Tuesday, September 4, 2007

How to Select a Webhost that Fits Your Needs

Whether you're considering starting a website or you have one and want to possibly move it, this article can help you decide what the best webhost means to you.

To begin, every website is hosted on only 3 platforms: Unix, Windows NT, Macintosh

Very few sites are hosted on a MAC server, so the majority of webhosts use Unix or NT. For these reasons we will focus on only those 2 platforms.

Unix and NT both offer various options and have different abilities. Your choice of which platform to use depends on what applications you want your site to run and the amount of control you want to have over your site.


Unix
Unix is the oldest and one of the most widely used operating systems. It is the basis of the internet and most webservers originally ran on a version of Unix. Unix is know as a multitasking operating system which means that it can run many applications at the same time without them affecting each other. This is very important when you consider that hundreds of websites, running thousands of CGI scripts, all receiving thousands of hits could be running on one webserver.

Why Use It?:

It's reliable Ability to host many websites on the same machine. Almost all CGI scripts run better on Unix. Programming flexibility. Much more administrative control.

With Unix, webmasters can really tweak their websites (assuming they know what they are doing) to run at optimal levels. Developers can run CGI scripts and create applications specific to their needs.

Down Sides:

Is case sensitive. It is not an easy operating system to learn. Must use telnet or Ftp to make changes.

Windows NT
NT is a relative newcomer to the webhosting game but it is fast gaining a large share of the business. NT was built to integrate seamlessly with Microsoft's web authoring tool, Frontpage. As such, it is often the perfect solution for newcomers who do not want to learn HTML or CGI programming or deal with the day to day hassles of administering a webserver.

Up Sides:

Can use Microsoft Frontpage to publish your website as opposed to using Ftp or telnet. Can use Cold Fusion. Somewhat easier to administer (especially for the average webmaster). Is not case sensitive.

If you do not plan on learning the in's and out's of the web and administering your site, NT is probably your tool of choice.

Down Sides:

Provides poorer security than Unix. Because of the security issues, the hosting provider will usually institute tighter security measures. Cannot run all CGI scripts although this is changing.

Your needs as the webmaster and your visitors needs will determine the type of webhost and the platform you need.

Once you have done some more research into what platform you need, stop by an independent website like: http://www.tophosts.com and choose one of the top 25 hosts to fulfill your needs.

Some issues to consider while pondering which host to choose:

1.Uptime: This is probably the most critical piece of information you need to know to make an informed decision. How often a server goes down means lost business and lost sales and no one needs that. Our webhost is up 99.9% of the time as compared to the first one we had which was more like 25% of the time.|

2.Bandwidth Usage: Some hosts actually charge you for the amount of traffic you get once you pass a certain percentage. Why on earth would you want to be charged for that? Our webhost offers us unmetered traffic at no extra cost (this is what you should look for).

3.Server Space: Look for hosts that give 50-500 mg of space. As the technology changes sites will take up more space. You should try to get as much as you can right now even if you don't use it all.

4.CGI Access: This is critical. You need the ability to use CGI and especially custom CGI. If a host doesn't offer it, run screaming!

5.MSQL; Real Audio; Real Video; Cold Fusion: This is the future of the web and in particular web marketing. Make sure a host offers support for these applications even if you don't presently have a use for them.

You will be glad that you spent your time doing this research before you jump in and choose a host or switch to a host that provides you with nothing but problems. You deserve the best, go for it.

How To Pick The Best Web Hosting Company

There are a lot of Web Hosting Company. First you should choose Good and Reputable company, then you should Filter that to the Best. Here is the criteria to pick the best Web Hosting Company.

Back End/Network Operations Centers
This is where your accounts are actually housed. Sometimes a hosting provider will lease a part of a larger network and sometimes a hosting provider will develop their own. It is important to find out what kinds and how many fiber optic connections the NOC has. Make sure there is plenty of redundancy built in. Make sure the NOC is managed 24/7, even on holidays. Make sure there are fire suppression systems in place. Last but not least, ask about security. Make sure there are plenty of security measure in place.

Customer Service
Are they friendly? Do they answer their telephones? Are you put on hold and if so, for how long? If you have to leave a message, do they respond quickly? Does the rep on the other end know what they are talking about? Look at their network page and see if they have reports of down time or issue statements about problems.

Technical Support
How long does it take to get questions answered and tasks performed. Send a test support message and gauge the response times. See if they offer 800 toll free support.

