Knowledgebase category: Hosting Definitions

Tutorials, publications and interesting posts regarding our hosting services
cPanel Questions
What is ETNHost Reseller hosting and how does it work?
Reseller hosting is a form of a web hosting service which allows a person to purchase web hosting services from a provider and then to resell it to their own customers for profit. The reseller is the one who sets the prices, the plans and the allowed resource usage for these plans but keep in mind that those plans must conform with the resources provided by the wholesale company’s resel... read more
What is ETNHost shared hosting and how does it work?
Shared hosting is a web hosting service where the available resources and space of a physical server are shared among multiple users. Each user, who is placed on the shared hosting platform, is able to use a number of resources (disk space, monthly traffic, email accounts, FTP accounts, databases, and so on) predefined by the hosting plan, which they have already chosen.  Users, whose websit... read more
Public Key Encryption Basics
There are two types of encryption – symmetric and asymmetric. Symmetric encryption is when a simple key (of letters, numbers, words, etc.) is applied to a text of a message to change it in a particular way (turning letters into their corresponding numbers of places in the alphabet). Everybody that knows the key can decrypt the message which is the main issue with symmetric encryption. As a ... read more
What is Shared Hosting ?
As the name states shared web hosting is the environment where your website shares space on the physical server with other customers' websites. This is the most affordable ( as the overall cost of server maintenance is amortized over many customers) and popular answer for the needs of the small businesses, as well as personal users. In most cases, websites of several pages containing text... read more
What is Dig (command) ?
Understanding Dig Command Basics: Dig (Domain Information Groper) is  a command-line tool for querying Domain Name System name servers, mail exchangers, hosts, etc. Dig command is mostly used for troubleshooting DNS problems because of its ease of use and clarity of results. Dig is part of the BIND domain name server software suite.  Dig is normally used with command-line arguments, bu... read more
What is a Mail Server?
A mail server is a software that is installed on an actual physical server and provides e-mail services.  How it works: a user sends an e-mail via their computer to another user. The e-mail goes first to the mail server which is providing the mail services for user 1. From there the e-mail is sent to the server that provides the mail services for user 2 over the Internet. The second mail ser... read more
What is RAM?
RAM or Random Access Memory is a type of computer memory. It is a hardware device on which information is stored and, later on, accessed randomly. The information kept on the RAM is usually the operating system, the programs and all other data that is currently being used. The information on the RAM quicker to access, which means that the processor can quickly reach it. This type of memory, ... read more
What is CPU (Central Processing Unit) ?
CPU or Central Processing Unit is the part of the computer, where all the calculations take place. It is often referred to as a processor. It is the most important part of the computer.  The CPU consists of two parts. The first one is called the Arithmetic Logic Unit or just ALU, and it is the part of the processor which performs arithmetic and logical operations. The second part is called a... read more
What is PostgreSQL?
PostgreSQL is a powerful open-source object-relational database system that runs all the major operating systems such as Windows, Linux, Mac, and Solaris. It supports storage of binary large objects including images, sounds and video. It has interfaces for Java, Python, Perl, Ruby, C, C++, and other.  Its features include: Multi-Version Concurrency Control (MVCC); tablespaces; ... read more
What is a Database?
A database is a collection of data, organized in tables. They provide easy access and management of the information that is stored in them. There are several types of databases: Relational database – this is the most basic kind of database there is. All the data is stored in tables also called relations. The rows are called tuple and the columns are called attributes.  Object databa... read more
What is VPS hosting
VPS is the abbreviation for Virtual Private Server and it is exactly that – a virtual server located on a physical machine. It has the metrics of a dedicated server and the environment of the shared. VPS is flexible, scalable and affordable hosting solution that can satisfy the needs of almost any website. This will be the right choice for those who have outgrown their shared hosting plan, b... read more
What is a Domain Name EPP code?
