621 lines
18 KiB
Groff
621 lines
18 KiB
Groff
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..
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.TH "SYNCTHING" "1" "May 01, 2022" "v1.19.2" "Syncthing"
|
||
.SH NAME
|
||
syncthing \- Syncthing
|
||
.SH SYNOPSIS
|
||
.INDENT 0.0
|
||
.INDENT 3.5
|
||
.sp
|
||
.nf
|
||
.ft C
|
||
syncthing [serve]
|
||
[\-\-audit] [\-\-auditfile=<file|\-|\-\->] [\-\-browser\-only] [\-\-device\-id]
|
||
[\-\-generate=<dir>] [\-\-gui\-address=<address>] [\-\-gui\-apikey=<key>]
|
||
[\-\-home=<dir> | \-\-config=<dir> \-\-data=<dir>]
|
||
[\-\-logfile=<filename>] [\-\-logflags=<flags>]
|
||
[\-\-log\-max\-old\-files=<num>] [\-\-log\-max\-size=<num>]
|
||
[\-\-no\-browser] [\-\-no\-console] [\-\-no\-restart] [\-\-paths] [\-\-paused]
|
||
[\-\-no\-default\-folder] [\-\-skip\-port\-probing]
|
||
[\-\-reset\-database] [\-\-reset\-deltas] [\-\-unpaused] [\-\-allow\-newer\-config]
|
||
[\-\-upgrade] [\-\-no\-upgrade] [\-\-upgrade\-check] [\-\-upgrade\-to=<url>]
|
||
[\-\-verbose] [\-\-version] [\-\-help] [\-\-debug\-*]
|
||
|
||
syncthing generate
|
||
[\-\-home=<dir> | \-\-config=<dir>]
|
||
[\-\-gui\-user=<username>] [\-\-gui\-password=<password|\->]
|
||
[\-\-no\-default\-folder] [\-\-skip\-port\-probing] [\-\-no\-console]
|
||
[\-\-help]
|
||
|
||
syncthing decrypt (\-\-to=<dir> | \-\-verify\-only)
|
||
[\-\-password=<pw>] [\-\-folder\-id=<id>] [\-\-token\-path=<file>]
|
||
[\-\-continue] [\-\-verbose] [\-\-version] [\-\-help]
|
||
<path>
|
||
|
||
syncthing cli
|
||
[\-\-home=<dir> | \-\-config=<dir> \-\-data=<dir>]
|
||
[\-\-gui\-address=<address>] [\-\-gui\-apikey=<key>]
|
||
[\-\-help]
|
||
<command> [command options...] [arguments...]
|
||
.ft P
|
||
.fi
|
||
.UNINDENT
|
||
.UNINDENT
|
||
.SH DESCRIPTION
|
||
.sp
|
||
Syncthing lets you synchronize your files bidirectionally across multiple
|
||
devices. This means the creation, modification or deletion of files on one
|
||
machine will automatically be replicated to your other devices. We believe your
|
||
data is your data alone and you deserve to choose where it is stored. Therefore
|
||
Syncthing does not upload your data to the cloud but exchanges your data across
|
||
your machines as soon as they are online at the same time.
|
||
.sp
|
||
The \fBsyncthing\fP core application is a command\-line program which usually runs
|
||
in the background and handles the synchronization. It provides a built\-in, HTML
|
||
and JavaScript based user interface to be controlled from a web browser. This
|
||
frontend communicates with the core application through some HTTP APIs, which
|
||
other apps like graphical system integration helpers can use as well, for
|
||
greatest flexibility. A link to reach the GUI and API is printed among the first
|
||
few log messages.
|
||
.SH OPTIONS
|
||
.INDENT 0.0
|
||
.TP
|
||
.B \-\-allow\-newer\-config
|
||
Try loading a config file written by a newer program version, instead of
|
||
failing immediately.
|
||
.UNINDENT
|
||
.INDENT 0.0
|
||
.TP
|
||
.B \-\-audit
|
||
Write events to timestamped file \fBaudit\-YYYYMMDD\-HHMMSS.log\fP\&.
|
||
.UNINDENT
|
||
.INDENT 0.0
|
||
.TP
|
||
.B \-\-auditfile=<file|\-|\-\->
|
||
Use specified file or stream (\fB"\-"\fP for stdout, \fB"\-\-"\fP for stderr) for
|
||
audit events, rather than the timestamped default file name.
