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.TH "SYNCTHING-CONFIG" "5" "December 11, 2016" "v0.14" "Syncthing"
.SH NAME
syncthing-config \- Syncthing Configuration
.
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.SH SYNOPSIS
.INDENT 0.0
.INDENT 3.5
.sp
.nf
.ft C
$HOME/.config/syncthing
$HOME/Library/Application Support/Syncthing
%AppData%/Syncthing
%localappdata%/Syncthing
.ft P
.fi
.UNINDENT
.UNINDENT
.SH DESCRIPTION
.sp
Syncthing uses a single directory to store configuration, crypto keys
and index caches. The location defaults to \fB$HOME/.config/syncthing\fP
(Unix\-like), \fB$HOME/Library/Application Support/Syncthing\fP (Mac),
\fB%AppData%/Syncthing\fP (Windows XP) or \fB%LocalAppData%/Syncthing\fP
(Windows 7+). It can be changed at runtime using the \fB\-home\fP flag. In this
directory the following files are located:
.INDENT 0.0
.TP
.B \fBconfig.xml\fP
The configuration file, in XML format.
.TP
.B \fBcert.pem\fP, \fBkey.pem\fP
The device\(aqs RSA public and private key. These form the basis for the
device ID. The key must be kept private.
.TP
.B \fBhttps\-cert.pem\fP, \fBhttps\-key.pem\fP
The certificate and key for HTTPS GUI connections. These may be replaced
with a custom certificate for HTTPS as desired.
.TP
.B \fBindex\-\fP\fI*\fP\fB\&.db\fP
A directory holding the database with metadata and hashes of the files
currently on disk and available from peers.
.TP
.B \fBcsrftokens.txt\fP
A list of recently issued CSRF tokens (for protection against browser cross
site request forgery).
.UNINDENT
.SH CONFIG FILE FORMAT
.sp
The following shows an example of the default configuration file (IDs will differ):
.INDENT 0.0
.INDENT 3.5
.sp
.nf
.ft C
<configuration version="14">
    <folder id="zj2AA\-q55a7" label="Default Folder (zj2AA\-q55a7)" path="/Users/jb/Sync/" type="readwrite" rescanIntervalS="60" ignorePerms="false" autoNormalize="true">
        <device id="3LT2GA5\-CQI4XJM\-WTZ264P\-MLOGMHL\-MCRLDNT\-MZV4RD3\-KA745CL\-OGAERQZ"></device>
        <minDiskFreePct>1</minDiskFreePct>
        <versioning></versioning>
        <copiers>0</copiers>
        <pullers>0</pullers>
        <hashers>0</hashers>
        <order>random</order>
        <ignoreDelete>false</ignoreDelete>
        <scanProgressIntervalS>0</scanProgressIntervalS>
        <pullerSleepS>0</pullerSleepS>
        <pullerPauseS>0</pullerPauseS>
        <maxConflicts>\-1</maxConflicts>
        <disableSparseFiles>false</disableSparseFiles>
        <disableTempIndexes>false</disableTempIndexes>
        <fsync>false</fsync>
    </folder>
    <device id="3LT2GA5\-CQI4XJM\-WTZ264P\-MLOGMHL\-MCRLDNT\-MZV4RD3\-KA745CL\-OGAERQZ" name="syno" compression="metadata" introducer="false">
        <address>dynamic</address>
    </device>
    <gui enabled="true" tls="false">
        <address>127.0.0.1:8384</address>
        <apikey>k1dnz1Dd0rzTBjjFFh7CXPnrF12C49B1</apikey>
        <theme>default</theme>
    </gui>
    <options>
        <listenAddress>default</listenAddress>
        <globalAnnounceServer>default</globalAnnounceServer>
        <globalAnnounceEnabled>true</globalAnnounceEnabled>
        <localAnnounceEnabled>true</localAnnounceEnabled>
        <localAnnouncePort>21027</localAnnouncePort>
        <localAnnounceMCAddr>[ff12::8384]:21027</localAnnounceMCAddr>
