1 Version 1.1pre11 December 27 2014
3 * Added a "network" command to list or switch networks.
5 * Switched to Ed25519 keys and the ChaCha-Poly1305 cipher for the new protocol.
7 * AutoConnect is now a boolean option, when enabled tinc always tries to keep
8 at least three meta-connections open.
10 * The new protocol now uses UDP much more often.
12 * Tinc "del" and "get" commands now return a non-zero exit code when they
13 don't find the requested variable.
15 * Updated documentation.
17 * Added a "DeviceStandby" option to defer running tinc-up until a working
18 connection is made, and which on Windows will also change the network
19 interface link status accordingly.
21 * Tinc now tells the resolver to reload /etc/resolv.conf when it receives
24 * Improved error messages and event loop handling on Windows.
26 * LocalDiscovery now uses local address learned from other nodes, and is
29 * Added a "BroadcastSubnet" option to change the behavior of broadcast packets
32 * Added support for dotted quad notation in IPv6 (e.g. ::1.2.3.4).
34 * Improved format of printed Subnets, MAC and IPv6 addresses.
36 * Added a "--batch" option to force the tinc CLI to run in non-interactive
39 * Improve default Device selection on *BSD and Mac OS X.
41 * Allow running tinc without RSA keys.
43 Thanks to Etienne Dechamps, Sven-Haegar Koch, William A. Kennington III,
44 Baptiste Jonglez, Alexis Hildebrandt, Armin Fisslthaler, Franz Pletz, Alexander
45 Ried and Saverio Proto for their contributions to this version of tinc.
47 Version 1.1pre10 February 7 2014
49 * Added a benchmark tool (sptps_speed) for the new protocol.
51 * Fixed a crash when using Name = $HOST while $HOST is not set.
53 * Use AES-256-GCM for the new protocol.
55 * Updated support for Solaris.
57 * Allow running tincd without a private ECDSA key present when
58 ExperimentalProtocol is not explicitly set.
60 * Enable various compiler hardening flags by default.
62 * Added support for a "conf.d" configuration directory.
64 * Fix tinc-gui on Windows, also allowing it to connect to a 32-bits tincd when
65 tinc-gui is run in a 64-bits Python environment.
67 * Added a "ListenAddress" option, which like BindToAddress adds more listening
68 address/ports, but doesn't bind to them for outgoing sockets.
70 * Make invitations work better when the "invite" and "join" commands are not
73 * When creating meta-connections to a node for which no Address statement is
74 specified, try to use addresses learned from other nodes.
76 Thanks to Dennis Joachimsthaler and Florent Clairambault for their contribution
77 to this version of tinc.
79 Version 1.1pre9 September 8 2013
81 * The UNIX socket is now created before tinc-up is called.
83 * Windows users can now use any extension that is in %PATHEXT% for scripts,
86 * Outgoing sockets are bound to the address of the listening sockets again,
87 when there is no ambiguity.
89 * Added invitation-created and invitation-accepted scripts.
91 * Invited nodes now learn of the Mode and Broadcast settings of the VPN.
93 * Joining a VPN with an invitation now also works on Windows.
95 * The port number tincd is listening on is now always included in the
98 * A running tincd is now correctly informed when a new invitation has been
101 * Several bug fixes for the new protocol.
103 * Added a test suite.
105 Thanks to Etienne Dechamps for his contribution to this version of tinc.
107 Version 1.1pre8 August 13 2013
109 * ExperimentalProtocol is now enabled by default.
111 * Added an invitation protocol that makes it easy to invite new nodes.
113 * Added the LocalDiscoveryAddress option to change the broadcast address used
116 * Limit the rate of incoming meta-connections.
118 * Many small bug fixes and code cleanups.
120 Thanks to Etienne Dechamps and Sven-Haegar Koch for their contributions to this
123 Version 1.1pre7 April 22 2013
125 * Fixed large latencies on Windows.
127 * Renamed the tincctl tool to tinc.
129 * Simplified changing the configuration using the tinc tool.
131 * Added a full description of the ExperimentalProtocol to the manual.
133 * Drop packets forwarded via TCP if they are too big (CVE-2013-1428).
