bionic (5) syncthing-config.5.gz

Provided by: syncthing_0.14.43+ds1-6_amd64 bug

NAME

       syncthing-config - Syncthing Configuration

SYNOPSIS

          $HOME/.config/syncthing
          $HOME/Library/Application Support/Syncthing
          %AppData%/Syncthing
          %localappdata%/Syncthing

DESCRIPTION

       Syncthing  uses  a  single  directory  to store configuration, crypto keys and index caches. The location
       defaults  to  $HOME/.config/syncthing  (Unix-like),  $HOME/Library/Application  Support/Syncthing  (Mac),
       %AppData%/Syncthing  (Windows  XP) or %LocalAppData%/Syncthing (Windows 7+). It can be changed at runtime
       using the -home flag. In this directory the following files are located:

       config.xml
              The configuration file, in XML format.

       cert.pem, key.pem
              The device’s RSA public and private key. These form the basis for the device ID. The key  must  be
              kept private.

       https-cert.pem, https-key.pem
              The certificate and key for HTTPS GUI connections. These may be replaced with a custom certificate
              for HTTPS as desired.

       index-*.db
              A directory holding the database with metadata and hashes of  the  files  currently  on  disk  and
              available from peers.

       csrftokens.txt
              A list of recently issued CSRF tokens (for protection against browser cross site request forgery).

CONFIG FILE FORMAT

       The following shows an example of the default configuration file (IDs will differ):

          <configuration version="26">
              <folder id="zj2AA-q55a7" label="Default Folder" path="/Users/jb/Sync/" type="readwrite" rescanIntervalS="60" fsWatcherEnabled="false" fsWatcherDelayS="10" ignorePerms="false" autoNormalize="true">
                  <device id="3LT2GA5-CQI4XJM-WTZ264P-MLOGMHL-MCRLDNT-MZV4RD3-KA745CL-OGAERQZ"></device>
                  <filesystemType>basic</filesystemType>
                  <minDiskFree unit="%">1</minDiskFree>
                  <versioning></versioning>
                  <copiers>0</copiers>
                  <pullers>0</pullers>
                  <hashers>0</hashers>
                  <order>random</order>
                  <ignoreDelete>false</ignoreDelete>
                  <scanProgressIntervalS>0</scanProgressIntervalS>
                  <pullerPauseS>0</pullerPauseS>
                  <maxConflicts>-1</maxConflicts>
                  <disableSparseFiles>false</disableSparseFiles>
                  <disableTempIndexes>false</disableTempIndexes>
                  <paused>false</paused>
                  <weakHashThresholdPct>25</weakHashThresholdPct>
                  <markerName>.stfolder</markerName>
              </folder>
              <device id="3LT2GA5-CQI4XJM-WTZ264P-MLOGMHL-MCRLDNT-MZV4RD3-KA745CL-OGAERQZ" name="syno" compression="metadata" introducer="false" skipIntroductionRemovals="false" introducedBy="">
                  <address>dynamic</address>
                  <paused>false</paused>
              </device>
              <gui enabled="true" tls="false" debugging="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>
                  <urSeen>0</urSeen>
                  <urUniqueID>LFWe2vn3</urUniqueID>
                  <urURL>https://data.syncthing.net/newdata</urURL>
                  <urPostInsecurely>false</urPostInsecurely>
                  <urInitialDelayS>1800</urInitialDelayS>
                  <restartOnWakeup>true</restartOnWakeup>
                  <autoUpgradeIntervalH>12</autoUpgradeIntervalH>
                  <upgradeToPreReleases>false</upgradeToPreReleases>
                  <keepTemporariesH>24</keepTemporariesH>
                  <cacheIgnoredFiles>false</cacheIgnoredFiles>
                  <progressUpdateIntervalS>5</progressUpdateIntervalS>
                  <limitBandwidthInLan>false</limitBandwidthInLan>
                  <minHomeDiskFree unit="%">1</minHomeDiskFree>
                  <releasesURL>https://upgrades.syncthing.net/meta.json</releasesURL>
                  <overwriteRemoteDeviceNamesOnConnect>false</overwriteRemoteDeviceNamesOnConnect>
                  <tempIndexMinBlocks>10</tempIndexMinBlocks>
                  <trafficClass>0</trafficClass>
                  <weakHashSelectionMethod>auto</weakHashSelectionMethod>
                  <stunServer>default</stunServer>
                  <stunKeepaliveSeconds>24</stunKeepaliveSeconds>
                  <kcpNoDelay>false</kcpNoDelay>
                  <kcpUpdateIntervalMs>25</kcpUpdateIntervalMs>
                  <kcpFastResend>false</kcpFastResend>
                  <kcpCongestionControl>true</kcpCongestionControl>
                  <kcpSendWindowSize>128</kcpSendWindowSize>
                  <kcpReceiveWindowSize>128</kcpReceiveWindowSize>
                  <defaultFolderPath>~</defaultFolderPath>
                  <minHomeDiskFreePct>0</minHomeDiskFreePct>
              </options>
          </configuration>