|
||
.UNINDENT
|
||
.INDENT 0.0
|
||
.TP
|
||
.B \-\-browser\-only
|
||
Open the web UI in a browser for an already running Syncthing instance.
|
||
.UNINDENT
|
||
.INDENT 0.0
|
||
.TP
|
||
.B \-\-device\-id
|
||
Print device ID to command line.
|
||
.UNINDENT
|
||
.INDENT 0.0
|
||
.TP
|
||
.B \-\-generate=<dir>
|
||
Generate key and config in specified dir, then exit.
|
||
.UNINDENT
|
||
.INDENT 0.0
|
||
.TP
|
||
.B \-\-gui\-address=<address>
|
||
Override GUI listen address. Set this to an address (\fB0.0.0.0:8384\fP)
|
||
or file path (\fB/var/run/st.sock\fP, for UNIX sockets).
|
||
.UNINDENT
|
||
.INDENT 0.0
|
||
.TP
|
||
.B \-\-gui\-apikey=<string>
|
||
Override the API key needed to access the GUI / REST API.
|
||
.UNINDENT
|
||
.INDENT 0.0
|
||
.TP
|
||
.B \-\-gui\-password=<password|\->
|
||
Specify new GUI authentication password, to update the config file. Read
|
||
from the standard input stream if only a single dash (\fB\-\fP) is given. The
|
||
password is hashed before writing to the config file. As a special case,
|
||
giving the existing password hash as password will leave it untouched.
|
||
.UNINDENT
|
||
.INDENT 0.0
|
||
.TP
|
||
.B \-\-gui\-user=<username>
|
||
Specify new GUI authentication user name, to update the config file.
|
||
.UNINDENT
|
||
.INDENT 0.0
|
||
.TP
|
||
.B \-\-help, \-h
|
||
Show help text about command line usage. Context\-sensitive depending on the
|
||
given subcommand.
|
||
.UNINDENT
|
||
.INDENT 0.0
|
||
.TP
|
||
.B \-\-home=<dir>
|
||
Set common configuration and data directory. The default configuration
|
||
directory is \fB$HOME/.config/syncthing\fP (Unix\-like),
|
||
\fB$HOME/Library/Application Support/Syncthing\fP (Mac) and
|
||
\fB%LOCALAPPDATA%\eSyncthing\fP (Windows).
|
||
.UNINDENT
|
||
.INDENT 0.0
|
||
.TP
|
||
.B \-\-config=<dir>
|
||
Set configuration directory. Alternative to \fB\-\-home\fP and must be used
|
||
together with \fB\-\-data\fP\&.
|
||
.UNINDENT
|
||
.INDENT 0.0
|
||
.TP
|
||
.B \-\-data=<dir>
|
||
Set data (e.g. database) directory. Alternative to \fB\-\-home\fP and must be used
|
||
together with \fB\-\-config\fP\&.
|
||
.UNINDENT
|
||
.INDENT 0.0
|
||
.TP
|
||
.B \-\-logfile=<filename>
|
||
Set destination filename for logging (use \fB"\-"\fP for stdout, which is the
|
||
default option).
|
||
.UNINDENT
|
||
.INDENT 0.0
|
||
.TP
|
||
.B \-\-logflags=<flags>
|
||
Select information in log line prefix. The \fB\-\-logflags\fP value is a sum of
|
||
the following:
|
||
.INDENT 7.0
|
||
.IP \(bu 2
|
||
1: Date
|
||
.IP \(bu 2
|
||
2: Time
|
||
.IP \(bu 2
|
||
4: Microsecond time
|
||
.IP \(bu 2
|
||
8: Long filename
|
||
.IP \(bu 2
|
||
16: Short filename
|
||
.UNINDENT
|
||
.sp
|
||
To prefix each log line with date and time, set \fB\-\-logflags=3\fP (1 + 2 from
|
||
above). The value 0 is used to disable all of the above. The default is to
|
||
show time only (2).
|
||
.UNINDENT
|
||
.INDENT 0.0
|
||
.TP
|
||
.B \-\-log\-max\-old\-files=<num>
|
||
Number of old files to keep (zero to keep only current). Applies only when
|
||
log rotation is enabled through \fB\-\-log\-max\-size\fP\&.