135 Thanks to Martin Schobert for auditing tinc and reporting the vulnerability.
137 Version 1.1pre6 February 20 2013
139 * Fixed tincd exitting immediately on Windows.
141 * Detect PMTU increases.
143 * Fixed crashes when using a SOCKS5 proxy.
145 * Fixed control connection when using a proxy.
147 Version 1.1pre5 January 20 2013
149 * Fixed long delays and possible hangs on Windows.
151 * Fixed support for the tunemu device on iOS, the UML and VDE devices.
153 * Small improvements to the documentation and error messages.
155 * Fixed broadcast packets not reaching the whole VPN.
157 * Tincctl now connects via a UNIX socket to the tincd on platforms that
160 * The PriorityInheritance option now also works in switch mode.
162 Version 1.1pre4 December 5 2012
164 * Added the "AutoConnect" option which will let tinc automatically select
165 which nodes to connect to.
167 * Improved performance of VLAN-tagged IP traffic inside the VPN.
169 * Ensured LocalDiscovery works with multiple BindToAddress statements and/or
172 * Dropped dependency on libevent.
174 * Fixed Windows version not reading packets from the TAP adapter.
176 Version 1.1pre3 October 14 2012
178 * New experimental protocol:
179 * Uses 521 bit ECDSA keys for authentication.
180 * Uses AES-256-CTR and HMAC-SHA256.
181 * Always provides perfect forward secrecy.
182 * Used for both meta-connections and VPN packets.
183 * VPN packets are encrypted end-to-end.
185 * Many improvements to tincctl:
186 * "config" command shows/adds/changes configuration variables.
187 * "export" and "import" commands help exchange configuration files.
188 * "init" command sets up initial configuration files.
189 * "info" command shows details about a node, subnet or address.
190 * "log" command shows live log messages.
191 * Without a command it acts as a shell, with history and TAB completion.
192 * Improved starting/stopping tincd.
193 * Improved graph output.
195 * When trying to directly send UDP packets to a node for which multiple
196 addresses are known, all of them are tried.
198 * Many small fixes, code cleanups and documentation updates.
200 Version 1.1pre2 July 17 2011
202 * .cookie files are renamed to .pid files, which are compatible with 1.0.x.
204 * Experimental protocol enhancements that can be enabled with the option
205 ExperimentalProtocol = yes:
207 * Ephemeral ECDH key exchange will be used for both the meta protocol and
209 * Key exchanges are signed with ECDSA.
210 * ECDSA public keys are automatically exchanged after RSA authentication if
211 nodes do not know each other's ECDSA public key yet.
213 Version 1.1pre1 June 25 2011
215 * Control interface allows control of a running tinc daemon. Used by:
216 * tincctl, a commandline utility
217 * tinc-gui, a preliminary GUI implemented in Python/wxWidgets
219 * Code cleanups and reorganization.
221 * Repleacable cryptography backend, currently supports OpenSSL and libgcrypt.
223 * Use libevent to handle I/O events and timeouts.
225 * Use splay trees instead of AVL trees to manage internal datastructures.
227 Thanks to Scott Lamb and Sven-Haegar Koch for their contributions to this
230 Version 1.0.22 August 13 2013
232 * Fixed the combination of Mode = router and DeviceType = tap.
234 * The $NAME variable is now set in subnet-up/down scripts.
236 * Tinc now gives an error when unknown options are given on the command line.
238 * Tinc now correctly handles a space between a short command line option and
239 an optional argument.
241 Thanks to Etienne Dechamps for his contribution to this version of tinc.
243 Version 1.0.21 April 22 2013
245 * Drop packets forwarded via TCP if they are too big (CVE-2013-1428).
247 Thanks to Martin Schobert for auditing tinc and reporting this vulnerability.
249 Version 1.0.20 March 03 2013
251 * Use /dev/tap0 by default on FreeBSD and NetBSD when using switch mode.
253 * Minor improvements and clarifications in the documentation.
255 * Allow tinc to be cross-compiled with Android's NDK.
257 * The discovered PMTU is now also applied to VLAN tagged traffic.