        <maxSendKbps>0</maxSendKbps>
        <maxRecvKbps>0</maxRecvKbps>
        <reconnectionIntervalS>60</reconnectionIntervalS>
        <relaysEnabled>true</relaysEnabled>
        <relayReconnectIntervalM>10</relayReconnectIntervalM>
        <startBrowser>true</startBrowser>
        <natEnabled>true</natEnabled>
        <natLeaseMinutes>60</natLeaseMinutes>
        <natRenewalMinutes>30</natRenewalMinutes>
        <natTimeoutSeconds>10</natTimeoutSeconds>
        <urAccepted>0</urAccepted>
        <urUniqueID></urUniqueID>
        <urURL>https://data.syncthing.net/newdata</urURL>
        <urPostInsecurely>false</urPostInsecurely>
        <urInitialDelayS>1800</urInitialDelayS>
        <restartOnWakeup>true</restartOnWakeup>
        <autoUpgradeIntervalH>12</autoUpgradeIntervalH>
        <keepTemporariesH>24</keepTemporariesH>
        <cacheIgnoredFiles>false</cacheIgnoredFiles>
        <progressUpdateIntervalS>5</progressUpdateIntervalS>
        <symlinksEnabled>true</symlinksEnabled>
        <limitBandwidthInLan>false</limitBandwidthInLan>
        <minHomeDiskFreePct>1</minHomeDiskFreePct>
        <releasesURL>https://api.github.com/repos/syncthing/syncthing/releases?per_page=30</releasesURL>
        <overwriteRemoteDeviceNamesOnConnect>false</overwriteRemoteDeviceNamesOnConnect>
        <tempIndexMinBlocks>10</tempIndexMinBlocks>
    </options>
</configuration>
.ft P
.fi
.UNINDENT
.UNINDENT
.SH CONFIGURATION ELEMENT
.sp
This is the root element.
.INDENT 0.0
.TP
.B version
The config version. Increments whenever a change is made that requires
migration from previous formats.
.UNINDENT
.SH FOLDER ELEMENT
.INDENT 0.0
.INDENT 3.5
.sp
.nf
.ft C
<folder id="zj2AA\-q55a7" label="Default Folder (zj2AA\-q55a7)" path="/Users/jb/Sync/" type="readwrite" rescanIntervalS="60" ignorePerms="false" autoNormalize="true" ro="false">
    <device id="3LT2GA5\-CQI4XJM\-WTZ264P\-MLOGMHL\-MCRLDNT\-MZV4RD3\-KA745CL\-OGAERQZ" introducedBy="2CYF2WQ\-AKZO2QZ\-JAKWLYD\-AGHMQUM\-BGXUOIS\-GYILW34\-HJG3DUK\-LRRYQAR"></device>
    <minDiskFreePct>1</minDiskFreePct>
    <versioning></versioning>
    <copiers>0</copiers>
    <pullers>0</pullers>
    <hashers>0</hashers>
    <order>random</order>
    <ignoreDelete>false</ignoreDelete>
    <scanProgressIntervalS>0</scanProgressIntervalS>
    <pullerSleepS>0</pullerSleepS>
    <pullerPauseS>0</pullerPauseS>
    <maxConflicts>\-1</maxConflicts>
    <disableSparseFiles>false</disableSparseFiles>
    <disableTempIndexes>false</disableTempIndexes>
    <fsync>false</fsync>
</folder>
.ft P
.fi
.UNINDENT
.UNINDENT
.sp
One or more \fBfolder\fP elements must be present in the file. Each element
describes one folder. The following attributes may be set on the \fBfolder\fP
element:
.INDENT 0.0
.TP
.B id
The folder ID, must be unique. (mandatory)
.TP
.B label
The label of a folder is a human readable and descriptive local name. May
be different on each device, empty, and/or identical to other folder
labels. (optional)
.TP
.B path
The path to the directory where the folder is stored on this
device; not sent to other devices. (mandatory)
.TP
.B type
Controls how the folder is handled by Syncthing. Possible values are:
.INDENT 7.0
.TP
.B readwrite
The folder is in default mode. Sending local and accepting remote changes.