|
||
.UNINDENT
|
||
.INDENT 0.0
|
||
.TP
|
||
.B \-\-log\-max\-size=<num>
|
||
Maximum size of any log file (zero to disable log rotation).
|
||
.UNINDENT
|
||
.INDENT 0.0
|
||
.TP
|
||
.B \-\-no\-browser
|
||
Do not start a browser.
|
||
.UNINDENT
|
||
.INDENT 0.0
|
||
.TP
|
||
.B \-\-no\-console
|
||
Hide the console window. (On Windows only)
|
||
.UNINDENT
|
||
.INDENT 0.0
|
||
.TP
|
||
.B \-\-no\-default\-folder
|
||
Don’t create a default folder when generating an initial configuration /
|
||
starting for the first time.
|
||
.UNINDENT
|
||
.INDENT 0.0
|
||
.TP
|
||
.B \-\-no\-restart
|
||
Do not restart Syncthing when it exits. The monitor process will still run
|
||
to handle crashes and writing to logfiles (if configured to).
|
||
.UNINDENT
|
||
.INDENT 0.0
|
||
.TP
|
||
.B \-\-no\-upgrade
|
||
Disable automatic upgrades. Equivalent to the \fBSTNOUPGRADE\fP environment
|
||
variable, see below.
|
||
.UNINDENT
|
||
.INDENT 0.0
|
||
.TP
|
||
.B \-\-paths
|
||
Print the paths used for configuration, keys, database, GUI overrides,
|
||
default sync folder and the log file.
|
||
.UNINDENT
|
||
.INDENT 0.0
|
||
.TP
|
||
.B \-\-paused
|
||
Start with all devices and folders paused.
|
||
.UNINDENT
|
||
.INDENT 0.0
|
||
.TP
|
||
.B \-\-reset\-database
|
||
Reset the database, forcing a full rescan and resync. Create \fI\&.stfolder\fP
|
||
folders in each sync folder if they do not already exist. \fBCaution\fP:
|
||
Ensure that all sync folders which are mountpoints are already mounted.
|
||
Inconsistent versions may result if the mountpoint is later mounted and
|
||
contains older versions.
|
||
.UNINDENT
|
||
.INDENT 0.0
|
||
.TP
|
||
.B \-\-reset\-deltas
|
||
Reset delta index IDs, forcing a full index exchange.
|
||
.UNINDENT
|
||
.INDENT 0.0
|
||
.TP
|
||
.B \-\-skip\-port\-probing
|
||
Don’t try to find unused random ports for the GUI and listen address when
|
||
generating an initial configuration / starting for the first time.
|
||
.UNINDENT
|
||
.INDENT 0.0
|
||
.TP
|
||
.B \-\-unpaused
|
||
Start with all devices and folders unpaused.
|
||
.UNINDENT
|
||
.INDENT 0.0
|
||
.TP
|
||
.B \-\-upgrade
|
||
Perform upgrade.
|
||
.UNINDENT
|
||
.INDENT 0.0
|
||
.TP
|
||
.B \-\-upgrade\-check
|
||
Check for available upgrade.
|
||
.UNINDENT
|
||
.INDENT 0.0
|
||
.TP
|
||
.B \-\-upgrade\-to=<url>
|
||
Force upgrade directly from specified URL.
|
||
.UNINDENT
|
||
.INDENT 0.0
|
||
.TP
|
||
.B \-\-verbose
|
||
Print verbose log output.
|
||
.UNINDENT
|
||
.INDENT 0.0
|
||
.TP
|
||
.B \-\-version
|
||
Show version.
|
||
.UNINDENT
|
||
.INDENT 0.0
|
||
.TP
|
||
.B \-\-to=<dir>
|
||
Destination directory where files should be stored after decryption.
|
||
.UNINDENT
|
||
.INDENT 0.0
|
||
.TP
|
||
.B \-\-verify\-only
|
||
Don’t write decrypted files to disk (but verify plaintext hashes).
|
||
.UNINDENT
|
||
.INDENT 0.0
|
||
.TP
|
||
.B \-\-password=<pw>
|
||
Folder password for decryption / verification. Can be passed through the
|
||
\fBFOLDER_PASSWORD\fP environment variable instead to avoid recording in a
|
||
shell’s history buffer or sniffing from the running processes list.