CONFIGURATION ELEMENT

          <configuration version="26">
              <folder></folder>
              <device></device>
              <gui></gui>
              <options></options>
              <ignoredDevice>5SYI2FS-LW6YAXI-JJDYETS-NDBBPIO-256MWBO-XDPXWVG-24QPUM4-PDW4UQU</ignoredDevice>
              <ignoredFolder>bd7q3-zskm5</ignoredDevice>
          </configuration>

       This is the root element. It has one attribute:

       version
              The  config  version.  Increments  whenever a change is made that requires migration from previous
              formats.

       It contains the elements described in the following sections and these two additional child elements:

       ignoredDevice
              Contains the ID of the device that should be ignored. Connection attempts  from  this  device  are
              logged to the console but never displayed in the web GUI.

       ignoredFolder
              Contains  the  ID  of  the  folder that should be ignored. This folder will always be skipped when
              advertised from a remote device, i.e. this will be logged, but there will be no dialog about it in
              the web GUI.

FOLDER ELEMENT

          <folder id="zj2AA-q55a7" label="Default Folder" path="/Users/jb/Sync/" type="readwrite" rescanIntervalS="60" fsWatcherEnabled="false" fsWatcherDelayS="10" ignorePerms="false" autoNormalize="true">
              <device id="3LT2GA5-CQI4XJM-WTZ264P-MLOGMHL-MCRLDNT-MZV4RD3-KA745CL-OGAERQZ"></device>
              <filesystemType>basic</filesystemType>
              <minDiskFree unit="%">1</minDiskFree>
              <versioning></versioning>
              <copiers>0</copiers>
              <pullers>0</pullers>
              <hashers>0</hashers>
              <order>random</order>
              <ignoreDelete>false</ignoreDelete>
              <scanProgressIntervalS>0</scanProgressIntervalS>
              <pullerPauseS>0</pullerPauseS>
              <maxConflicts>-1</maxConflicts>
              <disableSparseFiles>false</disableSparseFiles>
              <disableTempIndexes>false</disableTempIndexes>
              <paused>false</paused>
              <weakHashThresholdPct>25</weakHashThresholdPct>
              <markerName>.stfolder</markerName>
          </folder>

       One or more folder elements must be present in the file. Each element describes one folder. The following
       attributes may be set on the folder element:

       id     The folder ID, must be unique. (mandatory)

       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)

       path   The  path  to  the directory where the folder is stored on this device; not sent to other devices.
              (mandatory)

       type   Controls how the folder is handled by Syncthing. Possible values are:

              readwrite
                     The folder is in default mode. Sending local and accepting remote changes.

              readonly
                     The folder is in “send-only” mode – it will not be modified by Syncthing on this device.

       rescanIntervalS
              The rescan interval, in seconds. Can be set to zero to disable when external plugins are  used  to
              trigger rescans.

       fsWatcherEnabled
              If enabled this detects changes to files in the folder and scans them.

       fsWatcherDelayS
              The duration during which changes detected are accumulated, before a scan is scheduled (only takes
              effect if fsWatcherEnabled is true).

       ignorePerms
              True if the folder should ignore permissions.

       autoNormalize
              Automatically correct UTF-8 normalization errors found in file names.

       The following child elements may exist:

       device These must have the id attribute and can have an introducedBy 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  device
              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.

       minDiskFree
              The minimum required free space that should be available on the  disk  this  folder  resides.  The
              folder  will be stopped when the value drops below the threshold. Accepted units are %, kB, MB, GB
              and TB. Set to zero to disable.

       versioning
              Specifies a versioning configuration.

       SEE ALSO:
          versioning

       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’ve actually read and understood the code yourself. :)

       order  The order in which needed files should be pulled from the cluster.  The possibles values are:

              random Pull files in random order. This optimizes for balancing resources among the devices  in  a
                     cluster.

              alphabetic
                     Pull files ordered by file name alphabetically.

              smallestFirst, largestFirst
                     Pull files ordered by file size; smallest and largest first respectively.

              oldestFirst, newestFirst
                     Pull files ordered by modification time; oldest and newest first respectively.

       ignoreDelete
              When  set  to  true,  this  device will pretend not to see instructions to delete files from other
              devices.

       scanProgressIntervalS
              The interval with which scan progress information is sent to the GUI. Zero means the default value
              (two seconds).

       pullerPauseS
              Tweak  for  rate  limiting the puller when it retries pulling files. Don’t change these unless you
              know what you’re doing.

