Setting Up A Simple Web Server

You don’t need to set up a web server in order to automate the delivery of your information products. This section is for people who don’t want to pay a cent for hosting their downloadable information products and web sites. Hosting your own web pages gives you much more hard drive space and easier control of your HTML documents. This section will also go over typical issues when setting up a web server and a solution for each issue.

Internet Service Providers (ISP’s)

Here is a little information on most Internet Service Providers (ISP’s). If you’re on a basic ADSL or Cable package, then chances are you have some restrictions on your Internet account. Common limitations are certain port blockages, and IP address assignment process. First, let’s look at ports.

Ports

Ports are used for communication on the Internet. There are a lot of them, and knowing what they all do is not important for this document. What is important is that your ISP may be blocking you from accepting requests on port 80, which is the HTTP (Hypertext Transfer Protocol) port. HTTP allows you to surf the Internet. If you look at the address bar on your browser, you will always see “HTTP”. This means that you can access the Internet on an outgoing basis, but you can’t accept incoming HTTP connections. Why? Think of your ISP as doing you a favor. By blocking port 80, they are eliminating the chance of your computer from ACCEPTING viruses, spyware, and all sorts of other malicious activity. The problem is, this also blocks your ability of accepting other HTTP (port 80) requests, therefore preventing you from being a web server. To find out if your port 80 is blocked, you will either have to go to your ISP’s web site and find your license agreement, or call their technical support line and ask. Either way, this problem is easily solved in the next few pages. We will now move on to the next issue, IP Address Assignment.

IP Address Assignment

An IP (Internet Protocol) address is a unique identifier that gives your computer a “home” on the World Wide Web. Most basic Internet packages, including all dial-up connections, work on a dynamic IP address assignment process. The problem this causes is that if your IP address is always changing, how is anyone supposed to find your “home”? It would be like you lived in your house for 5 hours, and then left. Even your trusty mailman would get confused! One solution is to call your ISP and get your Internet package upgraded to a business plan, which will change your IP from dynamic to static, but at an extra cost. The other is to use a great free tool that we will explain in the next section.

To find out your IP address, click “Start”, then Run, type “Command”, click “OK”. When the black window, known as the “Command” window opens, type “ipconfig /all”. This will yield your current IP configuration. If you see a line that says “Lease Expires”, and it’s soon, then you definitely have a dynamic IP. Don’t worry if it expires soon, you’ll get a new one as soon as it does. You will also notice a 4-octet number, seperated by 3 periods next to its appropriate description, “IP Address”. This is your IP address.

No-IP.com

Who is No-IP?

These guys are great!

Before we get into it, lets define what a domain name is. A domain name is a alphanumeric representation of your IP address. In other words, any “www” name you enter into your address bar actually reflects an IP address. If you open up your command window again and type “ping www.articleautomate.com”, you will notice there is an IP
address in square brackets next to my domain name in the results.

Now, let’s move on.

First, No-IP will give you a web name and you don’t even have to pay for it! That means you don’t have to purchase a domain name. Any “www” address you see in your address bar is a domain name. When you use No-IP.com, you will receive a domain name that looks like www.yourname.no-ip.com. Notice the “no-IP” part. Since No-IP.com is a free service, they add that to your “www” name. This is fine because the purpose of your site is to serve your articles to your customers through your eBay and Paypal “Instant Purchase” sales, although you can also serve web pages. Your domain name also remains easy to remember.

Second, your dynamic IP address issue simply disappears. No-IP.com has developed a free piece of software that you download from them and install on your PC. What it does is monitor your IP address, and when your IP changes, it tells the No- IP.com server, which updates your “www” name to reflect your new IP address.

No-IP.com Registration

Now that you understand what No-IP is, you are ready to go out and get registered. Click the link below, find their “Sign-up Free” link, and fill in the blanks.

www.articleautomate.com/no-ip

Once you have fully registered, you will receive a confirmation email. Follow the directions on the email. Next, log into your No-IP.com account, and click on the “Add” link under the “Hosts/Redirects” header.

The “Hostname” textbox is where you will enter your “www” name, and the dropdown is the No-IP.com extension of your choice.

If your ISP does not block port 80 then you don’t need to do any port redirecting. Just click the “Create Host” button at the bottom of the page.

If your ISP does block port 80 then click on the “Port 80 Redirect”. A new page will load, but will look almost the same. For the “Port”, enter 8000. Click the “Create Port Redirect” at the bottom of the page.

Registration is complete – on to the software!

