Add documentation around instances

[Sytten]

We need to do a better job explaining the concept of instances.

• Explain what a caido instance is
• Explain how to reset the instances (link to Common errors)
• Explain how to have multiple instances on the same machine

[Sytten]

Place this page in Internals

[Sytten]

• VPS = Virtual private server
• localhost = 127.0.0.1
• The logic unit in the Caido Ecosystem is the Caido Instance.
  • When you click start in Desktop, you start an instance
  • You can local instances (on your own machine) or remote instances (on your VPS, in the cloud, etc)
  • Instances register themselves in Caido cloud when they start
    • Instances are claimed by user at the first login
    • Nobody else can access this instance, it is bound to your account
    • They gain credentials unique to that instance, that is why you need to send --reset-credentials when you want to change account
• New instance = New instance connection
  • Local (L)
    • Connection name
    • Interface on which it listens
      • localhost = your own computer
      • all interface (0.0.0.0) = accessible from the network / internet
    • port
  • Remote (R)
    • Host + port
    • Test the connection to see if it is reachable