Networking
There are 14 entries for the tag Networking
Today's word in the Networking ABC's is the letter X. There really aren't that many words that start with X so my choices for today was limited. But, luckily for you all, there is one word that stands out as a necessity for application servers hosted behind HTTP proxies. The "X-Forwarded-For" HTTP header is used to allow a proxy server to inject the true originating IP address of a client connection into the HTTP request allowing the application server to know the callers true identity. "X" is for X-Forwarded-For X-Forwarded-For Pronounced: Eks-Fôr'wərd-ed-Fawr The X-Forwarded-For (XFF) HTTP header...
The letter for the day in the Networking ABC's is the letter "W". WAP, Web, Windows, Wireless, and WMI are common W words but for today's word I chose the one that makes disaster recovery as well as localized service possible: WAN or Wide Area Network. "W" is for WAN WAN Pronounced: Wahn A WAN, or Wide Area Network, is a computer network whose communications links cross metropolitan, regional, or national boundaries. WANs are used to connect LANs (or Local Area Networks) and other types of networks together, so that users and computers in one location can communicate...
The letter for the day in the Networking ABC's is the letter "V". Vary headers, verification, and VLAN's find a home with the letter V, but I opted for a word that enables scaling of websites by virtualizing the resources. Todays word is the word "VIP" "V" is for VIP VIP Pronounced: vip VIP, not be confused with V.I.P. or Very Important Person, stands for Virtual IP. A Virtual IP is a mechanism to allow for scalaing and maintenance no a physical resource by virtualizing the access to that device. A server is accessed by it's network address. ...
Today's letter of the day in the Networking ABC's is the letter "M". Unlike it's siblings MD5, MAC, and Monitor, today's word is actually a phrase that is important when privacy is concerned. Today's word(s) is(are) "Man in the Middle". "M" is for Man in the Middle Man in the Middle Pronounced: Man-in-th-uh-mid-l The man-in-the-middle attack (also known as a bucket-brigade attack and abbreviated MITM) is a form of active eavesdropping in which the attacker makes independent connections with the victims and relays messages between them, making them believe that they are talking directly to each other over...
Today's letter in the Networking ABC's is the letter "L". "L" has it's last hops, layers 1-7, loopbacks, and load balancing methods. But I opted for a word that is relates to something I despise: waiting in line. Today's word is Latency. "L" is for Latency Latency Pronounced: leyt-n-see Latency is defined as the delay between the moment something is initiated and the moment its first effects begin. In the networking world, this is the waiting you must deal with between the time a network connection is established and when your request can be processed. As I mentioned...
Today's word of the day in the Networking ABC's is the letter "K". There aren't that many good "K" words out there with regards to networking. Of course there are Keys with regards to cryptography, Kernel, and kilobytes. But, since networking at it's core is about connections, I opted for the "Keep-Alive" extension to HTTP that helps with connection consolidation. "K" is for Keep-Alive Keep-Alive Pronounced: keep-uh-lahyv The HTTP protocol is designed to be a stateless connection consisting of an inbound Request and outbound Response. The request and response are the content contained within a single TCP...
Today's letter in the Networking ABC's is the letter "J". "J" was a tough one as there aren't that many networking specific terms specific to networking. I looked and looked and after catching up on twitter, I realized the app I'm using for twitter is using a "J" word under the seems. Google talk is an instant messaging client that has integration with twitter via the Jabber protocol. So, there it is: today's word is "Jabber". BTW, does anyone know why I used the shark? "J" is for Jabber Jabber Pronounced: jab-er Jabber is a broad term...
The letter for today in the Networking ABC's is the letter "I". Words that come to mind starting with "I" are ICMP, IPSec, Interface, and the Internet. But since I get to pick the words, I picked my favorite "I" networking word: iRule. "I" is for iRule iRule Prounounced: Ahy-rool An iRule is a powerful and flexible feature of BIG-IP devices based on F5's exclusive TMOS architecture. iRules provide you with unprecedented control to directly manipulate and manage any IP application traffic. iRules utilizes an easy to learn scripting syntax and enables you to customize how you...
Today's letter in the Networking ABC's is at the core of what makes the Internet work. If you have used a browser to surf the Internet, then you have been, without knowing it, a user of the HTTP protocol. "H" is for HTTP HTTP Pronounced: āch'tē-tē-pē' HTTP, or the Hypertext Transfer Protocol, is a communications protocol for the transfer of information on networks including intranets and the world wide web. Developed by the World Wide Web Consortium (W3C) and the Internet Engineering Task Force (IETF), HTTP's original purpose was to provide a way to publish and...
Today's letter of the day in the ABC's of Networking is the letter "G". Gzip and group based authorization come to mind when thinking about G words, but for today's word, I've picked another core component to networking: the gateway. "G" is for Gateway Gateway Pronounced: Geyt-wey In networking terms, a gateway is a node that is equipped for interfacing with another network that uses different protocols than the source network. Gateways can operate at any layer of the OSI model. It's job is much more complex that that of a router or switch in that...
Today's letter of the day in the ABC's of Networking is "F". "F" starts some great networking terms such as Failover, Floating addresses, Filters, FQDNs, Forwarding, and Flooding. But none of those were exciting enough, so I opted to go with the "F" word of Firewall since a Firewall is a requirement in any modern network. "F" is for Firewall Firewall Pronounced: fīr'wôl A Firewall is used to represent any number of security schemes that prevent unauthorized users from gaining access to a computer network. Typically a firewall is implemented as a device or set of...
Welcome to the continuing series on the ABC's of Networking. For Today's letter of "D", I picked a core component in the scaling of websites and application servers. Today's word is a load balancing method that deals with dynamically changing application servers. "D" is for Dynamic Ratio Load Balancing Dynamic Ratio Load Balancing Pronounced: Dahy-nam-ik Rey-shoh Lohd Bal-uhns-ing The ratio method of load balancing distributes connections across an array of servers in a server farm in proportion to the static ratio weights assigned to each individual server. The Dynamic Ratio mode is like the Ratio method, except that ratio...
Welcome to the continuing series on the ABC's of Networking. In the "B is for BIND" post, I referenced the BIGipCookie which is a perfect lead-up for today's post. Today's letter of the day is "C" and for it I chose Cookie Persistence. BIGipCookie just happens to be the cookie name that the BIG-IP uses for it's implementation of cookie persistence. "C" is for Cookie Persistence Cookie Persistence Pronounced: Kook-ee Per-sis-tuh ns Persistence is the mechanism of connecting a single client connection to a single node in a server farm. Cookie persistence is a mode of persistence where a...
I was digging through some ideas for blog posts and with the popularity of the "101" series of tech tips we've done on DevCentral, I figured test the waters with some structure like that on my blog. So, here's a go at the first of (at least) 26 posts on "The Networking ABCs". Who knows, maybe someone will invent a new letter by the time I get to "Z". "A" is for Auth Since the term "Auth" is used freely to mean one or both of the following terms, you'll get a bonus for this first entry!...