Ticketing Systems
Do they have a ticketing system that tracks performance times. This is key. If a hosting company has this, they are serious about improving internally.

Domain Names
Do they offer domain name sales? This can help to consolidate your vendor costs. See about getting a discount on domains if you are buying in bulk on a monthly basis.

Branding You
Does the hosting provider offer branded support? As you grow, you will need to expand and see if the hosting provider will set you up with your own technician in your company name. Do they offer branded control panels and name servers? You need these tools to grow. Find out how easy it is to set these features up for your own account.

Scalable Discounts
If you are growing at a rapid rate, ask for better pricing and discounts. It is ok to ask. It's even better when you get it and will
reduce your overhead.

Financial Overview
Is that particular company in the red of black? Do they have a good cash flow? How fast is the host growing and can they handle the growth? What are they doing to grow and maintain the customer service level you expect. Are they near a buy out or planning

Choosing Web Hosting OS (Operating System)

First things you have to choose with web hosting plan is web hosting operating system. It could confusing to choose which is the best. Here is list of web hosting operating system and information about the performance.

Linux
Linux, a version of UNIX, is a very versatile platform that serves a number of functions well. It is particularly suitable for meeting your Internet requirements, such as mailing, streaming, Web serving, and fileserving. Linux is a very cost-effective choice it uses hardware efficiently, and allows for more web sites per server, thereby lowering the cost of hosting per account. Linux servers are compatible with certain Microsoft extensions and applications, for example, MS SQL (a database program) or Microsoft Front Page (a web authoring tool). Many engineers prefer the flexibility, security, and control of Linux servers. Linux is Open Source (free) software and a host of free programs are available to users of Linux.

Microsoft Windows NT/2000
Window's 2000 graphical user interface makes it user-friendly and provides a familiar interface for most IT teams to work with. It integrates well with other Microsoft applications and there are a wealth of commercial applications available for this platform. Particularly attractive is the integration with Microsoft Application Server (ASP) which allows the creation of dynamic web pages linked to SQL databases, and other Legacy back office systems.

Sun Solaris
Sun Solaris servers offer the highest level of resources and power - these are the most robust servers! Sun has a proven track record and is deployed in many large Fortune 500 corporations. It is a mature platform and there are a large number of applications and development tools available. Because of Sun's capacity and stability it is ideal for high-traffic functions, such as database servers, high-traffic Web servers and mission-critical servers.

Cobalt RaQ
The RaQ was designed for virtual (shared) hosting of multiple Web sites. It's simple administration makes it a great first Web server. Its flexible administration interface also allows you to share administration responsibilities among your staff.

FreeBSD
FreeBSD is a version of BSD that was designed for the X86 processor. FreeBSD is a very stable open source operating system, and a good alternative to Linux. It is an extremely well-integrated and tested system, and is inexpensive. There are a large number of free applications available for use with it

Basic Features to Choose

1. 24/7 reliable tech support
2. Your own domain name (www.yourname.com)
3. At least 10GB of monthly transfer (traffic)
4. A minimum of 20MB - 50MB of server space
5. Unlimited true POP email accounts - name@yourdomain.com
6. Unlimited email aliases
7. Email forwarding
8. Unlimited autoresponders
9. Your own unrestricted CGI-Bin
10. Access to SSL Encryption for secure transactions
11. MySQL Database
12. Perl
13. htaccess password protection
14. Server Side Includes (SSI) support
15. Design (and upload to) your site using Netscape or
other HTML editing software
16. Microsoft FrontPage Server Extensions for those
utilizing FrontPage
17. Unlimited free access to your server via FTP/Telnet
18. Easy access to your log files
19. Statistics on visits to your site
20. Referral Program

Most Basic Feature on Web Hosting Plan

Here's you should always look within the hosting plan :

Disk Space
Estimates your disk space, one html page usually +- 150 KB, 25MB Disk Space = 166 pages.

Bandwidth/Data Transfer
How to easily calculate bandwidth you need. First take size of all pages and images/multimedia in your web site. Let's say it 50MB then how many visitors to your web site? Maybe you estimate it would be 10000 visitors per month, then bandwidth you need for is 50 x 10000 = 500 000 MB = 500 GB Data Transfer/month. There're a lot of web hosting plan with unlimited bandwith package :).

Domain Name
If you don't have any domain name yet for your web site, you should see if web hosting package include domain name registration. Usually they include it in their plan. Average cost to register a domain name is between 8$ to 12$ per year.

