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2009 Feb
Monthly Archive

Controlling Proxy Access with HTAccess

In my recent article on blocking proxy servers, I explain how to use HTAccess to deny site access to a wide range of proxy servers. The method works great, but some readers want to know how to allow access for specific proxy servers while denying access to as many other proxies as possible. Fortunately, the solution is as simple as adding a few lines to my original proxy-blocking method. Specifically, we may allow any requests coming from our whitelist of proxy servers by testing Apache’s HTTP_REFERER variable, like so: RewriteCond %{HTTP_REFERER} !(.*)allowed-proxy-01.domain.tld(.*) RewriteCond %{HTTP_REFERER} !(.*)allowed-proxy-02.domain.tld(.*) RewriteCond %{HTTP_REFERER} !(.*)allowed-proxy-03.domain.tld(.*) Read more »

Book Review: WordPress for Business Bloggers

WordPress for Business Bloggers by Packt Publishing was a pleasure to read because it approaches many of the important aspects of WordPress from a slightly different perspective: that of the “business blogger”. The book is aimed at the aspiring business blogger who wants to use WordPress to run a successful business blog. The book claims to skip the basics and jump right into the meat of transforming WordPress into a lean, mean business blogging machine. While this may be true for the book’s target audience, the technical aspects of WordPress covered in the book are familiar ground to the seasoned […] Read more »

Better WordPress Archives via Dynamic Triple Column Layout

Here at Perishable Press, the number of posts listed in my archives is rapidly approaching the 700 mark. While this is good news in general, displaying such a large number of posts in an effective, user-friendly fashion continues to prove challenging. Unfortunately, my current strategy of simply dumping all posts into an unordered list just isn’t working. I think it’s fair to say that archive lists containing more than like 50 or 100 post titles are effectively useless and nothing more than a usability nightmare. With growing numbers of blogs building up massive collections of posts, finding better ways to […] Read more »

Remove the WWW Prefix for all URLs via PHP

Canonical URLs are important for maintaining consistent linkage, reducing duplicate content issues, and increasing the overall integrity of your site. In addition to cleaning up trailing slashes and removing extraneous index.php and index.html strings, removing the www subdirectory prefix is an excellent way to shorten links and deliver consistent, canonical URLs. Of course, an optimal way of removing (or adding) the www prefix is accomplished via HTAccess canonicalization: Read more »

Eight Ways to Blacklist with Apache’s mod_rewrite

With the imminent release of the next series of (4G) blacklist articles here at Perishable Press, now is the perfect time to examine eight of the most commonly employed blacklisting methods achieved with Apache’s incredible rewrite module, mod_rewrite. In addition to facilitating site security, the techniques presented in this article will improve your understanding of the different rewrite methods available with mod_rewrite. Blacklist via Request Method This first blacklisting method evaluates the client’s request method. Every time a client attempts to connect to your server, it sends a message indicating the type of connection it wishes to make. There are […] Read more »

Unobtrusive JavaScript for ‘Print-This’ Links

One of the oldest JavaScript tricks in the book involves providing a “print this!” link for visitors that enables them to summon their operating system’s default print dialogue box to facilitate quick and easy printing of whatever page they happen to be viewing. With the old way of pulling this little stunt, we write this in the markup comprising the target “print this!” link in question: <a href=”javascript:window.print()”>Print This!</a> Big yuck there, of course, due to the obtrusive nature of the JavaScript implementation. Adhering to the principles of proper Web Standards, it is better practice to separate behavior from structure […] Read more »

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