3 .\" Manual page created by:
5 .\" Guus Sliepen <guus@tinc-vpn.org>
12 .Op Fl -config Ns = Ns Ar DIR
14 .Op Fl -debug Ns Op = Ns Ar LEVEL
15 .Op Fl -kill Ns Op = Ns Ar SIGNAL
16 .Op Fl -net Ns = Ns Ar NETNAME
17 .Op Fl -generate-keys Ns Op = Ns Ar BITS
18 .Op Fl -option Ns = Ns Ar [HOST.]KEY=VALUE
20 .Op Fl -logfile Ns Op = Ns Ar FILE
21 .Op Fl -pidfile Ns = Ns Ar FILE
22 .Op Fl -bypass-security
24 .Op Fl -user Ns = Ns Ar USER
28 This is the daemon of tinc, a secure virtual private network (VPN) project.
31 will read it's configuration file to determine what virtual subnets it has to serve
32 and to what other tinc daemons it should connect.
33 It will connect to the ethertap or tun/tap device
34 and set up a socket for incoming connections.
35 Optionally a script will be executed to further configure the virtual device.
37 it will detach from the controlling terminal and continue in the background,
38 accepting and setting up connections to other tinc daemons
39 that are part of the virtual private network.
40 Under Windows (not Cygwin) tinc will install itself as a service,
41 which will be restarted automatically after reboots.
43 .Bl -tag -width indent
44 .It Fl c, -config Ns = Ns Ar DIR
45 Read configuration files from
48 .Pa @sysconfdir@/tinc/ .
50 Don't fork and detach.
51 This will also disable the automatic restart mechanism for fatal errors.
52 If not mentioned otherwise, this will show log messages on the standard error output.
53 .It Fl d, -debug Ns Op = Ns Ar LEVEL
54 Increase debug level or set it to
57 .It Fl k, -kill Ns Op = Ns Ar SIGNAL
58 Attempt to kill a running
60 (optionally with the specified
62 instead of SIGTERM) and exit.
63 Under Windows (not Cygwin) the optional argument is ignored,
64 the service will always be stopped and removed.
65 .It Fl n, -net Ns = Ns Ar NETNAME
68 This will let tinc read all configuration files from
69 .Pa @sysconfdir@/tinc/ Ar NETNAME .
74 is the same as not specifying any
76 .It Fl K, -generate-keys Ns Op = Ns Ar BITS
77 Generate public/private RSA keypair and exit.
80 is omitted, the default length will be 2048 bits.
81 When saving keys to existing files, tinc will not delete the old keys,
82 you have to remove them manually.
83 .It Fl o, -option Ns = Ns Ar [HOST.]KEY=VALUE
86 this will set server configuration variable
92 this will set the host configuration variable
98 This option can be used more than once to specify multiple configuration variables.
100 Lock tinc into main memory.
101 This will prevent sensitive data like shared private keys to be written to the system swap files/partitions.
102 .It Fl -logfile Ns Op = Ns Ar FILE
103 Write log entries to a file instead of to the system logging facility.
106 is omitted, the default is
107 .Pa @localstatedir@/log/tinc. Ns Ar NETNAME Ns Pa .log.
108 .It Fl -pidfile Ns = Ns Ar FILE
112 .Pa @localstatedir@/run/tinc. Ns Ar NETNAME Ns Pa .pid.
113 Under Windows this option will be ignored.
114 .It Fl -bypass-security
115 Disables encryption and authentication of the meta protocol.
116 Only useful for debugging.
118 With this option tinc chroots into the directory where network
119 config is located (@sysconfdir@/tinc/NETNAME if -n option is used,
120 or to the directory specified with -c option) after initialization.
121 .It Fl U, -user Ns = Ns Ar USER
122 setuid to the specified
124 after initialization.
126 Display short list of options.
128 Output version information and exit.
131 .Bl -tag -width indent
135 to try to connect to all uplinks immediately.
138 attempts to do this itself,
139 but increases the time it waits between the attempts each time it failed,
142 didn't succeed to connect to an uplink the first time after it started,
143 it defaults to the maximum time of 15 minutes.
145 Partially rereads configuration files.
146 Connections to hosts whose host config file are removed are closed.
147 New outgoing connections specified in
152 option is used, this will also close and reopen the log file,
153 useful when log rotation is used.
155 Temporarily increases debug level to 5.
156 Send this signal again to revert to the original level.
158 Dumps the connection list to syslog.
160 Dumps virtual network device statistics, all known nodes, edges and subnets to syslog.
162 Purges all information remembered about unreachable nodes.
165 The tinc daemon can send a lot of messages to the syslog.
166 The higher the debug level,
167 the more messages it will log.
168 Each level inherits all messages of the previous level:
169 .Bl -tag -width indent
171 This will log a message indicating
173 has started along with a version number.
174 It will also log any serious error.
176 This will log all connections that are made with other tinc daemons.
178 This will log status and error messages from scripts and other tinc daemons.
180 This will log all requests that are exchanged with other tinc daemons. These include
181 authentication, key exchange and connection list updates.
183 This will log a copy of everything received on the meta socket.
185 This will log all network traffic over the virtual private network.
188 .Bl -tag -width indent
189 .It Pa @sysconfdir@/tinc/
190 Directory containing the configuration files tinc uses.
191 For more information, see
193 .It Pa @localstatedir@/run/tinc. Ns Ar NETNAME Ns Pa .pid
194 The PID of the currently running
196 is stored in this file.
201 option may not work correctly.
203 .Sy The cryptography in tinc is not well tested yet. Use it at your own risk!
205 If you find any bugs, report them to tinc@tinc-vpn.org.
207 A lot, especially security auditing.
210 .Pa https://www.tinc-vpn.org/ ,
211 .Pa http://www.cabal.org/ .
213 The full documentation for tinc is maintained as a Texinfo manual.
214 If the info and tinc programs are properly installed at your site,
217 should give you access to the complete manual.
219 tinc comes with ABSOLUTELY NO WARRANTY.
220 This is free software, and you are welcome to redistribute it under certain conditions;
221 see the file COPYING for details.
224 .An "Guus Sliepen" Aq guus@tinc-vpn.org
226 And thanks to many others for their contributions to tinc!