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Web Hosting - FTP and Other File Transfer Tools
Anything related to the Internet or computers is bound to introduce technical issues pretty soon. One of the earliest that novice web site owners encounter is FTP, which is an acronym for File Transfer Protocol. Seeing it spelled out, it's easy to see why those in the know quickly move to speaking in short hand.
The reason web site owners soon will (or need to) become familiar with FTP is obvious to anyone who has built a site on a remote server. You have to have some way of getting the files to the remote computer and FTP is one of the most common tools. It's also one of the simplest and most efficient.
FTP is composed of two parts: the client software and the server software. It's similar, in a way, to talking to someone on the phone who writes down everything you say. You (the client) make a request ('transfer this file to the server') and the listener (the server) takes the request and acts on it.
That request to copy a file from a local computer to the remote one is carried out (often 'under the covers') by a PUT command, as in PUT this there. You create the web page (in the form of a file) and then PUT the file on the server. To move a file in the opposite direction, from the remote server to your local computer, your client software issues a GET command.
Many FTP clients have graphical interfaces, similar to Windows Explorer, that allow you to drag-and-drop or otherwise copy the file without ever seeing the actual commands that carry it out. But it's helpful sometimes to know what goes on underneath. In tricky cases it can be an advantage to use a command line interface (in Windows, the 'DOS box', with a similar interface familiar to most Linux users).
Knowing the commands and being able to use them in the command line form can sometimes help you diagnose what is going on when the graphical tools misbehave.
But FTP is not the only way to get a file from here to there. In fact, your browser moves files around from a remote computer to your local one all the time. In most cases, when you type in or click on a URL, what happens under the covers is in essence a file transfer process. The web page is transferred from the web server to your local computer then displayed by the browser.
Alternatively, you can sometimes even email a web page/file from your local computer to the remote server, then use an email client on the server itself to get the file and put it in a folder. That requires that you have some form of access to the remote computer. But there are many ways of doing that, such as in-built utilities in the operating system or using commercial remote control programs.
Those alternatives can be helpful to know in cases where the FTP file transfer process is misbehaving. Having more than one way to accomplish the task helps you diagnose what might be going wrong. It also helps you get the job done when the usual tools aren't cooperating.
The more you learn about these sometimes puzzling acronyms, the easier you can accomplish your own goals.
How to Work the Internet to your Advantage in a Job Search Are you on the hunt for the perfect job? If you need a new job and you are spending every day running out and buying a paper and flipping through the classified ads, you are way out of date. The newest way to find a job is to use the Internet in your job search. After all, nearly everything else people do these days is done online, so why not looking for your next job. The best part is that the Internet is much better than the classified ads in your local paper when it comes to finding a job you love. When you search for a job online, you have a world of employment opportunities right at your fingertips. There are many ways you start your search for jobs online. There are several websites that are dedicated just to job hunting. On these kinds of sites, you can search through a database of literally thousands and thousands of jobs until you find some that appeal to you. Most of these websites let you search for jobs using many different criteria, from job location to job field to starting salary to jobs that let you work from home. These websites can be a wonderful way of getting a feel for what kind of jobs are out there and what the going rate of pay is for any job in any industry, and how that pay fluctuates regionally. In addition, these sites are also ideal if you are thinking of moving, and want to move to someplace you can find a job. If you don’t care where you move, you can look for cities where the job market is hot. If you know where you want to move, you can look for jobs in your desired city and get the inside track on the job market from no matter where you are. Additionally, on these job listings websites, you can upload your own resume to the site. That way, you can apply to jobs through the website with the click of a button, and potential employers can find you when they are looking for someone with your skills. Another way you can use the Internet to your advantage when you are hunting for a job is to build your own job hunting website. Create a website that showcases your resume and all of the work experience you have. You can set out your career objectives and show off any special skills you have. Having your own website is a great way to direct potential employers to where they can find more information about you and is a handy way of getting the message across about skills or achievements you have that may not be right for inclusion on your resume. If all of this sounds like casting the net a little too wide for your tastes, the good news is there are now local job listings websites in most towns. These websites work in much the same way was the larger job hunting websites, but they only list local jobs and only allow local workers to upload their information. Remember that the Internet cuts both ways when looking for a job. Just as you might Google a potential employer, so they may Google you. Be thoughtful about what you post about yourself on the Internet. If you don’t want your potential boss to know about that time you had too much to drink and passed out in your friend’s front lawn, don’t post the picture online. Likewise, be careful when blogging about political, religious or off-color topics. Almost anything you say online can be traced back to you, and may be used against you in a job hunt. Web Hosting - Databases, What Are They and Do You Need One? 'Database' is one of the most commonly used terms that one encounters in web site design. Yet, what they really are and whether they're essential is often not clear to novices. A database is a collection of organized data, stored in files that have a specific structure. It's that organization and structure that allows for easy and rapid storage and retrieval. The need for a database generally only arises when you have a certain amount of information and that information needs to have some structure. If you have a half-dozen names and addresses to store, a database is usually overkill. If you have a blob of data with no relationships between any of the items in that blob, maintaining a database is usually more trouble than it's worth. Maintain a database? Yes, like other complex systems a database, to be effective, needs to be designed properly at the outset then kept 'tuned' for good performance. The alternative is to gradually allow the database to become more and more disorganized. That leads to difficulty in use, poor speed of retrieval and more frequent failures. With MySQL, Access or MS SQL Server, the three most common choices of database product for web sites today, setting up a database is relatively simple. Even those with limited technical skill can get one up and running just by following some simple instructions. But some thought should be given to how you want the information organized, and to maintaining the system during its lifetime. Suppose you have a set of names, addresses, email addresses, products purchased, date purchased and amount. If you have only a few dozen records it matters very little how these pieces are arranged and related. A database usually isn't even warranted in this scenario. Once you have several thousand or more records, it matters a lot. Speed, the ease of expanding the set of attributes (like adding, say, product category), and other issues come into play. Even those with little technical expertise, but a willingness to exert logical thought and invest some time, can build a very robust database. Think about how you would organize a set of data (called 'tables'). Should Name, Address, and Product be in the same table? Or should the personal information be stored in one table and any product information (product, price, ...) in another? Some experimentation may be needed to get it right, but the choices have an impact on how easy the tables are to maintain. It also affects the speed with which programs can fetch old data and store the new. Having a database also introduces new maintenance issues for the server administrator, since backups usually need to be done differently. Recovering a failed database is usually more complicated than simply re-copying files from yesterday. Ask your hosting company what tools and skills they have for dealing with any database system you consider. It's true that introducing a database creates more complexity and the need for additional thought and administrative effort. At a certain level, professional expertise will be needed. But clearly the advantages outweigh the costs in many cases. Companies large and small eventually use databases to store and organize data. At some point, you may be fortunate enough to be one of them. |