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 ...

In the last newsletter, we began a discussion of TCP/IP and its 25th anniversary. One of the major shifts that IP brought about, of course, was the move from connection-oriented to connectionless ...

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 ...

Streamlining data transmission from the client to the server is an ongoing challenge, and some aspects of high-performance network transmission can be confusing. This article explores various methods ...

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 ...

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 ...

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 new generation vehicle will provide connectivity and telematics services for enabling vehicle communication. The communication over IP in TCP/IP (Transmission Control Protocol /Internet Protocol), ...