Extensible Provisioning Protocol or an EPP code is an authorization code assigned to a domain name. This code is unique and it is used for authentication during a domain name transfer, renewal, and registration. Its purpose is to provide a directive between the registry and the registrar.  This code provides security against unauthorized domain name transfers and it's obtained either dir... read more
What is a Domain Name Transfer?
We understand that your needs can change at a time– and you might wish to move your domain name to a different registrar. A Domain name transfer is a process during which a person changes their current registrar to another. This is usually done because the registrant is not satisfied by their current registrar, or because their website is hosted somewhere else and they want all of these... read more
What is Addon Domain?
An Addon Domain or an Added Domain is an option that allows you within the margins of a single web hosting account to create more than one website. This way, if you want to have more websites, you can place them all under your current web hosting account. These websites will share the parameters and resources of the said account, but will not share their contents.  The website will be p... read more
What is Parked Domain?
A parked domain is an added domain name (also called alias) to your current website. It is a common practice for various businesses to have multiple domain names parked to their primary one, thus open the very same website. It generates more traffic and it is often considered to be a helpful precaution against cybersquatters.  In other words, having parked domains is having multiple dom... read more
What is MySQL?
MySQL is the world's most used open-source relational database management system. It uses the Structured Query Language, which is the most popular and used language used for processing data into databases.  It is named after the daughter of its co-founder Michael Widenius – My.   What MySQL does is to create many tables that are small in size, instead of creating one huge tabl... read more
What is Linux?
Linux is an operating system, which is free and open-source. Linux is the name given to all of the UNIX-like operating systems that are based on the Linux kernel. Those different operating systems are called Linux Distributions.  It is probably the most popular free open-source software there is.  Linux is a part of the LAMP bundle, where the L stands for Linux OS. The different d... read more
What is LAMP?
LAMP is named as an acronym of the names of its original four open-source components: Linux OS; Apache HTTP Server;  MySQL; and PHP. LAMP is a bundle of open-source components, which is available to the public for free. It is used for developing dynamic websites and applications. Be Smarter! Ready to use what you've learned? Awesome. Enjoy increased power, flexibility, and contr... read more
What is an Open-source software?
Open-source software is a type of software to which the source code is made available to the public. Its license allows users to develop, make changes and distribute the software freely.  The LAMP stack is an excellent example of a bundle of open-source components. Be Smarter! Ready to use what you've learned? Awesome. Enjoy increased power, flexibility, and control for your website... read more
What is Apache?
Apache is a web server software. Its full name is Apache HTTP Sever, and it is currently the most used web server software in the world. It is free and compatible with operating systems like Microsoft Windows, OpenVMS, NetWare, but it is mostly used with Linux.  Apache is open-source, as well as free, which means that it is openly distributed among people, and anyone has the ability to devel... read more
What is Perl?
Perl is a general-purpose server-side, flexible programming language that is similar in syntax to the C language. It is mostly used for web development and server scripting. It is a stable platform that has lots of features. It is known to work with markup languages, and it supports MySQL and PostgreSQL as well.  Perl is known as the “duct-tape of the Internet” because it is... read more
What is Python?
Python is a high-level object-oriented programming language comparable to PHP, Perl, Ruby, or Java. Developers using Python can achieve the desired result with fewer lines of code compared to C++. Python has a large standard library. It also has a dynamic system and an automatic memory management system. The structure of Python allows the development of rather large and readable applications. &nbs... read more
What is CSS?
CSS stands for Cascading Style Sheets. It is a style language that is used primarily for describing the presentation of a document written in HTML. It allows a person to denote the outlook of the elements of an HTML page, or in other words the fonts, sizes and so on.  Be Smarter! Ready to use what you've learned? Awesome. Enjoy increased power, flexibility, and control for your websi... read more
What is PHP?
PHP is a widely popular server-side scripting language used to create dynamic pages. PHP can be embedded into HTML. It is used for creating interactive, dynamic sites with only just a few lines of code. It is an open source language, which means that it is available for general use.  PHP is extremely easy for newbies and offers lots of features to experienced webmasters as well. It  can... read more
What is JavaScript?
