Add VPN port allocation

docs/Various/Infra.md

@@ -23,6 +23,22 @@ flowchart TD
     YOU[Curious visitor] --> INTERNET
 ```
 
+## VPN port allocation
+
+```mermaid
+flowchart LR
+
+    INTERNET[Internet] --> SSH[ssh.benpro.fr]
+    SSH --> MULLVAD
+    MULLVAD[Mullvad VPN\njp8-wireguard] --> JPTYO{JP-TYO}
+    JPTYO --> PORT_54902[Port 54902]
+    JPTYO --> PORT_56754[Port 56754]
+    PORT_54902 --> LXD[lxd.home.arpa]
+    PORT_56754 --> LXD
+    LXD --> |Port 54902| GIT[Container git:22]
+    LXD --> |Port 56754| CHOWME[Container chownme:22]
+```
+
 ## Backups flowchart
 
 ```mermaid