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Web Dev + WordPress + Security
Tag: proxy
5 posts

Block Proxy Visits with PHP

I wrote recently about how to block proxy visits with WordPress. That article provides a simple, plug-&-play script that you can drop into WordPress-powered site. This article goes further with two effective techniques for blocking proxy visits to your site using only a few lines of PHP. These techniques work for any PHP-enabled site, including WordPress, Drupal, Joomla, and many others. And they’re both easy to implement. Just a few minutes and your site can be relatively free of most […] Continue reading »

WordPress Block Proxy Visits

I’ve covered a lot of techniques for controlling proxy access. And I’m not done yet. This post expands on the block tough proxies technique by making it plug-&-play with WordPress. Continue reading »

Protect Against Brute-force/Proxy Login Attacks

For the past week, I’ve been monitoring activity from a set of IP addresses involved with brute-force login attacks. Brute-force login attacks involve systematic guessing of passwords using various common usernames such as “admin” and “username”. So for example, an attack will target an array of sites, use “admin” as the username, and then make numerous attempts at “guessing” your password. And to obfuscate their malicious activity, the attack is executed from multiple IP addresses, either via proxy or possibly […] Continue reading »

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 […] Continue reading »

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. Here is the ineffective htaccess directive that was used: Deny from proxydomain.com proxydomain2.com Blacklisting proxy servers by blocking individual domains seems like a futile exercise. Although there are […] Continue reading »

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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 »
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