JavaScript has nothing to do with Java. It is a programming language that is used when you are making polls, quizzes and everything else that engages the visitor of the website. In other words, it makes the page/website interactive.  In order for JavaScript to run, when a user visits a certain web page, their browser must support JavaScript. Today most Internet browsers do.  Be Smar... read more
What is Java?
Java is a programming language that is essential for many sites and applications across the web. It is considered to be the foundation for developing content on the World Wide Web.  It is an object-oriented language that is really similar to C++, it is fast and reliable and used by over 9 million developers over the world.  Be Smarter! Ready to use what you've learned? Awesome.... read more
What is CDN?
CDN or a Content Delivery Network is a global network of proxy servers which are located in multiple data centers all around the world. CDN affords better performance to websites and higher availability. It delivers web content to an online user, base on his/hers geographical location. For example, if the website requested is hosted on a server in Germany, but the user that is requesting it i... read more
What is SSH?
SSH or Secure Socket Shell is a network protocol for encrypting data for the purpose of safe transfer. It is used to allow users to log into other computers and run commands on them. It provides a high security level. Every time that a computer sends data to a network, SSH automatically encrypts it, and after the end user has received it, the SSH decrypts it again. The process is called... read more
What is SSL?
SSL or Secure Sockets Layer is a technology used for establishing a secure connection between a client and a server. This is achieved throughout creating a secure encrypted link between the two. SSL ensures that the data that is passed between them will not be compromised or become corrupted.  In order for a secure connection to be established an SSL Certificate is required.  ETNH... read more
What is a Protocol?
A protocol is a set of rules that are used for communication among different kinds of data. The different kinds of protocols specify how the data should be addressed, transmitted, and received.  The Internet Protocol Suite is a set of protocols that is divided into four layers. These layers sort out the different types of protocols. These layers are as it follows: the Application layer;... read more
What is CMS?
CMS stands for Content Management System and denotes a computer application, through which the user can easily manage, modify and create content using an easy to use interface. A CMS allows inexperienced users to manage web pages – add and remove content, delete and create pages. Those CMSes that are designed to make it easier to manage a web page are often called WCMS which stands for Web ... read more
What is FTP?
FTP stands for File Transfer Protocol and is used for transferring files from an ftp client such as FileZilla, CuteFTP and so on, to a remote server, on a computer network. FTP uses the Transmission Control Protocol to establish the communication. Be Smarter! Ready to use what you've learned? Awesome. Enjoy increased power, flexibility, and control for your websites with us.   Start... read more
What is a Directory?
The directories are structures in which some kind of information is being stored. The simplest way to put it – directories are folders and subdirectories are the subfolders.   Directories are used for the organization of files, which are under a hierarchical structure. In most manuals they are described as an inverted tree. The folder that sits the highest in the hierarchy is called ro... read more
What is a Web Hosting? Types of Web Hosting Services.
Web hosting is a service that serves your website to anyone that visits it and is provided by a web hosting provider such as ETNHost. This service allows people to have access to a certain amount of the resources of a server (sometimes even the entire server), connected to the world wide web and thus being able to have their page/ website available to the public 24/7.   Types of We... read more
Definitions and Meaning: cPanel and WHM
cPanel is a server Control Panel, usually provided to the clients by the web hosting provider. It is available on Linux-based servers. Its easy-to-use interface allows clients to manage their bandwidth, e-mail accounts, FTP accounts, databases, files, software, stats and so on. ETNHost provides cPanel for FREE (included in the price) for the following web hosting services: Shared Hosting; Enterpri... read more
What is a Control Panel?
In terms of web hosting the control panel is usually a part of the web hosting services provided by the web hosting provider. It is a web-based GUI interface that allows clients to manage their web hosting services such as: bandwidth, e-mail accounts, FTP accounts, databases and so on. Such control panels are: cPanel; Plesk; Directadmin and many others. ETNHost provides cPanel FREE for the fo... read more
What is a Backup?
