tackle set-up and configuration chores, speed troubleshooting and problems resolution, and address all kinds of security issues and concerns. A ...

PortExpert is a free application that can give very useful information about all TCP, UDP communications connected to the system and is hence useful to identify potential threats. These days we are ...

Data packets travel to and from numbered network ports associated with particular IP addresses and endpoints, using the TCP or UDP transport layer protocols. All ports are potentially at risk of ...

Port Query (PortQry.exe) is a command-line utility in the Windows operating system that you can use to help troubleshoot TCP/IP connectivity issues. The tool reports the port status of TCP and UDP ...

What is TCP/UDP port 27? I've looked it up in IANA's list of well-known ports and it came up as nsw-fe, or more appropriately, "NSW User System FE", but just what the hell is it? I've been told it was ...

As with any network and internet-capable computing system, many of Apple's services and programs require access to the internet and/or local network using TCP and UDP ports to function properly. When ...

Netstat, the TCP/IP networking utility, has a simple set of options and identifies a computer’s listening ports, along with incoming and outgoing network connections. This data can be very helpful if ...

Two simple filters for wireshark to analyze TCP and UDP traffic Your email has been sent Wireshark is a protocol analyser available for download. This week’s post ...

Hey,<BR><BR>I have a Network Evereywhere router, but it's basically a Linksys. The specs are listed here, and all support is directed toward Linksys (like tech support). My friend has a Linksys router ...

Why you need to know Cisco IOS ACL port numbers Your email has been sent What’s a port number? What does this have to do with the Cisco IOS? When do I need to know a port number? Summary When working ...