259 * The LocalDiscovery option now makes use of all addresses tinc is bound to.
261 * Fixed support for tunemu on iOS devices.
263 * The PriorityInheritance option now also works with switch mode.
265 * Fixed tinc crashing when using a SOCKS5 proxy.
267 Thanks to Mesar Hameed, Vilbrekin and Martin Schürrer for their contributions
268 to this version of tinc.
270 Version 1.0.19 June 25 2012
272 * Allow :: notation in IPv6 Subnets.
274 * Add support for systemd style socket activation.
276 * Allow environment variables to be used for the Name option.
278 * Add basic support for SOCKS proxies, HTTP proxies, and proxying through an
281 Version 1.0.18 March 25 2012
283 * Fixed IPv6 in switch mode by turning off DecrementTTL by default.
285 * Allow a port number to be specified in BindToAddress, which also allows tinc
286 to listen on multiple ports.
288 * Add support for multicast communication with UML/QEMU/KVM.
290 Version 1.0.17 March 10 2012
292 * The DeviceType option can now be used to select dummy, raw socket, UML and
293 VDE devices without needing to recompile tinc.
295 * Allow multiple BindToAddress statements.
297 * Decrement TTL value of IPv4 and IPv6 packets.
299 * Add LocalDiscovery option allowing tinc to detect peers that are behind the
302 * Accept Subnets passed with the -o option when StrictSubnets = yes.
304 * Disabling old RSA keys when generating new ones now also works properly on
307 Version 1.0.16 July 23 2011
309 * Fixed a performance issue with TCP communication under Windows.
311 * Fixed code that, during network outages, would cause tinc to exit when it
312 thought two nodes with identical Names were on the VPN.
314 Version 1.0.15 June 24 2011
316 * Improved logging to file.
318 * Reduced amount of process wakeups on platforms which support pselect().
320 * Fixed ProcessPriority option under Windows.
322 Thanks to Loïc Grenié for his contribution to this version of tinc.
324 Version 1.0.14 May 8 2011
326 * Fixed reading configuration files that do not end with a newline. Again.
328 * Allow arbitrary configuration options being specified on the command line.
330 * Allow all options in both tinc.conf and the local host config file.
332 * Configurable replay window, UDP send and receive buffers for performance tuning.
334 * Try harder to get UDP communication back after falling back to TCP.
336 * Initial support for attaching tinc to a VDE switch.
338 * DragonFly BSD support.
340 * Allow linking with OpenSSL 1.0.0.
342 Thanks to Brandon Black, Julien Muchembled, Michael Tokarev, Rumko and Timothy
343 Redaelli for their contributions to this version of tinc.
345 Version 1.0.13 Apr 11 2010
347 * Allow building tinc without LZO and/or Zlib.
349 * Clamp MSS of TCP packets in both directions.
351 * Experimental StrictSubnets, Forwarding and DirectOnly options,
352 giving more control over information and packets received from/sent to other
355 * Ensure tinc never sends symbolic names for ports over the wire.
357 Version 1.0.12 Feb 3 2010
359 * Really allow fast roaming of hosts to other nodes in a switched VPN.
361 * Fixes missing or incorrect environment variables when calling host-up/down
362 and subnet-up/down scripts in some cases.
364 * Allow port to be specified in Address statements.
366 * Clamp MSS of TCP packets to the discovered path MTU.
368 * Let two nodes behind NAT learn each others current UDP address and port via
369 a third node, potentially allowing direct communications in a similar way to
372 Version 1.0.11 Nov 1 2009
374 * Fixed potential crash when the HUP signal is sent.
376 * Fixes handling of weighted Subnets in switch and hub modes, preventing
377 unnecessary broadcasts.
379 * Works around a MinGW bug that caused packets to Windows nodes to always be
382 * Improvements to the PMTU discovery code, especially on Windows.
384 * Use UDP again in certain cases where 1.0.10 was too conservative and fell
385 back to TCP unnecessarily.
387 * Allow fast roaming of hosts to other nodes in a switched VPN.
389 Version 1.0.10 Oct 18 2009
391 * Fixed potential crashes during shutdown and (in rare conditions) when other
392 nodes disconnected from the VPN.
