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Tag Archive

Sexy HTML List Tricks

Behold the ubiquitous list elements, <ul></ul> and <ol></ol>! These two sexy elements help millions of websites display lists of information in clean, semantic fashion. Without them, we’d be crawling around like filthy cavemen, eating dirt and howling at the moon. But these list elements aren’t just sexy, they are also extremely flexible, enabling us humble designers to create robust list configurations that are semantically versatile and highly customizable. We all know how to throw down a basic list: Read more »

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 »

How to Block Proxy Servers via htaccess

Not too long ago, a reader going by the name of bjarbj78 asked about how to block proxy servers from accessing her website. Apparently, bjarbj78 had taken the time to compile a proxy blacklist of over 9,000 domains, only to discover afterwards that the formulated htaccess blacklisting strategy didn’t work as expected: deny from Blacklisting proxy servers by blocking individual domains seems like a futile exercise. Although there are a good number of reliable, consistent proxy domains that could be blocked directly, the vast majority of such sites are constantly changing. It would take a team of professionals […] Read more »

CSS/(X)HTML Tutorial: Hovering Accessibility Jump Menu

Recently, a reader named Don asked about this theme’s accessibility (accesskey) jump menu located at the top of each page. Several people have commented that they like the way the jump menu “lights up” upon gaining focus. Whenever a user hovers their cursor over the region at the top of the page, all links in the jump menu change to a more visible color. Then, as the cursor moves over the various menu items, each jump link is further highlighted with an even brighter color and an underline. This progressive focusing is best seen in browsers that support the CSS […] Read more »

2G Blacklist: Closing the Door on Malicious Attacks

Since posting the Ultimate htaccess Blacklist and then the Ultimate htaccess Blacklist 2, I find myself dealing with a new breed of malicious attacks. It is no longer useful to simply block nefarious user agents because they are frequently faked. Likewise, blocking individual IP addresses is generally a waste of time because the attacks are coming from a decentralized network of zombie machines. Watching my error and access logs very closely, I have observed the following trends in current attacks: User agents are faked, typically using something generic like “Mozilla/5.0” Each attack may involve hundreds of compromised IP addresses Attacks […] Read more »

Ultimate htaccess Blacklist 2 (Compressed Version)

In our original htaccess blacklist article, we provide an extensive list of bad user agents. This so-called “Ultimate htaccess Blacklist” works great at blocking many different online villains: spammers, scammers, scrapers, scrappers, rippers, leechers — you name it. Yet, despite its usefulness, there is always room for improvement. For example, as reader Greg suggests, a compressed version of the blacklist would be very useful. In this post, we present a compressed version of our Ultimate htaccess Blacklist that features around 50 new agents. Whereas the original blacklist is approximately 8.6KB in size, the compressed version is only 3.4KB, even with […] Read more »

Computer Flashback: Windows 98 Run Commands

Even with all the fancy-pants new features found in Windows XP and now Vista, Microsoft Windows 98 (Second Edition) remains our favorite Windows-flavored operating system. We love it so much, we still use it on one of our trusty laptops. Over the years, we have discovered several very useful functions available via the command line or even the “Run” prompt (Start → Run…). Anyway, without spending too much time researching or explaining these wonderful tools, we figured posting the information online may prove beneficial at some point in the future. So, without further ado, we present this working repository of helpful MS […] Read more »

Ultimate htaccess Blacklist

For those of us running Apache, htaccess rewrite rules provide an excellent way to block spammers, scrapers, and other scumbags easily and effectively. While there are many htaccess tricks involving blocking domains, preventing access, and redirecting traffic, Apache’s mod_rewrite module enables us to target bad agents by testing the user-agent string against a predefined blacklist of unwanted visitors. Any matches are immediately and quietly denied access. There are many ways to obtain an effective htaccess blacklist. There are several excellent forums around the web that provide a plethora of priceless htaccess advice. Highly suggested. Additionally, after copying and pasting your […] Read more »

Perishable Press Search Engine Optimization Library

Update (2012/12/01): Man this is an old post! It started out as this huge gigantic resource back when it was first published, but over the years removing broken links has really whittled it down. Please be advised that this list is mostly for historical purposes, and will eventually be removed. Welcome to Perishable Press! This article covers a plethora of search-engine optimization resources. For more excellent SEO information, check out the Optimization category archive. If you like what you see, I encourage you to subscribe to Perishable Press for a periodic dose of online enlightenment ;) Search-Engine-Related Websites […] Read more »

WordPress Plugins

Free WordPress plugins! Here is my current offering of plugins for WordPress. Enjoy! Alternately these plugins are available at the WP Plugin Directory and at Plugin Planet » Read more »

WordPress Plugin Central

Welcome to WordPress Plugin Central! Here we will organize, review, and log any changes made to the plugins used here at Perishable Press. Our first task involves listing all of the plugins used as of May 29, 2006 (Note: This list is updated with every plugin modification and is current as of the “Edited on” date in the “Post Metadata” section to the left of this post): Update 2013/10/15: This article is from 2006 and no longer accurate! Informational/reference purposes only. Read more »

Latest Tweets USP Pro 2.3 released! Features include new Widgets, Quicktags, and Shortcodes:…