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Web Hosting - Unix vs Windows-Based Hosting, Which Is Better?
An operating system functions largely out of sight, or at least is supposed to. It doesn't matter to non-geeks how a file gets stored, or how memory is used, or how simultaneous processes share the limited resources available on a computer. These are among the basic functions of any operating system.
Yet, you can find very passionate supporters - who offer very detailed lists of pros and cons - for every operating system. Why? Because, though the low-level functions of an operating system do their work out of sight, there are many other features that rise to visibility. Sometimes, they do so when they're not supposed to.
Weighing the pros and cons objectively could consume a book. But to select a web host operating system, a manageable level of considerations apply. They can be weighed even by those who don't know a processor queue from a pool cue.
Learning Curves
For most web site owners, administering the site/server is just overhead. It's not something they take pleasure in doing and they have plenty of other things to worry about. Many wouldn't know how and have no interest in learning (rightly so, given their priorities). Consequently, ease of administration is paramount for such people.
Whether a Unix-based site (usually Linux these days) is easier to administer than Windows depends on your current skill set and the type of tools and level of access the web hosting company provides. But in general Linux is more difficult to install and maintain than Windows and the learning curve is steeper.
FTP and Control Panels
Often, you don't have to care. For many, the operating system is fairly transparent. FTP file transfers to get a new web page up to a Windows server are very much like they are to a Linux-based site. The user/administrator simply doesn't see what's behind the curtain.
Many companies provide other utilities that completely mask any awareness of the operating system underneath. When that's the case, the web site owner has no reason to care, until or unless they need or want to go 'inside the black box'.
Performance
Performance issues can be relevant in selecting which operating system host type to choose. But for the most part, that aspect is outside the web site owner's control. Overall performance can be good or bad on either system, depending on many factors that the publisher will rarely see. The issue is a wash, as far as tipping the scales is concerned.
What is more likely to be seen by a web site owner, at some point in their (and their site's) development is the database product that can be used to store information.
Databases
Microsoft SQL Server is relatively simple to use, yet extremely powerful and can deliver great performance. But it doesn't run on Linux. At least, not without special software to emulate Windows, which usually kills performance. On the other hand, with a bit of time invested, MySQL isn't significantly more difficult to learn than MS SQL Server and there are many free installations. Cost may well outweigh other considerations for most on this issue.
Programming Languages
Last, but not least, there are differences in programming languages that can be (or at least typically are) used on Windows vs Unix. If you have programmers who are skilled in Visual Basic, ASP and other Microsoft technologies, then a Windows-based host will be your preferred choice. For Perl and PHP programmers, Linux is the more common platform of choice.
No single factor can push you to one versus the other operating system. And, in the long run, it isn't the primary consideration, unless you just enjoy playing with operating systems.
Web Hosting - Domain Name Changes and How They Affect You New domain names are registered all the time, and ones previously registered expired. Sometimes that's the result of simple neglect. The owner of the name chose not to renew his or her ownership, so the name became available for someone else to use. In rare cases, a highly original mind managed to think of a new one. In the other common scenarios, someone chose to just let it go or sell it. When you choose to change your domain name, there are actually two separate steps involved: releasing the old name, and adopting the new one. But, just as the postal system can have difficulty forwarding your letters when you change your personal name, changing your domain name brings certain difficulties. One of the most prominent is the fact that any name change requires a change to thousands of DNS Servers around the globe. DNS (Domain Name System) is the set of software/hardware components that allows domain names to map to IP addresses. IP addresses are what are actually used 'under the covers' when one computer communicates with another. Note that there isn't always a 1:1 correspondence between a name and an IP address. One IP address can serve multiple domain names and one domain name can have multiple IP addresses. For the sake of simplicity, we'll stick to the common case here. DNS servers around the world maintain internal databases that match the name to an IP address. Not all servers have all pairs of names/addresses. A series of complex routines allows a request to be forwarded when the particular DNS server doesn't have a needed record. When you acquire a domain name that used to be associated with a given IP address, the odds of you acquiring the same IP address are extremely low. In the unlikely case, for example, that you acquired the domain name yahoo.com, you would almost certainly not get the IP address that was matched with it (unless you bought the Yahoo! company). So, as a result of the change, the name/IP address pair is no longer what it was. A similar circumstance exists when you retain your IP address, but want to change the domain name associated with it. In either case, the pairing has changed. The catch is this: when the change takes place, those DNS databases are not all updated instantaneously around the world. Even apart from the limited speed with which computers and networks operate, (and neglecting the human factor if/when the change is made manually to more than one