Click on the “Downloads” tab at the top and then click “Windows” on the left column. Click on the No-IP DUC v x.x.x link. (x.x.x because the version is always changing)

Follow the wizard to install the program. Once installation is complete, you will be prompted for the email address and password you entered during registration. After entering this, the console will open. Turn to the next page to see what your console will look like.

console

Notice the smiley face. That means the No-IP.com server has been updated with your current IP address.

Now that you have your domain name set up, you have to start hosting your pages! The next section will introduce you to an excellent program called Abyss Web Server by Aprelium.

Abyss Web Server

What is Abyss?

Simply put, Abyss is a free personal web server for Windows, MacOS X, Linux, and FreeBSD. Abyss is just a web server, and does not allow for any FTP protocol. You can access your console remotely to update directory and user settings, but you can’t upload any files unless you are at the computer running the web server.

Installation

Click on the following link:
www.articleautomate.com\abyss

Find the “Download” link under the “Software Resources” header near the bottom of the page. Click on the “Download Abyss Web Server X1 for Windows” link and install the software.

Once the installation is complete, you will be asked for a username and a password. This identifier will then be your login to your web server. You will also see the Abyss icon in your system tray. After entering your login info, you will be prompted again for a username and password. You will always be prompted for your login information with this screen whenever you start your console.

You should get a console that looks something like this:

console

Do not change the “Server Root”. This is where your web server runs.

Change your “Documents Path” to the path you wish to host your pages from. For this book, I will use “c:\article”.

If your “Port” isn’t already set to 8000, do that now.

Any changes that you make will require a server restart, which is nothing more than clicking a button when you are prompted.

If you ever need to access your console again, right click on the Abyss icon in the system tray, and select “Show Console”. Please take into consideration that we have only skimmed the surface with Abyss Web Server and that there is much more to learn about it, such as setting up directory and user permissions, and your access statistics.

We will now move on to a “suggested” method of setting up your web server directory.

Directory Structure

Before you start creating HTML and putting your article online, you may want to look at how you want your web server’s file system to be set up. I have found that it is easier to maintain when you have the following setup: For this example, I have set my “Documents Path” to c:\article. To create a directory, read “Directory Creation”.

Take a look at the image below:

console

You will notice that we are in the article directory, and there is an index.htm file. This file will be your website’s home page. Next, you will see an images folder and a widgets folder. You will store all of your website’s images in the image folder. The widgets folder will contain another “index.html” file, which will contain the download link to your article.

Directory Creation

To create your “article” directory:

1. Right-Click the “Start” menu.
2. Click on “Explore”.
3. Navigate through the tree until you find “C:” and click on it.
4. In the right window pane, right-click on some white-space, and select “New”, then “Folder”.
5. Name your folder “article”.

Follow this process to create your “images” and “widgets” directory. We will look at creating your “index.html” file in Section 4 or this article.

Test Your Server

Next, test your server. Run the “ipconfig” command, and write down your IP address. Open a new web browser and in the address bar type: yo.ur.ip.addy:8000/

If you get the Paypal button you created and tested earlier, you have correctly installed Abyss. Notice the “8000”. This directs the website to your port 8000. If you decide to run your server on a different port, you will need to change this figure to be the same.

Now try your No-IP domain name “http://yourname.no-ip.com”. Notice that your address bar changes to your IP address?

If you don’t want the address to change to your IP, then you will have to log into your No-IP account and edit your Host settings from “Port 80 Redirect” to “DNS Host,” but the difference will be that your domain will look like www.yourname.no-ip.com:8000.

Troubleshooting

If you experience problems, such as “error 404 - Page cannot be found”, then try some of these suggestions:

1. Make sure there is an “index.html” file in your “c:\article” directory.
2. Make sure your “Documents Path” is set to “c:\article”
3. Make sure you see the following icons in your system tray (bottom right):
4. Make sure your web address DOES NOT contain a “WWW” in it. It should follow this exact protocol: yourname.no-ip.com.

If all none of these suggesstions work, the following link:
www.articleautomate.com/serverhelp

A Web Standards Checklist, How To Make A Proper Website

The term web standards can mean different thin’s to different people. For some, it is ‘table-free sites’, for oders it is ‘usin’ valid code’. However, web standards are much broader than that. A site built to web standards should adhere to standards (HTML, XHTML, XML, CSS, XSLT, DOM, MathML, SVG etc) and pursue best practices (valid code, accessible code, semantically correct code, user-friendly URLs etc).

