1 Version 1.1pre8 August 13 2013
3 * ExperimentalProtocol is now enabled by default.
5 * Added an invitation protocol that makes it easy to invite new nodes.
7 * Added the LocalDiscoveryAddress option to change the broadcast address used
10 * Limit the rate of incoming meta-connections.
12 * Many small bug fixes and code cleanups.
14 Thanks to Etienne Dechamps and Sven-Haegar Koch for their contributions to this
17 Version 1.1pre7 April 22 2013
19 * Fixed large latencies on Windows.
21 * Renamed the tincctl tool to tinc.
23 * Simplified changing the configuration using the tinc tool.
25 * Added a full description of the ExperimentalProtocol to the manual.
27 * Drop packets forwarded via TCP if they are too big (CVE-2013-1428).
29 Thanks to Martin Schobert for auditing tinc and reporting the vulnerability.
31 Version 1.1pre6 February 20 2013
33 * Fixed tincd exitting immediately on Windows.
35 * Detect PMTU increases.
37 * Fixed crashes when using a SOCKS5 proxy.
39 * Fixed control connection when using a proxy.
41 Version 1.1pre5 January 20 2013
43 * Fixed long delays and possible hangs on Windows.
45 * Fixed support for the tunemu device on iOS, the UML and VDE devices.
47 * Small improvements to the documentation and error messages.
49 * Fixed broadcast packets not reaching the whole VPN.
51 * Tincctl now connects via a UNIX socket to the tincd on platforms that
54 * The PriorityInheritance option now also works in switch mode.
56 Version 1.1pre4 December 5 2012
58 * Added the "AutoConnect" option which will let tinc automatically select
59 which nodes to connect to.
61 * Improved performance of VLAN-tagged IP traffic inside the VPN.
63 * Ensured LocalDiscovery works with multiple BindToAddress statements and/or
66 * Dropped dependency on libevent.
68 * Fixed Windows version not reading packets from the TAP adapter.
70 Version 1.1pre3 October 14 2012
72 * New experimental protocol:
73 * Uses 521 bit ECDSA keys for authentication.
74 * Uses AES-256-CTR and HMAC-SHA256.
75 * Always provides perfect forward secrecy.
76 * Used for both meta-connections and VPN packets.
77 * VPN packets are encrypted end-to-end.
79 * Many improvements to tincctl:
80 * "config" command shows/adds/changes configuration variables.
81 * "export" and "import" commands help exchange configuration files.
82 * "init" command sets up initial configuration files.
83 * "info" command shows details about a node, subnet or address.
84 * "log" command shows live log messages.
85 * Without a command it acts as a shell, with history and TAB completion.
86 * Improved starting/stopping tincd.
87 * Improved graph output.
89 * When trying to directly send UDP packets to a node for which multiple
90 addresses are known, all of them are tried.
92 * Many small fixes, code cleanups and documentation updates.
94 Version 1.1pre2 July 17 2011
96 * .cookie files are renamed to .pid files, which are compatible with 1.0.x.
98 * Experimental protocol enhancements that can be enabled with the option
99 ExperimentalProtocol = yes:
101 * Ephemeral ECDH key exchange will be used for both the meta protocol and
103 * Key exchanges are signed with ECDSA.
104 * ECDSA public keys are automatically exchanged after RSA authentication if
105 nodes do not know each other's ECDSA public key yet.
107 Version 1.1pre1 June 25 2011
109 * Control interface allows control of a running tinc daemon. Used by:
110 * tincctl, a commandline utility
111 * tinc-gui, a preliminary GUI implemented in Python/wxWidgets
113 * Code cleanups and reorganization.
115 * Repleacable cryptography backend, currently supports OpenSSL and libgcrypt.
117 * Use libevent to handle I/O events and timeouts.
119 * Use splay trees instead of AVL trees to manage internal datastructures.
121 Thanks to Scott Lamb and Sven-Haegar Koch for their contributions to this
124 Version 1.0.22 August 13 2013
126 * Fixed the combination of Mode = router and DeviceType = tap.
128 * The $NAME variable is now set in subnet-up/down scripts.
130 * Tinc now gives an error when unknown options are given on the command line.
132 * Tinc now correctly handles a space between a short command line option and
133 an optional argument.
