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12 Jul 09 Web Hosting, Defined

Web hosting may be defined as renting space on a web server in its simplest form. One should keep in mind that a website is a collection of files linked together by HTML code to display text and graphics on a computer. However website is not complete here until and unless it is displayed on the net. To make it visible for the world it has to be housed on a computer somewhere that has access to the Internet. This is not possible by just a computer rather special device is required termed as web server. A web server may be defined as a computer set up with special software that allows it to receive requests from the internet for the website files it has stored on it and to send those files out over the internet so that the requesting computer can display them.

Web server in addition to making site visible performs several other functions as well like it provides the ability to create email addresses based on one’s domain name and even helps in sending and receiving emails with them. There are several types of software installed on the web server that allows one’s website to run programs, create and manage databases, display video, etc. One must note that almost any type of computer can function as a web server, but it’s the software that’s on it that makes it a server.

When one goes buying a web hosting, the monthly fees to be paid includes cost for maintenance and upgrading of the server’s hardware and software, the cost of keeping it online 24 hours a day, 7 days a week in a secure data center with a fast and powerful internet connection, and cost of professional proving these services. It is surprising to know that it is possible to turn one’s home or office computer into a web server if one really desires, but it is just not economical. Therefore it is better to outsource it. There are several kinds of web hosting available which are discussed below:

Kinds of web hosting:

Shared Hosting – Through a shared server one can save a high amount. If one talks about the drawbacks then Spamming and blacklisting from different search engines are the key problems. Such problems arise due to the reason that several sites are assign to one particular IP address. One should demand for a separate IP address for his/her website (on additional monthly charges) to secure the user from such problems.

Dedicated Hosting –Dedicated servers are best for big, highly trafficked websites, which will require large amounts of server resources to run. One of the downsides to shared hosting is that the server’s resources are divided across all the sites it’s hosting and answering page requests for. If you are in a dedicated environment you can better monitor your server resources. The downside is that dedicated servers will run you generally $50 per month or more. Shared hosting can be purchased for as little as 5$ a month. Most small or medium sized businesses will have neither the website size or bandwidth requirements to make dedicated servers cost effective.

Server Co-Location – If one wants to have full control over every aspect of his/her web server, he/she might very well choose to buy one and maintain it himself/herself if he/she is having sufficient knowledge. Still there are possibilities that one is not having enough resources to keep his/her server completely safe from power outages, roof leaks, thieves, unwary employees and other problems and in addition it is not possible for him/her to keep it on the internet on a fast, high-bandwidth connection through out. Thus he/she needs a data center to provide those services for him/her.

Co-location is the center providing facilities like physical security on rental, continuous electrical power and a fast, reliable Internet connection for a server that one owns. However, the data center is not responsible for any of the hardware or software maintenance of a co-located server, rather user his/her self. Thus it is a cheaper alternative to dedicated hosting if one is having the necessary expertise and time to run a web server by own.

There are several web hosts offering UNIX hosting and Windows hosting.

UNIX Hosting

There are several web servers in the world running mostly on UNIX. UNIX is an operating system originally developed for servers and networking. Till now many different versions of UNIX have been written by programmers around the world under the open-source protocol, which means that the code for the operating system is openly available so as to enable programmers to customize and make improvements when and where necessary. The two most popular forms of UNIX are Linux and BSD that comes in several varieties, like Red Hat Linux, Debian, SuSE, and FreeBSD. The best part of UNIX is most of above mentioned versions can be obtained free of cost, making UNIX hosting cheaper for a web host in comparison to other operating systems. Other plus points of UNIX are that UNIX hosting platforms are generally considered to be stable, secure, powerful and fast. That is the reason why most web programming applications can be performed by software that is available for a UNIX platform.

Windows Hosting

Another very popular operating system developed by Microsoft is Windows operating system, Windows Server 2003. Like every thing useful it is having price and can be obtained by purchasing a license, which in turn increases the cost of operation for the web host and usually results in higher hosting prices. This is considered a negative point as compared to UNIX. Plus points of Windows include it is mainly user friendly however it is generally considered to be less powerful and secure than UNIX for operating in a network environment. There are several scripting languages like ASP, ASP.NET, and Cold Fusion, which will only run on a Windows server, as will the Microsoft SQL Server and Microsoft Access database programs. Thus the above are some of the most popular scripts for certain web programming applications, and if one is thinking of using them while building his/her site, he/she will first definitely need to find a Windows host.

Before searching for a web host, it is essential to know some important terms used in hosting. They are discussed as under:

Storage or Disk space –As one’s website is a collection of files being offered on the Internet for viewing, it is necessary for storing them somewhere for retrieval and take up space. For each and every web server there is a limited amount of hard disk memory, which is divided up and offered to hosting customers. Different package levels are there, so as to enable to pay more for more space and vice versa divide specifically that space up. If one’s website expands its space then the user needs to buy extra space from the web host.

