Static routes configuration on CentOS6

Context To introduce this post, let’s imagine you have a very bad IT provider which delivers you anon configured server. This server is so badly configured that although you have a CentOS machine installed on it, you only have access to the server management interface. Of course for project deadline reason, sending it back to your integrator, so that he can configure it a bit better, isn’t an option. OMG, what can we do?…