Category Archives: Servers

Segfaults in after upgrading to RHEL/CentOS 6.8

Please be aware of the following bug in RHEL and CentOS 6.8 when using Xen as your Hypervisor. We experienced this issue on a couple of servers after updating CentOS after which some websites were starting to serve “503 Service Unavailable” or “404 Page not found” errors. The website related logfiles didn’t show any issues,… Read More »

WordPress/Joomla bruteforce server-wide protection with reCAPTCHA

A common way to protect the WordPress wp-admin and Joomla administrator directories against (automated) bruteforce password attacks is to password protect both directories with Basic Authentication. Webhosting companies could do this on a server-wide base through an Apache configuration that matches all wp-login.php and administrator requests. If a bot, or user, accessed the wp-admin (WordPress)… Read More »