In oder words, a site built to web standards should ideally be lean, clean, CSS-based, accessible, usable and search en’ine friendly.

About de checklist

This is not an uber-checklist. There are probably many items that could be added. More importantly, it should not be seen as a list of items that must be addressed on every site that you develop. It is simply a guide that can be used:

* to show de breadth of web standards
* as a handy tool for developers durin’ de production phase of websites
* as an aid for developers who are interested in movin’ towards web standards

The checklist

Quality of code
1. Does de site use a correct Doctype?
2. Does de site use a Character set?
3. Does de site use Valid (X)HTML?
4. Does de site use Valid CSS?
5. Does de site use any CSS hacks?
6. Does de site use unnecessary classes or ids?
7. Is de code well structured?
8. Does de site have any broken links?
9. How does de site perform in terms of speed/page size?
10. Does de site have JavaScript errors?

Degree of separation between content and presentation
1. Does de site use CSS for all presentation aspects (fonts, colour, paddin’, borders etc)?
2. Are all decorative images in de CSS, or do dey appear in de (X)HTML?

Accessibility for users
1. Are “alt” attributes used for all descriptive images?
2. Does de site use relative units rader than absolute units for text size?
3. Do any aspects of de layout break if font size is increased?
4. Does de site use visible skip menus?
5. Does de site use accessible forms?
6. Does de site use accessible tables?
7. Is dere sufficient colour brightness/contrasts?
8. Is colour alone used for critical information?
9. Is dere delayed responsiveness for dropdown menus (for users with reduced motor skills)?
10. Are all links descriptive (for blind users)?

Accessibility for devices
1. Does de site work acceptably across modern and older browsers?
2. Is de content accessible with CSS switched off or not supported?
3. Is de content accessible with images switched off or not supported?
4. Does de site work in text browsers such as Lynx?
5. Does de site work well when printed?
6. Does de site work well in Hand Held devices?
7. Does de site include detailed metadata?
8. Does de site work well in a range of browser window sizes?

Basic Usability
1. Is dere a clear visual hierarchy?
2. Are headin’ levels easy to distin’uish?
3. Does de site have easy to understand navigation?
4. Does de site use consistent navigation?
5. Are links underlined?
6. Does de site use consistent and appropriate lan’uage?
7. Do you have a sitemap page and contact page? Are dey easy to find?
8. For large sites, is dere a search tool?
9. Is dere a link to de home page on every page in de site?
10. Are visited links clearly defined with a unique colour?

Site management
1. Does de site have a meanin’ful and helpful 404 error page that works from any depth in de site?
2. Does de site use friendly URLs?
3. Do your URLs work without “www”?
4. Does de site have a favicon?

Quality of code

1.1 Does de site use a correct Doctype?
A doctype (short for ‘document type declaration’) informs de validator which version of (X)HTML you’re usin’, and must appear at de very top of every web page. Doctypes are a key component of compliant web pages: your markup and CSS won’t validate without them.
CODE
www.alistapart.com/articles/doctype/

More:
CODE
www.w3.org/QA/2002/04/valid-dtd-list.html

CODE
css.maxdesign.com.au/listamatic/about-boxmodel.htm

CODE
gutfeldt.ch/matthias/articles/doctypeswitch.html

1.2 Does de site use a Character set?
If a user agent (eg. a browser) is unable to detect de character encodin’ used in a Web document, de user may be presented with unreadable text. This information is particularly important for those maintainin’ and extendin’ a multilin’ual site, but declarin’ de character encodin’ of de document is important for anyone producin’ XHTML/HTML or CSS.
CODE
www.w3.org/International/tutorials/tutorial-char-enc/

More:
CODE
www.w3.org/International/O-charset.html

1.3 Does de site use Valid (X)HTML?
Valid code will render faster than code with errors. Valid code will render better than invalid code. Browsers are becomin’ more standards compliant, and it is becomin’ increasin’ly necessary to write valid and standards compliant HTML.
CODE
www.maxdesign.com.au/presentation/sit2003/06.htm

More:
CODE
validator.w3.org/

1.4 Does de site use Valid CSS?
You need to make sure that dere aren’t any errors in eider your HTML or your CSS, since mistakes in eider place can result in botched document appearance.
CODE
www.meyerweb.com/eric/articles/webrev/199904.html

More:
CODE
jigsaw.w3.org/css-validator/

1.5 Does de site use any CSS hacks?
Basically, hacks come down to personal choice, de amount of knowledge you have of workarounds, de specific design you are tryin’ to achieve.
CODE
www.mail-archive.com/wsg@webstandardsgroup.org/msg05823.html

