Because of its success, popularity and functionality, Ruby on Rails performs with an extensive variety of web servers and databases. Recommended for web servers would have to be Apache, lighttpd or nginx in place of Mongrel or it can be by means of FastCGI. Meanwhile, for database, the following have been suggested to be utilized: MySQL, PostgreSQL, SQLite, Oracle, SQL Server, DB2 and a lot more of servers that Ruby on Rails support and work well with. There is no limitation or strictly recommended on which operating system to use, but the best to make use of is a ‘nix-based one for deployment.