The official of GPG keys of MySQL are expired so the new installations and upgrades from the official package repository are failed with the following message.
Linux snippet to install Python LDAP on various Linux distributions.
HTTP protocol defines several Methods to access and modify content served on a server. Apache the most commonly use web server to date. It provide 9 HTTP methods. Most of the web applications and website use only 2 or 3 methods i.e. GET,POST and sometimes HEAD method.
This configuration snippet will install custom self signed certificate for Apache Web server on Ubuntu.
In order to use encryption and decryption in PHP, we need to inatall PHP extension mcrypt.