E-mail Account
You need it as identity for your website, ex. you@yoursite.com, support@yoursite.com. You should see how many e-mail accounts provided for your web site. Additional features on e-mail account is E-mail Forwarding, E-mail Autoresponders, E-mail Aliases.

Control Panel
If you don't like FTP to upload your web sites, then you could upload it with control panel upload menu. It's easy and simple job to upload. Control panel is a web page to control your hosting account, add e-mail accounts, see statistics of your web site etc.

Database
Did you need database? If you're using built-in script/CMS like mambo, joomla, PHPNuke, Forums like VBulletin, phpBB, or shopping cart, etc. then you need database for your web site. How many database you need? for all scripts above usually you just need 1 database account. Another consideration is how many space is for your database. I found two kind of database space offered by web hosting company, first they include it in your web space (web space = web space + database space) other is they specify space for your database.

Monday, September 3, 2007

Ask Web Hosting Company Before You Buy

Before you actually buying web hosting plan you'll have question, is this web hosting I want to host my website? If you look around hosting company web site there are always not enough information. So asking them is better than going with hesitation. This example I made to ask hosting company support center by e-mail.

Dear {hosting company name},

I am interesting with web hosting solution offered in your web site. I have a site that need hosting, my site is forum web site based on PHP, One MySQL Database, and a lot of images. I found one of your hosting plan which is {name of hosting plan}
suit my needs. I just need to ask some question to make me sure choosing your hosting plan.

What payment options are available? What is the options for payment period?

Is there a trial period or money-back guarantee?

Is that price included setup fee?

Is there discount price for that plan?

What is the options to upgrade?

What is server specs for that plan?

Will I have my own IP address or is it shared?

What type of support do you offer? Email? Phone? Public? Hours? Limit? Average Response Time?

Will I have shell account?

What are control panel features to manage my web site?

How long will it take, from the time I submit my order, for me to have access to the site and begin developing?

etc.

Please feel free to explain anything you think I might have missed. Let me know of any reason you would be suitable or unsuited for my site.

Sunday, September 2, 2007

Web Hosting Glossary

Here is the Glossary of Web Hosting Terms. Simple but easy to understand. Collected from Various Resources.


Alias
A name that points to another name. Aliases are used to make the original name easier to remember or to protect the site's identity.

Aliased Nameservers
An aliased nameserver is a nameserver that has been labeled as yours (the reseller's) despite the fact it actually belongs to your Web hosting provider. This ensures that domains located on your server are listed as "ns.yourservername.com" instead of "ns.yourprovidersname.com". Also see NAMESERVER below.

Apache
One of the world's most popular Web server programs, Apache was built by a group of open-source programmers and is often used because of its outstanding performance, strong security features and the fact that it is free.

ASP
Active Server Pages. ASP is Microsoft's server-side scripting technology. An Active Server Page has an .asp extension and it mixes HTML and scripting code that can be written in VBScript or JScript. ASP is distributed with Microsoft's IIS web server, so most host using IIS will also offer ASP for dynamic web programming. ASP.NET is the next version of ASP. Other popular server-side scripting languages are Perl, PHP, ColdFusion, TCL, Python, and JSP.

Audio Streaming
The process of providing audio content on a web site. This takes up a large amount of bandwidth, especially if you get a lot of visitors at your site. Some hosts do not allow audio or video streaming because of this.

Auto Responder
An automated program that acknowledges receipt of an e-mail message, and then sends back a previously prepared email to the sender, letting them know it was received. Once you configure your autoresponder, it sends e-mail with no further action required on your part, making your web site interactive around the clock. Most hosting companies let you set this up through their control panel.

Availability (Uptime)
Refers to the amount of time within a 24 hour period a system is active or available for servicing requests. For example, if a hosting company says it is available 99.9% of the time, they are claiming that your web site will up all the time except for about 8 seconds each day. Over the course of a year, in this example, the hosting company is claiming that your site will only be unavailable (couldn't surf to it) for 48 hours.

Backbone
Main high-speed network connection composing the Internet. Backbones are operated by major telecommunications companies like Sprint, MCI, or AT&T. In general, the better the backbone of the hosting company, the better the availability of the web sites that run on their computers. Internet backbone maps are here. http://www.nthelp.com/maps.htm

Backups
Web hosts back up data on their servers. Many host packages offer backups every 24 hours. This is supposed to prevent the loss of data should something happen to the server. . If you think you may need to restore old data in case of a disaster, it may make sense to choose a hosting company that performs regular backups.

