You can use some sort of configuration management tool to manage most of that from one centralized place. Some examples are chef, puppet, ansible, etc. I recom

You can use some sort of configuration management tool to manage most of that from one centralized place. Some examples are chef, puppet, ansible, etc. I recommend ansible since it's pretty lightweight and uses plain old ssh (i.e.: no agent daemon required). You can setup some simple playbooks or run some tasks remotely on one or multiple servers at the same time. These tools are very flexible but they do require a bit of a learning curve so it may not be worthwhile for 2 servers. It's still a valuable skill set for anybody with a bit of devops interest.