|
||
.UNINDENT
|
||
.INDENT 0.0
|
||
.TP
|
||
.B \-\-folder\-id=<id>
|
||
Folder ID of the encrypted folder, if it cannot be determined automatically.
|
||
.UNINDENT
|
||
.INDENT 0.0
|
||
.TP
|
||
.B \-\-token\-path=<file>
|
||
Path to the token file within the folder (used to determine folder ID).
|
||
.UNINDENT
|
||
.INDENT 0.0
|
||
.TP
|
||
.B \-\-continue
|
||
Continue processing next file in case of error, instead of aborting.
|
||
.UNINDENT
|
||
.SH EXIT CODES
|
||
.INDENT 0.0
|
||
.TP
|
||
.B 0
|
||
Success / Shutdown
|
||
.TP
|
||
.B 1
|
||
Error
|
||
.TP
|
||
.B 2
|
||
Upgrade not available
|
||
.TP
|
||
.B 3
|
||
Restarting
|
||
.TP
|
||
.B 4
|
||
Upgrading
|
||
.UNINDENT
|
||
.sp
|
||
Exit codes over 125 are usually returned by the shell/binary loader/default
|
||
signal handler. Exit codes over 128+N on Unix usually represent the signal which
|
||
caused the process to exit. For example, \fB128 + 9 (SIGKILL) = 137\fP\&.
|
||
.SH SUBCOMMANDS
|
||
.sp
|
||
The command line syntax actually supports different modes of operation through
|
||
several subcommands, specified as the first argument. If omitted, the default
|
||
\fBserve\fP is assumed.
|
||
.sp
|
||
The initial setup of a device ID and default configuration can be called
|
||
explicitly with the \fBgenerate\fP subcommand. It can also update the configured
|
||
GUI authentication credentials, without going through the REST API. An existing
|
||
device certificate is left untouched. If the configuration file already exists,
|
||
it is validated and updated to the latest configuration schema, including adding
|
||
default values for any new options.
|
||
.sp
|
||
The \fBdecrypt\fP subcommand is used in conjunction with untrusted (encrypted)
|
||
devices, see the relevant section on decryption for
|
||
details. It does not depend on Syncthing to be running, but works on offline
|
||
data.
|
||
.sp
|
||
To work with the REST API for debugging or automating things in Syncthing, the
|
||
\fBcli\fP subcommand provides easy access to individual features. It basically
|
||
saves the hassle of handling HTTP connections and API authentication.
|
||
.sp
|
||
The available subcommands are grouped into several nested hierarchies and some
|
||
parts dynamically generated from the running Syncthing instance. On every
|
||
level, the \fB\-\-help\fP option lists the available properties, actions and
|
||
commands for the user to discover interactively. The top\-level groups are:
|
||
.INDENT 0.0
|
||
.TP
|
||
.B config
|
||
Access the live configuration in a running instance over the REST API to
|
||
retrieve (get) or update (set) values in a fine\-grained way. The hierarchy
|
||
is based on the same structure as used in the JSON / XML representations.
|
||
.TP
|
||
.B show
|
||
Show system properties and status of a running instance. The output is
|
||
passed on directly from the REST API response and therefore requires parsing
|
||
JSON format.
|
||
.TP
|
||
.B operations
|
||
Control the overall program operation such as restarting or handling
|
||
upgrades, as well as triggering some actions on a per\-folder basis. Can
|
||
also configure the default ignore patterns from a plain text ignore file.
|
||
.TP
|
||
.B errors
|
||
Examine pending error conditions that need attention from the user, or
|
||
acknowledge (clear) them.
|
||
.TP
|
||
.B debug
|
||
Various tools to aid in diagnosing problems or collection information for
|
||
bug reports. Some of these commands access the database directly and can
|
||
therefore only work when Syncthing is not running.
|
||
.TP
|
||
.B \fB\-\fP (a single dash)
|
||
Reads subsequent commands from the standard input stream, without needing to
|
||
call the \fBsyncthing cli\fP command over and over. Exits on any invalid
|
||
command or when EOF (end\-of\-file) is received.
