and vice versa.
For issue #1104
With some printf debugging, I was seeing:
here, src fe80::3c7a:2dff:fe0c:21ed, target 10.147.20.0, matchingPrefixBits 0, mostMatchingPrefixBits 0
here, src fd8b:d512:4fd6:255:3c99:932f:2fda:6eff, target 10.147.20.0, matchingPrefixBits 0, mostMatchingPrefixBits 0
and (matchingPrefixBits >= mostMatchingPrefixBits) would be true
Then on mac, somewhere downstream from there, the default route would
get messed up:
default via 92:29:f1:6f:2f:76 dev en0
- Can now provide the following environment variables to populate
secrets (nice for kubernetes, other situations)
- ZEROTIER_API_SECRET: authtoken.secret
- ZEROTIER_IDENTITY_PUBLIC: identity.public
- ZEROTIER_IDENTITY_SECRET: identity.secret
- Joining networks by providing them as a part of docker's "command"
array should now work properly
Signed-off-by: Erik Hollensbe <linux@hollensbe.org>
On certain OSes (Linux & Apple) tun#, tap#, and of course zt# are blacklisted by default, this adds wg# to the list as WireGuard is a similar popular service with wg# being the default adapter name(s) by convention.
@@ -12,4 +12,4 @@ Are you having trouble connecting to a game on your virtual network after instal
- [ ] Yes
- [ ] No
If you answered yes, then it is very likely that your question would be better answered on our [Discuss ](https://discuss.zerotier.com) forum or [Reddit](https://www.reddit.com/r/zerotier/) community; we monitor both regularly. We also have extensive documentation on our [Knowledge Base](https://zerotier.atlassian.net/wiki/spaces/SD/overview). Thank you!
If you answered yes, then it is very likely that your question would be better answered on our [Community Forums](https://discuss.zerotier.com) or [Reddit](https://www.reddit.com/r/zerotier/) community; we monitor both regularly. We also have extensive documentation on our [Knowledge Base](https://zerotier.atlassian.net/wiki/spaces/SD/overview). Thank you!
@@ -14,7 +14,6 @@ The version must be incremented in all of the following files:
/debian/changelog
/ext/installfiles/mac/ZeroTier One.pkgproj
/ext/installfiles/windows/ZeroTier One.aip
/windows/WinUI/AboutView.xaml
The final .AIP file can only be edited on Windows with [Advanced Installer Enterprise](http://www.advancedinstaller.com/). In addition to incrementing the version be sure that a new product code is generated. (The "upgrade code" GUID on the other hand must never change.)
**NOTE:**_Most of this information pertains to the docker image only. For more information about ZeroTier, check out the repository_: [here](https://github.com/zerotier/ZeroTierOne) or the [commercial website](https://www.zerotier.com).
[ZeroTier](https://www.zerotier.com) is a smart programmable Ethernet switch for planet Earth. 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.
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). Our VL2 Ethernet virtualization layer includes advanced enterprise SDN features like fine grained access control rules for network micro-segmentation and security monitoring.
All ZeroTier traffic is encrypted end-to-end using secret keys that only you control. Most traffic flows peer to peer, though we offer free (but slow) relaying for users who cannot establish peer to peer connections.
The goals and design principles of ZeroTier are inspired by among other things the original [Google BeyondCorp](https://static.googleusercontent.com/media/research.google.com/en//pubs/archive/43231.pdf) paper and the [Jericho Forum](https://en.wikipedia.org/wiki/Jericho_Forum) with its notion of "deperimeterization."
Visit [ZeroTier's site](https://www.zerotier.com/) for more information and [pre-built binary packages](https://www.zerotier.com/download/). Apps for Android and iOS are available for free in the Google Play and Apple app stores.
ZeroTier is licensed under the [BSL version 1.1](https://mariadb.com/bsl11/). See [LICENSE.txt](https://github.com/zerotier/ZeroTierOne/blob/master/LICENSE.txt) and the [ZeroTier pricing page](https://www.zerotier.com/pricing) for details. ZeroTier is free to use internally in businesses and academic institutions and for non-commercial purposes. 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.
A small amount of third party code is also included in ZeroTier and is not subject to our BSL license. See [AUTHORS.md](https://github.com/zerotier/ZeroTierOne/blob/master/AUTHORS.md) for a list of third party code, where it is included, and the licenses that apply to it. All of the third party code in ZeroTier is liberally licensed (MIT, BSD, Apache, public domain, etc.).
## Building the docker image
Due to the network being a substrate for most applications and not an application unto itself, it makes sense that many people would want to build their own image based on our formula.
The image is based on `debian:buster`.
The `Dockerfile.release` file contains build instructions for building the described image in the rest of the README. The build is multi-arch and multi-release capable.
