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sources/tech/20200121 Syncthing- Open Source P2P File Syncing Tool.md
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[#]: collector: (lujun9972)
[#]: translator: (geekpi)
[#]: reviewer: ( )
[#]: publisher: ( )
[#]: url: ( )
[#]: subject: (Syncthing: Open Source P2P File Syncing Tool)
[#]: via: (https://itsfoss.com/syncthing/)
[#]: author: (Ankush Das https://itsfoss.com/author/ankush/)
Syncthing: Open Source P2P File Syncing Tool
======
_**Brief: Syncthing is an open-source peer-to-peer file synchronization tool that you can use for syncing files between multiple devices (including an Android phone).**_
Usually, we have a cloud sync solution like [MEGA][1] or Dropbox to have a backup of our files on the cloud while making it easier to share it.
But, what do you do if you want to sync your files across multiple devices without storing them on the cloud?
That is where [Syncthing][2] comes to the rescue.
### Syncthing: An open source tool to synchronize files across devices
![][3]
Syncthing lets you sync your files across multiple devices (including the support for Android smartphones). It primarily works through a web UI on Linux but also offers a GUI (to separately install).
However, Syncthing does not utilize the cloud at all – it is a [peer-to-peer][4] file synchronization tool. Your data doesn’t go to a central server. Instead, the data is synced with all the devices between them. So, it does not really replace the [typical cloud storage services on Linux][5].
To add remote devices, you just need the device ID (or simply scan the QR code), no IP addresses involved.
If you want a remote backup of your files – you should probably rely on the cloud.
![Syncthing GUI][6]
All things considered, Syncthing can come in handy for a lot of things. Technically, you can have your important files accessible on multiple systems securely and privately without worrying about anyone spying on your data.
For instance, you may not want to store some of the sensitive files on the cloud – so you can add other trusted devices to sync and keep a copy of those files.
Even though I described it briefly, there’s more to it and than meets the eye. I’d also recommend reading the [official FAQ][7] to clear some confusion on how it works – if you’re interested.
### Features of Syncthing
You probably do not want a lot of options in a synchronization tool – it should be dead simple to work reliably to sync your files.
Syncthing is indeed quite simple and easy to understand – even though it is recommended that you should go through the [documentation][8] if you want to use every bit of its functionality.
Here, I’ll highlight a few useful features of Syncthing:
#### Cross-Platform Support
![Syncthing on Android][9]
Being an open-source solution, it does support Windows, Linux, and macOS.
In addition to that, it also supports Android smartphones. You’ll be disappointed if you have an iOS device – so far, no plans for iOS support.
#### File Versioning
![Syncthing File Versioning][10]
Syncthing utilizes a variety of [File Versioning methods][11] to archive the old files if they are replaced or deleted.
By default, you won’t find it enabled. But, when you create a folder to sync, that’s when you will find the option to toggle the file versioning to your preferred method.
#### Easy To Use
While being a peer-to-peer file synchronization tool, it just works out of the box with no advanced tweaks.
However, it does let you configure advanced settings when needed.
#### Security & Privacy
Even though you do not share your data with any cloud service providers, there are still some connections made that might gain the attention of an eavesdropper. So, Syncthing makes sure the communication is secured using TLS.
In addition to that, there are solid authentication methods to ensure that only the devices/connections you allow explicitly will be granted access to sync/read data.
For Android smartphones, you can also force the traffic through Tor if you’re using the [Orbot app][12]. You’ll find several other options for Android as well.
#### Other Functionalities
![][13]
When exploring the tool yourself, you will notice that there are no limits to how many folders you can sync and the number of devices that you can sync.
So, being a free and open-source solution with lots of useful features makes it an impressive choice for Linux users looking to have a peer-to-peer sync client.
### Installing Syncthing on Linux
You may not observe a .deb file or an .AppImage file for it on its official download webpage. But, you do get a snap package on the [Snap store][14] – if you’re curious you can read about [using snap apps][15] on Linux to get started.
You may not find it in the software center (if you do – it may not be the latest version).
**Note:** _There’s also a [Syncthing-GTK][16] available if you want a GUI to manage that – instead of a browser._
[Syncthing][2]
You can also utilize the terminal to get it installed if you have a Debian-based distro – the instructions are on the [official download page][17].
### My experience with Syncthing
Personally, I got it installed on Pop!_OS 19.10 and used it for a while before writing this up.
I tried syncing folders, removing them, adding duplicate files to see how the file versioning works, and so on. It worked just fine.
However, when I tried syncing it to a phone (Android) – the sync started a bit late, it wasn’t very quick. So, if we could have an option to explicitly force sync, that could help. Or, did I miss the option? Let me know in the comments if I did.
Technically, it uses the resources of your system to work – so if you have a number of devices connected to sync, it should potentially improve the sync speed (upload/download).