|
||
.UNINDENT
|
||
.SH PROXIES
|
||
.sp
|
||
Syncthing can use a SOCKS, HTTP, or HTTPS proxy to talk to the outside
|
||
world. The proxy is used for outgoing connections only \- it is not possible
|
||
to accept incoming connections through the proxy. The proxy is configured
|
||
through the environment variable \fBall_proxy\fP\&. Somewhat unusually, this
|
||
variable must be named in lower case \- it is not “ALL_PROXY”. For
|
||
example:
|
||
.INDENT 0.0
|
||
.INDENT 3.5
|
||
.sp
|
||
.nf
|
||
.ft C
|
||
$ export all_proxy=socks://192.0.2.42:8081
|
||
.ft P
|
||
.fi
|
||
.UNINDENT
|
||
.UNINDENT
|
||
.SH DEVELOPMENT SETTINGS
|
||
.sp
|
||
The following environment variables modify Syncthing’s behavior in ways that
|
||
are mostly useful for developers. Use with care.
|
||
If you start Syncthing from within service managers like systemd or supervisor,
|
||
path expansion may not be supported.
|
||
.INDENT 0.0
|
||
.TP
|
||
.B STTRACE
|
||
Used to increase the debugging verbosity in specific or all facilities,
|
||
generally mapping to a Go package. Enabling any of these also enables
|
||
microsecond timestamps, file names plus line numbers. Enter a
|
||
comma\-separated string of facilities to trace. \fBsyncthing \-\-help\fP always
|
||
outputs an up\-to\-date list. The valid facility strings are:
|
||
.INDENT 7.0
|
||
.TP
|
||
.B Main and operational facilities:
|
||
.INDENT 7.0
|
||
.TP
|
||
.B config
|
||
Configuration loading and saving.
|
||
.TP
|
||
.B db
|
||
The database layer.
|
||
.TP
|
||
.B main
|
||
Main package.
|
||
.TP
|
||
.B model
|
||
The root hub; the largest chunk of the system. File pulling, index
|
||
transmission and requests for chunks.
|
||
.TP
|
||
.B scanner
|
||
File change detection and hashing.
|
||
.TP
|
||
.B versioner
|
||
File versioning.
|
||
.UNINDENT
|
||
.TP
|
||
.B Networking facilities:
|
||
.INDENT 7.0
|
||
.TP
|
||
.B beacon
|
||
Multicast and broadcast UDP discovery packets: Selected interfaces
|
||
and addresses.
|
||
.TP
|
||
.B connections
|
||
Connection handling.
|
||
.TP
|
||
.B dialer
|
||
Dialing connections.
|
||
.TP
|
||
.B discover
|
||
Remote device discovery requests, replies and registration of
|
||
devices.
|
||
.TP
|
||
.B nat
|
||
NAT discovery and port mapping.
|
||
.TP
|
||
.B pmp
|
||
NAT\-PMP discovery and port mapping.
|
||
.TP
|
||
.B protocol
|
||
The BEP protocol.
|
||
.TP
|
||
.B relay
|
||
Relay interaction (\fBstrelaysrv\fP).
|
||
.TP
|
||
.B upnp
|
||
UPnP discovery and port mapping.
|
||
.UNINDENT
|
||
.TP
|
||
.B Other facilities:
|
||
.INDENT 7.0
|
||
.TP
|
||
.B fs
|
||
Filesystem access.
|
||
.TP
|
||
.B events
|
||
Event generation and logging.
|
||
.TP
|
||
.B http
|
||
REST API.
|
||
.TP
|
||
.B sha256
|
||
SHA256 hashing package (this facility currently unused).
|
||
.TP
|
||
.B stats
|
||
Persistent device and folder statistics.
|
||
.TP
|
||
.B sync
|
||
Mutexes. Used for debugging race conditions and deadlocks.
|
||
.TP
|
||
.B upgrade
|
||
Binary upgrades.
|
||
.TP
|
||
.B walkfs
|
||
Filesystem access while walking.
|
||
.TP
|
||
.B all
|
||
All of the above.
|
||
.UNINDENT
|
||
.UNINDENT
|
||
.TP
|
||
.B STBLOCKPROFILE
|
||
Write block profiles to \fBblock\-$pid\-$timestamp.pprof\fP every 20 seconds.
|
||
.TP
|
||
.B STCPUPROFILE
|
||
Write a CPU profile to \fBcpu\-$pid.pprof\fP on exit.