       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.

       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.

       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.

       paused True if this folder is (temporarily) suspended.

       weakHashThresholdPct
              Use  weak  hash if more than the given percentage of the file has changed. Set to -1 to always use
              weak hash. Default value is 25.

       markerName
              Name of a directory or file in the folder root to be used as marker-faq. Default is “.stfolder”.

       fsync  Deprecated since version v0.14.37.

              Transfer updated (from other devices) files to permanent storage before committing the changes  to
              the internal database.

       pullerSleepS
              Deprecated since version v0.14.41.

              Tweak for rate limiting the puller. Don’t change these unless you know what you’re doing.

DEVICE ELEMENT

          <device id="5SYI2FS-LW6YAXI-JJDYETS-NDBBPIO-256MWBO-XDPXWVG-24QPUM4-PDW4UQU" name="syno" compression="metadata" introducer="false" skipIntroductionRemovals="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>
              <paused>true<paused>
              <allowedNetwork>192.168.0.0/16<allowedNetwork>
          </device>

       One or more device elements must be present in the file. Each element describes a device participating in
       the cluster. It is customary to include a device element for the local device; Syncthing  will  currently
       add one if it is not present. The following attributes may be set on the device element:

       id     The  device  ID.  This  must  be  written in canonical form, that is without any spaces or dashes.
              (mandatory)

       name   A friendly name for the device. (optional)

       compression
              Whether to use protocol compression when sending messages to this  device.   The  possible  values
              are:

              metadata
                     Compress  metadata packets, such as index information. Metadata is usually very compression
                     friendly so this is a good default.

              always Compress all packets, including file data. This is recommended if the folders contents  are
                     mainly compressible data such as documents or text files.

              never  Disable all compression.

       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.

       SEE ALSO:
          introducer

       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.

       introducedBy
              Defines which device has introduced us to this device. Used only for following de-introductions.

       From following child elements at least one address child must exist.

       address
              Contains an address or host name to use when attempting to connect to this device.  Entries  other
              than  dynamic  must  be  prefixed  with  tcp:// (dual-stack), tcp4:// (IPv4 only) or tcp6:// (IPv6
              only). Note that IP addresses need not use tcp4/tcp6; these are optional. Accepted formats are:

              IPv4 address (tcp://192.0.2.42)
                     The default port (22000) is used.

              IPv4 address and port (tcp://192.0.2.42:12345)
                     The address and port is used as given.

              IPv6 address (tcp://[2001:db8::23:42])
                     The default port (22000) is used. The address must be enclosed in square brackets.

              IPv6 address and port (tcp://[2001:db8::23:42]:12345)
                     The address and port is used as given. The address must be enclosed in square brackets.

              Host name (tcp6://fileserver)
                     The host name will be used on the default port (22000) and connections  will  be  attempted
                     only via IPv6.

              Host name and port (tcp://fileserver:12345)
                     The  host  name  will  be used on the given port and connections will be attempted via both
                     IPv4 and IPv6, depending on name resolution.

              dynamic
                     The word dynamic (without tcp:// prefix) means to use local and global  discovery  to  find
                     the device.

       paused True if synchronization with this devices is (temporarily) suspended.

       allowedNetwork
              If given, this restricts connections to this device to only this network (see allowed-networks).

GUI ELEMENT

          <gui enabled="true" tls="false" debugging="false">
              <address>127.0.0.1:8384</address>
              <apikey>l7jSbCqPD95JYZ0g8vi4ZLAMg3ulnN1b</apikey>
              <theme>default</theme>
          </gui>

       There  must  be  exactly  one  gui  element.  The  GUI configuration is also used by the rest-api and the
       event-api. The following attributes may be set on the gui element:

       enabled
              If not true, the GUI and API will not be started.

       tls    If set to true, TLS (HTTPS) will be enforced. Non-HTTPS requests will be redirected to HTTPS. When
              this is set to false, TLS connections are still possible but it is not mandatory.

       debugging
              This enables profiling and additional debugging endpoints in the rest-api.

       The following child elements may be present:

       address
              Set the listen address. One address element must be present. Allowed address formats are:

              IPv4 address and port (127.0.0.1:8384)
                     The address and port is used as given.

