See AUTHORS.md for a list of third party code, where it is included, and the licenses that apply to it. Certain types of commercial use such as building closed-source apps and devices based on ZeroTier or offering ZeroTier network controllers and network management as a SaaS service require a commercial license.Ī small amount of third party code is also included in ZeroTier and is not subject to our BSL license.

ZeroTier is free to use internally in businesses and academic institutions and for non-commercial purposes. See LICENSE.txt and the ZeroTier pricing page for details. ZeroTier is licensed under the BSL version 1.1. Apps for Android and iOS are available for free in the Google Play and Apple app stores. Visit ZeroTier's site for more information and pre-built binary packages. The goals and design principles of ZeroTier are inspired by among other things the original Google BeyondCorp paper and the Jericho Forum with its notion of 'deperimeterization.'

Most traffic flows peer to peer, though we offer free (but slow) relaying for users who cannot establish peer to peer connections. Our VL2 Ethernet virtualization layer includes advanced enterprise SDN features like fine grained access control rules for network micro-segmentation and security monitoring.Īll ZeroTier traffic is encrypted end-to-end using secret keys that only you control. This is accomplished by combining a cryptographically addressed and secure peer to peer network (termed VL1) with an Ethernet emulation layer somewhat similar to VXLAN (termed VL2). It allows all networked devices, VMs, containers, and applications to communicate as if they all reside in the same physical data center or cloud region. ZeroTier is a smart programmable Ethernet switch for planet Earth. For information on using ZeroTier, see the: Website, Documentation Site, and Discussion Forum. This document is written for a software developer audience.

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