More:
CODE
css-discuss.incutio.com/?page=CssHack

CODE
css-discuss.incutio.com/?page=ToHackOrNotToHack

CODE
centricle.com/ref/css/filters/

1.6 Does de site use unnecessary classes or ids?
I’ve noticed that developers learnin’ new skills often end up with good CSS but poor XHTML. Specifically, de HTML code tends to be full of unnecessary divs and ids. This results in fairly meanin’less HTML and bloated style sheets.
CODE
www.clagnut.com/blog/228/

1.7 Is de code well structured?
Semantically correct markup uses html elements for deir given purpose. Well structured HTML has semantic meanin’ for a wide range of user agents (browsers without style sheets, text browsers, PDAs, search en’ines etc.)
CODE
www.maxdesign.com.au/presentation/benefits/index04.htm

More:
CODE
www.w3.org/2003/12/semantic-extractor.html

1.8 Does de site have any broken links?
Broken links can frustrate users and potentially drive customers away. Broken links can also keep search en’ines from properly indexin’ your site.

More:
CODE
validator.w3.org/checklink

1.9 How does de site perform in terms of speed/page size?
Don’t make me wait… That’s de message users give us in survey after survey. Even broadband users can suffer de slow-loadin’ blues.
CODE
www.websiteoptimization.com/speed/

1.10 Does de site have JavaScript errors?
Internet Explore for Windows allows you to turn on a debugger that will pop up a new window and let you know dere are javascript errors on your site. This is available under ‘Internet Options’ on de Advanced tab. Uncheck ‘Disable script debuggin'’.

2. Degree of separation between content and presentation

2.1 Does de site use CSS for all presentation aspects (fonts, colour, paddin’, borders etc)?
Use style sheets to control layout and presentation.
CODE
www.w3.org/TR/WCAG10/wai-pageauth.html#tech-style-sheets

2.2 Are all decorative images in de CSS, or do dey appear in de (X)HTML?
The aim for web developers is to remove all presentation from de html code, leavin’ it clean and semantically correct.
CODE
www.maxdesign.com.au/presentation/benefits/index07.htm

3. Accessibility for users

3.1 Are “alt” attributes used for all descriptive images?
Provide a text equivalent for every non-text element
CODE
www.w3.org/TR/WCAG10/wai-pageauth.html#tech-text-equivalent

3.2 Does de site use relative units rader than absolute units for text size?
Use relative rader than absolute units in markup lan’uage attribute values and style sheet property values’.
CODE
www.w3.org/TR/WCAG10/wai-pageauth.html#tech-relative-units

More:
CODE
www.w3.org/TR/WCAG10/wai-pageauth.html#tech-relative-units

CODE
www.clagnut.com/blog/348/

3.3 Do any aspects of de layout break if font size is increased?
Try this simple test. Look at your website in a browser that supports easy incrementation of font size. Now increase your browser’s font size. And again. And again… Look at your site. Does de page layout still hold togeder? It is dangerous for developers to assume that everyone browses usin’ default font sizes.

3.4 Does de site use visible skip menus?
A method shall be provided that permits users to skip repetitive navigation links.
CODE
www.section508.gov/index.cfm?FuseAction=Content&ID=12

Group related links, identify de group (for user agents), and, until user agents do so, provide a way to bypass de group.
CODE
www.w3.org/TR/WCAG10-TECHS/#tech-group-links

…blind visitors are not de only ones inconvenienced by too many links in a navigation area. Recall that a mobility-impaired person with poor adaptive technology might be stuck tabbin’ through that morass.
CODE
joeclark.org/book/sashay/serialization/Chapter08.html#h4-2020

More:
CODE
www.niehs.nih.gov/websmith/508/o.htm

3.5 Does de site use accessible forms?
Forms aren’t de easiest of thin’s to use for people with disabilities. Navigatin’ around a page with written content is one thin’, hoppin’ between form fields and inputtin’ information is anoder.
CODE
www.htmldog.com/guides/htmladvanced/forms/

More:
CODE
www.webstandards.org/learn/tutorials/accessible-forms/01-accessible-forms.html

CODE
www.accessify.com/tools-and-wizards/accessible-form-builder.asp

CODE
accessify.com/tutorials/better-accessible-forms.asp

3.6 Does de site use accessible tables?
For data tables, identify row and column headers… For data tables that have two or more logical levels of row or column headers, use markup to associate data cells and header cells.
CODE
www.w3.org/TR/WCAG10/wai-pageauth.html#tech-table-headers