              IPv6 address and port ([::1]:8384)
                     The address and port is used as given. The address must be enclosed in square brackets.

              Wildcard and port (0.0.0.0:12345, [::]:12345, :12345)
                     These are equivalent and will result in Syncthing listening on all interfaces via both IPv4
                     and IPv6.

       user   Set to require authentication.

       password
              Contains the bcrypt hash of the real password.

       apikey If set, this is the API key that enables usage of the REST interface.

       insecureAdminAccess
              If  true,  this  allows  access  to  the  web  GUI  from  outside  (i.e.  not  localhost)  without
              authorization. A warning will displayed about this setting on startup.

       theme  The name of the theme to use.

OPTIONS ELEMENT

          <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>
              <limitBandwidthInLan>false</limitBandwidthInLan>
              <minHomeDiskFree unit="%">1</minHomeDiskFree>
              <releasesURL>https://api.github.com/repos/syncthing/syncthing/releases?per_page=30</releasesURL>
              <overwriteRemoteDeviceNamesOnConnect>false</overwriteRemoteDeviceNamesOnConnect>
              <tempIndexMinBlocks>10</tempIndexMinBlocks>
              <defaultFolderPath>~</defaultFolderPath>
          </options>

       The options element contains all other global configuration options.

       listenAddress
              The listen address for incoming sync connections. See Listen Addresses for allowed syntax.

       globalAnnounceServer
              A URI to a global announce (discovery) server, or the word default 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:
              insecure to prevent certificate validation (required for HTTP URLs) and id=<device ID> to  perform
              certificate pinning. The device ID to use is printed by the discovery server on startup.

       globalAnnounceEnabled
              Whether to announce this device to the global announce (discovery) server, and also use it to look
              up other devices.

       localAnnounceEnabled
              Whether to send announcements to the local LAN, also use such announcements to find other devices.

       localAnnouncePort
              The port on which to listen and send IPv4 broadcast announcements to.

       localAnnounceMCAddr
              The group address and port to join and send IPv6 multicast announcements on.

       maxSendKbps
              Outgoing data rate limit, in kibibytes per second.

       maxRecvKbps
              Incoming data rate limits, in kibibytes per second.

       reconnectionIntervalS
              The number of seconds to wait between each attempt to connect to currently unconnected devices.

       relaysEnabled
              When true, relays will be connected to and potentially used for device to device connections.

       relayReconnectIntervalM
              Sets the interval, in minutes, between relay reconnect attempts.

       startBrowser
              Whether to attempt to start a browser to show the GUI when Syncthing starts.

       natEnabled
              Whether to attempt to perform a UPnP and NAT-PMP port mapping for incoming sync connections.

       natLeaseMinutes
              Request a lease for this many minutes; zero to request a permanent lease.

       natRenewalMinutes
              Attempt to renew the lease after this many minutes.

       natTimeoutSeconds
              When scanning for UPnP devices, wait this long for responses.

       urAccepted
              Whether the user has accepted to submit anonymous usage data. The default, 0, mean  the  user  has
              not made a choice, and Syncthing will ask at some point in the future. -1 means no, a number above
              zero means that that version of usage reporting has been accepted.

       urSeen The highest usage reporting version that has already been shown in the web GUI.

       urUniqueID
              The unique ID sent together with the usage report. Generated when usage reporting is enabled.

       urURL  The URL to post usage report data to, when enabled.

       urPostInsecurely
              When true, the UR URL can be http instead of https, or have a self-signed certificate. The default
              is false.

       urInitialDelayS
              The time to wait from startup to the first usage report being sent. Allows the system to stabilize
              before reporting statistics.

       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).

       autoUpgradeIntervalH
              Check for a newer version after this many hours. Set to zero to disable automatic upgrades.

       upgradeToPreReleases
              If true, automatical upgrades include release candidates (see release-channels).

       keepTemporariesH
              Keep temporary failed transfers for this many hours. While the temporaries are kept, the data they
              contain need not be transferred again.

       cacheIgnoredFiles
              Whether to cache the results of ignore pattern evaluation. Performance at  the  price  of  memory.
              Defaults to false as the cost for evaluating ignores is usually not significant.

       progressUpdateIntervalS
              How often in seconds the progress of ongoing downloads is made available to the GUI.

       limitBandwidthInLan
              Whether to apply bandwidth limits to devices in the same broadcast domain as the local device.

       minHomeDiskFree
              The  minimum  required  free  space  that  should  be  available  on  the  partition  holding  the
              configuration and index. Accepted units are %, kB, MB, GB and TB.

       releasesURL
              The URL from which release information is loaded, for automatic upgrades.

       alwaysLocalNet
              Network that should be considered as local given in CIDR notation.