394 * Improved NAT handling: tinc now copes with mangled port numbers, and will
395 automatically fall back to TCP if direct UDP connection between nodes is not
396 possible. The TCPOnly option should not have to be used anymore.
398 * Allow configuration files with CRLF line endings to be read on UNIX.
400 * Disable old RSA keys when generating new ones, and raise the default size of
401 new RSA keys to 2048 bits.
403 * Many fixes in the path MTU discovery code, especially when Compression is
406 * Tinc can now drop privileges and/or chroot itself.
408 * The TunnelServer code now just ignores information from clients instead of
411 * Improved performance on Windows by using the new ProcessPriority option and
412 by making the handling of packets received from the TAP-Win32 adapter more
415 * Code cleanups: tinc now follows the C99 standard, copyright headers have
416 been updated to include patch authors, checkpoint tracing and localisation
417 features have been removed.
419 * Support for (jailbroken) iPhone and iPod Touch has been added.
421 Thanks to Florian Forster, Grzegorz Dymarek and especially Michael Tokarev for
422 their contributions to this version of tinc.
424 Version 1.0.9 Dec 26 2008
426 * Fixed tinc as a service under Windows 2003.
428 * Fixed reading configuration files that do not end with a newline.
430 * Fixed crashes in situations where hostnames could not be resolved or hosts
431 would disconnect at the same time as session keys were exchanged.
433 * Improved default settings of tun and tap devices on BSD platforms.
435 * Make IPv6 sockets bind only to IPv6 on Linux.
437 * Enable path MTU discovery by default.
439 * Fixed a memory leak that occured when connections were closed.
441 Thanks to Max Rijevski for his contributions to this version of tinc.
443 Version 1.0.8 May 16 2007
445 * Fixed some memory and resource leaks.
447 * Made network sockets non-blocking under Windows.
449 Thanks to Scott Lamb and "dnk" for their contributions to this version of tinc.
451 Version 1.0.7 Jan 5 2007
453 * Fixed a bug that caused slow network speeds on Windows.
455 * Fixed a bug that caused tinc unable to write packets to the tun device on
458 Version 1.0.6 Dec 18 2006
460 * More flexible detection of the LZO libraries when compiling.
462 * Fixed a bug where broadcasts in switch and hub modes sometimes would not
463 work anymore when part of the VPN had become disconnected from the rest.
465 Version 1.0.5 Nov 14 2006
467 * Lots of small fixes.
469 * Broadcast packets no longer grow in size with each hop. This should
470 fix switch mode (again).
472 * Generic host-up and host-down scripts.
474 * Optionally dump graph in graphviz format to a file or a script.
476 * Support LZO 2.0 and later.
478 Thanks to Scott Lamb for his contributions to this version of tinc.
480 Version 1.0.4 May 4 2005
482 * Fix switch and hub modes.
484 * Optionally start scripts when a Subnet becomes (un)reachable.
486 Version 1.0.3 Nov 11 2004
488 * Show error message when failing to write a PID file.
490 * Ignore spaces at end of lines in config files.
492 * Fix handling of late packets.
494 * Unify BSD tun/tap device handling. This allows IPv6 on tun devices and
495 anything on tap devices as long as the underlying OS supports it.
497 * Handle IPv6 on Solaris tun devices.
499 * Allow tinc to work properly under Windows XP SP2.
501 * Allow VLAN tagged Ethernet frames in switch and hub mode.
503 * Experimental PMTUDiscovery, TunnelServer and BlockingTCP options.
505 Version 1.0.2 Nov 8 2003
507 * Fix address and hostname resolving under Windows.
509 * Remove warnings about non-existing scripts and unsupported address families.
511 * Use the event logger under Windows.
513 * Fix quoting of filenames and command line arguments under Windows.
515 * Strict checks for length incoming network packets and return values of
516 cryptographic functions,
518 * Fix a bug in metadata handling that made the tinc daemon abort.
520 Version 1.0.1 Aug 14 2003
522 * Allow empty lines in config files.
524 * Fix handling of spaces and backslashes in filenames under native Windows.