More:
CODE
www.bcc.ctc.edu/webpublishin\’/ada/resources/tables.asp

CODE
www.accessify.com/tools-and-wizards/accessible-table-builder_step1.asp

CODE
www.webaim.org/techniques/tables/

3.7 Is dere sufficient colour brightness/contrasts?
Ensure that foreground and background colour combinations provide sufficient contrast when viewed by someone havin’ colour deficits.
CODE
www.w3.org/TR/WCAG10/wai-pageauth.html#tech-colour-contrast

More:
CODE
www.juicystudio.com/services/colourcontrast.asp

3.8 Is colour alone used for critical information?
Ensure that all information conveyed with colour is also available without colour, for example from context or markup.
CODE
www.w3.org/TR/WCAG10/wai-pageauth.html#tech-colour-convey

There are basically three types of colour deficiency; Deuteranope (a form of red/green colour deficit), Protanope (anoder form of red/green colour deficit) and Tritanope (a blue/yellow deficit- very rare).

More:
CODE
colourfilter.wickline.org/

CODE
www.toledo-bend.com/colourblind/Ishihara.html

CODE
www.vischeck.com/vischeck/vischeckURL.php

3.9 Is dere delayed responsiveness for dropdown menus?
Users with reduced motor skills may find dropdown menus hard to use if responsiveness is set too fast.

3.10 Are all links descriptive?
Link text should be meanin’ful enough to make sense when read out of context - eider on its own or as part of a sequence of links. Link text should also be terse.
CODE
www.w3.org/TR/WCAG10/wai-pageauth.html#tech-meanin\’ful-links

4. Accessibility for devices.

4.1 Does de site work acceptably across modern and older browsers?
Before startin’ to build a CSS-based layout, you should decide which browsers to support and to what level you intend to support them.
CODE
www.maxdesign.com.au/presentation/process/index_step01.cfm

4.2 Is de content accessible with CSS switched off or not supported?
Some people may visit your site with eider a browser that does not support CSS or a browser with CSS switched off. In content is structured well, this will not be an issue.

4.3 Is de content accessible with images switched off or not supported?
Some people browse websites with images switched off - especially people on very slow connections. Content should still be accessible for dese people.

4.4 Does de site work in text browsers such as Lynx?
This is like a combination of images and CSS switched off. A text-based browser will rely on well structured content to provide meanin’.

More:
CODE
www.delorie.com/web/lynxview

4.5 Does de site work well when printed?
You can take any (X)HTML document and simply style it for print, without havin’ to touch de markup.
CODE
www.alistapart.com/articles/goin\’toprint/

More:
CODE
www.d.umn.edu/itss/support/Trainin\’/Online/webdesign/css.html#print

4.6 Does de site work well in Hand Held devices?
This is a hard one to deal with until hand held devices consistently support deir correct media type. However, some layouts work better in current hand-held devices. The importance of supportin’ hand held devices will depend on target audiences.

4.7 Does de site include detailed metadata?
Metadata is machine understandable information for de web
CODE
www.w3.org/Metadata/

Metadata is structured information that is created specifically to describe anoder resource. In oder words, metadata is ‘data about data’.

4.8 Does de site work well in a range of browser window sizes?
It is a common assumption amon’st developers that average screen sizes are increasin’. Some developers assume that de average screen size is now 1024px wide. But what about users with smaller screens and users with hand held devices? Are dey part of your target audience and are dey bein’ disadvantaged?

5. Basic Usability

5.1 Is dere a clear visual hierarchy?
Organise and prioritise de contents of a page by usin’ size, prominence and content relationships.
CODE
www.great-web-design-tips.com/web-site-design/165.html

5.2 Are headin’ levels easy to distin’uish?
Use header elements to convey document structure and use them accordin’ to specification.
CODE
www.w3.org/TR/WCAG10/wai-pageauth.html#tech-logical-headin\’s

5.3 Is de site’s navigation easy to understand?
Your navigation system should give your visitor a clue as to what page of de site dey are currently on and where dey can go next.
CODE
www.1stsitefree.com/design_nav.htm

5.4 Is de site’s navigation consistent?
If each page on your site has a consistent style of presentation, visitors will find it easier to navigate between pages and find information
CODE
www.juicystudio.com/tutorial/accessibility/navigation.asp

