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Description and explanation of different terminologies used in web and Internet.

Sender Policy Framework (SPF) : A Brief Overview

Sender Policy Framework or SPF is a technique that the makes falsification of the sender of an e-mail on SMTP is more difficult. So basic thing is, Sender Policy Framework is a way to prevent email spam by detecting its IP address from the header.   How Sender Policy Framework (SPF) works   Sender Policy Framework is in the DNS zone of a domain, it is a resource record named SPF and … [Read more...]

HTTP Error Codes : List and Description

HTTP status codes from a server comes in response on each HTTP request. The server tells client through HTTP status code whether about the request. On failure, the HTTP Error Codes status codes like 404, 403 and 400 tells what do do.   Purpose of this HTTP Error Codes list   There are two standard lists of HTTP Error Codes are available on the Internet - one is W3C and Internet … [Read more...]

Custom Domain Name for Google Sites

Custom Domain Name for Google Sites is quite easy to add and there are various ways to add your favorite .com domain name to point towards your Google Site. The question how to add a Custom Domain Name for Google Sites is asked by a visitor. she has searched many pages and basically clicked wrong places (including Ads) to get enough confused. Setting up a Custom Domain Name for Google Sites is … [Read more...]

TCP : Transmission Control Protocol

Transmission Control Protocol or TCP is a protocol about the ways in which data is exchanged between computers. Almost all current operating systems of modern computers understand TCP and use it to exchange data with other computers. TCP protocol is a reliable, connection-oriented, packet-switched transport protocol in computer networks. TCP is part of the Internet protocol suite (including … [Read more...]

Anycast : What is Anycast and Practical Usages

Anycast is an addressing mode in computer networks, where you can connect to a single computer from an an entire group of computers. It answers to the one who has the shortest route. Anycast is realized by a distribution of several similar servers on physically separate IP networks.   How Anycast works   In practice, anycast is often installed on every continent and in every country in … [Read more...]

HTTP Caching and Methods for the Cache Control

HTTP Caching is a technical approach in Hypertext Transfer Protocol (HTTP) based on certain criteria in a cache to cache resources including documents, images, files, to avoid the unnecessary data transfer, server requests and to reduce access time. In the HTTP standard tags are defined on the caching proxy and the client level (browser cache) support.   HTTP Caching is a technique to reduce … [Read more...]

Intranet : A Brief Details

Intranet originated from Latin "Intra" means "within" and the English part net for "network". Intranet unlike the Internet is not public and uses leased lines. In contrast to Local Area Network and Global Area Network, intranet is not the spatial extent of a computer network, but the (limited) extent of its user population.In general, the participants using an intranet has the login system, which … [Read more...]

IPv6 : Internet Protocol version 6 in Brief

Internet Protocol version 6 (IPv6), also known as Internet Protocol next generation IPnG in short, is a standardized method for transmitting data in packet networks, especially the Internet. In these IPv6 networks, the data is sent in packets, in which after a layer model control information of various network protocols can be transferred. IPv6 is a network layer protocol (layer 3 of the OSI … [Read more...]

Mail Server, POP3, IMAP and SMTP

Mail Server, POP3, IMAP and SMTP are related to e-mail and e-mail delivery system. A mail server is a network application located on a server on the Internet whose function is similar to postal mail but in this case the mail (sometimes called messages) are circulated, they do so through data transmission networks and unlike postal mail, hereby can only send attached files of any length to the … [Read more...]

Linux Commands and UNIX Commands for Server : The Ultimate List

Linux Commands and UNIX Commands for Server are very useful for Administration and Management of Web Server. We have compiled the list from various Text Books. Just like in our guide, Install WordPress on Rackspace Cloud Server we have used several basic, advanced and some typical shortcuts of Linux Commands and UNIX Commands. Linux Commands and UNIX Commands are basic and the quality of web … [Read more...]

Apache HTTP Server Basics

Apache HTTP Server is an open source and free product of the Apache Software Foundation and is the most widely used Web server on the Internet. Apache is among the LAMP software bundle - Linux, Apache, MySQL, PHP - needed by most of the primarily PHP based CMS, like WordPress. If you read this article on how to Install WordPress on Rackspace Cloud Server, you will notice we have installed Apache … [Read more...]