Do you remember when we used multi-protocol routing for IPX, AppleTalk, and TCP/IP running on the same network? In the 1980s and early 1990s many enterprises had multiple protocols running on the ...

Part I of this article discussed tcpdump, a command-line utility that sniffs network traffic. Now let's see what it can do. Scenario 1: Established Telnet Connection Using tcpdump we can analyze the ...

When I use the netstat command to look at the open TCP/IP connections on my PC, there are connections that should be closed that are in the TIME_WAIT state. What is this, and why do connections stay ...

TCP is the de-facto transport protocol on the Internet. It makes sure to send, and receive information across the internet for every type of content. It’s everywhere. When you load a website or send ...

Over the last several years, TCP/IP has gone from being the protocol that only geeks use, to a universal protocol that everyone uses, thanks to the widespread use of the Internet. TCP/IP has been ...

I was just reading about the new SMB 3.0 features that will be released with Server 2012 and Windows 8. One of the features that really has me intrigued is the new SMB Multichannel. SMB Multichannel ...

The use of TCP/IP-based communication protocols is not a new development. As the burgeoning success of the Internet attests, TCP/IP usage is widespread. Until now, the use of TCP/IP—particularly over ...

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 ...

I've been using MS Outlook for email for a while, and I'm using dialup internet right now.<P>For the past few days, when I try to check mail from my pop server I get ...