|
||
.TP
|
||
.B STDEADLOCKTIMEOUT
|
||
Used for debugging internal deadlocks; sets debug sensitivity. Use only
|
||
under direction of a developer.
|
||
.TP
|
||
.B STLOCKTHRESHOLD
|
||
Used for debugging internal deadlocks; sets debug sensitivity. Use only
|
||
under direction of a developer.
|
||
.TP
|
||
.B STGUIADDRESS
|
||
Override GUI listen address. Equivalent to passing \fI\%\-\-gui\-address\fP\&.
|
||
.TP
|
||
.B STGUIAPIKEY
|
||
Override the API key needed to access the GUI / REST API. Equivalent to
|
||
passing \fI\%\-\-gui\-apikey\fP\&.
|
||
.TP
|
||
.B STGUIASSETS
|
||
Directory to load GUI assets from. Overrides compiled in assets. Useful for
|
||
developing webgui, commonly use \fBSTGUIASSETS=gui bin/syncthing\fP\&.
|
||
.TP
|
||
.B STHASHING
|
||
Specify which hashing package to use. Defaults to automatic based on
|
||
performance. Specify “minio” (compatibility) or “standard” for the default
|
||
Go implementation.
|
||
.TP
|
||
.B STHEAPPROFILE
|
||
Write heap profiles to \fBheap\-$pid\-$timestamp.pprof\fP each time heap usage
|
||
increases.
|
||
.TP
|
||
.B STNODEFAULTFOLDER
|
||
Don’t create a default folder when starting for the first time. This
|
||
variable will be ignored anytime after the first run. Equivalent to the
|
||
\fI\%\-\-no\-default\-folder\fP flag.
|
||
.TP
|
||
.B STNORESTART
|
||
Equivalent to the \fI\%\-\-no\-restart\fP flag.
|
||
.TP
|
||
.B STNOUPGRADE
|
||
Disable automatic upgrades. Equivalent to the \fI\%\-\-no\-upgrade\fP flag.
|
||
.TP
|
||
.B STPROFILER
|
||
Set to a listen address such as “127.0.0.1:9090” to start the profiler with
|
||
HTTP access, which then can be reached at
|
||
\fI\%http://localhost:9090/debug/pprof\fP\&. See \fBgo tool pprof\fP for more
|
||
information.
|
||
.TP
|
||
.B STPERFSTATS
|
||
Write running performance statistics to \fBperf\-$pid.csv\fP\&. Not supported on
|
||
Windows.
|
||
.TP
|
||
.B STRECHECKDBEVERY
|
||
Time before folder statistics (file, dir, … counts) are recalculated from
|
||
scratch. The given duration must be parseable by Go’s \fBtime.ParseDuration\fP\&. If
|
||
missing or not parseable, the default value of 1 month is used. To force
|
||
recalculation on every startup, set it to \fB1s\fP\&.
|
||
.TP
|
||
.B STGCINDIRECTEVERY
|
||
Sets the time interval in between database garbage collection runs. The
|
||
given duration must be parseable by Go’s \fBtime.ParseDuration\fP\&.
|
||
.TP
|
||
.B GOMAXPROCS
|
||
Set the maximum number of CPU cores to use. Defaults to all available CPU
|
||
cores.
|
||
.TP
|
||
.B GOGC
|
||
Percentage of heap growth at which to trigger GC. Default is 100. Lower
|
||
numbers keep peak memory usage down, at the price of CPU usage
|
||
(i.e. performance).
|
||
.TP
|
||
.B LOGGER_DISCARD
|
||
Hack to completely disable logging, for example when running benchmarks.
|
||
Set to any nonempty value to use it.
|
||
.UNINDENT
|
||
.SH SEE ALSO
|
||
.sp
|
||
\fBsyncthing\-config(5)\fP, \fBsyncthing\-stignore(5)\fP,
|
||
\fBsyncthing\-device\-ids(7)\fP, \fBsyncthing\-security(7)\fP,
|
||
\fBsyncthing\-networking(7)\fP, \fBsyncthing\-versioning(7)\fP,
|
||
\fBsyncthing\-faq(7)\fP
|
||
.SH AUTHOR
|
||
The Syncthing Authors
|
||
.SH COPYRIGHT
|
||
2014-2019, The Syncthing Authors
|
||
.\" Generated by docutils manpage writer.
|
||
.
|