mirror of
https://github.com/octoleo/syncthing.git
synced 2024-11-08 22:31:04 +00:00
232 lines
6.6 KiB
Groff
232 lines
6.6 KiB
Groff
.\" Man page generated from reStructuredText.
|
|
.
|
|
.TH "STRELAYSRV" "1" "October 16, 2016" "v0.14" "Syncthing"
|
|
.SH NAME
|
|
strelaysrv \- Syncthing Relay Server
|
|
.
|
|
.nr rst2man-indent-level 0
|
|
.
|
|
.de1 rstReportMargin
|
|
\\$1 \\n[an-margin]
|
|
level \\n[rst2man-indent-level]
|
|
level margin: \\n[rst2man-indent\\n[rst2man-indent-level]]
|
|
-
|
|
\\n[rst2man-indent0]
|
|
\\n[rst2man-indent1]
|
|
\\n[rst2man-indent2]
|
|
..
|
|
.de1 INDENT
|
|
.\" .rstReportMargin pre:
|
|
. RS \\$1
|
|
. nr rst2man-indent\\n[rst2man-indent-level] \\n[an-margin]
|
|
. nr rst2man-indent-level +1
|
|
.\" .rstReportMargin post:
|
|
..
|
|
.de UNINDENT
|
|
. RE
|
|
.\" indent \\n[an-margin]
|
|
.\" old: \\n[rst2man-indent\\n[rst2man-indent-level]]
|
|
.nr rst2man-indent-level -1
|
|
.\" new: \\n[rst2man-indent\\n[rst2man-indent-level]]
|
|
.in \\n[rst2man-indent\\n[rst2man-indent-level]]u
|
|
..
|
|
.SH SYNOPSIS
|
|
.INDENT 0.0
|
|
.INDENT 3.5
|
|
.sp
|
|
.nf
|
|
.ft C
|
|
strelaysrv [\-debug] [\-ext\-address=<address>] [\-global\-rate=<bytes/s>] [\-keys=<dir>] [\-listen=<listen addr>]
|
|
[\-message\-timeout=<duration>] [\-network\-timeout=<duration>] [\-per\-session\-rate=<bytes/s>]
|
|
[\-ping\-interval=<duration>] [\-pools=<pool addresses>] [\-provided\-by=<string>] [\-status\-srv=<listen addr>]
|
|
.ft P
|
|
.fi
|
|
.UNINDENT
|
|
.UNINDENT
|
|
.SH DESCRIPTION
|
|
.sp
|
|
Syncthing relies on a network of community\-contributed relay servers. Anyone
|
|
can run a relay server, and it will automatically join the relay pool and be
|
|
available to Syncthing users. The current list of relays can be found at
|
|
\fI\%https://relays.syncthing.net\fP\&.
|
|
.SH OPTIONS
|
|
.INDENT 0.0
|
|
.TP
|
|
.B \-debug
|
|
Enable debug output.
|
|
.UNINDENT
|
|
.INDENT 0.0
|
|
.TP
|
|
.B \-ext\-address=<address>
|
|
An optional address to advertising as being available on. Allows listening
|
|
on an unprivileged port with port forwarding from e.g. 443, and be
|
|
connected to on port 443.
|
|
.UNINDENT
|
|
.INDENT 0.0
|
|
.TP
|
|
.B \-global\-rate=<bytes/s>
|
|
Global rate limit, in bytes/s.
|
|
.UNINDENT
|
|
.INDENT 0.0
|
|
.TP
|
|
.B \-keys=<dir>
|
|
Directory where cert.pem and key.pem is stored (default ".").
|
|
.UNINDENT
|
|
.INDENT 0.0
|
|
.TP
|
|
.B \-listen=<listen addr>
|
|
Protocol listen address (default ":22067").
|
|
.UNINDENT
|
|
.INDENT 0.0
|
|
.TP
|
|
.B \-message\-timeout=<duration>
|
|
Maximum amount of time we wait for relevant messages to arrive (default 1m0s).
|
|
.UNINDENT
|
|
.INDENT 0.0
|
|
.TP
|
|
.B \-network\-timeout=<duration>
|
|
Timeout for network operations between the client and the relay. If no data
|
|
is received between the client and the relay in this period of time, the
|
|
connection is terminated. Furthermore, if no data is sent between either
|
|
clients being relayed within this period of time, the session is also
|
|
terminated. (default 2m0s)
|
|
.UNINDENT
|
|
.INDENT 0.0
|
|
.TP
|
|
.B \-per\-session\-rate=<bytes/s>
|
|
Per session rate limit, in bytes/s.
|
|
.UNINDENT
|
|
.INDENT 0.0
|
|
.TP
|
|
.B \-ping\-interval=<duration>
|
|
How often pings are sent (default 1m0s).
|
|
.UNINDENT
|
|
.INDENT 0.0
|
|
.TP
|
|
.B \-pools=<pool addresses>
|
|
Comma separated list of relay pool addresses to join (default
|
|
"\fI\%https://relays.syncthing.net/endpoint\fP"). Blank to disable announcement to
|
|
a pool, thereby remaining a private relay.
|
|
.UNINDENT
|
|
.INDENT 0.0
|
|
.TP
|
|
.B \-provided\-by=<string>
|
|
An optional description about who provides the relay.
|
|
.UNINDENT
|
|
.INDENT 0.0
|
|
.TP
|
|
.B \-status\-srv=<listen addr>
|
|
Listen address for status service (blank to disable) (default ":22070").