.TP
.B readonly
The folder is in "master" mode \-\- it will not be modified by
Syncthing on this device.
.UNINDENT
.TP
.B rescanIntervalS
The rescan interval, in seconds. Can be set to zero to disable when external
plugins are used to trigger rescans.
.TP
.B ignorePerms
True if the folder should ignore permissions.
.TP
.B autoNormalize
Automatically correct UTF\-8 normalization errors found in file names.
.UNINDENT
.sp
The following child elements may exist:
.INDENT 0.0
.TP
.B device
These must have the \fBid\fP attribute and can have an \fBintroducedBy\fP attribute,
identifying the device that introduced us to share this folder with the given device.
If the original introducer unshares this folder with this device, our device will follow
and unshare the folder (subject to skipIntroductionRemovals being false on the introducer device).
All mentioned devices are those that will be sharing the folder in question.
Each mentioned device must have a separate \fBdevice\fP element later in the file.
It is customary that the local device ID is included in all folders.
Syncthing will currently add this automatically if it is not present in
the configuration file.
.TP
.B minDiskFreePct
The percentage of space that should be available on the disk this folder
resides. The folder will be stopped when the percentage of free space goes
below the threshold. Set to zero to disable.
.TP
.B versioning
Specifies a versioning configuration.
.UNINDENT
.sp
\fBSEE ALSO:\fP
.INDENT 0.0
.INDENT 3.5
versioning
.UNINDENT
.UNINDENT
.INDENT 0.0
.TP
.B copiers, pullers, hashers
The number of copier, puller and hasher routines to use, or zero for the
system determined optimum. These are low level performance options for
advanced users only; do not change unless requested to or you\(aqve actually
read and understood the code yourself. :)
.TP
.B order
The order in which needed files should be pulled from the cluster.
The possibles values are:
.INDENT 7.0
.TP
.B random
Pull files in random order. This optimizes for balancing resources among
the devices in a cluster.
.TP
.B alphabetic
Pull files ordered by file name alphabetically.
.TP
.B smallestFirst, largestFirst
Pull files ordered by file size; smallest and largest first respectively.
.TP
.B oldestFirst, newestFirst
Pull files ordered by modification time; oldest and newest first
respectively.
.UNINDENT
.TP
.B ignoreDelete
When set to true, this device will pretend not to see instructions to
delete files from other devices.
.TP
.B scanProgressIntervalS
The interval with which scan progress information is sent to the GUI. Zero
means the default value (two seconds).
.TP
.B pullerSleepS, pullerPauseS
Tweaks for rate limiting the puller. Don\(aqt change these unless you know
what you\(aqre doing.
.TP
.B maxConflicts
The maximum number of conflict copies to keep around for any given file.
The default, \-1, means an unlimited number. Setting this to zero disables
conflict copies altogether.
.TP
.B disableSparseFiles
By default, blocks containing all zeroes are not written, causing files
to be sparse on filesystems that support the concept. When set to true,
sparse files will not be created.
.TP
.B disableTempIndexes
By default, devices exchange information about blocks available in
transfers that are still in progress. When set to true, such information
is not exchanged for this folder.
.TP
.B fsync
Transfer updated (from other devices) files to permanent storage before
committing the changes to the internal database.