These build arguments power the build:
-`PACKAGE_BASEURL`: The base URL of the package repository to fetch from. (default: `https://download.zerotier.com/debian/buster/pool/main/z/zerotier-one/`)
-`ARCH`: The architecture of the package, in debian format. Must match your image arch. (default: `amd64`)
-`VERSION`: **REQUIRED** the version of ZeroTier to fetch.
The `entrypoint.sh` in the docker image is a little different; zerotier will be spawned in the background and the "main process" is actually just a sleeping shell script. This allows `zerotier-one` to gracefully terminate in some situations largely unique to docker.
The `zerotier/zerotier` image requires the `CAP_NET_ADMIN` capability and the `/dev/net/tun` device must be forwarded to it.
To join a network, simply supply it on the command-line; you can supply multiple networks.
Once joining all the networks you have provided, it will sleep until terminated. Note that in ZeroTier, joining a network does not necessarily mean you have an IP or can do anything, really. You will want to probe the control socket:
```
docker exec myzerotier zerotier-cli listnetworks
```
To ensure you have a network available before trying to listen on it. Without pre-configuring the identity, this usually means going to the central admin panel and clicking the checkmark against your zerotier identity.
### Environment Variables
You can control a few settings including the identity used and the authtoken used to interact with the control socket (which you can forward and access through `localhost:9993`).
-`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.
### Tips
- Forwarding port `<dockerip>:9993` to somewhere outside is probably a good idea for highly trafficked services.
- Forwarding `localhost:9993` to a control network where you can drive it remotely might be a good idea, just be sure to set your authtoken properly through environment variables.
- Pre-generating your identities could be much simpler to do via our [terraform plugin](https://github.com/zerotier/terraform-provider-zerotier)
This document is written for a software developer audience. For information on using ZeroTier, see the: [Website](https://www.zerotier.com), [Documentation Site](https://docs.zerotier.com), and [Discussion Forum](https://discuss.zerotier.com)
ZeroTier is a smart programmable Ethernet switch for planet Earth. 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.
@@ -13,7 +14,7 @@ Visit [ZeroTier's site](https://www.zerotier.com/) for more information and [pre
ZeroTier is licensed under the [BSL version 1.1](https://mariadb.com/bsl11/). See [LICENSE.txt](LICENSE.txt) and the [ZeroTier pricing page](https://www.zerotier.com/pricing) for details. ZeroTier is free to use internally in businesses and academic institutions and for non-commercial purposes. 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.
A small amount of third party code is also included in ZeroTier and is not subject to our BSL license. See [AUTHORS.md] for a list of third party code, where it is included, and the licenses that apply to it. All of the third party code in ZeroTier is liberally licensed (MIT, BSD, Apache, public domain, etc.).
A small amount of third party code is also included in ZeroTier and is not subject to our BSL license. See [AUTHORS.md](AUTHORS.md) for a list of third party code, where it is included, and the licenses that apply to it. All of the third party code in ZeroTier is liberally licensed (MIT, BSD, Apache, public domain, etc.).
### Getting Started
@@ -44,7 +45,7 @@ The base path contains the ZeroTier One service main entry point (`one.cpp`), se
### Build and Platform Notes
To build on Mac and Linux just type `make`. On FreeBSD and OpenBSD `gmake` (GNU make) is required and can be installed from packages or ports. For Windows there is a Visual Studio solution in `windows/'.
To build on Mac and Linux just type `make`. On FreeBSD and OpenBSD `gmake` (GNU make) is required and can be installed from packages or ports. For Windows there is a Visual Studio solution in `windows/`.
- **Mac**
- Xcode command line tools for OSX 10.8 or newer are required.
@@ -64,15 +65,17 @@ Typing `make selftest` will build a *zerotier-selftest* binary which unit tests
### Running
Running *zerotier-one* with -h will show help.
Running *zerotier-one* with `-h` option will show help.
On Linux and BSD you can start the service with:
On Linux and BSD, if you built from source, you can start the service with:
sudo ./zerotier-one -d
On most distributions, macOS, and Windows, the installer will start the service and set it up to start on boot.
A home folder for your system will automatically be created.
The service is controlled via the JSON API, which by default is available at 127.0.0.1 port 9993. We include a *zerotier-cli* command line utility to make API calls for standard things like joining and leaving networks. The *authtoken.secret* file in the home folder contains the secret token for accessing this API. See README.md in [service/](service/) for API documentation.
The service is controlled via the JSON API, which by default is available at 127.0.0.1 port 9993. We include a *zerotier-cli* command line utility to make API calls for standard things like joining and leaving networks. The *authtoken.secret* file in the home folder contains the secret token for accessing this API. See [service/README.md](service/README.md) for API documentation.
