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124 lines
4.2 KiB
Markdown
124 lines
4.2 KiB
Markdown
# Yggdrasil
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[](https://circleci.com/gh/yggdrasil-network/yggdrasil-go)
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## Introduction
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Yggdrasil is an early-stage implementation of a fully end-to-end encrypted IPv6
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network. It is lightweight, self-arranging, supported on multiple platforms and
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allows pretty much any IPv6-capable application to communicate securely with
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other Yggdrasil nodes. Yggdrasil does not require you to have IPv6 Internet
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connectivity - it also works over IPv4.
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Although Yggdrasil shares many similarities with
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[cjdns](https://github.com/cjdelisle/cjdns), it employs a different routing
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algorithm based on a globally-agreed spanning tree and greedy routing in a
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metric space, and aims to implement some novel local backpressure routing
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techniques. In theory, Yggdrasil should scale well on networks with
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internet-like topologies.
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## Supported Platforms
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We actively support the following platforms, and packages are available for
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some of the below:
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- Linux
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- `.deb` and `.rpm` packages are built by CI for Debian and Red Hat-based
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distributions
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- Void and Arch packages also available within their respective repositories
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- macOS
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- `.pkg` packages are built by CI
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- Ubiquiti EdgeOS
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- `.deb` Vyatta packages are built by CI
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- Windows
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- FreeBSD
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- OpenBSD
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- OpenWrt
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Please see our [Platforms](https://yggdrasil-network.github.io/platforms.html) pages for more
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specific information about each of our supported platforms, including
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installation steps and caveats.
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You may also find other platform-specific wrappers, scripts or tools in the
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`contrib` folder.
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## Building
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If you want to build from source, as opposed to installing one of the pre-built
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packages:
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1. Install [Go](https://golang.org) (requires Go 1.13 or later)
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2. Clone this repository
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2. Run `./build`
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Note that you can cross-compile for other platforms and architectures by
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specifying the `GOOS` and `GOARCH` environment variables, e.g. `GOOS=windows
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./build` or `GOOS=linux GOARCH=mipsle ./build`.
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## Running
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### Generate configuration
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To generate static configuration, either generate a HJSON file (human-friendly,
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complete with comments):
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```
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./yggdrasil -genconf > /path/to/yggdrasil.conf
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```
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... or generate a plain JSON file (which is easy to manipulate
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programmatically):
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```
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./yggdrasil -genconf -json > /path/to/yggdrasil.conf
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```
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You will need to edit the `yggdrasil.conf` file to add or remove peers, modify
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other configuration such as listen addresses or multicast addresses, etc.
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### Run Yggdrasil
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To run with the generated static configuration:
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```
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./yggdrasil -useconffile /path/to/yggdrasil.conf
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```
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To run in auto-configuration mode (which will use sane defaults and random keys
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at each startup, instead of using a static configuration file):
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```
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./yggdrasil -autoconf
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```
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You will likely need to run Yggdrasil as a privileged user or under `sudo`,
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unless you have permission to create TUN/TAP adapters. On Linux this can be done
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by giving the Yggdrasil binary the `CAP_NET_ADMIN` capability.
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## Documentation
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Documentation is available on our [GitHub
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Pages](https://yggdrasil-network.github.io) site, or in the base submodule
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repository within `doc/yggdrasil-network.github.io`.
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- [Configuration file options](https://yggdrasil-network.github.io/configuration.html)
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- [Platform-specific documentation](https://yggdrasil-network.github.io/platforms.html)
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- [Frequently asked questions](https://yggdrasil-network.github.io/faq.html)
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- [Admin API documentation](https://yggdrasil-network.github.io/admin.html)
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- [Version changelog](CHANGELOG.md)
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## Community
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Feel free to join us on our [Matrix
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channel](https://matrix.to/#/#yggdrasil:matrix.org) at `#yggdrasil:matrix.org`
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or in the `#yggdrasil` IRC channel on Freenode.
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## License
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This code is released under the terms of the LGPLv3, but with an added exception
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that was shamelessly taken from [godeb](https://github.com/niemeyer/godeb).
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Under certain circumstances, this exception permits distribution of binaries
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that are (statically or dynamically) linked with this code, without requiring
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the distribution of Minimal Corresponding Source or Minimal Application Code.
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For more details, see: [LICENSE](LICENSE).
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