Word documents are the absolute last format that anyone should ever consider uploading to the web because what is visible in the document is usually not all that the document contains.A knowledgeable person can extract past copies of the content out of the document and find out things you didn’t want them to know. Breach [...]

Back in the early days before the developers of PHP thought about the security issues and values passed to PHP via the GET and POST arrays could be referenced directly using a variable with the appropriate field name. When the associated security issues were recognised a new mode called safe mode was introduced to disable [...]

Creating a calendar to put into your web page becomes a whole lot easier if you use a server side script to generate the table tags for you. Here’s one that you can either build into your page to generate calendars dynamically or which you can alternatively use just to generate the HTML that you [...]

How can you uninstall a program from your computer if it isn’t in the list of programs that the system thinks are installed? In this short tutorial we look at what the more straightforward alternatives are for resolving this problem. Remove Unlisted Program

While HTML and XHTML may look a lot alike they are really quite a lot different in the way that they really work You can’t get away with all the silly errors in your XHTML because the browser will stop displaying the page as soon as it finds any validation errors at all. The way [...]

There are lots of web sites around that don’t contain valid HTML. Instead they use proprietary tags that only have meaning to specific browsers. One very common usage is to use an <embed> tag to embed Flash into a web page instead of using the correct tag for the job which is the <object> tag. [...]

Links from one web page to another that use a rel=”nofollow” attribute do not get followed by the major search engines. Some people argue that this makes them worthless for Search Engine Optimisation purposes. Those people have overlooked the secondary effect that they can have in helping you to gain lots more links from sites [...]

When sending the one email to more than one person, particularly when those people do not know one another, it is extremely poor practice to include all their email addresses in the To: and Cc: fields. Doing so not only means that people may have to scroll down a long way just to get past [...]

One possible cause for problems if you use relative addresses to link your pages on your web site together is “relative to what?” Depending on where you have the reference and how you define it you may or may not get what you expect. Figuring out how to get your relative links working correctly is [...]

One thing I overlooked in prior discussions about password hashing and its affect on system security is the idea of hashing the password in the browser before sending it to the server. In this article I look at this alternative and how it may in fact have the opposite effect to what you intend. Client [...]

One way of organising your hard drive so as to make backing up your own data much easier is to partition the drive so as to have separate partitions for the operating system, applications, and data. Windows has its own ideas on where to store data with a lot of it going into a folder [...]

For web designers, the attitude of the site owner makes a big difference to how easy or hard the job of designing their site will be. Are they going to insist that their site look exactly how they want it to (even though it will be completely unusable) or are they going to rely on [...]

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