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Web Dev + WordPress + Security
Category: Security
151 posts

Invite Only: Traffic Control via Whitelist

Web developers trying to control comment-spam, bandwidth-theft, and content-scraping must choose between two fundamentally different approaches: selectively deny target offenders (the “blacklist” method) or selectively allow desirable agents (the “opt-in”, or “whitelist” method). Currently popular according to various online forums and discussion boards is the blacklist method. The blacklist method requires the webmaster to create and maintain a working list of undesirable agents, usually blocking their access via htaccess or php. The downside of blacklisting is that it requires considerable […] Continue reading »

Industrial-Strength Spamless Email Links

In our previous article on creating spamless email links via JavaScript, the presented method, although relatively simple to implement, is not the most effective solution available. Spambots, email harvesters, and other online scumbags relentlessly advance their scanning technology, perpetually rendering obsolete yesterday’s methods. Continue reading »

Disobedient Robots and Company

In our never-ending battle against spammers, leeches, scrapers, and other online undesirables, we have implemented several powerful security measures to improve the operational integrity of our perpetual virtual existence. Here is a rundown of the new behind-the-scenes security features of Perishable Press. Continue reading »

Block Spam by Denying Access to No-Referrer Requests

What we have here is an excellent method for preventing a great deal of blog spam. With a few strategic lines placed in your .htaccess file, you can prevent spambots from dropping spam bombs by denying access to all requests that do not originate from your domain. Continue reading »

Stop Bitacle from Stealing Content

If you have yet to encounter the content-scraping site, bitacle.org, consider yourself lucky. The scum-sucking worm-holes at bitacle.org are well-known for literally, blatantly, and piggishly stealing blog content and using it for financial gains through advertising. While I am not here to discuss the legal, philosophical, or technical ramifications of illegal bitacle behavior, I am here to provide a few critical tools that will help stop bitacle from stealing your content. Continue reading »

Website Attack Recovery

Recently, every website on our primary server was simultaneously attacked. The offending party indiscriminately replaced the contents of every index file, regardless of its extension or location, with a few vulgar lines of code, which indicated intention, identity, and influence. Apparently, the attack occurred via Germany, through a server at the University of Hamburg (uni-hamburg.de). This relatively minor attack resulted in several hours of valuable online education. In this article, it is our intention to share experience with website attack […] Continue reading »

HTTP Error Codes

A list of HTTP Error codes and corresponding definitions: Informational Codes 100 — Continue 101 — Switching Protocols Successful Client Requests 200 — OK 201 — Created 202 — Accepted 203 — Non-Authoritative Information 204 — No Content 205 — Reset Content 206 — Partial Content Client Request Redirected 300 — Multiple Choices 301 — Moved Permanently 302 — Moved Temporarily 303 — See Other 304 — Not Modified 305 — Use Proxy 307 — Temporary Redirect Client Request Errors […] Continue reading »

Welcome
Perishable Press is operated by Jeff Starr, a professional web developer and book author with two decades of experience. Here you will find posts about web development, WordPress, security, and more »
The Tao of WordPress: Become your own WordPress guru.
Thoughts
Finished updating all of my books! As always, book owners can download the latest versions for FREE :)
W3C.org has a very thorough list of accessibility tools.
The more you wake up, the more you realize you are still asleep.
7G Firewall v1.4 now available!
I would pay twice as much for a shorter/smaller/lighter phone.
Taking a much needed break in August :)
The Web was better before social media.
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