|
|
.UNINDENT
|
|
.SH SETTING UP
|
|
.sp
|
|
Primarily, you need to decide on a directory to store the TLS key and
|
|
certificate and a listen port. The default listen port of 22067 works, but for
|
|
optimal compatibility a well known port for encrypted traffic such as 443 is
|
|
recommended. This may require additional setup to work without running
|
|
as root or a privileged user, see \fI\%Running on port 443 as an unprivileged user\fP
|
|
below. In principle something similar to this should work on a Linux/Unix
|
|
system:
|
|
.INDENT 0.0
|
|
.INDENT 3.5
|
|
.sp
|
|
.nf
|
|
.ft C
|
|
$ sudo useradd relaysrv
|
|
$ sudo mkdir /etc/relaysrv
|
|
$ sudo chown relaysrv /etc/relaysrv
|
|
$ sudo \-u relaysrv /usr/local/bin/relaysrv \-keys /etc/relaysrv
|
|
.ft P
|
|
.fi
|
|
.UNINDENT
|
|
.UNINDENT
|
|
.sp
|
|
This creates a user \fBrelaysrv\fP and a directory \fB/etc/relaysrv\fP to store
|
|
the keys. The keys are generated on first startup. The relay will join the
|
|
global relay pool, unless a \fB\-pools=""\fP argument is given.
|
|
.sp
|
|
To make the relay server start automatically at boot, use the recommended
|
|
procedure for your operating system.
|
|
.SS Running on port 443 as an unprivileged user
|
|
.sp
|
|
It is recommended that you run the relay on port 443 (or another port which is
|
|
commonly allowed through corporate firewalls), in order to maximise the chances
|
|
that people are able to connect. However, binding to ports below 1024 requires
|
|
root privileges, and running a relay as root is not recommended. Thankfully
|
|
there are a couple of approaches available to you.
|
|
.sp
|
|
One option is to run the relay on port 22067, and use an \fBiptables\fP rule
|
|
to forward traffic from port 443 to port 22067, for example:
|
|
.INDENT 0.0
|
|
.INDENT 3.5
|
|
.sp
|
|
.nf
|
|
.ft C
|
|
iptables \-t nat \-A PREROUTING \-i eth0 \-p tcp \-\-dport 443 \-j REDIRECT \-\-to\-port 22067
|
|
.ft P
|
|
.fi
|
|
.UNINDENT
|
|
.UNINDENT
|
|
.sp
|
|
Or, if you\(aqre using \fBufw\fP, add the following to \fB/etc/ufw/before.rules\fP:
|
|
.INDENT 0.0
|
|
.INDENT 3.5
|
|
.sp
|
|
.nf
|
|
.ft C
|
|
*nat
|
|
:PREROUTING ACCEPT [0:0]
|
|
:POSTROUTING ACCEPT [0:0]
|
|
|
|
\-A PREROUTING \-i eth0 \-p tcp \-\-dport 443 \-j REDIRECT \-\-to\-port 22067
|
|
|
|
COMMIT
|
|
.ft P
|
|
.fi
|
|
.UNINDENT
|
|
.UNINDENT
|
|
.sp
|
|
You will need to start \fBrelaysrv\fP with \fB\-ext\-address ":443"\fP\&. This tells
|
|
\fBrelaysrv\fP that it can be contacted on port 443, even though it is listening
|
|
on port 22067. You will also need to let both port 443 and 22067 through your
|
|
firewall.
|
|
.sp
|
|
Another option is \fI\%described here\fP <\fBhttps://wiki.apache.org/httpd/NonRootPortBinding\fP>,
|
|
although your milage may vary.
|
|
.SH FIREWALL CONSIDERATIONS
|
|
.sp
|
|
The relay server listens on two ports by default. One for data connections and the other
|
|
for providing public statistics at \fI\%https://relays.syncthing.net\fP\&. The firewall, such as
|
|
\fBiptables\fP, must permit incoming TCP connetions to the following ports:
|
|
.INDENT 0.0
|
|
.IP \(bu 2
|
|
Data port: \fB22067/tcp\fP overriden with \fB\-listen\fP and advertised with \fB\-ext\-address\fP
|
|
.IP \(bu 2
|
|
Status port: \fB22070/tcp\fP overriden with \fB\-status\-srv\fP
|
|
.UNINDENT
|
|
.sp
|
|
Runtime \fBiptables\fP rules to allow access to the default ports:
|
|
.INDENT 0.0
|
|
.INDENT 3.5
|
|
.sp
|
|
.nf
|
|
.ft C
|
|
iptables \-I INPUT \-p tcp \-\-dport 22067 \-j ACCEPT
|
|
iptables \-I INPUT \-p tcp \-\-dport 22070 \-j ACCEPT
|
|
.ft P
|
|
.fi
|
|
.UNINDENT
|
|
.UNINDENT
|
|
.sp
|
|
Please consult Linux distribution documentation to persist firewall rules.
|
|
.SH SEE ALSO
|
|
.sp
|
|
\fIsyncthing\-relay(7)\fP, \fIsyncthing\-faq(7)\fP,
|
|
\fIsyncthing\-networking(7)\fP
|
|
.SH AUTHOR
|
|
The Syncthing Authors
|
|
.SH COPYRIGHT
|
|
2015, The Syncthing Authors
|
|
.\" Generated by docutils manpage writer.
|
|
.
|