Phusion Passenger is a web server and application server for your web apps which built upon Ruby or NodeJS. In this documentation I will show how to install open source version of Phusion Passenger on CentOS 6.6 using Ruby gem installation.

Check your Ruby location

which ruby …

MongoDB is the only database that harnesses the innovations of NoSQL (flexibility, scalability, performance) and builds on the foundation of relational databases (expressive query language, secondary indexes, strong consistency). In this documentation, I will show how to install MongoDB on CentOS 6. …

Memcached is free & open source, high-performance, distributed memory object caching system, generic in nature, but intended for use in speeding up dynamic web applications by alleviating database load. Memcached is an in-memory key-value store for small chunks of arbitrary data (strings, …

I am trying to write again after some month was absent from touching any electronic notes (blogs). Actually I wanted to do it from a long time ago but I was afraid don’t have any material with qualities to be written. In reality, I realized that I have been encountering events that I must …

I have run Ghost for quite some time now and I have been through two upgrade process so I think it will be a good idea to save a procedure for easy upgrading. I found the instruction here.

Manually upgrade Ghost

I usually use manual upgrade method because I don’t inspect the automatic scripts …

Puppet is a software which can automate configuration and management of machines and software running on them. This tool has great benefits for system administrator because it helps sysadmin to be the dream of every sysadmin, a lazy sysadmin. Puppet has great support for many operating system. …