Hi all,

First let me explain the situation.
There is in the DMZ a NAT Server, behind the NAT Server is a vritual switch that is connected with a Network environment that called the live environment. Here are a lot of virtual servers.

If you want to communicate with the virual servers, outside the company, works with portforwarding.

The issue is, there is also a test environment in the trusted zone. From this place we must deploy ruby on rails applications to the live environment. Normally will this work with SSH, port 23. The question is now how can I be sure that I connect with SSH to the correct virtual server behind the NAT server.

I hope everything is a bit clear and you all understand it.

Greetings Mark

1. you can differentiate them with Server Name
2. If you don't want to change the name of the server, Create text file on root (/) or home directory of all (test and live) server and write the environment like TEST or LIVE inside the file.

Your second point is not clear for my, please explain it
Your first point Server Name? you mean domain name?

I believe that they meant that you can create a file and stick it in an obvious place and then look for that file. Put something in the file that will be meaningful to you as far as telling you what machine it is.
Not quite, rather the host name. The server should have a fully qualified name which is host@domain. Presumably all your machines will have the same domain name, but each one should have a unique host name.