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truecharts/charts/stable/zerotier/docs/How-To-Guide.md
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---
title: How-To
---
This is a quick how-to or setup-guide to use Zerotier using on your TrueNAS box.
This can be applied to other systems but this specific guide is SCALE specific with the prerequisites.
## Requirements
- Zerotier Account (Free accounts available at [Zerotier's Official website](https://www.zerotier.com))
- Zerotier 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 Zerotier Network ID for your setup, easy to create and copy at [https://my.zerotier.com](https://my.zerotier.com)
![Zerotier Network ID](./img/Network-ID.png)
## Zerotier Chart Setup
Ideally name your chart `Zerotier` but you can use any name here and leave defaults for Step 2
### Global Pod Options
This section is hidden by default for TrueNAS SCALE but if you wish to use `Host-Networking` or create an interface inside TrueNAS SCALE (`zerotier creates a network interface`)
- Click `Expert - Pod Options`
- Click the checkbox for `Host-Networking` if it isn't enabled
### App Configuration
- `ZEROTIER_API_SECRET`: Replaces the authtoken.secret before booting and allows you to manage the control socket's authentication key
- `ZEROTIER_IDENTITY_PUBLIC`: The identity.public file for zerotier-one. Use zerotier-idtool to generate one of these for you.
- `ZEROTIER_IDENTITY_SECRET`: The identity.secret file for zerotier-one. Use zerotier-idtool to generate one of these for you.
![How-To-Step-2](./img/How-To-Step-2.png)
### Extra Args
If you wish to automatically join a specific Zerotier Network upon startup simply enter the `Network-ID` in this space.
**Note** This is not required for the chart to run and may not always work.
![How-To-Step-1](./img/How-To-Step-1.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.
## 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)
---
All Rights Reserved - The TrueCharts Project