135 Thanks to Etienne Dechamps for his contribution to this version of tinc.
137 Version 1.0.21 April 22 2013
139 * Drop packets forwarded via TCP if they are too big (CVE-2013-1428).
141 Thanks to Martin Schobert for auditing tinc and reporting this vulnerability.
143 Version 1.0.20 March 03 2013
145 * Use /dev/tap0 by default on FreeBSD and NetBSD when using switch mode.
147 * Minor improvements and clarifications in the documentation.
149 * Allow tinc to be cross-compiled with Android's NDK.
151 * The discovered PMTU is now also applied to VLAN tagged traffic.
153 * The LocalDiscovery option now makes use of all addresses tinc is bound to.
155 * Fixed support for tunemu on iOS devices.
157 * The PriorityInheritance option now also works with switch mode.
159 * Fixed tinc crashing when using a SOCKS5 proxy.
161 Thanks to Mesar Hameed, Vilbrekin and Martin Schürrer for their contributions
162 to this version of tinc.
164 Version 1.0.19 June 25 2012
166 * Allow :: notation in IPv6 Subnets.
168 * Add support for systemd style socket activation.
170 * Allow environment variables to be used for the Name option.
172 * Add basic support for SOCKS proxies, HTTP proxies, and proxying through an
175 Version 1.0.18 March 25 2012
177 * Fixed IPv6 in switch mode by turning off DecrementTTL by default.
179 * Allow a port number to be specified in BindToAddress, which also allows tinc
180 to listen on multiple ports.
182 * Add support for multicast communication with UML/QEMU/KVM.
184 Version 1.0.17 March 10 2012
186 * The DeviceType option can now be used to select dummy, raw socket, UML and
187 VDE devices without needing to recompile tinc.
189 * Allow multiple BindToAddress statements.
191 * Decrement TTL value of IPv4 and IPv6 packets.
193 * Add LocalDiscovery option allowing tinc to detect peers that are behind the
196 * Accept Subnets passed with the -o option when StrictSubnets = yes.
198 * Disabling old RSA keys when generating new ones now also works properly on
201 Version 1.0.16 July 23 2011
203 * Fixed a performance issue with TCP communication under Windows.
205 * Fixed code that, during network outages, would cause tinc to exit when it
206 thought two nodes with identical Names were on the VPN.
208 Version 1.0.15 June 24 2011
210 * Improved logging to file.
212 * Reduced amount of process wakeups on platforms which support pselect().
214 * Fixed ProcessPriority option under Windows.
216 Thanks to Loïc Grenié for his contribution to this version of tinc.
218 Version 1.0.14 May 8 2011
220 * Fixed reading configuration files that do not end with a newline. Again.
222 * Allow arbitrary configuration options being specified on the command line.
224 * Allow all options in both tinc.conf and the local host config file.
226 * Configurable replay window, UDP send and receive buffers for performance tuning.
228 * Try harder to get UDP communication back after falling back to TCP.
230 * Initial support for attaching tinc to a VDE switch.
232 * DragonFly BSD support.
234 * Allow linking with OpenSSL 1.0.0.
236 Thanks to Brandon Black, Julien Muchembled, Michael Tokarev, Rumko and Timothy
237 Redaelli for their contributions to this version of tinc.
239 Version 1.0.13 Apr 11 2010
241 * Allow building tinc without LZO and/or Zlib.
243 * Clamp MSS of TCP packets in both directions.
245 * Experimental StrictSubnets, Forwarding and DirectOnly options,
246 giving more control over information and packets received from/sent to other
249 * Ensure tinc never sends symbolic names for ports over the wire.
251 Version 1.0.12 Feb 3 2010
253 * Really allow fast roaming of hosts to other nodes in a switched VPN.
255 * Fixes missing or incorrect environment variables when calling host-up/down
256 and subnet-up/down scripts in some cases.
258 * Allow port to be specified in Address statements.
260 * Clamp MSS of TCP packets to the discovered path MTU.
262 * Let two nodes behind NAT learn each others current UDP address and port via
263 a third node, potentially allowing direct communications in a similar way to
266 Version 1.0.11 Nov 1 2009
268 * Fixed potential crash when the HUP signal is sent.
270 * Fixes handling of weighted Subnets in switch and hub modes, preventing
271 unnecessary broadcasts.
