2021-10-12 18:45:00 +00:00
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# Tailscale VPN
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2023-08-18 10:21:12 +00:00
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The [Tailscale VPN](https://tailscale.com/) can be used to access PiKVM from the Internet
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2023-08-18 04:54:46 +00:00
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when using [port forwarding](port_forwarding.md) is not possible or does not seem secure enough.
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Tailscale is a convenient and free (for private use) tool for organizing a small VPN network.
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2021-10-12 18:45:00 +00:00
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2023-08-18 10:21:12 +00:00
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Basic Tailscale usage like whats shown below is provided as an example,
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2023-08-18 04:54:46 +00:00
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any other setting or functionality needs to be redirected to the [Tailscale support](https://tailscale.com/contact/support/).
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2023-08-18 10:21:12 +00:00
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-----
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## Configuring the PiKVM
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2023-08-18 10:21:12 +00:00
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1. Install the client, run `tailscaled` service and register it in the network:
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```
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[root@pikvm ~]# rw
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[root@pikvm ~]# pacman -Syu
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[root@pikvm ~]# pacman -S tailscale-pikvm
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[root@pikvm ~]# systemctl enable --now tailscaled
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[root@pikvm ~]# tailscale up
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```
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2. Follow the link to authorize this installation.
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2023-08-19 08:47:11 +00:00
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3. After success, perform reboot to make sure that everything is working correctly:
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2023-08-19 03:55:15 +00:00
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```
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[root@pikvm ~]# reboot
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```
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4. Now you can try to view the IP address of Tailscale network interface:
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```
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[root@pikvm ~]# ip addr show tailscale0
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```
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2023-08-18 05:04:25 +00:00
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If everything is successful, PiKVM will become a member of your VPN network.
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2023-08-18 04:54:46 +00:00
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!!! warning
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**Do not update Tailscale if you don't have access to PiKVM without VPN,
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because on breaking change in Tailscale, you may lose access.**
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2023-08-18 05:04:25 +00:00
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Unfortunately sometimes updating the Tailscale client on PiKVM can cause problems.
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This is happening since Tailscale has weak support of read-only systems.
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2023-08-18 10:21:12 +00:00
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-----
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## Configuring a client device
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* [Download](https://tailscale.com/download) and install the Tailscale client for your OS
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to the system you are using (not to the system you want to control).
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* Check the [admin page](https://login.tailscale.com/admin/machines) to view your VPN network.
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* Follow the URL in the web browser: `https://<tailscale_kvm_ip>` and you will see PiKVM web interface.
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2022-09-04 19:01:44 +00:00
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2023-08-18 04:54:46 +00:00
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2023-08-18 10:21:12 +00:00
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-----
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## Troubleshooting
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2023-08-19 03:55:15 +00:00
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If something not work, the usual advice is to completely remove the Tailscale from PiKVM and perform a clean installation:
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```
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[root@pikvm ~]# rw
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[root@pikvm ~]# pacman -Rscnd tailscale
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[root@pikvm ~]# rm -rf /var/lib/tailscale /var/cache/tailscale
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[root@pikvm ~]# reboot
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```
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2023-08-18 10:21:12 +00:00
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Next, follow this page from the beginning to install the Tailscale again.
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