526 * Allow scripts to be executed under native Windows.
528 * Update documentation, make it less Linux specific.
530 Version 1.0 Aug 4 2003
532 * Lots of small bugfixes and code cleanups.
534 * Throughput doubled and latency reduced.
536 * Added support for LZO compression.
538 * No need to set MAC address or disable ARP anymore.
540 * Added support for Windows 2000 and XP, both natively and in a Cygwin
543 Version 1.0pre8 Sep 16 2002
545 * More fixes for subnets with prefixlength undivisible by 8.
547 * Added support for NetBSD and MacOS/X.
549 * Switched from undirected graphs to directed graphs to avoid certain race
550 conditions and improve scalability.
552 * Generalized broadcasting and forwarding of protocol messages.
554 * Cleanup of source code.
556 Version 1.0pre7 Apr 7 2002
558 * Don't do blocking read()s when getting a signal.
560 * Remove RSA key checking code, since it sometimes thinks perfectly good RSA
563 * Fix handling of subnets when prefixlength isn't divisible by 8.
565 Version 1.0pre6 Mar 27 2002
567 * Improvement of redundant links:
568 * Non-blocking connects.
569 * Protocol broadcast messages can no longer go into an infinite loop.
570 * Graph algorithm updated to look harder for direct connections.
572 * Good support for routing IPv6 packets over the VPN. Works on Linux,
573 FreeBSD, possibly OpenBSD but not on Solaris.
575 * Support for tunnels over IPv6 networks. Works on all supported
578 * Optional compression of UDP connections using zlib.
580 * Optionally let UDP connections inherit TOS field of tunneled packets.
582 * Optionally start scripts when certain hosts become (un)reachable.
584 Version 1.0pre5 Feb 9 2002
586 * Security enhancements:
587 * Added sequence number and optional message authentication code to
589 * Configurable encryption cipher and digest algorithms.
591 * More robust handling of dis- and reconnects.
593 * Added a "switch" and a "hub" mode to allow bridging setups.
595 * Preliminary support for routing of IPv6 packets.
597 * Supports Linux, FreeBSD, OpenBSD and Solaris.
599 Version 1.0pre4 Jan 17 2001
601 * Updated documentation; the documentation now reflects the
602 configuration as it is.
604 * Some internal changes to make tinc scale better for large
605 networks, such as using AVL trees instead of linked lists for the
608 * RSA keys can be stored in separate files if needed. See the
609 documentation for more information.
611 * Tinc has now been reported to run on Linux PowerPC and FreeBSD x86.
613 Version 1.0pre3 Oct 31 2000
615 * The protocol has been redesigned, and although some details are
616 still under discussion, this is secure. Care has been taken to
617 resist most, if not all, attacks.
619 * Unfortunately this protocol is not compatible with earlier versions,
620 nor are earlier versions compatible with this version. Because the
621 older protocol has huge security flaws, we feel that not
622 implementing backwards compatibility is justified.
624 * Some data about the protocol:
625 * It uses public/private RSA keys for authentication (this is the
626 actual fix for the security hole).
627 * All cryptographic functions have been taken out of tinc, instead
628 it uses the OpenSSL library functions.
629 * Offers support for multiple subnets per tinc daemon.
631 * New is also the support for the universal tun/tap device. This
632 means better portability to FreeBSD and Solaris.
634 * Tinc is tested to compile on Solaris, Linux x86, Linux alpha.
636 * Tinc now uses the OpenSSL library for cryptographic operations.
637 More information on getting and installing OpenSSL is in the manual.
638 This also means that the GMP library is no longer required.
640 * Further, thanks to Enrique Zanardi, we have Spanish messages; Matias
641 Carrasco provided us with a Spanish translation of the manual.
643 Version 1.0pre2 May 31 2000
645 * This version has been internationalized; and a Dutch translation has
648 * Two configuration variables have been added:
649 * VpnMask - the IP network mask for the entire VPN, not just our
650 subnet (as given by MyVirtualIP). The Redhat and Debian packages
651 use this variable in their system startup scripts, but it is
653 * Hostnames - if set to `yes', look up the names of IP addresses
654 trying to connect to us. Default set to `no', to prevent lockups
657 * The system startup scripts for Debian and Redhat use
658 /etc/tinc/nets.boot to find out which networks need to be started
661 * Fixes to prevent denial of service attacks by sending random data
662 after connecting (and even when the connection has been established),
663 either random garbage or just nonsensical protocol fields.