273 * Works around a MinGW bug that caused packets to Windows nodes to always be
276 * Improvements to the PMTU discovery code, especially on Windows.
278 * Use UDP again in certain cases where 1.0.10 was too conservative and fell
279 back to TCP unnecessarily.
281 * Allow fast roaming of hosts to other nodes in a switched VPN.
283 Version 1.0.10 Oct 18 2009
285 * Fixed potential crashes during shutdown and (in rare conditions) when other
286 nodes disconnected from the VPN.
288 * Improved NAT handling: tinc now copes with mangled port numbers, and will
289 automatically fall back to TCP if direct UDP connection between nodes is not
290 possible. The TCPOnly option should not have to be used anymore.
292 * Allow configuration files with CRLF line endings to be read on UNIX.
294 * Disable old RSA keys when generating new ones, and raise the default size of
295 new RSA keys to 2048 bits.
297 * Many fixes in the path MTU discovery code, especially when Compression is
300 * Tinc can now drop privileges and/or chroot itself.
302 * The TunnelServer code now just ignores information from clients instead of
305 * Improved performance on Windows by using the new ProcessPriority option and
306 by making the handling of packets received from the TAP-Win32 adapter more
309 * Code cleanups: tinc now follows the C99 standard, copyright headers have
310 been updated to include patch authors, checkpoint tracing and localisation
311 features have been removed.
313 * Support for (jailbroken) iPhone and iPod Touch has been added.
315 Thanks to Florian Forster, Grzegorz Dymarek and especially Michael Tokarev for
316 their contributions to this version of tinc.
318 Version 1.0.9 Dec 26 2008
320 * Fixed tinc as a service under Windows 2003.
322 * Fixed reading configuration files that do not end with a newline.
324 * Fixed crashes in situations where hostnames could not be resolved or hosts
325 would disconnect at the same time as session keys were exchanged.
327 * Improved default settings of tun and tap devices on BSD platforms.
329 * Make IPv6 sockets bind only to IPv6 on Linux.
331 * Enable path MTU discovery by default.
333 * Fixed a memory leak that occured when connections were closed.
335 Thanks to Max Rijevski for his contributions to this version of tinc.
337 Version 1.0.8 May 16 2007
339 * Fixed some memory and resource leaks.
341 * Made network sockets non-blocking under Windows.
343 Thanks to Scott Lamb and "dnk" for their contributions to this version of tinc.
345 Version 1.0.7 Jan 5 2007
347 * Fixed a bug that caused slow network speeds on Windows.
349 * Fixed a bug that caused tinc unable to write packets to the tun device on
352 Version 1.0.6 Dec 18 2006
354 * More flexible detection of the LZO libraries when compiling.
356 * Fixed a bug where broadcasts in switch and hub modes sometimes would not
357 work anymore when part of the VPN had become disconnected from the rest.
359 Version 1.0.5 Nov 14 2006
361 * Lots of small fixes.
363 * Broadcast packets no longer grow in size with each hop. This should
364 fix switch mode (again).
366 * Generic host-up and host-down scripts.
368 * Optionally dump graph in graphviz format to a file or a script.
370 * Support LZO 2.0 and later.
372 Thanks to Scott Lamb for his contributions to this version of tinc.
374 Version 1.0.4 May 4 2005
376 * Fix switch and hub modes.
378 * Optionally start scripts when a Subnet becomes (un)reachable.
380 Version 1.0.3 Nov 11 2004
382 * Show error message when failing to write a PID file.
384 * Ignore spaces at end of lines in config files.
386 * Fix handling of late packets.
388 * Unify BSD tun/tap device handling. This allows IPv6 on tun devices and
389 anything on tap devices as long as the underlying OS supports it.
391 * Handle IPv6 on Solaris tun devices.
393 * Allow tinc to work properly under Windows XP SP2.
395 * Allow VLAN tagged Ethernet frames in switch and hub mode.
397 * Experimental PMTUDiscovery, TunnelServer and BlockingTCP options.
399 Version 1.0.2 Nov 8 2003
401 * Fix address and hostname resolving under Windows.
403 * Remove warnings about non-existing scripts and unsupported address families.
405 * Use the event logger under Windows.
407 * Fix quoting of filenames and command line arguments under Windows.
