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truecharts/charts/stable/tailscale/docs/How-To-Guide.md
StevenMcElligott 403ad1fa06 feat(tailscale): Enable userspace by default and update docs (#3967)
* feat(tailscale): Enable userspace by default and update docs

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* Update charts/stable/tailscale/docs/How-To-Guide.md

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Signed-off-by: Stavros Kois <47820033+stavros-k@users.noreply.github.com>
Co-authored-by: Stavros Kois <47820033+stavros-k@users.noreply.github.com>
2022-09-30 16:17:48 +02:00

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# How-To
This is a quick how-to or setup-guide to use Tailscale using on your TrueNAS box.
This can be applied to other systems but this specific guide is SCALE specific with the prerequisites.
## Requirements
- Tailscale Account (Free accounts available at [Tailscale's Official website](https://www.tailscale.com))
- Tailscale Truecharts Chart
## Prerequisites (LAN access only)
For proper access to your local network (LAN), this chart requires two `sysctl` values set on your TrueNAS or system.
For TrueNAS SCALE the way to change these values are inside `System Settings` then `Advanced`.
On that screen you add the following two values:
- `net.ipv4.ip_forward`
- `net.ipv4.conf.all.src_valid_mark`
Set them to `1` and `Enabled`
![sysctl](img/Sysctl.png)
Also prepare your Tailscale Auth Key for your setup, easy to generate on the page below
![tailscale-auth-key](img/How-To-Image-1.png)
## Tailscale Chart Setup
### Application name
Ideally use `tailscale` but you can use any name here.
### Controller
Leave defaults here.
### Container Configuration
- `Auth Key`: The key you received from tailscale in prerequisites above
- `Userspace`: Now enabled by default, as it is _required_ when using local routes and as an exit node (see below). However may need to be _unchecked_ if you need give Tailscale full access to all the features inside scale (not just GUI/SMB, but Rsync, ping other Tailscale IPs, etc). More info in the [Tailscale Userspace Guide](https://tailscale.com/kb/1112/userspace-networking/).
- `Accept DNS`: Enabling it will pass your Global Nameservers from Tailscale to your local install.
- `Routes`: Change to the routes you wish Tailscale to have access to on the devices it's connected, such as my LAN in the example.
- `Extra Args` passes arguments/flags to the `tailscale up` command.
- `Hostname` You can specify a specific hostname for use inside Tailscale (see image below). (Passes `--hostname HOSTNAME` to `Extra args`)
- `Advertise as exit node` This is used to pass traffic through tailscale like a private VPN. (Passes `--advertise-exit-node` to `Extra args`)
For more Extra Args and their usage please check the [Tailscale Knowledge Base](https://tailscale.com/kb/1080/cli/#up)
since we consider these advanced features and these may/not be compatible with everyone's exact setup.
TODO: Update image with the new fields
![tailscale-step-3](img/How-To-Image-2.png)
**Hostname example**
![hostname-example](img/Hostname.png)
### Networking and Services
The default ports are fine for this chart, you shouldn't need to port forward or open ports on your router.
:::caution
In case you want to access their SMB shares or TrueNAS GUI via Tailscale.
You will have to ensure that `Host Networking` is enabled and `Userspace` is disabled.
:::
![tailscale-step-4](img/How-To-Image-3.png)
### Storage and Persistence
Highly recommended to leave it as `PVC (Simple)`
### Ingress
Shouldn't need to enable this.
### Security and Permissions
Should be left as is, unless you know what you are doing!
### Resources and Devices
You can set custom resources for CPU/RAM, but defaults should be work fine in most cases
Defaults are 4 vCores and 8G RAM.
### Addons
Shouldn't need to enable any.
## Support
- You can also reach us using [Discord](https://discord.gg/tVsPTHWTtr) for real-time feedback and support
- If you found a bug in our chart, open a Github [issue](https://github.com/truecharts/apps/issues/new/choose)
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