Bandwidth or Data Transfer –One of the crucial parts to verify is bandwidth. There are several sites, which loose their host due to excessive downloads causing budget going beyond their expectations. Occasionally, host even charges in hundreds of dollars for the additional bandwidth. One should confirm about this before dealing with any of the host. Usually, ideal-hosting providers deliver initial bandwidth of 25 to 50 GB to the users.

Uptime –It is a universal truth that if one talks about perfect web servers then they are the one, which would be up, and running and offering web pages to the world round the clock, whole year. But, it is also true that web servers are mere computers, and like any other computer, they may fail or needs repairing or updating. Often web hosts gives 99% uptime guarantee, and if they fail they refund a certain portion of user’s money depending on the amount of excess downtime they experienced.

Traffic Statistics – By traffic statistics we mean those programs that track visitors to one’s website. These programs are capable of telling how many times a user visited one site, how many visitors were unique and how many came back more than once, which pages were most popular, from where the visitors came to one’s site, what search terms they used in the search engines etc. In addition they offer several types of information which are useful for marketing one’s website to a target audience. There are several web hosts offering some sort of traffic statistics software with their hosting packages.

CGI Scripts – There are several web hosts offering a variety of free CGI scripts with their packages. CGI Scripts are the things like hit counters, guest books, form mail programs, message boards, and other programs that enable one website to perform commonly desired functions. Most CGI scripts are written in common programming languages like Perl, PHP or ASP.

Thus one should take care and keep all the above points in mind while selecting a web host.

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08 Jul 09 Basic Concepts of Web Hosts

The one who wants to enter in this web world and desires for a long time survival, then he/she should be familiar with each and every terminology used in this field. If user considers all the important factors before choosing a hosting plan then only he/she will be able to have a successful future in this world .User should not choose any of the plan, rather he/she should opt the best and most suitable one and this can only be made possible by fetching more and more informations and also by studying properly all the requirements. New comers should start from the basics .They should learn the meaning of each and every term used and also in addition those factors that can affect his/her selection.

Web Host

Web host refers to a computer connected to the internet. Web host can also be termed as ‘web server’. The computer that is playing the role of the web server needs to be more powerful than normal PCs and the function of this web server is to serve up websites.

The website content of the user will remain will on this computer, so as the people who are surfing on the internet can get a way to access his/her website.

There can be three main categories in which the web host can be classified based on the economic factor and common features:

1. Free Hosts:

The users who are not professional but are making website only as a hobby then for them free hosting can be a good option. In free hosting space, bandwidth and other features provided are very limited. With free web hosting one can not only make his/her website successful but is also suitable for personal websites or for temporary usage. Generally free hosting enforces pop-up, text or banner ads. Reliability, best performance and customer support lacks in case of free hosting as well. When a user registers for a free host then the word free host gets added with the user’s domain name that gives an adverse effect in the eye of the visitors.

2. Shared Hosts:

The next type of the web hosting to be discussed is shared hosting. This hosting service is used by many of the web sites .This type of hosting service is Suitable for personal, small and medium businesses. This service can be used by paying $1 to $25 per month. The features provided by this service vary from very limited space/bandwidth to semi-dedicated servers. The users host their website by this type of hosting service and it has its own top level domain facility. No doubt that shared web hosting is quite better than free hosting but still it does not provide 100% satisfactory services. In case of shared hosting one server is shared by the number of websites so its performance and availability gets affected. More websites usually means less performance. If less number of websites are hosted by one server then it will be more expensive, but in this case there are more chances of reliability. There are many companies allowing customers to host multiple websites with different domains under a single account.

3. Dedicated Hosts:

The next type of hosting is dedicated hosting. This type of hosting is most reliable hosting. In this type of hosting a full server is dedicated to a single customer. Generally this type of hosting is used by large businesses, professionals and very active websites dealing with thousands of visitors daily. The customers having dedicated hosting can have their total control over the server as well as able to create as many websites as they like. Customers can run their own hosting company on a rented dedicated server. Payment module is mentioned according to specifications and services provided with the server, which varies from $100 up to about $800 dollars per month.

4. Collocated Hosts:

Now the other type of hosting service to be discussed is collocated hosting. This service is very much similar to dedicated hosting. The difference between collocated hosting and dedicated hosting is that in collocated hosting the customer owns the server hardware instead of renting it. In this service the server will be placed in provider’s data center. This service is more expensive than dedicated hosting.

5. Reseller Hosts:

In reseller hosting the providers offers web server storage to their customers, and resells the web server storage to them. Generally providers offer resellers a discount price.

6. Other Hosts:

Including the above type of hosts there are also many other hosts such as email hosts, media hosts, data hosts, etc but these hosts will not be discussed in this article.

