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Tag Archive

Redirect Query String via .htaccess

In general, redirecting URLs is a piece of cake with Apache’s .htaccess. The only trick is redirecting based on the URL’s query-string value. Doing so requires slightly different directives that many people are not aware of, so it’s common to see a questions like, “why isn’t my redirect working for query strings?” This quick tutorial aims to clear up any confusion and explains how to redirect any URL based on its query string. Read more »

How to Redirect URLs

Want to redirect a URL from one location to another? This simple guide shows you how to do it with Apache/.htaccess, PHP, JavaScript, HTML, and more. Each redirect technique is briefly explained and includes ready-to-go, copy-&-paste examples. Just grab the code you need and use it in good health. May the redirects be with you! Read more »

Detect Attacks with PHP and .htaccess

This tutorial explains how to detect and block security threats via .htaccess, and then pass that information to a PHP script for further processing. This is a powerful technique that combines the power of Apache with the flexibility of PHP. Enabling you to do things like log all unwanted traffic, send email reports for blocked requests, create a UI to display logged data, and just about anything else you can imagine. It’s an excellent way to keep a close eye on any malicious activity happening on your site. And a great tool to have in your belt. Read more »

Block Greasy Uploads Scanner

Whether you’re running WordPress or not, your site may be getting hit by endless scanning for your site’s uploaded files and similar nonexistent resources. Specifically, the “Greasy Uploads Scanner” endlessly scans sites for nonexistent resources in the /uploads/ directory, even if the directory itself doesn’t exist. Just mindless scanning for all sorts of weird files. It steals your server resources and threatens your site security. We hates them. And we wants to block them. Read more »

How to Block Bad Bots

Suffering from spammers, content scrapers, bandwidth leeches, and other bad bots? Got some loser stalking your chat forum? Site getting scanned by endless malicious requests? In this tutorial, you’ll learn how to block bad bots and users with minimal effort. Keeping the trash away from your site is gonna free up valuable server resources, conserve bandwidth, and improve the overall security and quality of your site. Read more »

WordPress .htaccess file

The WordPress core uses .htaccess for two things: Permalinks and Multisite. This means that .htaccess is only required if you have enabled either of these features. Otherwise, .htaccess is entirely optional for default WordPress installations. Beyond the WP core, many plugins also use the .htaccess file for custom directives involving rewrites, redirects, custom headers, file compression, and much more. In many cases, such plugins add their .htaccess rules to your .htaccess file automatically, behind the scenes. Read more »

.htaccess Cleanup

Once again I am cleaning up my sites’ .htaccess files. I do this from time to time to remove old redirects, refresh blacklists, and update security and SEO-related directives. It’s tedious work, but the performance and security benefits make it all worthwhile. This post shares some of the techniques that were added, removed, or replaced from .htaccess, and explains the reasoning behind each decision. I do this for the sake of reference, and hopefully it will give you some ideas for your own .htaccess cleanups. Read more »

Stop WordPress from modifying .htaccess

By default, depending on file permissions, WordPress automatically will modify the contents of your site’s .htaccess file. It does this on several occasions, adding and/or updating the rewrite rules required for WP’s permalink functionality. This post explains how this works, why it can be dangerous, and how to stop it from happening. Read more »

6G Firewall 2017

After three years of development, testing, and feedback, I’m pleased to announce the official launch version of the 6G Firewall (aka the 6G Blacklist). This version of the nG Firewall is greatly refined, heavily tested, and better than ever. Fine-tuned to minimize false positives, the 6G Firewall protects your site against a wide variety of malicious URI requests, bad bots, spam referrers, and other attacks. Blocking bad traffic improves site security, reduces server load, and conserves precious resources. The 6G Firewall is entirely plug-n-play with no configuration required. It’s also open source, easy to use, and completely free, providing strong […] Read more »

Protect Against Humans.txt Query-String Scans

I woke up this morning to the sound of thousands of 404 requests hitting the server. It’s sad that there are kiddies out there who have nothing better to do than buy some pathetic $50 script and then sit there like an imbecile harassing people for hours on end. But alas, that is the world we live in — fortunately it’s less than trivial to block the entire scan with just a few lines of good old .htaccess. Read more »

Set Up WordPress MultiSite on MAMP

In this tutorial, you’ll learn how to install and run WordPress MultiSite on a MAMP webserver. Running multiple sites from a single installation simplifies and streamlines administration, and serving it all from a locally installed version of MAMP gives you everything you need to develop your network of sites for the Web. Read more »

Run WordPress Locally with _AMP

To run WordPress on the Web, you need a domain name and web host. But you don’t need either of those things to run WordPress on your own computer. You need only to set up a local server environment that includes Apache, MySQL, and PHP. That may sound like a tall order, but thanks to packaged software bundles such as MAMP and WAMP, setting up a robust server environment on your computer is a relative breeze. Read more »

Blacklist Candidate 2012-11-13: Evil Scanner Edition

It’s been awhile since I’ve posted one of my Blacklist Candidate series articles. It’s always fun for me to talk (or write) about security related issues, especially when a quick slab of .htaccess can be used to take care of business. And that’s exactly what we have in this edition of the series, where I’m pleased to bring you Blacklist Candidate Number 2012-11-13: the “evil” scanner. Instead of scanning your site, collecting data, and moving on, Mr. 2012-11-13 continues to scan the same sites for the exact same set of files. And by “continues” I mean over and over and […] Read more »

6G Beta

Update: Check out the new and improved 6G Firewall 2016! Since releasing the 5G Blacklist earlier this year, malicious server scans and bad requests have surged with more novel attacks than I’ve seen since first getting into this stuff six years ago. In other words, now is the time to beef up security and lock things down. If you’re into monitoring your server and knowing your traffic, you may be observing the same recent spike in malicious activity. In response to these attacks, I’ve been secretly working on the next generation of G-series blacklist, the inevitable 6G Firewall. Read more »

Blank Space / Whitespace Character for .htaccess

Working on the next version of the G-Series Blacklist, I needed a way to match a wide variety of UTF-8-encoded (hex) character strings. Those familiar with their site’s traffic will recognize this particular type of URI request string, which is typically associated with malicious server scanning, exploits, and other malicious behavior. As I explain in this post, pattern-matching and blocking the blank-space, or whitespace character in URL-requests is an effective way to improve the security of your website. Read more »

Case-Insensitive RedirectMatch

Cool trick that you may not have known about.. it’s possible to get case-insensitive matching with the powerful RedirectMatch directive. Normally, you would just write your redirect as something like this: Read more »

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