.UNINDENT
.SH DEVICE ELEMENT
.INDENT 0.0
.INDENT 3.5
.sp
.nf
.ft C
<device id="5SYI2FS\-LW6YAXI\-JJDYETS\-NDBBPIO\-256MWBO\-XDPXWVG\-24QPUM4\-PDW4UQU" name="syno" compression="metadata" introducer="false" introducedBy="2CYF2WQ\-AKZO2QZ\-JAKWLYD\-AGHMQUM\-BGXUOIS\-GYILW34\-HJG3DUK\-LRRYQAR">
    <address>dynamic</address>
</device>
<device id="2CYF2WQ\-AKZO2QZ\-JAKWLYD\-AGHMQUM\-BGXUOIS\-GYILW34\-HJG3DUK\-LRRYQAR" name="syno local" compression="metadata" introducer="false">
    <address>tcp://192.0.2.1:22001</address>
</device>
.ft P
.fi
.UNINDENT
.UNINDENT
.sp
One or more \fBdevice\fP elements must be present in the file. Each element
describes a device participating in the cluster. It is customary to include a
\fBdevice\fP element for the local device; Syncthing will currently add one if
it is not present. The following attributes may be set on the \fBdevice\fP
element:
.INDENT 0.0
.TP
.B id
The device ID. This must be written in canonical form, that is without any
spaces or dashes. (mandatory)
.TP
.B name
A friendly name for the device. (optional)
.TP
.B compression
Whether to use protocol compression when sending messages to this device.
The possible values are:
.INDENT 7.0
.TP
.B metadata
Compress metadata packets, such as index information. Metadata is
usually very compression friendly so this is a good default.
.TP
.B always
Compress all packets, including file data. This is recommended if the
folders contents are mainly compressible data such as documents or
text files.
.TP
.B never
Disable all compression.
.UNINDENT
.TP
.B introducer
Set to true if this device should be trusted as an introducer, i.e. we
should copy their list of devices per folder when connecting.
.TP
.B skipIntroductionRemovals
Set to true if you wish to follow only introductions and not de\-introductions.
For example, if this is set, we would not remove a device that we were introduced
to even if the original introducer is no longer listing the remote device as known.
.TP
.B introducedBy
Defines which device has introduced us to this device. Used only for following de\-introductions.
.UNINDENT
.sp
In addition, one or more \fBaddress\fP child elements must be present. Each
contains an address or host name to use when attempting to connect to this device and will
be tried in order. Entries other than \fBdynamic\fP must be prefixed with \fBtcp://\fP (dual\-stack), \fBtcp4://\fP (IPv4 only) or \fBtcp6://\fP (IPv6 only). Note that IP addresses need not use tcp4/tcp6; these are optional. Accepted formats are:
.INDENT 0.0
.TP
.B IPv4 address (\fBtcp://192.0.2.42\fP)
The default port (22000) is used.
.TP
.B IPv4 address and port (\fBtcp://192.0.2.42:12345\fP)
The address and port is used as given.
.TP
.B IPv6 address (\fBtcp://[2001:db8::23:42]\fP)
The default port (22000) is used. The address must be enclosed in
square brackets.
.TP
.B IPv6 address and port (\fBtcp://[2001:db8::23:42]:12345\fP)
The address and port is used as given. The address must be enclosed in
square brackets.
.TP
.B Host name (\fBtcp6://fileserver\fP)
The host name will be used on the default port (22000) and connections will be attempted only via IPv6.
.TP
.B Host name and port (\fBtcp://fileserver:12345\fP)
The host name will be used on the given port and connections will be attempted via both IPv4 and IPv6, depending on name resolution.
.TP
.B \fBdynamic\fP
The word \fBdynamic\fP (without \fBtcp://\fP prefix) means to use local and global discovery to find the
device.
.UNINDENT
.SH IGNOREDDEVICE ELEMENT
.INDENT 0.0
.INDENT 3.5
.sp
.nf
.ft C
<ignoredDevice>5SYI2FS\-LW6YAXI\-JJDYETS\-NDBBPIO\-256MWBO\-XDPXWVG\-24QPUM4\-PDW4UQU</ignoredDevice>
.ft P
.fi
.UNINDENT
.UNINDENT
.sp
This optional element lists device IDs that have been specifically ignored. One element must be present for each device ID. Connection attempts from these devices are logged to the console but never displayed in the web GUI.