Overall, it works quite well – but I must say that you shouldn’t rely on it as the only backup solution to your data.
**Wrapping Up**
Have you tried Syncthing yet? If yes, how was your experience with it? Feel free to share it in the comments below.
Also, if you know about some awesome alternatives to this – let me know about it as well.
--------------------------------------------------------------------------------
via: https://itsfoss.com/syncthing/
作者：[Ankush Das][a]
选题：[lujun9972][b]
译者：[译者ID](https://github.com/译者ID)
校对：[校对者ID](https://github.com/校对者ID)
本文由 [LCTT](https://github.com/LCTT/TranslateProject) 原创编译，[Linux中国](https://linux.cn/) 荣誉推出
[a]: https://itsfoss.com/author/ankush/
[b]: https://github.com/lujun9972
[1]: https://itsfoss.com/install-mega-cloud-storage-linux/
[2]: https://syncthing.net/
[3]: https://i0.wp.com/itsfoss.com/wp-content/uploads/2020/01/syncthing-screenshot.jpg?ssl=1
[4]: https://en.wikipedia.org/wiki/Peer-to-peer
[5]: https://itsfoss.com/cloud-services-linux/
[6]: https://i1.wp.com/itsfoss.com/wp-content/uploads/2020/01/syncthing-gtk.png?ssl=1
[7]: https://docs.syncthing.net/users/faq.html
[8]: https://docs.syncthing.net/users/index.html
[9]: https://i0.wp.com/itsfoss.com/wp-content/uploads/2020/01/syncthing-android.jpg?ssl=1
[10]: https://i2.wp.com/itsfoss.com/wp-content/uploads/2020/01/syncthing-file-versioning.jpg?ssl=1
[11]: https://docs.syncthing.net/users/versioning.html
[12]: https://play.google.com/store/apps/details?id=org.torproject.android&hl=en_IN
[13]: https://i2.wp.com/itsfoss.com/wp-content/uploads/2020/01/syncthing-screenshot1.jpg?ssl=1
[14]: https://snapcraft.io/syncthing
[15]: https://itsfoss.com/install-snap-linux/
[16]: https://github.com/syncthing/syncthing-gtk/releases/latest
[17]: https://syncthing.net/downloads/

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[#]: collector: (lujun9972)
[#]: translator: (geekpi)
[#]: reviewer: ( )
[#]: publisher: ( )
[#]: url: ( )
[#]: subject: (Syncthing: Open Source P2P File Syncing Tool)
[#]: via: (https://itsfoss.com/syncthing/)
[#]: author: (Ankush Das https://itsfoss.com/author/ankush/)
Syncthing：开源 P2P 文件同步工具
======
_ **简介：Syncthing 是一个开源的 P2P 文件同步工具，可用于在多个设备（包括 Android 手机）之间同步文件。** _
通常，我们有 [MEGA][1] 或 Dropbox 之类的云同步解决方案，以便在云上备份我们的文件，同时更易于共享。
但是，如果要跨多个设备同步文件而不将其存储在云中怎么办？
这就是 [Syncthing][2] 派上用场的地方了。
### Syncthing：一个跨设备同步文件的开源工具
![][3]
Syncthing 可让你跨多个设备同步文件（包括对 Android 智能手机的支持）。它主要通过 Linux上 的 Web UI 进行工作，但也提供了 GUI（需要单独安装）。
然而，Syncthing 完全没有利用云，它是 [P2P][4] 文件同步工具。你的数据不会被发送到中央服务器。而是会在所有设备之间同步。因此，它并不能真正取代 [Linux 上的典型云存储服务][5]。
要添加远程设备，你只需要设备 ID（或直接扫描二维码），而无需 IP 地址。
如果你想要远程备份文件，那么你可能应该依靠云。
![Syncthing GUI][6]
考虑到所有因素，Syncthing 可以在很多方面派上用场。从技术上讲，你可以安全、私密地在多个系统上访问重要文件，而不必担心有人监视你的数据。
例如，你可能不想在云上存储一些敏感文件，因此你可以添加其他受信任的设备来同步并保留这些文件的副本。
即使我简单描述了它，但它并不像看到的那么简单。如果你感兴趣的话，我建议你阅读[官方 FAQ][7] 来了解它如何工作的。
### Syncthing 的特性
你可能不希望同步工具中有很多选项。它要可靠地同步文件，应该非常简单。