The term backup refers to the act of creating a duplicate copy of files as a precaution if they ever get compromised. The backed up files are located on an another device. Computers are known to break down, and the safest way to protect your files is to back them up. Be Smarter! Ready to use what you've learned? Awesome. Enjoy increased power, flexibility, and control for your websites wi... read more
What is a Client? (In a Network)
A client is an application that runs on a computer and communicates with a server in order to perform its operations. For example, a web browser is a web client that enables you to request web pages from a web server. Filezilla is an ftp client that enables you to connect to a FTP Server and transfer files. Microsoft Outlook and Mozilla Thunderbird are mail clients that connect to a Mail server (P... read more
What is Client-Server model?
The client-server model describes the relationship between a client and a server, where the client and the server are communicating with each other over a network or on the same computer. The communication can be between a web server and a web client (Chrome; FireFox), mail server and mail client (Thunderbird; Outlook) , FTP server and FTP client (FileZilla; SmartFTP; CuteFTP), database server and... read more
What is HTTP?
HTTP or Hyper Text Protocol is the most basic application protocol. It is the foundation of Internet communication. It works on the basis of a request-response relationship, where there is an exchange of information between the web server and the web client (browser).  Be Smarter! Ready to use what you've learned? Awesome. Enjoy increased power, flexibility, and control for your webs... read more
What is Software?
This is a term that describes all the types of computer programs and devices that operate on a computer. The software is a collection of instructions that allows the online user to interact with a computer.  There are different types of software: System Software – operating systems are an excellent example of a system software. Simply put, this type of software provides services to ... read more
What is a Web Server?
A web server is a program that is running on a remote computer that is also called a server. The purpose of the web server is to answer to the requests of the online users. These requests are made from the browsers to the web server via the Hyper Text Protocol (http://).  Every web hosting company has a web server software installed on their servers (machines). An example for a web server pr... read more
What is a Server?
There are two types of servers – a machine and a program. -  A machine server is very powerful computer that has a certain amount of resources. They are being stored in large facilities called data centers, under close observation by people make sure that the servers don't overheat, don't crash etc. -  A program server or a server software is a type of software that ... read more
What is an IP address?
IP stands for Internet Protocol and it is one of the most basic protocols on the Internet. It is an unique number, that very much resembles a phone number. It is used for computer communication. It helps the machines that are sending information, know where to send it to. The IP addresses also helps the machines that are receiving the information, know from where this info is coming.  ... read more
What is DNS?
DNS stands for Domain Name System, and throughout this global system the domain names translate into IP addresses. The system exists to make it easier for the online users to find the website/ page they are looking for. For example instead of typing the numbers of the IP address in order for you to find a certain website, thanks to the domain name system you are able to type in human-readable text... read more
What is a Subdomain?
The subdomain is a part of the main domain. A person can use a subdomain to separate certain sections from their website so they have different areas. The sub portion of the domain is located on the left side of the domain and it is separated by a dot.  In the example; my is the subdivision of the domain But how can a subdomain can be of use to you? You can use it for c... read more
What is SLD?
SLD stands for Second Level Domain, which is a lower level domain in the Domain Name System hierarchy below the TLD. In “.com” is the Top Level Domain and “example” is the Second Level Domain. SLDs refer to the organization or the individual that registered the domain name. Some registrars have introduced a second level hierarchy to the top-level domain, so that... read more
What is TLD (Top Level Domain) ?
TLD stands for Top Level Domain and it is the last part of the domain name. In other words, it is the part of the domain name located to the right of the dot (" . "). It identifies some additional information associated with the website such as location (.de; .fr; .uk); industry (.auto; .physio; .florist) or its purpose (.com; .org; .info). The ones that identify a country are ... read more
What is a Domain Name?
A domain is the human-readable address of the website. Computers communicate via numbers called IP addresses. Domain names mask those numbers/ IP addresses into something that people will easily remember and understand. Each domain name is unique and consists of a top level and second level domain. The top-level part is located right after the dot. The most popular top-level domains are .com; .net... read more