.SH GUI ELEMENT
.INDENT 0.0
.INDENT 3.5
.sp
.nf
.ft C
<gui enabled="true" tls="false">
    <address>127.0.0.1:8384</address>
    <apikey>l7jSbCqPD95JYZ0g8vi4ZLAMg3ulnN1b</apikey>
    <theme>default</theme>
</gui>
.ft P
.fi
.UNINDENT
.UNINDENT
.sp
There must be exactly one \fBgui\fP element. The GUI configuration is also used
by the rest\-api and the event\-api\&. The following attributes may
be set on the \fBgui\fP element:
.INDENT 0.0
.TP
.B enabled
If not \fBtrue\fP, the GUI and API will not be started.
.TP
.B tls
If set to \fBtrue\fP, TLS (HTTPS) will be enforced. Non\-HTTPS requests will
be redirected to HTTPS. When this is set to \fBfalse\fP, TLS connections are
still possible but it is not mandatory.
.TP
.B theme
The name of the theme to use.
.UNINDENT
.sp
The following child elements may be present:
.INDENT 0.0
.TP
.B address
Set the listen address. One address element must be present. Allowed address formats are:
.INDENT 7.0
.TP
.B IPv4 address and port (\fB127.0.0.1:8384\fP)
The address and port is used as given.
.TP
.B IPv6 address and port (\fB[::1]:8384\fP)
The address and port is used as given. The address must be enclosed in
square brackets.
.TP
.B Wildcard and port (\fB0.0.0.0:12345\fP, \fB[::]:12345\fP, \fB:12345\fP)
These are equivalent and will result in Syncthing listening on all
interfaces via both IPv4 and IPv6.
.UNINDENT
.TP
.B user
Set to require authentication.
.TP
.B password
Contains the bcrypt hash of the real password.
.TP
.B apikey
If set, this is the API key that enables usage of the REST interface.
.UNINDENT
.SH OPTIONS ELEMENT
.INDENT 0.0
.INDENT 3.5
.sp
.nf
.ft C
<options>
    <listenAddress>default</listenAddress>
    <globalAnnounceServer>default</globalAnnounceServer>
    <globalAnnounceEnabled>true</globalAnnounceEnabled>
    <localAnnounceEnabled>true</localAnnounceEnabled>
    <localAnnouncePort>21027</localAnnouncePort>
    <localAnnounceMCAddr>[ff12::8384]:21027</localAnnounceMCAddr>
    <maxSendKbps>0</maxSendKbps>
    <maxRecvKbps>0</maxRecvKbps>
    <reconnectionIntervalS>60</reconnectionIntervalS>
    <relaysEnabled>true</relaysEnabled>
    <relayReconnectIntervalM>10</relayReconnectIntervalM>
    <startBrowser>true</startBrowser>
    <natEnabled>true</natEnabled>
    <natLeaseMinutes>60</natLeaseMinutes>
    <natRenewalMinutes>30</natRenewalMinutes>
    <natTimeoutSeconds>10</natTimeoutSeconds>
    <urAccepted>0</urAccepted>
    <urUniqueID></urUniqueID>
    <urURL>https://data.syncthing.net/newdata</urURL>
    <urPostInsecurely>false</urPostInsecurely>
    <urInitialDelayS>1800</urInitialDelayS>
    <restartOnWakeup>true</restartOnWakeup>
    <autoUpgradeIntervalH>12</autoUpgradeIntervalH>
    <keepTemporariesH>24</keepTemporariesH>
    <cacheIgnoredFiles>false</cacheIgnoredFiles>
    <progressUpdateIntervalS>5</progressUpdateIntervalS>
    <symlinksEnabled>true</symlinksEnabled>
    <limitBandwidthInLan>false</limitBandwidthInLan>
    <minHomeDiskFreePct>1</minHomeDiskFreePct>
    <releasesURL>https://api.github.com/repos/syncthing/syncthing/releases?per_page=30</releasesURL>
    <overwriteRemoteDeviceNamesOnConnect>false</overwriteRemoteDeviceNamesOnConnect>
    <tempIndexMinBlocks>10</tempIndexMinBlocks>
</options>
.ft P
.fi
.UNINDENT
.UNINDENT
.sp
The \fBoptions\fP element contains all other global configuration options.