409 * Strict checks for length incoming network packets and return values of
410 cryptographic functions,
412 * Fix a bug in metadata handling that made the tinc daemon abort.
414 Version 1.0.1 Aug 14 2003
416 * Allow empty lines in config files.
418 * Fix handling of spaces and backslashes in filenames under native Windows.
420 * Allow scripts to be executed under native Windows.
422 * Update documentation, make it less Linux specific.
424 Version 1.0 Aug 4 2003
426 * Lots of small bugfixes and code cleanups.
428 * Throughput doubled and latency reduced.
430 * Added support for LZO compression.
432 * No need to set MAC address or disable ARP anymore.
434 * Added support for Windows 2000 and XP, both natively and in a Cygwin
437 Version 1.0pre8 Sep 16 2002
439 * More fixes for subnets with prefixlength undivisible by 8.
441 * Added support for NetBSD and MacOS/X.
443 * Switched from undirected graphs to directed graphs to avoid certain race
444 conditions and improve scalability.
446 * Generalized broadcasting and forwarding of protocol messages.
448 * Cleanup of source code.
450 Version 1.0pre7 Apr 7 2002
452 * Don't do blocking read()s when getting a signal.
454 * Remove RSA key checking code, since it sometimes thinks perfectly good RSA
457 * Fix handling of subnets when prefixlength isn't divisible by 8.
459 Version 1.0pre6 Mar 27 2002
461 * Improvement of redundant links:
462 * Non-blocking connects.
463 * Protocol broadcast messages can no longer go into an infinite loop.
464 * Graph algorithm updated to look harder for direct connections.
466 * Good support for routing IPv6 packets over the VPN. Works on Linux,
467 FreeBSD, possibly OpenBSD but not on Solaris.
469 * Support for tunnels over IPv6 networks. Works on all supported
472 * Optional compression of UDP connections using zlib.
474 * Optionally let UDP connections inherit TOS field of tunneled packets.
476 * Optionally start scripts when certain hosts become (un)reachable.
478 Version 1.0pre5 Feb 9 2002
480 * Security enhancements:
481 * Added sequence number and optional message authentication code to
483 * Configurable encryption cipher and digest algorithms.
485 * More robust handling of dis- and reconnects.
487 * Added a "switch" and a "hub" mode to allow bridging setups.
489 * Preliminary support for routing of IPv6 packets.
491 * Supports Linux, FreeBSD, OpenBSD and Solaris.
493 Version 1.0pre4 Jan 17 2001
495 * Updated documentation; the documentation now reflects the
496 configuration as it is.
498 * Some internal changes to make tinc scale better for large
499 networks, such as using AVL trees instead of linked lists for the
502 * RSA keys can be stored in separate files if needed. See the
503 documentation for more information.
505 * Tinc has now been reported to run on Linux PowerPC and FreeBSD x86.
507 Version 1.0pre3 Oct 31 2000
509 * The protocol has been redesigned, and although some details are
510 still under discussion, this is secure. Care has been taken to
511 resist most, if not all, attacks.
513 * Unfortunately this protocol is not compatible with earlier versions,
514 nor are earlier versions compatible with this version. Because the
515 older protocol has huge security flaws, we feel that not
516 implementing backwards compatibility is justified.
518 * Some data about the protocol:
519 * It uses public/private RSA keys for authentication (this is the
520 actual fix for the security hole).
521 * All cryptographic functions have been taken out of tinc, instead
522 it uses the OpenSSL library functions.
523 * Offers support for multiple subnets per tinc daemon.
525 * New is also the support for the universal tun/tap device. This
526 means better portability to FreeBSD and Solaris.
528 * Tinc is tested to compile on Solaris, Linux x86, Linux alpha.
530 * Tinc now uses the OpenSSL library for cryptographic operations.
531 More information on getting and installing OpenSSL is in the manual.
532 This also means that the GMP library is no longer required.
534 * Further, thanks to Enrique Zanardi, we have Spanish messages; Matias
535 Carrasco provided us with a Spanish translation of the manual.
537 Version 1.0pre2 May 31 2000
539 * This version has been internationalized; and a Dutch translation has
542 * Two configuration variables have been added:
543 * VpnMask - the IP network mask for the entire VPN, not just our
544 subnet (as given by MyVirtualIP). The Redhat and Debian packages
545 use this variable in their system startup scripts, but it is
547 * Hostnames - if set to `yes', look up the names of IP addresses
548 trying to connect to us. Default set to `no', to prevent lockups
551 * The system startup scripts for Debian and Redhat use
552 /etc/tinc/nets.boot to find out which networks need to be started
555 * Fixes to prevent denial of service attacks by sending random data
556 after connecting (and even when the connection has been established),
557 either random garbage or just nonsensical protocol fields.