Domain Name

Domain name is the name which shows the place where one’s website is located. The actual address of the website is a set of numbers. Each and every web server has its own unique address. Domain name indicates the real addresses of every websites. One can easily remember the domain name of any of the website. Remembering domain name is easier than recalling the IP addresses.

Space / Storage

Space is one of the services provided by the web host. It plays a very important role in the website development. It happens many times that the customer requires more space but the host fails to provide it, so customer should be very careful while choosing the web host. Storage is the amount of web server’s disk space available for customer’s website files, images and databases. Space can be according to the requirement; it can be as small as 5MB in some free hosts and as big as 300GB for some dedicated servers. Earlier prices of the space were very high but prices reduced significantly during the last few years. The hosting plans offering 3GB of space for less than $10 a month can be easily available.

Bandwidth

Bandwidth can be defined as the amount of data transferred from web server to clients’ internet browsers. When ever a person outlook a page the data is transmitted from the server to that person’ PC. If any one is having audio, video and images in his/her website then the bandwidth consumed is more in comparison of the website having only text contents. The bandwidth available in free hosting can be as low as 100MB per month where as in some dedicated servers the bandwidth available is as high as 2000GB a month. The customers who don’t want to pay more for bandwidth can easily find hosting plans offering 75GB of monthly data transfer for less than $10.

Server Type

Generally server means the operating system than runs the web server. Some common types are Windows, Linux and UNIX. Server type refers the server side scripting and database types. The difference between Windows server and Linux/UNIX is that Windows runs ASP and ASP.NET with Access or SQL Server databases where as Linux/UNIX servers usually runs CGI, PHP or JSP with MySQL or Oracle databases. The other difference is that Windows servers are more expensive than Linux/UNIX servers.

Databases

As server type is discussed earlier also, we are able to know that there are different types of databases available. The mostly used is MySQL as it is open source GPL (free) software and can serve a lot of online applications’ requirements such as forums, content management, mailing lists, etc. MySQL, rather its features are limited. MySQL is sufficient for small concern but it is not powerful for the complicated large business sites. Large business requires more powerful databases such as Oracle or SQL Server.

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Server Side Scripting

Usually the new comers prefer to use PHP as server side scripting. The reason behind this is that there are hundreds of open source (GPL) PHP scripts that are able to fulfill the webmaster’s requirements. However PHP also has some limitations in features required by advanced websites same as in the case of MySQL, due to this limitation some professional web developers prefer to use ASP.NET or JSP. Some other developers still prefer to use Cold Fusion, CGI, ASP or PERL.

Email

Now the next very important aspect to be talked about is Email. At present no one can move further in this computer world with having his/her Email account. The one who is planning to do any kind of activity through computer such as to run a business or to provide any kind of service, then the first thing he/she need to do is to open an Email account. There are many hosting plans that include the feature of having some email accounts with customer’s domain. The availability of number and size of email accounts totally depends on the hosting plan one opted. Generally this feature is not included in free hosting. Small plans provide only about 10 accounts where as big plans do not have the limited number. Usually those email accounts are web based and accessible through POP3 clients as well.

File Transfer Protocol (FTP)

The other service is FTP. File Transfer Protocol is a usual way of transferring files across the Internet. Most of the webmasters used to upload and download their websites contents through FTP. The process of uploading or downloading is performed by using FTP client software. Webmasters require FTP username and password so as to access their web server. There are any hosts who use to provide more than one FTP account to their customers as per their requirement. Rather FTP is unspecified; it is not advisable as per the security reasons.

Control Panel

Control panel is the service available by many of the web hosting companies to their customers. It is a web based application that helps in managing websites. Some important functions performed by the control panel are that it used to manage email accounts, providing statistics, managing FTP accounts, managing domains and sub-domains and managing databases. The control panel application that is mostly used by the user is cPanel. There are many companies who use to develop their own control panel application.

Uptime

Now after having all the services, the thing of concern which remains is how the user keeps his/her website uptime most of the time. If anyone is having a website with excellent features but it remains down most of the time it will be of no use, as when ever the visitors visit his/her website and found it down then later on they will think twice before visiting it. In result he/she will suffer the loss of visitors. Uptime is very important feature of web hosts and that is usually measured in percentage. If a server remains down near about 30 minutes a day will have an uptime percentage of about 99.98%, which is acceptable for most small to medium business websites. If any of the business website is not having at least this percentage of uptime then that website is not suitable for a business website. Mission critical sites cannot tolerate frequent outages, thus they may use web monitoring services to notify web administrators immediately when an outage happens.

Price

Finally the factor left is price. In this option also there is a great variability found like for example customer is having option to choose between the prices ranging from 0 to $1000 per month. For most personal, small and medium websites the total amount of cost involved is just $15 per month. Thus its not at all advisable for business website owners to select very cheap plans let say less than $5 because this price can lead to huge cost indirectly afterwards.

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