I recently added a Content Security Policy header to my web servers. I found a number of issues around getting analytics and embedded videos and maps working. Other sites will have more issues but I suspects these are among the most common.
My article Running Drupal on Debian 8 with Apache 2.4, event MPM and PHP-FPM (via socks and proxy) is one of the most read on xdeb.org. Here is the updated version for Debian 9. I mention Drupal in the title but this setup should work well for most PHP based systems like Wordpress and Joomla etc.
Let’s Encrypt is a project that offer free domain validated SSL/TLS certificates. The organisations and companies behind it includes EFF, Mozilla, Akamai and Cisco as well as many other. EFF has long been working for HTTPS Everywhere and Let’s Encrypt is a big step in this direction.
Updated version of this article: Running Drupal on Debian 9 with Apache 2.4, HTTP/2, event MPM and PHP-FPM (via socks and proxy) I’m building a new Ansible playbook for setting up web servers with Debian 8. I have always used mod_php before and it has been very stable but have some well known drawbacks.
At DrupalCamp Stockholm 2009 Robert Douglass from Acquia talked about Drupal with Apache Solr search. Solr takes searching in Drupal a huge step forward. Speed and faceted search on author/type/term/language/date/CCK fields are the main features. A “Did you mean …” function is there also and it works surprisingly well.