5.5 Does de site use consistent and appropriate lan’uage?
The use of clear and simple lan’uage promotes effective communication. Tryin’ to come across as articulate can be as difficult to read as poorly written grammar, especially if de lan’uage used isn’t de visitor’s primary lan’uage.
CODE
www.juicystudio.com/tutorial/accessibility/clear.asp

5.6 Does de site have a sitemap page and contact page? Are dey easy to find?
Most site maps fail to convey multiple levels of de site’s information architecture. In usability tests, users often overlook site maps or can’t find them. Complexity is also a problem: a map should be a map, not a navigational challenge of its own.
CODE
www.useit.com/alertbox/20020106.html

5.7 For large sites, is dere a search tool?
While search tools are not needed on smaller sites, and some people will not ever use them, site-specific search tools allow users a choice of navigation options.

5.8 Is dere a link to de home page on every page in de site?
Some users like to go back to a site’s home page after navigatin’ to content within a site. The home page becomes a base camp for dese users, allowin’ them to regroup before explorin’ new content.

5.9 Are links underlined?
To maximise de perceived affordance of clickability, colour and underline de link text. Users shouldn’t have to guess or scrub de page to find out where dey can click.
CODE
www.useit.com/alertbox/20040510.html

5.10 Are visited links clearly defined?
Most important, knowin’ which pages dey’ve already visited frees users from unintentionally revisitin’ de same pages over and over again.
CODE
www.useit.com/alertbox/20040503.html

6. Site management

6.1 Does de site have a meanin’ful and helpful 404 error page that works from any depth in de site?
You’ve requested a page - eider by typin’ a URL directly into de address bar or clickin’ on an out-of-date link and you’ve found yourself in de middle of cyberspace nowhere. A user-friendly website will give you a helpin’ hand while many oders will simply do nothin’, relyin’ on de browser’s built-in ability to explain what de problem is.
CODE
www.alistapart.com/articles/perfect404/

6.2 Does de site use friendly URLs?
Most search en’ines (with a few exceptions - namely Google) will not index any pages that have a question mark or oder character (like an ampersand or equals sign) in de URL… what good is a site if no one can find it?
CODE
www.sitepoint.com/article/search-en\’ine-friendly-urls

One of de worst elements of de web from a user interface standpoint is de URL. However, if dey’re short, logical, and self-correctin’, URLs can be acceptably usable
CODE
www.merges.net/deory/20010305.html

More:
CODE
www.sitepoint.com/article/search-en\’ine-friendly-urls

CODE
www.websitegoodies.com/article/32

CODE
www.merges.net/deory/20010305.html

6.3 Does de site’s URL work without “www”?
While this is not critical, and in some cases is not even possible, it is always good to give people de choice of both options. If a user types your domain name without de www and gets no site, this could disadvantage both de user and you.
6.4 Does de site have a favicon?

A Favicon is a multi-resolution image included on nearly all professionally developed sites. The Favicon allows de webmaster to furder promote deir site, and to create a more customized appearance within a visitor’s browser.
CODE
www.favicon.com/

Favicons are definitely not critical. However, if dey are not present, dey can cause 404 errors in your logs (site statistics). Browsers like IE will request them from de server when a site is bookmarked. If a favicon isn’t available, a 404 error may be generated. Therefore, havin’ a favicon could cut down on favicon specific 404 errors. The same is true of a ‘robots.txt’ file.

A Basic Guide To The Internet

The Internet is a computer network made up of thousands of networks worldwide. No one knows exactly how many computers are connected to de Internet. It is certain, however, that dese number in de millions.

No one is in charge of de Internet. There are organizations which develop technical aspects of this network and set standards for creatin’ applications on it, but no governin’ body is in control. The Internet backbone, through which Internet traffic flows, is owned by private companies.

All computers on de Internet communicate with one anoder usin’ de Transmission Control Protocol/Internet Protocol suite, abbreviated to TCP/IP. Computers on de Internet use a client/server architecture. This means that de remote server machine provides files and services to de user’s local client machine. Software can be installed on a client computer to take advantage of de latest access technology.

An Internet user has access to a wide variety of services: electronic mail, file transfer, vast information resources, interest group membership, interactive collaboration, multimedia displays, real-time broadcastin’, shoppin’ opportunities, breakin’ news, and much more.

The Internet consists primarily of a variety of access protocols. Many of dese protocols feature programs that allow users to search for and retrieve material made available by de protocol.