       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.

       tempIndexMinBlocks
              When exchanging index information for incomplete transfers, only take into account files that have
              at least this many blocks.

       unackedNotificationID
              ID of a notification to be displayed in the web GUI. Will be removed once the user acknowledged it
              (e.g. an transition notice on an upgrade).

       trafficClass
              Specify a type of service (TOS)/traffic class of outgoing packets.

       weakHashSelectionMethod
              Specify whether weak hashing is used,  possible  options  are  WeakHashAlways,  WeakHashNever  and
              WeakHashAuto.  Deciding  automatically  means  running benchmarks at startup to decide whether the
              performance impact is acceptable (this is the default).

       stunServer
              Server  to  be  used  for  STUN,  given  as  ip:port.  The  keyword  default  gets   expanded   to
              stun.callwithus.com:3478,           stun.counterpath.com:3478,          stun.counterpath.net:3478,
              stun.ekiga.net:3478,  stun.ideasip.com:3478,  stun.internetcalls.com:3478,   stun.schlund.de:3478,
              stun.sipgate.net:10000,  stun.sipgate.net:3478, stun.voip.aebc.com:3478, stun.voiparound.com:3478,
              stun.voipbuster.com:3478, stun.voipstunt.com:3478, stun.voxgratia.org:3478 and  stun.xten.com:3478
              (this is the default).

       stunKeepaliveSeconds
              Interval  in  seconds  between contacting a STUN server to maintain NAT mapping. Default is 24 and
              you can set it to 0 to disable contacting STUN servers.

       kcpNoDelay,     kcpUpdateIntervalMs,     kcpFastResend,     kcpCongestionControl,      kcpSendWindowSize,
       kcpReceiveWindowSize
              Various KCP tweaking parameters.

       defaultFolderPath
              The UI will propose to create new folders at this path. This can be disabled by setting this to an
              empty string.

       relayServer
              Deprecated since version v0.13.0: You can now specify custom relay servers with listenAddress.

              Lists one or more relay servers, on the format relay://hostname:port.  Alternatively, a relay list
              can be loaded over https by using an URL like dynamic+https://somehost/path. The default loads the
              list of relays from the relay pool server, relays.syncthing.net.

       pingTimeoutS
              Deprecated since version v0.12.0.

              Ping-timeout in seconds. Don’t change it unless you are having issues due to  slow  response  time
              (slow connection/cpu) and large index exchanges.

       pingIdleTimeS
              Deprecated since version v0.12.0.

              Ping interval in seconds. Don’t change it unless you feel it’s necessary.

   Listen Addresses
       The following address types are accepted in sync protocol listen addresses:

       Default listen addresses (default)
              This is equivalent to tcp://0.0.0.0:22000 and dynamic+https://relays.syncthing.net/endpoint.

       TCP wildcard and port (tcp://0.0.0.0:22000, tcp://:22000)
              These  are  equivalent and will result in Syncthing listening on all interfaces, IPv4 and IPv6, on
              the specified port.

       TCP IPv4 wildcard and port (tcp4://0.0.0.0:22000, tcp4://:22000)
              These are equivalent and will result in Syncthing listening on all interfaces via IPv4 only.

       TCP IPv4 address and port (tcp4://192.0.2.1:22000)
              This results in Syncthing listening on the specified address and port, IPv4 only.

       TCP IPv6 wildcard and port (tcp6://[::]:22000, tcp6://:22000)
              These are equivalent and will result in Syncthing listening on all interfaces via IPv6 only.

       TCP IPv6 address and port (tcp6://[2001:db8::42]:22000)
              This results in Syncthing listening on the specified address and port, IPv6 only.

       Static relay address (relay://192.0.2.42:22067?id=abcd123...)
              Syncthing will connect to and listen for incoming connections via the specified relay address.

   Todo
       Document available URL parameters.

       Dynamic relay pool (dynamic+https://192.0.2.42/relays)
              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.

   Todo
       Document available URL parameters.

SYNCING CONFIGURATION FILES

       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.

       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-sendonly  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.

       If  you’d  like  to  sync  your home folder in non-send-only mode, you may add the folder that stores the
       configuration files to the ignore list.  If you’d also like  to  backup  your  configuration  files,  add
       another folder in send-only mode for just the configuration folder.

AUTHOR

       The Syncthing Authors

       2015, The Syncthing Authors