Cloud infrastructure seemed to be the modern infrastructure for company set up, and the rate of companies migrating into cloud is increasing rapidly. Platform as a service (PaaS) for cloud computing model is popular among a lot of companies. In such model, a third-party providers delivers hardware and software tools and companies only internet connection on their end. PaaS allows companies to cut cost by saving on maintenance cost, labor cost and the large one-time charge cost for purchasing equipment. The flexibility of companies increasing their computing power anytime and anywhere is a great advantage to growing companies.