559 * Tinc will retry to connect upon startup, does not quit if it doesn't
562 * Hosts that are disconnected implicitly if we lose a connection get
563 deleted from the internal list, to prevent hogging eachother with
564 add and delete requests when the connection is restored.
566 Version 1.0pre1 May 12 2000
570 * Various other bugfixes
572 * Documentation updates
574 Version 0.3.3 Feb 9 2000
576 * Fixed bug that made tinc stop working with latest kernels
580 Version 0.3.2 Nov 12 1999
582 * No more `Invalid filedescriptor' when working with multiple
585 * Forward unknown packets to uplink.
587 Version 0.3.1 Oct 20 1999
589 * Fixed a bug where tinc would exit without a trace.
591 Version 0.3 Aug 20 1999
593 * Pings now work immediately.
595 * All packet sizes get transmitted correctly.
597 Version 0.2.26 Aug 15 1999
599 * Fixed some remaining bugs.
601 * --sysconfdir works with configure.
603 * Last version before 0.3.
605 Version 0.2.25 Aug 8 1999
607 * Improved stability, going towards 0.3 now.
609 Version 0.2.24 Aug 7 1999
611 * Added key aging, there's a new config variable, KeyExpire.
613 * Updated man and info pages.
615 Version 0.2.23 Aug 5 1999
617 * All known bugs fixed, this is a candidate for 0.3.
619 Version 0.2.22 Apr 11 1999
621 * Multiconnection thing is now working nearly perfect :)
623 Version 0.2.21 Apr 10 1999
625 * You shouldn't notice a thing, but a lot has changed wrt key
626 management - except that it refuses to talk to versions < 0.2.20
628 Version 0.2.19 Apr 3 1999
630 * Don't install a libcipher.so.
632 Version 0.2.18 Apr 3 1999
634 * Blowfish library dynamically loaded upon execution.
636 * Included Eric Young's IDEA library.
638 Version 0.2.17 Apr 1 1999
640 * Tincd now re-executes itself in case of a segmentation fault.
642 Version 0.2.16 Apr 1 1999
644 * Wrote tincd.conf(5) man page, which still needs a lot of work.
646 * Config file now accepts and tolerates spaces, and any integer base
647 for integer variables, and better error reporting. See
648 doc/tincd.conf.sample for an example.
650 Version 0.2.15 Mar 29 1999
654 Version 0.2.14 Feb 10 1999
656 * Added --timeout flag and PingTimeout configuration.
657 * Did some first syslog cleanup work.
659 Version 0.2.13 Jan 23 1999
663 Version 0.2.12 Jan 23 1999
665 * Fixed nauseating bug so that it would crash whenever a connection
668 Version 0.2.11 Jan 22 1999
670 * Framework for multiple connections has been done.
672 * Simple manpage for tincd.
674 Version 0.2.10 Jan 18 1999
676 * Passphrase support added.
678 Version 0.2.9 Jan 13 1999
682 Version 0.2.8 Jan 11 1999
684 * A reworked protocol version.
686 * A ping/pong system.
688 * More reliable networking code.
690 * Automatic reconnection.
692 * Still does not work with more than one connection :)
694 * Strips MAC addresses before sending, so there's less overhead, and
697 Version 0.2.7 Jan 3 1999
699 * Several updates to make extending more easy.
701 Version 0.2.6 Dec 20 1998
703 * Point-to-Point connections have been established, including
704 Blowfish encryption and a secret key-exchange.
706 Version 0.2.5 Dec 16 1998
708 * Project renamed to tinc, in honour of TINC.
710 Version 0.2.4 Dec 16 1998
712 * Now it really does ;)
714 Version 0.2.3 Nov 24 1998
716 * It sort of works now.
718 Version 0.2.2 Nov 20 1998
722 Version 0.2.1 Nov 14 1998