665 * Tinc will retry to connect upon startup, does not quit if it doesn't
668 * Hosts that are disconnected implicitly if we lose a connection get
669 deleted from the internal list, to prevent hogging eachother with
670 add and delete requests when the connection is restored.
672 Version 1.0pre1 May 12 2000
676 * Various other bugfixes
678 * Documentation updates
680 Version 0.3.3 Feb 9 2000
682 * Fixed bug that made tinc stop working with latest kernels
686 Version 0.3.2 Nov 12 1999
688 * No more `Invalid filedescriptor' when working with multiple
691 * Forward unknown packets to uplink.
693 Version 0.3.1 Oct 20 1999
695 * Fixed a bug where tinc would exit without a trace.
697 Version 0.3 Aug 20 1999
699 * Pings now work immediately.
701 * All packet sizes get transmitted correctly.
703 Version 0.2.26 Aug 15 1999
705 * Fixed some remaining bugs.
707 * --sysconfdir works with configure.
709 * Last version before 0.3.
711 Version 0.2.25 Aug 8 1999
713 * Improved stability, going towards 0.3 now.
715 Version 0.2.24 Aug 7 1999
717 * Added key aging, there's a new config variable, KeyExpire.
719 * Updated man and info pages.
721 Version 0.2.23 Aug 5 1999
723 * All known bugs fixed, this is a candidate for 0.3.
725 Version 0.2.22 Apr 11 1999
727 * Multiconnection thing is now working nearly perfect :)
729 Version 0.2.21 Apr 10 1999
731 * You shouldn't notice a thing, but a lot has changed wrt key
732 management - except that it refuses to talk to versions < 0.2.20
734 Version 0.2.19 Apr 3 1999
736 * Don't install a libcipher.so.
738 Version 0.2.18 Apr 3 1999
740 * Blowfish library dynamically loaded upon execution.
742 * Included Eric Young's IDEA library.
744 Version 0.2.17 Apr 1 1999
746 * Tincd now re-executes itself in case of a segmentation fault.
748 Version 0.2.16 Apr 1 1999
750 * Wrote tincd.conf(5) man page, which still needs a lot of work.
752 * Config file now accepts and tolerates spaces, and any integer base
753 for integer variables, and better error reporting. See
754 doc/tincd.conf.sample for an example.
756 Version 0.2.15 Mar 29 1999
760 Version 0.2.14 Feb 10 1999
762 * Added --timeout flag and PingTimeout configuration.
763 * Did some first syslog cleanup work.
765 Version 0.2.13 Jan 23 1999
769 Version 0.2.12 Jan 23 1999
771 * Fixed nauseating bug so that it would crash whenever a connection
774 Version 0.2.11 Jan 22 1999
776 * Framework for multiple connections has been done.
778 * Simple manpage for tincd.
780 Version 0.2.10 Jan 18 1999
782 * Passphrase support added.
784 Version 0.2.9 Jan 13 1999
788 Version 0.2.8 Jan 11 1999
790 * A reworked protocol version.
792 * A ping/pong system.
794 * More reliable networking code.
796 * Automatic reconnection.
798 * Still does not work with more than one connection :)
800 * Strips MAC addresses before sending, so there's less overhead, and
803 Version 0.2.7 Jan 3 1999
805 * Several updates to make extending more easy.
807 Version 0.2.6 Dec 20 1998
809 * Point-to-Point connections have been established, including
810 Blowfish encryption and a secret key-exchange.
812 Version 0.2.5 Dec 16 1998
814 * Project renamed to tinc, in honour of TINC.
816 Version 0.2.4 Dec 16 1998
818 * Now it really does ;)
820 Version 0.2.3 Nov 24 1998
822 * It sort of works now.
824 Version 0.2.2 Nov 20 1998
828 Version 0.2.1 Nov 14 1998