diff --git a/tailscale-headscale/headscale.md b/tailscale-headscale/headscale.md
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+# headscale server
+## Docker (Truenas Scale App)
+
+### user
+You need to be have at least one user. You can think of a user as one local network.
+```
+sudo docker exec ix-headscale-headscale-1 headscale users create <user>
+```
+
+List the users:
+```
+sudo docker exec ix-headscale-headscale-1 headscale users list
+```
+
+Add a key to a user:
+```
+sudo docker exec ix-headscale-headscale-1 headscale nodes register --user <user> --key <key>
+```
+
+### nodes/devices
+The nodes are the devices registered to a user/network.
+List the nodes:
+```
+sudo docker exec ix-headscale-headscale-1 headscale nodes list
+```
+
+### Creating key
+Normaly you just let the Truenas Client create the key for you.
+But if you want to run the docker app to add a device to a tailscale/headscale instance you need to manually create a key.
+```
+sudo docker exec ix-headscale-headscale-1 headscale preauthkeys create --user <user/uid> --reusable=false
+sudo docker exec ix-headscale-headscale-1 headscale preauthkeys create --user <user/uid> --reusable=true
+```
+You get the ID from listing all the Users. 
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diff --git a/tailscale-headscale/tailscale-client.md b/tailscale-headscale/tailscale-client.md
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+# Adding a client to headscale
+## headscale
+```
+sudo tailscale up --login-server <domain>
+```
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