COMPONENTS OF THE INTERNET

WORLD WIDE WEB
The World Wide Web (abbreviated as de Web or WWW) is a system of Internet servers that supports hypertext to access several Internet protocols on a sin’le interface. Almost every protocol type available on de Internet is accessible on de Web. This includes e-mail, FTP, Telnet, and Usenet News. In addition to dese, de World Wide Web has its own protocol: HyperText Transfer Protocol, or HTTP. These protocols will be explained later in this document.

The World Wide Web provides a sin’le interface for accessin’ all dese protocols. This creates a convenient and user-friendly environment. It is no longer necessary to be conversant in dese protocols within separate, command-level environments. The Web gaders togeder dese protocols into a sin’le system. Because of this feature, and because of de Web’s ability to work with multimedia and advanced programmin’ lan’uages, de Web is de fastest-growin’ component of de Internet.

The operation of de Web relies primarily on hypertext as its means of information retrieval. HyperText is a document containin’ words that connect to oder documents. These words are called links and are selectable by de user. A sin’le hypertext document can contain links to many documents. In de context of de Web, words or graphics may serve as links to oder documents, images, video, and sound. Links may or may not follow a logical path, as each connection is programmed by de creator of de source document. Overall, de Web contains a complex virtual web of connections amon’ a vast number of documents, graphics, videos, and sounds.

Producin’ hypertext for de Web is accomplished by creatin’ documents with a lan’uage called HyperText Markup Lan’uage, or HTML. With HTML, tags are placed within de text to accomplish document formattin’, visual features such as font size, italics and bold, and de creation of hypertext links. Graphics and multimedia may also be incorporated into an HTML document. HTML is an evolvin’ lan’uage, with new tags bein’ added as each upgrade of de lan’uage is developed and released. The World Wide Web Consortium (W3C), led by Web founder Tim Berners-Lee, coordinates de efforts of standardizin’ HTML. The W3C now calls de lan’uage XHTML and considers it to be an application of de XML lan’uage standard.

The World Wide Web consists of files, called pages or home pages, containin’ links to documents and resources throughout de Internet.

The Web provides a vast array of experiences includin’ multimedia presentations, real-time collaboration, interactive pages, radio and television broadcasts, and de automatic “push” of information to a client computer. Programmin’ lan’uages such as Java, JavaScript, Visual Basic, Cold Fusion and XML are extendin’ de capabilities of de Web. A growin’ amount of information on de Web is served dynamically from content stored in databases. The Web is derefore not a fixed entity, but one that is in a constant state of development and flux.

For more complete information about de World Wide Web, see Understandin’ The World Wide Web.

E-MAIL
Electronic mail, or e-mail, allows computer users locally and worldwide to exchange messages. Each user of e-mail has a mailbox address to which messages are sent. Messages sent through e-mail can arrive within a matter of seconds.

A powerful aspect of e-mail is de option to send electronic files to a person’s e-mail address. Non-ASCII files, known as binary files, may be attached to e-mail messages. These files are referred to as MIME attachments.MIME stands for Multimedia Internet Mail Extension, and was developed to help e-mail software handle a variety of file types. For example, a document created in Microsoft Word can be attached to an e-mail message and retrieved by de recipient with de appropriate e-mail program. Many e-mail programs, includin’ Eudora, Netscape Messenger, and Microsoft Outlook, offer de ability to read files written in HTML, which is itself a MIME type.

TELNET
Telnet is a program that allows you to log into computers on de Internet and use online databases, library catalogs, chat services, and more. There are no graphics in Telnet sessions, just text. To Telnet to a computer, you must know its address. This can consist of words (locis.loc.gov) or numbers (140.147.254.3). Some services require you to connect to a specific port on de remote computer. In this case, type de port number after de Internet address. Example: telnet nri.reston.va.us 185.

Telnet is available on de World Wide Web. Probably de most common Web-based resources available through Telnet have been library catalogs, though most catalogs have since migrated to de Web. A link to a Telnet resource may look like any oder link, but it will launch a Telnet session to make de connection. A Telnet program must be installed on your local computer and configured to your Web browser in order to work.

With de increasin’ popularity of de Web, Telnet has become less frequently used as a means of access to information on de Internet.

FTP
FTP stands for File Transfer Protocol. This is both a program and de method used to transfer files between computers. Anonymous FTP is an option that allows users to transfer files from thousands of host computers on de Internet to deir personal computer account. FTP sites contain books, articles, software, games, images, sounds, multimedia, course work, data sets, and more.

