Welcome to esiq.org
|
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.
Web Hosting - DNS, How The Internet Keeps Track of Names The way computers communicate is, in a way, very similar to something very familiar: the postal system that delivers letters and packages. Here's how... The Internet is just what the name suggests, a large inter-connected set of networks. But those networks are pointless without the one part that forms what is called their 'end-nodes', otherwise known as computers. Those computers often need to share information because the people who use them want to share information. But, in a system where there are millions of separate computers, how can you enable them all to communicate? One very important feature of that solution is performed by something called DNS, the Domain Name System. Every part of a network that is going to send or receive information is assigned an IP address. That's a numeric identifier that uniquely specifies a particular 'node', such as a computer, a router that directs traffic or other component. They look like this: 209.131.36.158 But those numbers are more difficult for people to remember and work with. They also aren't very attractive from a marketing perspective. So, a naming system was layered on top of some of them, mostly the computers involved, though routers have names, too. But once you have a system that associates a unique IP address to a given name, you need some way of keeping track of all of them. That's carried out by several different pieces of the system: Name Registrars, DNS Servers and other components. The Name Registrars, overseen by IANA (Internet Assigned Numbers Authority) and other international bodies, provide and keep track of domain names. When you register with GoDaddy or any of a hundred other intermediate companies, ultimately that information makes its way into a number of specialized databases stored inside DNS Servers. A DNS Server is the hardware and/or software that tracks and forwards the IP Address/Domain Name pair from one place to the next. In many cases, there are a number of them between your browser and the remote computer you want to share information with. Suppose you request information from, say, Yahoo's site by clicking on a link on their site. DNS resolves (translates) the name of WHO IS making the request and OF WHOM, to addresses, then passes the request through the network to the requested IP address. The requested data is then passed back through the mesh of network components to your computer and displayed in your browser. Whether the communication is between a desktop computer and a server somewhere, or between one server and another, the process is essentially the same. DNS servers translate names into IP addresses and the requests for data are forwarded on. In some cases those DNS servers are part of a specialized network computer whose sole job is to do the translation and forwarding. In other cases the DNS software may reside on a server that also houses a database of general data, or stores email, or performs other functions. But however complicated the chain or the parts, the basic process is simple. Translate the name to an address, just as the postal system does. Whether international or local, your name is associated with an address, and the deliveries are made to the address, then forwarded to a particular name. Achieving a Better Family and Work Balance Makes for Better Job Performance Are you constantly working after hours and weekends at the office? Are beginning to forget what your family even looks like? Many people find themselves in this predicament. Work seems to get more and more demanding with every passing day, and to stay on top of your game at work, you feel like you need to put in long hours. The flipside to this is that of course when you are at the office, you are away from home – away from family dinners, play time and your kids’ sporting events or school plays. You may feel like your hands are tied – that no matter how much you want to be more involved with your family life, you have to keep working as hard as ever to make sure your family is provided for in the long run. The truth is, however, that you may be doing yourself a disservice on both fronts. Studies have shown time and again that well rested workers with well balanced lives are more productive in the time they do spend working. In the end, the best way to be a stand out worker at the office is to be fully involved and present in your family live. But wait, you say, “I’m working practically around the clock now, and everything still isn’t getting done.” However, maybe the problem isn’t that you aren’t working hard enough. Maybe the problem instead is that you aren’t working smart enough. Think about the way you spend you working day. Are you taking on more responsibility than you need to, instead of delegating tasks to others? Are you spending a lot of time chatting in the break room when you run for a cup of coffee? Are you procrastinating so that big projects require you to work all-nighters instead of spreading out the work? Keep a journal of all of your activities at work for a few days. You might be surprised to see how you are really spending your time and in what areas you could make improvements. Simply staying on task and delegating effectively could get you home in time for dinner. When you have done everything you can to make your work habits as productive as possible, it is time to turn to other ways to balance your work life and your family life. Rule number one is the hardest one for most people to follow you – draw clear lines of distinction between work time and family time. Family time isn’t really family time if you are constantly on your cell phone making and receiving work calls or if you are on your laptop for the entire family vacation. When you’re working – work. When you’re with your family – concentrate on them. The time you spend actually taking a breather from work will recharge your batteries and make you a better worker when work time rolls around again. Next, you have to evaluate your priorities. Maybe working around the clock will help you make partner faster, but at what cost? Decide if seeing your daughter’s soccer game every week is more important to you than moving up the corporate ladder quickly, and make adjustments in your schedule appropriately. There is no right or wrong answer, but deciding where you priorities lie will make scheduling easier for you. With your priorities in mind, see what work options are available to you to help you meet them. If you want more time with the kids, see if your office offers flex time or part time hours to help you meet your family commitments. Last but not least, don’t feel guilty about taking time with your family. Not only is this time important to your family, you can rest assured that the time out from the office stress will make you more productive when you return to work. |