.INDENT 0.0
.TP
.B listenAddress
The listen address for incoming sync connections. See
\fI\%Listen Addresses\fP for allowed syntax.
.TP
.B globalAnnounceServer
A URI to a global announce (discovery) server, or the word \fBdefault\fP to
include the default servers. Any number of globalAnnounceServer elements
may be present. The syntax for non\-default entries is that of a HTTP or
HTTPS URL. A number of options may be added as query options to the URL:
\fBinsecure\fP to prevent certificate validation (required for HTTP URLs)
and \fBid=<device ID>\fP to perform certificate pinning. The device ID to
use is printed by the discovery server on startup.
.TP
.B globalAnnounceEnabled
Whether to announce this device to the global announce (discovery) server,
and also use it to look up other devices.
.TP
.B localAnnounceEnabled
Whether to send announcements to the local LAN, also use such
announcements to find other devices.
.TP
.B localAnnouncePort
The port on which to listen and send IPv4 broadcast announcements to.
.TP
.B localAnnounceMCAddr
The group address and port to join and send IPv6 multicast announcements on.
.TP
.B relayServer
Lists one or more relay servers, on the format \fBrelay://hostname:port\fP\&.
Alternatively, a relay list can be loaded over https by using an URL like
\fBdynamic+https://somehost/path\fP\&. The default loads the list of relays
from the relay pool server, \fBrelays.syncthing.net\fP\&.
.TP
.B maxSendKbps
Outgoing data rate limit, in kibibytes per second.
.TP
.B maxRecvKbps
Incoming data rate limits, in kibibytes per second.
.TP
.B reconnectionIntervalS
The number of seconds to wait between each attempt to connect to currently
unconnected devices.
.TP
.B relaysEnabled
When true, relays will be connected to and potentially used for device to device connections.
.TP
.B relayReconnectIntervalM
Sets the interval, in minutes, between relay reconnect attempts.
.TP
.B startBrowser
Whether to attempt to start a browser to show the GUI when Syncthing starts.
.TP
.B natEnabled
Whether to attempt to perform a UPnP and NAT\-PMP port mapping for
incoming sync connections.
.TP
.B natLeaseMinutes
Request a lease for this many minutes; zero to request a permanent lease.
.TP
.B natRenewalMinutes
Attempt to renew the lease after this many minutes.
.TP
.B natTimeoutSeconds
When scanning for UPnP devices, wait this long for responses.
.TP
.B urAccepted
Whether the user has accepted to submit anonymous usage data. The default,
\fB0\fP, mean the user has not made a choice, and Syncthing will ask at some
point in the future. \fB\-1\fP means no, a number above zero means that that
version of usage reporting has been accepted.
.TP
.B urUniqueID
The unique ID sent together with the usage report. Generated when usage
reporting is enabled.
.TP
.B urURL
The URL to post usage report data to, when enabled.
.TP
.B urPostInsecurely
When true, the UR URL can be http instead of https, or have a self\-signed
certificate. The default is \fBfalse\fP\&.
.TP
.B urInitialDelayS
The time to wait from startup to the first usage report being sent. Allows
the system to stabilize before reporting statistics.
.TP
.B restartOnWakeup
Whether to perform a restart of Syncthing when it is detected that we are
waking from sleep mode (i.e. a folded up laptop).
.TP
.B autoUpgradeIntervalH
Check for a newer version after this many hours. Set to zero to disable
automatic upgrades.
.TP
.B keepTemporariesH
Keep temporary failed transfers for this many hours. While the temporaries
are kept, the data they contain need not be transferred again.
.TP
.B cacheIgnoredFiles
Whether to cache the results of ignore pattern evaluation. Performance
at the price of memory. Defaults to \fBfalse\fP as the cost for evaluating
ignores is usually not significant.
.TP
.B progressUpdateIntervalS
How often in seconds the progress of ongoing downloads is made available to
the GUI.
