How do I set up Rocket Chat?

I have looked around but cannot find any definitive instructions on how to set up Rocket chat. Can someone please point me in the correct direction?

Chat+ Server Installation Instructions - Ubuntu

Chat+ Server Installation Instructions - CentOS

Chat+ Upgrade Instructions

Dolphin Connect Setup for Chat+

Thank you for the links.

I can appreciate that Chat+ and Rocket Chat are similar but these instructions explain how to install Chat+, not Rocket Chat.

Have I missed the point somehow?

How can setting up Chat+ result in having a Rocket Chat room?

Apologies if I am being thick.

I just can't seem to get my head around how to set up a Rocket Chatroom.

@Profsize Chat+ and Rocket Chat are exact same thing, the only thing you need to be aware of is that you need to follow Boonex Chat+ current release and NOT RC current release because Chat+ version has been modified a bit in order to be integrated with Oauth Dolphin.     

As you can see below releases links - one from Boonex and one from RC have different versions:

>> RC Release
https://github.com/RocketChat/Rocket.Chat/releases

which has version:  0.57.0-rc.2      

>> Boonex Release

https://github.com/boonex/dolphin.pro/wiki/ChatPlus-Upgrade

which has version:   ChatPlusServer-v.0.54.2

So you need to use ChatPlusServer-v.0.54.2 in which Boonex integrated Rocket Chat, which has become Chat+

However, if you don't want to use Chat+ Oauth option provided by Bonnex, you can then use the full version of Rocket Chat:   0.57.0-rc.2

AlexT from Dolphin team has done a great job in keeping Chat+ up to date, it is up to you which Mod you want to install on your server.

For chat+ upgrade, you can use these instructions:
https://github.com/boonex/dolphin.pro/wiki/ChatPlus-Upgrade

Lastly, this is an FYI for everyone else - RC latest release 0.57.0-rc.2  has some critical issues, I have installed it myself and it has also been confirmed on RC support channel that they are working on it. My advice is to stick with v0.56.0 and wait till v0.57.0 is released..  But if you use Bonnex version 0.54.2 you are pretty mush safe there too.

Hope this helps !