4 # Install and configure `syncthing`
6 Created by [Steven Baltakatei Sandoval][bktei_2020_homepage] on 2020-04-27T14:37Z under a [CC BY-SA 4.0][cc_20131125_bysa] license and last updated on 2020-04-27T16:28Z.
10 Syncthing is a decentralized file-synchronization program that permits
11 sharing of files over the Internet with computers that have been
12 configured to trust one another.
16 The following are instructions for installing Syncthing onto a GNU/Linux Debian 10 machine.
18 ### 2.1. Install `syncthing` via `apt-get`
20 Update the local repository package lists with `$ sudo apt-get update`.
22 Install the `syncthing` package with `$ sudo apt-get install syncthing`.
24 Note: As of 2020-04-27, Debian 10 Buster uses Syncthing version `1.0.0`.
26 ### 2.2. Enable automatic startup via `systemd` service.
28 Syncthing can be started automatically via `systemd` as a system
29 service upon boot or a user service upon login. If `syncthing` was
30 installed from the Debian 10 repository (ex: via `apt-get`), then the
31 necessary service files (ex: `syncthing@.service` ) should already be
32 installed. If not, see the detailed autostart instructions for where
33 to download a copy of the service
34 files.<sup>[[1]](#syncthing_20200331_autostart)</sup>
36 #### 2.2.a. Enable automatic startup via `systemd` upon boot (system service).
38 For a system service, identify the user under which to run
39 `syncthing`. Even though `syncthing` will be run upon startup (without
40 needing a user to login first), files cannot be created or modified by
41 `syncthing` with permissions of a specified user. In this example,
42 `baltakatei` will be the user. This means an appropriate directory for
43 a `syncthing` shared folder would be `/home/baltakatei/Sync/`.
45 Alternatively, if `syncthing` were running as a headless server where
46 no user is expected to directly modify files in the server's file
47 system, then a dedicated dummy user named `syncthing-user` might be
50 The commands to create a `systemd` system service under user
53 $ sudo systemctl enable syncthing@baltakatei.service
54 $ sudo systemctl start syncthing@baltakatei.service
56 The following notifications may appear while running these commands:
58 $ systemctl enable syncthing@baltakatei.service
59 Created symlink /etc/systemd/system/multi-user.target.wants/syncthing@baltakatei.service → /lib/systemd/system/syncthing@.service.
61 The status of the new system service can be verified via:
63 $ systemctl status syncthing@baltakatei.service
65 The resulting status data will resemble:
67 $ systemctl status syncthing@baltakatei.service
68 ● syncthing@baltakatei.service - Syncthing - Open Source Continuous File Synchronization for baltakatei
69 Loaded: loaded (/lib/systemd/system/syncthing@.service; enabled; vendor preset: enabled)
70 Active: active (running) since Mon 2020-04-27 09:01:00 PDT; 3min 34s ago
71 Docs: man:syncthing(1)
72 Main PID: 2799 (syncthing)
73 Tasks: 23 (limit: 1132)
75 CGroup: /system.slice/system-syncthing.slice/syncthing@baltakatei.service
76 └─2799 /usr/bin/syncthing -no-browser -no-restart -logflags=0
78 #### 2.2.b. Enable automatic startup via `systemd` upon login (user service).
80 For a user service, identify which user under which to run
81 `syncthing`. In this example, `baltakatei` will be the user. This
82 means an appropriate directory for a `syncthing` shared folder would
83 be `/home/baltakatei/Sync/`.
85 The commands to create a `systemd` user service under user
88 $ systemctl --user enable syncthing.service
89 $ systemctl --user start syncthing.service
91 The status of the new user service can be verified via:
93 $ systemctl --user status syncthing.service
96 - <a name="syncthing_20200331_autostart">1.</a> ["Starting Syncthing Automatically"][1]. Date: 2020-03-31. [syncthing.net](https://syncthing.net). Date Accessed: 2020-04-27. [Archive link](https://web.archive.org/web/20200414114635/https://docs.syncthing.net/users/autostart.html). Archive date: 2017-04-14.
98 [1]: https://docs.syncthing.net/users/autostart.html
99 [bktei_2020_homepage]: http://baltakatei.com
100 [cc_20131125_bysa]: http://creativecommons.org/licenses/by-sa/4.0/
104 <p xmlns:dct="http://purl.org/dc/terms/" xmlns:cc="http://creativecommons.org/ns#">This work by <a rel="cc:attributionURL" href="http://baltakatei.com"><span rel="cc:attributionName">Steven Baltakatei Sandoval</span></a> is licensed under <a href="https://creativecommons.org/licenses/by-sa/4.0/?ref=ccchooser" target="_blank" rel="license noopener noreferrer" style="display: inline-block;">CC BY-SA 4.0</a><a href="https://creativecommons.org/licenses/by-sa/4.0/?ref=ccchooser"><img style="height:22px!important;margin-left: 3px;vertical-align:text-bottom;opacity:0.7;" src="https://search.creativecommons.org/static/img/cc_icon.svg" /><img style="height:22px!important;margin-left: 3px;vertical-align:text-bottom;opacity:0.7;" src="https://search.creativecommons.org/static/img/cc-by_icon.svg" /><img style="height:22px!important;margin-left: 3px;vertical-align:text-bottom;opacity:0.7;" src="https://search.creativecommons.org/static/img/cc-sa_icon.svg" /></a></p>