Syncthing 确实非常简单且易于理解。即使这样，如果你想使用它的所有功能，那么也建议你阅读它的[文档][8]。
在这里，我将重点介绍 Syncthing 的一些有用特性：
#### 跨平台支持
![Syncthing on Android][9]
作为开源解决方案，它支持 Windows、Linux 和 macOS。
除此之外，它还支持 Android 智能手机。如果你使用的是 iOS 设备，那么你会感到失望。到目前为止，它还没有支持 iOS 的计划。
#### 文件版本控制
![Syncthing File Versioning][10]
如果替换或删除了旧文件，那么 Syncthing 会利用各种[文件版本控制方法][11]来存档旧文件。
默认情况下，你不会发现它启用。但是，当你创建一个要同步的文件夹时，你将找到将文件版本控制切换为首选方法的选项。
#### 易于使用
作为 P2P 文件同步工具，它无需高级调整即可使用。
但是，它允许你在需要时配置高级设置。
#### 安全和隐私
即使你不与任何云服务提供商共享数据，仍会有一些连接可能会引起窃听者的注意。因此，Syncthing 使用 TLS 保护通信。
此外，它还有可靠的身份验证方法，以确保仅授予只有你允许的设备/连接能够取得同步/读取数据的权限。
对于 Android 智能手机，如果你使用 [Orbot 应用][12]，你还可以强制将流量通过 Tor。在 Android 中你还有几个不同选择。
#### 其他功能
![][13]
当你探索这个工具时，你会注意到可以同步的文件夹数和可同步的设备数没有限制。
因此，作为一个有着丰富有用特性的自由开源解决方案，对于在寻找 P2P 同步客户端的 Linux 用户而言是一个令人印象深刻的选择。
### 在 Linux 上安装 Syncthing
你可能无法在官网上找到 .deb 或者 .AppImage 文件。但是，你可在 [Snap 商店][14]中找到 snap 包。如果你好奇，你可以阅读在 Linux 上[使用 snap 应用][15]的文章来开始使用。
你可能无法在软件中心找到它（如果你找到了，那它可能不是最新版本）。
**注意：**_如果你需要一个 GUI 而不是浏览器来管理它，它还有一个 [Syncthing-GTK][16]。_
[Syncthing][2]
如果你有基于 Debian 的发行版，你也可以利用终端来安装它，这些说明位于[官方下载页面][17] 上。
### 我在 Syncthing 方面的体验
就个人而言，我把它安装在 Pop!\_OS 19.10 上，并在写这篇文章之前用了一会儿。
我尝试同步文件夹、删除它们、添加重复文件以查看文件版本控制是否工作，等等。它工作良好。
然而，当我尝试同步它到手机（安卓），同步启动有点晚，它不是很快。因此，如果我们可以选择显式强制同步，那会有所帮助。或者，我错过了什么选项吗？如果是的话，请在评论中让我知道。
从技术上讲，它使用系统资源来工作，因此，如果你连接了多个设备进行同步，这可能会提高同步速度（上传/下载）。
总体而言，它工作良好，但我必须说，你不应该依赖它作为唯一的数据备份方案。
**总结**
你试过 Syncthing 了吗？如果有的话，你的体验如何？欢迎在下面的评论中分享。
此外，如果你知道一些不错的替代品，也请让我知道。
--------------------------------------------------------------------------------
via: https://itsfoss.com/syncthing/
作者：[Ankush Das][a]
选题：[lujun9972][b]
译者：[geekpi](https://github.com/geekpi)
校对：[校对者ID](https://github.com/校对者ID)
本文由 [LCTT](https://github.com/LCTT/TranslateProject) 原创编译，[Linux中国](https://linux.cn/) 荣誉推出
[a]: https://itsfoss.com/author/ankush/
[b]: https://github.com/lujun9972
[1]: https://itsfoss.com/install-mega-cloud-storage-linux/
[2]: https://syncthing.net/
[3]: https://i0.wp.com/itsfoss.com/wp-content/uploads/2020/01/syncthing-screenshot.jpg?ssl=1
[4]: https://en.wikipedia.org/wiki/Peer-to-peer
[5]: https://itsfoss.com/cloud-services-linux/
[6]: https://i1.wp.com/itsfoss.com/wp-content/uploads/2020/01/syncthing-gtk.png?ssl=1
[7]: https://docs.syncthing.net/users/faq.html
[8]: https://docs.syncthing.net/users/index.html
[9]: https://i0.wp.com/itsfoss.com/wp-content/uploads/2020/01/syncthing-android.jpg?ssl=1
[10]: https://i2.wp.com/itsfoss.com/wp-content/uploads/2020/01/syncthing-file-versioning.jpg?ssl=1
[11]: https://docs.syncthing.net/users/versioning.html
[12]: https://play.google.com/store/apps/details?id=org.torproject.android&hl=en_IN
[13]: https://i2.wp.com/itsfoss.com/wp-content/uploads/2020/01/syncthing-screenshot1.jpg?ssl=1
[14]: https://snapcraft.io/syncthing
[15]: https://itsfoss.com/install-snap-linux/
[16]: https://github.com/syncthing/syncthing-gtk/releases/latest
[17]: https://syncthing.net/downloads/