Nginx Reverse Proxy

centos logo Using CentOS 6 I installed Nginx with: and amended the config file for the default website i.e. With the following content: So visiting the web address as configured under the 'server' section will proxy the website... » More

Fido U2F Security Key

FIDO U2F Key Opening So I ordered a FIDO U2F Security Key from a French company 'Plug-Up' to have a little play.  It is used in 2-factor authentication so when logging in to a service you first enter your username and password and if correct your are prompted for your... » More

Environment Modules

Environment Modules allow for management of environment variables  when using multiple compilers, multiple libraries, or even versions of applications that you might need to run. Rather than change $PATH, $LD_LIBRARY_LOAD, or $MANPATH for each you can... » More

Server Technology Sentry Switched CDU

Sentry CDU A few notes for future reference. I am playing with a power distribution unit from Server Technology  - Model CW-16VE-P32M Initially to configure the device I plugged both the Cabinet Distribution Unit (CDU) unit and a laptop into a switch, setting... » More

Favicon Generator

Note to Self: The service at is great for generating favicon's and icons for other mobile platforms.    

Deploying a Web Project from Gitlab

gitlab deploy hooks I wanted to automatically deploy a web project when any updates are pushed to the gitlab repository. To do so I added a 'Web Hook'. The Web Hook calls a URL in response to 'push' events. I created a PHP page to be called by the Web Hook: So in... » More

Huge Pages in CentOS 6

centos logo To check the size and amount of Huge Pages use: This should so something like: To change the number of HugePages use the following: This would allocate 2560x2048kB = 5GB To check the impact on memory: Reset Huge Pages The change can be... » More