Bandwidth
The amount of data that can be transmitted at a given moment to a server. The higher your bandwidth, the larger amount of traffic your site can handle at one time.

CGI (Common Gateway Interface)
A CGI is a program that translates data from a web server and then displays that data on a web page or in an email. CGI involves the transfer of data between a server and a CGI program (called a script). This allows HTML pages to interact with other programming applications. These scripts make web pages interactive. Page counters, forms, guest books, random text/images and other features can be driven by CGI scripts. Some servers have pre-installed/pre-defined CGI scripts, meaning that the scripts are already installed on the server for you to use on your site. Some servers permit user-defined or custom CGI scripts, which means the site owner creates his/her own CGI script and runs this custom made script on the web site. Not all servers allow user-defined (custom) scripts for security reasons. Almost all hosting companies offer CGI today. If you think you will need forms on your web site, CGI could be a key requirement.

Chat Server / Software
Some hosting companies allow you to develop a chat room or other type of chat service for your visitors. Be sure to check with the web host company about the details of the chat services offeed. Some servers permit you to configure the service, and others pre-configure everything for you while others do not allow chat rooms at all.

ColdFusion
ColdFusion is an easy to use server-side scripting language developed by Allaire. It comes with ColdFusion Studio, a visual IDE. Other popular server-side scripting languages are ASP. Perl, PHP, TCL, Python, and JSP.

Co-location (colo)
This hosting option gives webmasters complete control over their server. You are responsible for providing the physical hardware and network administration; the hosting company will provide you with the rack space and Internet connection.

Control Panel
An online package of tools permitting easy site management and editing. Almost all hosting companies provide this option today. It is a very important feature to have. Most control panels will let you upload files, add email accounts, change contact information, set up shopping carts or databases, view usage statistics, etc.

Cascading Style Sheets (CSS)
A style-sheet determines how the HTML document is displayed by the browser. The current version of CSS is version 2 (CSS2).

Database Support
If your web site will leverage a database to store information, database support by the hosting company will be required. After you have developed your web site, you will know which database will be required. Some commonly used database programs are SQL Server, MySQL, Access, Oracle, and FoxPro. Databases can be difficult to configure properly. Before you sign up with a web host, first inquire if the host can support your database needs.

Data Transfer
This is the amount of data that is transferred from an account as visitors view the pages of the web site. If you have a web site with lots of video, audio, and images that gets many visitors per day, you would have to make sure that you choose a host that will allow large amounts of data to be transferred. If you choose a host that only allows 200 MB of data transfer per month, and your site transferred 500 MB per month, then the host may stop half of your visitors from viewing your site and you could lose potential customers. Your best bet is to try to find a host that offers unlimited data transfer or at least a Gig of transfer. A gig is more than enough for most web sites. As a general rule, 500 MB of data transfer is equivalent to 20,000 page views.

Dedicated Server
A type of Hosting account in which the web hosting company provides you with an entire hosting setup including your own server hardware that only you can use. This usually means a much faster loading time for your site because the entire computer is "dedicated" to running the server software. This is different from most other hosting accounts in which your web site will share space on a server with many other web sites, called a virtual server. A dedicated server makes sense for web sites that require higher availability and higher data transfer rates.

Disk Space
This indicates the amount of disk space that will be available to you on the hosts server to hold your web site files. Normally because HTML files are small, a web site (unless it has extensive graphics or database functionality) will be small, as low as 1 or 2 MB in most cases. When you do a search on FindMyHosting.com and select disk space as a factor in the search you are indicating a minimum level that you want a plan to offer.

Use windows explorer to check the total MB of your site while it is still on your development machine. Then perhaps double your sites current size so that you have room to grow. When you check the total MB of your site don't forget to include the total MB of your graphics files.

A good rule of thumb is to assume approx. 50 KB per page (1 MB = 1000 KB, 1 GB = 1000 MB). 50 KB per page is on the high side so it's a conservative estimate for the average size of a web page.

Domain Parking
Many hosting companies give you the option to 'park' your domain name without actually having your web site up and running. This is a nice option if you want to acquire a domain name for your web site well ahead of having the web site itself designed and constructed.