.TP
.B symlinksEnabled
Whether to sync symlinks, if supported by the system.
.TP
.B limitBandwidthInLan
Whether to apply bandwidth limits to devices in the same broadcast domain
as the local device.
.TP
.B databaseBlockCacheMiB
Override the automatically calculated database block cache size. Don\(aqt,
unless you\(aqre very short on memory, in which case you want to set this to
\fB8\fP\&.
.TP
.B pingTimeoutS
Ping\-timeout in seconds. Don\(aqt change it unless you are having issues due to
slow response time (slow connection/cpu) and large index exchanges.
.TP
.B pingIdleTimeS
Ping interval in seconds. Don\(aqt change it unless you feel it\(aqs necessary.
.TP
.B minHomeDiskFreePct
The percentage of space that should be available on the partition holding
the configuration and index.
.TP
.B releasesURL
The URL from which release information is loaded, for automatic upgrades.
.TP
.B overwriteRemoteDeviceNamesOnConnect
If set, device names will always be overwritten with the name given by
remote on each connection. By default, the name that the remote device
announces will only be adopted when a name has not already been set.
.TP
.B tempIndexMinBlocks
When exchanging index information for incomplete transfers, only take
into account files that have at least this many blocks.
.UNINDENT
.SS Listen Addresses
.sp
The following address types are accepted in sync protocol listen addresses:
.INDENT 0.0
.TP
.B TCP wildcard and port (\fBtcp://0.0.0.0:22000\fP, \fBtcp://:22000\fP)
These are equivalent and will result in Syncthing listening on all
interfaces, IPv4 and IPv6, on the specified port.
.TP
.B TCP IPv4 wildcard and port (\fBtcp4://0.0.0.0:22000\fP, \fBtcp4://:22000\fP)
These are equivalent and will result in Syncthing listening on all
interfaces via IPv4 only.
.TP
.B TCP IPv4 address and port (\fBtcp4://192.0.2.1:22000\fP)
These are equivalent and will result in Syncthing listening on the
specified address and port only.
.TP
.B TCP IPv6 wildcard and port (\fBtcp6://[::]:22000\fP, \fBtcp6://:22000\fP)
These are equivalent and will result in Syncthing listening on all
interfaces via IPv6 only.
.TP
.B TCP IPv6 address and port (\fBtcp6://[2001:db8::42]:22000\fP)
These are equivalent and will result in Syncthing listening on the
specified address and port only.
.TP
.B Static relay address (\fBrelay://192.0.2.42:22067?id=abcd123...\fP)
Syncthing will connect to and listen for incoming connections via the
specified relay address.
.INDENT 7.0
.INDENT 3.5
.SS Todo
.sp
Document available URL parameters.
.UNINDENT
.UNINDENT
.TP
.B Dynamic relay pool (\fBdynamic+https://192.0.2.42/relays\fP)
Syncthing will fetch the specified HTTPS URL, parse it for a JSON payload
describing relays, select a relay from the available ones and listen via
that as if specified as a static relay above.
.INDENT 7.0
.INDENT 3.5
.SS Todo
.sp
Document available URL parameters.
.UNINDENT
.UNINDENT
.UNINDENT
.SH SYNCING CONFIGURATION FILES
.sp
Syncing configuration files between devices (such that multiple devices are
using the same configuration files) can cause issues. This is easy to do
accidentally if you sync your home folder between devices. A common symptom
of syncing configuration files is two devices ending up with the same Device ID.
.sp
If you want to use Syncthing to backup your configuration files, it is recommended
that the files you are backing up are in a folder\-master to prevent other
devices from overwriting the per device configuration. The folder on the remote
device(s) should not be used as configuration for the remote devices.
.sp
If you\(aqd like to sync your home folder in non\-master mode, you may add the
folder that stores the configuration files to the ignore list\&.
If you\(aqd also like to backup your configuration files, add another folder in
master mode for just the configuration folder.
.SH AUTHOR
The Syncthing Authors
.SH COPYRIGHT
2015, The Syncthing Authors
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