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27 lines
No EOL
1.8 KiB
Markdown
27 lines
No EOL
1.8 KiB
Markdown
# Portal And Server
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Evennia consists of two processes, known as *Portal* and *Server*. They can be controlled from
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inside the game or from the command line as described [in the Running-Evennia doc](../Setup/Running-Evennia.md).
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In short, the Portal knows everything about internet protocols (telnet, websockets etc), but knows very little about the game.
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In contrast, the Server knows everything about the game. It knows that a player has connected but now _how_ they connected.
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The effect of this is that you can fully `reload` the Server and have players still connected to the game. One the server comes back up, it will re-connect to the Portal and re-sync all players as if nothing happened.
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```
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Internet│ ┌──────────┐ ┌─┐ ┌─┐ ┌─────────┐
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│ │Portal │ │S│ ┌───┐ │S│ │Server │
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P │ │ ├─┤e├───┤AMP├───┤e├─┤ │
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l ──┼──┤ Telnet │ │s│ │ │ │s│ │ │
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a │ │ Webclient├─┤s├───┤ ├───┤s├─┤ Game │
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y ──┼──┤ SSH │ │i│ │ │ │i│ │ Database│
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e │ │ ... ├─┤o├───┤ ├───┤o├─┤ │
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r ──┼──┤ │ │n│ │ │ │n│ │ │
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s │ │ │ │s│ └───┘ │s│ │ │
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│ └──────────┘ └─┘ └─┘ └─────────┘
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│Evennia
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```
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The Server and Portal are glued together via an AMP (Asynchronous Messaging Protocol) connection. This allows the two programs to communicate seamlessly on the same machine. |