Domain Name
The unique name that identifies an Internet site. Domain Names always have 2 or more parts, separated by dots. The part on the left is the most specific, and the part on the right is the most general (FindMyHosting.com). Technically, the domain name is a name that identifies an IP address. To most of us, it simply means www.yourname.com. Because the Internet is based on IP addresses, not domain names, web servers depend on a Domain Name System (DNS) to translate domain names into IP addresses. Simply stated, domain names allow people to find your web site by name rather than by its numerical (IP) address.

Domain Name Registration
Often a hosting company will offer to register your domain name at the time you sign up for a hosting plan. This normally incurs an additional charge but may be cheaper and more convenient than using a separate domain name registration service. We recommend that you go ahead and register your domain name as soon as possible, especially if you think it will take some time to develop the site itself. Click here for a list of domain name registration companies.

Domain Name System (DNS)
A model for tracking other machines (that contain web sites) and their numeric IP addresses. Translates domain names. When a computer is referred to by name, a domain name server puts that name into the numeric IP address assigned to that computer. So when you buy a domain, say www.yourname.com, it does not become accessible until it gets assigned an IP address from a hosting company. Once the IP address is assigned, a cross-reference record (DNS record) is created that points your domain name to the numeric IP address.

Email POP Account
POP (Post Office Protocol) is an actual e-mail account on your web host's e-mail server. Think of each POP account as a unique email address (john@yoursite.com, contact@yoursite.com, etc.) Before you choose a specific hosting plan, you should know exactly how many email accounts are required to meet your specific needs.

Frontpage (Microsoft)
Front Page is an HTML editor made by Microsoft. It is commonly used to create web sites

Frontpage Extensions
Frontpage extensions can be thought of as "mini programs" that allow features of a web site created with MS Front Page to operate smoothly. It is possible to use MS Front Page to create a web site and host that site on a server that doesn't offer FP extensions, however some of the powerful features of the program cannot be used in these web sites. See Microsoft's Front Page site for more information. After you design your web site, you will know whether Frontpage extensions will be a requirement.

File Transfer Protocol (FTP)
A way of transferring files (uploading and downloading) across the Internet. Most web sites are uploaded to the Internet by means of an FTP program. This is how the web site you create on your computer at home is transferred (uploaded) to the Internet. Some software, such as Microsoft Front Page, does not require use of an FTP program but the use of most any other HTML editor requites the use of and FTP Program. There is a free FTP program called WS_FTP and you can download it at download.com. There are many Internet sites that have established publicly accessible repositories of material that can be obtained using FTP, by logging in using the account name anonymous, thus these sites are called anonymous FTP servers.

Host Country
Specifies which country the hosting company resides. The internet is a very complex web of server computers connected through telecommunications devices. In general, it is best to host your web site in a location closest to the users that access it. For example, if you plan to deploy a web site that will attract mostly German visitors, it may makes sense to choose a hosting company located in Germany.

Host Platform
This is the platform of the hosting providers servers. Hosting companies will typically having a hosting platform based upon Windows 2000 (Win2K), Windows NT or Linux. If you have a basic web site that does not make use of server side applications such as a database then you do not need to worry which platform is used.

IIS
Microsoft Internet Information Server. Microsoft's Web server that comes built-in with Windows NT Server 4 and Windows 2000 server.

IMAP
Internet Message Access Protocol. A method allowing a client email program to access remote messages stored on a mail server. The protocol includes operations for creating, deleting, and renaming mailboxes, checking for new messages, message parsing, searching, and setting and clearing flags.

Javascript
A scripting language which enables web designers to add dynamic, interactive elements to a web site.

Java Servlets
A servlet is an application or a script that is written in Java and executed on a server, as opposed to on a client. It is analogous to CGI, although servlets are more than simply CGI scripts written in Java.

Mailing List Software
A mailing list is a discussion group based on the e-mail system. You may want to set one up - they're very useful promotional tools. Even if you don't want to host a discussion group, you can use a mailing-list program to distribute a newsletter. Many companies have mailing-list software available for their clients to use -- if so, ask whether there's an additional cost, how many mailing lists you are allowed to have, and how many members per list.

Managed hosting
A dedicated server that is accompanied by a full suite of technical support, maintenance and monitoring services. This differs from dedicated Web hosting, where customers are provided with their own servers but are still responsible for virtually all administrative and maintenance duties.

Name server
A server responsible for translating domain names and IP addresses.

Perl (Practical Extraction and Report Language)
Perl is an interpreted language optimized for scanning arbitrary text files, extracting information from those text files, and printing reports based on that information. It's also a good language for many system management tasks.

