Network Protocols

Last Updated on 12 April 2011, Total: 48 Articles and Tutorials

This section contains articles that will help you understand how networked computers communicate with each other using a pre-defined set of rules, otherwise known as a protocol.

  1. Understanding the FTP Protocol

    Out of the many protocols in existence today only a couple have been written for the purpose of data transfer. After all, not all of the Internet’s activity revolves around HTTP and web pages. This article will cover the FTP protocol and how it goes about actually doing your data transfers for you... Read More

  2. Understanding the ICMP Protocol (Part 2)

    In part one of the article we covered what the ICMP protocol actually was, and what it was used for. Further to that we also looked at one of the most common ICMP message types seen; the ping packet. This last part on ICMP will cover other various types of ICMP error messages that can commonly be seen traversing the... Read More

  3. Understanding the ICMP Protocol (Part 1)

    Can you imagine a world where there are no traffic lights, stop signs, and other ways to control daily life? Well, just imagine what the Internet would be like then without the ICMP protocol. It would quickly become an unwieldy mess without it. In this article we will explore just what the ICMP protocol is, and how it works... Read More

  4. Understanding the UDP Protocol

    When it comes to moving all that information across the Internet there is not only one choice when it comes to transport protocols. There are two. Namely, TCP and UDP. In this article we will look at the User Datagram Protocol, aka UDP... Read More

  5. Understanding the TCP/IP Protocol (Part 3)

    In part two we broke off analysis of the packet with the Win Size metric. In this final part we will cover the remaining metrics, as well as cover what all those hex values mean. Being able to understand what the hex values mean is also key to becoming a good network engineer... Read More

  6. Understanding the TCP/IP Protocol (Part 2)

    In part one of this article series we laid out the background information necessary to tackle this article’s information. Contained in this article is the actual breakdown of a packet’s contents, and what they mean. This type of low level TCP/IP information will enable you to make far better judgement calls when investigating network issues at the packet level... Read More

  7. Understanding the TCP/IP Protocol (Part 1)

    The world of computer networking is built upon a series of protocols. These very same protocols are the worker bees that keep the packets flowing from one computer to another. Gaining an understanding of them greatly helps one to understand how computers talk to each other. This series of articles will attempt to convey that very knowledge... Read More

  8. Introduction to the Simple Network Management Protocol (SNMP) Part 1

    In this two part article we will look at how to use SNMP, the Simple Network Management Protocol, and install the service on Windows Server 2003. We will cover the essentials of the SNMP protocol, how it is used and how to install it and configure it to work within a Community... Read More

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