Here's where home folders live (by default) on each OS:
@@ -81,21 +84,15 @@ Here's where home folders live (by default) on each OS:
* **Windows**: `\ProgramData\ZeroTier\One` (That's for Windows 7. The base 'shared app data' folder might be different on different Windows versions.)
Running ZeroTier One on a Mac is the same, but OSX requires a kernel extension. We ship a signed binary build of the ZeroTier tap device driver, which can be installed on Mac with:
sudo make install-mac-tap
This will create the home folder for Mac, place *tap.kext* there, and set its modes correctly to enable ZeroTier One to manage it with *kextload* and *kextunload*.
### Basic Troubleshooting
For most users, it just works.
If you are running a local system firewall, we recommend adding a rule permitting UDP port 9993 inbound and outbound. If you installed binaries for Windows this should be done automatically. Other platforms might require manual editing of local firewall rules depending on your configuration.
If you are running a local system firewall, we recommend adding a rules permitting zerotier. If you installed binaries for Windows this should be done automatically. Other platforms might require manual editing of local firewall rules depending on your configuration.
The Mac firewall can be found under "Security" in System Preferences. Linux has a variety of firewall configuration systems and tools. If you're using Ubuntu's *ufw*, you can do this:
See the [documentation site](https://docs.zerotier.com/zerotier/troubleshooting) for more information.
sudo ufw allow 9993/udp
The Mac firewall can be found under "Security" in System Preferences. Linux has a variety of firewall configuration systems and tools.
On CentOS check `/etc/sysconfig/iptables` for IPTables rules. For other distributions consult your distribution's documentation. You'll also have to check the UIs or documentation for commercial third party firewall applications like Little Snitch (Mac), McAfee Firewall Enterprise (Windows), etc. if you are running any of those. Some corporate environments might have centrally managed firewall software, so you might also have to contact IT.
@@ -105,4 +102,4 @@ Users behind certain types of firewalls and "symmetric" NAT devices may not able
If a firewall between you and the Internet blocks ZeroTier's UDP traffic, you will fall back to last-resort TCP tunneling to rootservers over port 443 (https impersonation). This will work almost anywhere but is *very slow* compared to UDP or direct peer to peer connectivity.
Additional help [can be found in our knowledge base](https://zerotier.atlassian.net/wiki/spaces/SD/overview).
Additional help can be found in our [knowledge base](https://zerotier.atlassian.net/wiki/spaces/SD/overview).
* Fix numerous UI issues from 1.8.0 (never fully released).
* Remove support for REALLY ancient 1.1.6 or earlier network controllers.
* MacOS IPv6 no longer binds to temporary addresses as these can cause interruptions if they expire.
* Added additional hardening against address impersonation on networks (also in 1.6.6).
* Fix an issue that could cause clobbering of MacOS IP route settings on restart.
* NOTE: Windows 7 is no longer supported! Windows 7 users will have to use version 1.6.5 or earlier.
# 2021-09-15 -- Version 1.8.0 (preview release only)
* A *completely* rewritten desktop UI for Mac and Windows!
* Implement a workaround for one potential source of a "coma" bug, which can occur if buggy NATs/routers stop allowing the service to communicate on a given port. ZeroTier now reassigns a new secondary port if it's offline for a while unless a secondary port is manually specified in local.conf. Working around crummy buggy routers is an ongoing effort.
* Fix for MacOS MTU capping issue on feth devices
* Fix for mistakenly using v6 source addresses for v4 routes on some platforms
* Stop binding to temporary IPv6 addresses
* Set MAC address before bringing up Linux TAP link
* Check if DNS servers need to be applied on macOS
* Upgrade json.hpp dependency to version 3.10.2
# 2021-09-21 -- Version 1.6.6
* Backport COM hash check mitigation against network member impersonation.
# 2021-04-13 -- Version 1.6.5
* Fix a bug in potential network path filtering that could in some circumstances lead to "software laser" effects.
* Fix a printf overflow in zerotier-cli (not exploitable or a security risk)
* Windows now looks up the name of ZeroTier devices instead of relying on them having "ZeroTier" in them.
# 2021-02-15 -- Version 1.6.4
* The groundhog saw his shadow, which meant that the "connection coma" bug still wasn't gone. We think we found it this time.
# 2021-02-02 -- Version 1.6.3
* Likely fix for GitHub issue #1334, an issue that could cause ZeroTier to
go into a "coma" on some networks.
* Also groundhog day
# 2020-11-30 -- Version 1.6.2
* Fix an ARM hardware AES crypto issue (not an exploitable vulnerability).
* Fix a Linux network leave hang due to a mutex deadlock.
# 2020-11-24 -- Version 1.6.1
This release fixes some minor bugs and other issues in 1.6.0.
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