PHP
PHP is another scripting language. Like ASP, it's commands are embedded within the HTML of a web page. The commands are executed on the web server, making it browser independent. The web browser only sees the resulting HTML output of the PHP code.

Post Office Protocol (POP)
This is a method of retrieving e-mail from an e-mail server. Most e-mail applications (sometimes called an e-mail client) use the POP protocol, although some can use the newer IMAP (Internet Message Access Protocol). There are two versions of POP. The first, called POP2, became a standard in the mid-80's and requires SMTP to send messages. The newer version, POP3, can be used with or without SMTP. The newest and most widely used version of POP email is POP3 email. You will see the term POP3 in most of the web hosting plans available today.

Reseller Plans
Many hosting providers allow you to be a reseller of hosting space earning a commission off of each sale. If you intend to be a provider of hosting services, you should investigate this option as you decide where to host your web site. Many hosting companies offer discounts (in addition to revenue opportunities) to companies that wish to remarket their web hosting services.

Setup Fee
Some hosting companies charge a one time setup fee to set up your hosting account. It is worth to also take this into account when looking at the monthly fee. If you select the 'No Setup Fee' checkbox in the search then any plans that involve a setup fee will not be found.

Server
A computer, or software package, that provides a specific kind of service to client software running on other computers. The term can refer to a particular piece of software, such as a WWW or HTTP server, or to the machine on which the software is running. A single server machine could have several different server software packages running on it, thus providing many different servers to clients on the network. More specifically, a server is a computer that manages and shares network resources.

Shared hosting
The most basic of Web hosting types. With shared hosting, numerous Web sites are shared on one server. While an economic solution, they typically cannot handle large amounts of storage or traffic.

Shell Account
Something experienced computer users often request. Permits you to edit your files online in real-time, rather than making changes to your site offline and then uploading the changes. Unless you intend to manage the web server your site runs on, a shell account should not be needed.

Shopping cart
A program designed to handle the e-commerce section of a Web site. Shopping cart software lets users browse for and purchase products online.

Simple Mail Transfer Protocol (SMTP)

The main protocol used to send electronic mail on the Internet. Most Internet email is sent and received using SMTP. SMTP consists of a set of rules for how a program sending mail and a program receiving mail should interact.

Server Side Includes (SSI)
Commands that can be included in web pages that are processed by the web server when a user requests a file. The command takes the form . A common use for SSI commands is to insert a universal menu into all of the pages of the web site so that the menu only has to be changed once and inserted with SSI instead of changing the menu on every page.

Secure Socket Layer (SSL)
A protocol designed by Netscape Communications to enable encrypted, authenticated communications across the Internet. It is used mostly (but not exclusively) in communications between web browsers and web servers. URL's that begin with "https" indicate that an SSL connection will be used. SSL provides 3 important things: Privacy, Authentication, and Message Integrity. In an SSL connection each side of the connection must have a Security Certificate, which each side's software sends to the other. Each side then encrypts what it sends using information from both its own and the other side's Certificate, ensuring that only the intended recipient can decrypt it, and that the other side can be sure the data came from the place it claims to have come from, and that the message has not been tampered with.

Statistics
Many hosting companies run software on their web servers that collect usage information about your web site and compile it in a user-friendly, easy-to-read format for you to analyze trends about your web site. Having access to statistics is critical if you need to know how many visitors are coming to your site, which web pages receive the most attention, and how much time people actually spend browsing your site.

Subdomain
Typically known as a "domain within a domain", subdomains are individual Web addresses built upon a pre-existing domain name (such as clientname.yourhostingcompany.com). As a reseller, you will have the option of assigning subdomains to clients if they do not choose to have a domain name.

Tape back-up
A popular and inexpensive way to back up Web sites. Contents of a site are periodically stored that looks similar to a cassette. Some cassettes can store several gigabytes.

Unix
A computer operating system designed to be used by many people at the same time (it is multi-user) and has TCP/IP built-in. It is the most common operating system for servers on the Internet.

Unique IP Address
In many hosting plans, you share an IP address and you will be able to view your site through your domain name only. Obtaining a unique IP address (see IP Address) provides a one-to-one relationship between your domain name (www.yourname.com) and an IP address.

Video Streaming
The process of providing video data or content via a web page.

Virtual Server
A web server which shares its resources with multiple users. It's another way of saying that multiple web sites share the resources of one server. If you do not need your own web server (i.e. your own server class computer), you will use a virtual server to host your web site.