If your computer is directly connected to de Internet via an Edernet cable, you can use one of several PC software programs, such as WS_FTP for Windows, to conduct a file transfer.

FTP transfers can be performed on de World Wide Web without de need for special software. In this case, de Web browser will suffice. Whenever you download software from a Web site to your local machine, you are usin’ FTP. You can also retrieve FTP files via search en’ines such as FtpFind, located at /http://www.ftpfind.com/. This option is easiest because you do not need to know FTP program commands.

E-MAIL DISCUSSION GROUPS
One of de benefits of de Internet is de opportunity it offers to people worldwide to communicate via e-mail. The Internet is home to a large community of individuals who carry out active discussions organized around topic-oriented forums distributed by e-mail. These are administered by software programs. Probably de most common program is de listserv.

A great variety of topics are covered by listservs, many of them acathemic in nature. When you subscribe to a listserv, messages from oder subscribers are automatically sent to your electronic mailbox. You subscribe to a listserv by sendin’ an e-mail message to a computer program called a listserver. Listservers are located on computer networks throughout de world. This program handles subscription information and distributes messages to and from subscribers. You must have a e-mail account to participate in a listserv discussion group. Visit Tile.net at /http://tile.net/ to see an example of a site that offers a searchablecollection of e-mail discussion groups.

Majordomo and Listproc are two oder programs that administer e-mail discussion groups. The commands for subscribin’ to and managin’ your list memberships are similar to those of listserv.

USENET NEWS
Usenet News is a global electronic bulletin board system in which millions of computer users exchange information on a vast range of topics. The major difference between Usenet News and e-mail discussion groups is de fact that Usenet messages are stored on central computers, and users must connect to dese computers to read or download de messages posted to dese groups. This is distinct from e-mail distribution, in which messages arrive in de electronic mailboxes of each list member.

Usenet itself is a set of machines that exchanges messages, or articles, from Usenet discussion forums, called newsgroups. Usenet administrators control deir own sites, and decide which (if any) newsgroups to sponsor and which remote newsgroups to allow into de system.

There are thousands of Usenet newsgroups in existence. While many are acathemic in nature, numerous newsgroups are organized around recreational topics. Much serious computer-related work takes place in Usenet discussions. A small number of e-mail discussion groups also exist as Usenet newsgroups.

The Usenet newsfeed can be read by a variety of newsreader software programs. For example, de Netscape suite comes with a newsreader program called Messenger. Newsreaders are also available as standalone products.

FAQ, RFC, FYI
FAQ stands for Frequently Asked Questions. These are periodic postin’s to Usenet newsgroups that contain a wealth of information related to de topic of de newsgroup. Many FAQs are quite extensive. FAQs are available by subscribin’ to individual Usenet newsgroups. A Web-based collection of FAQ resources has been collected by The Internet FAQ Consortium and is available at /http://www.faqs.org/.

RFC stands for Request for Comments. These are documents created by and distributed to de Internet community to help define de nuts and bolts of de Internet. They contain both technical specifications and general information.

FYI stands for For Your Information. These notes are a subset of RFCs and contain information of interest to new Internet users.

Links to indexes of all three of dese information resources are available on de University Libraries Web site at /http://library.albany.edu/reference/faqs.html.

CHAT & INSTANT MESSENGING
Chat programs allow users on de Internet to communicate with each oder by typin’ in real time. They are sometimes included as a feature of a Web site, where users can log into de “chat room” to exchange comments and information about de topics addressed on de site. Chat may take oder, more wide-ran’in’ forms. For example, America Online is well known for sponsorin’ a number of topical chat rooms.

Internet Relay Chat (IRC) is a service through which participants can communicate to each oder on hundreds of channels. These channels are usually based on specific topics. While many topics are frivolous, substantive conversations are also takin’ place. To access IRC, you must use an IRC software program.

A variation of chat is de phenomenon of instant messen’in’. With instant messen’in’, a user on de Web can contact anoder user currently logged in and type a conversation. Most famous is America Online’s Instant Messenger. ICQ, MSN and Yahoo are oder commonly-used chat programs.

Oder types of real-time communication are addressed in de tutorial Understandin’ de World Wide Web.

MUD/MUSH/MOO/MUCK/DUM/MUSE
MUD stands for Multi User Dimension. MUDs, and deir variations listed above, are multi-user virtual reality games based on simulated worlds. Traditionally text based, graphical MUDs now exist. There are MUDs of all kinds on de Internet, and many can be joined free of charge. For more information, read one of de FAQs devoted to MUDs available at de FAQ site at