server) the reason is something called caching. In order to communicate efficiently, DNS servers are designed to assume that changes will be relatively rare. Just as with the postal system, you don't move your address or change your name every minute. Since that's true, in general, the name/IP address pair is cached. A cache is a set of stored information that is reused so that fresh information doesn't have to be communicated with every request for a web page or data. A chain of DNS servers pass requests to the last known address. There is usually more than one system between your computer and the server you want to communicate with. Most of the time, that's your current name/address. When you change the name, that pair is no longer valid. In order to propagate the new name/address pair (so the terminology goes), that cache has to be refreshed. Something similar happens when you establish an entirely new name. That name is first associated with an IP address and that pair has to be communicated to DNS servers around the world in order for you to be able to reach any one of them at random. But DNS servers don't do that until they are requested to do so by your action of asking for information from a remote server. Because of that, but chiefly because of caching, it can take quite a while for the new pair to become known around the Internet. Caches can expire and get refreshed in a few minutes or a few hours. It varies. That time can be as short as an hour or less, if the path between your computer and the web server is very simple and only one DNS server needs to be updated. Or, it can take up to 48 hours or more. Though the 'official' range is often given by registrars as 24-48 hours, the average is closer to about six hours. But that's an average. The actual time in any given case can (and does) vary widely. In the meantime, a number of effects can occur. The most obvious is that, since the name/IP address pair can't be resolved properly, you don't reach the server you want. Your browser points to the old one (in the rare case it's still accessible by that name and address), or it simply reports there's no such name at that address. So, when registering a new name or buying an old one, you should establish the site, but not advertise it for at least a couple of days. Better to wait to get visitors than to turn them off by being 'not at home' when they call. International Software Copyright International Software Agreement is a Matter of National Security Is there one governing law concerning international software copyright? According to agreements by the World Trade Organization (WTO) and the Trade-Related Aspects of Intellectual Property Rights (TRIP) any software written has an automatic copyright. This is a pretty conclusive consensus as far as an international copyright goes. The short answer would have been yes, but this was so much more informative. An international software copyright should not however be confused with a patent. Copyrights provide creators with the ability to prevent others from directly copying the code involved. A patent can actually limit the use of the software. Because of this, I'm sure you'll understand that patents are a hotly debated topic when it comes to software. The biggest thing to know about international software copyright is that your code is essentially protected the moment you create it. This is, unless you have some kind of contract through your employer that all code created by your belongs to them (these cases have been known to happen and provide excellent incentives for employees to always read the fine print). The problem that many companies are running into when it comes to enforcing international software copyright is that computers are not permanent fixtures in a company. Computers are rather disposable hardware when it comes to keeping up with evolving technologies and software needs to be updated when new computers are purchased. Rather than purchasing new copies of software when the computers are replaced companies are notorious for reusing old copies of the software. They are also famous for replacing 10 computers with the software installed with 40 new computers and installing the 10 copies of the software on all 40 computers. This is not in keeping with international software copyright. This is stealing and you'd be surprised at some of the good upstanding companies that do this on a regular basis. There really are no major differences between traditional policies for American copyright and international software copyright which makes legal issues, troubles, and woes that much easier to deal with. By having a unified international front thee are ramifications and legal actions that can be taken around the world without going through a great deal of international red tape. If you think dealing with the American government is bad, you should see how much fun it is to deal with the American government and another government for a legal action. The agreement between nations for international software copyright is probably one of the soundest possible decisions that can be made as military secrets of all governments have some degree of software in order to keep them operating. While it isn't quite as simplistic as stealing a computer program to unlock the defense secrets of a nation, having access to certain source codes could be problematic in the absolute best-case scenario. Keeping secrets isn't the only thing that makes this agreement so valuable, it is however, one of the most vital. Perhaps one of the greatest things to come about as the result of the international agreement to protect and honor software copyright is the peace of mind that is available to software developers in America and other technologically advanced countries that their source code won't be allowed to be stolen and used against them at a later date by someone in a developing nation with cheap labor and other overhead costs that American corporations simply cannot compete with. This could be devastating to the economies of technological societies if it were allowed to happen and the agreement for an international software copyright prevents that from being allowed to occur. |