1 Version 1.1pre7 April 22 2013
3 * Fixed large latencies on Windows.
5 * Renamed the tincctl tool to tinc.
7 * Simplified changing the configuration using the tinc tool.
9 * Added a full description of the ExperimentalProtocol to the manual.
11 * Drop packets forwarded via TCP if they are too big (CVE-2013-1428).
13 Thanks to Martin Schobert for auditing tinc and reporting the vulnerability.
15 Version 1.1pre6 February 20 2013
17 * Fixed tincd exitting immediately on Windows.
19 * Detect PMTU increases.
21 * Fixed crashes when using a SOCKS5 proxy.
23 * Fixed control connection when using a proxy.
25 Version 1.1pre5 January 20 2013
27 * Fixed long delays and possible hangs on Windows.
29 * Fixed support for the tunemu device on iOS, the UML and VDE devices.
31 * Small improvements to the documentation and error messages.
33 * Fixed broadcast packets not reaching the whole VPN.
35 * Tincctl now connects via a UNIX socket to the tincd on platforms that
38 * The PriorityInheritance option now also works in switch mode.
40 Version 1.1pre4 December 5 2012
42 * Added the "AutoConnect" option which will let tinc automatically select
43 which nodes to connect to.
45 * Improved performance of VLAN-tagged IP traffic inside the VPN.
47 * Ensured LocalDiscovery works with multiple BindToAddress statements and/or
50 * Dropped dependency on libevent.
52 * Fixed Windows version not reading packets from the TAP adapter.
54 Version 1.1pre3 October 14 2012
56 * New experimental protocol:
57 * Uses 521 bit ECDSA keys for authentication.
58 * Uses AES-256-CTR and HMAC-SHA256.
59 * Always provides perfect forward secrecy.
60 * Used for both meta-connections and VPN packets.
61 * VPN packets are encrypted end-to-end.
63 * Many improvements to tincctl:
64 * "config" command shows/adds/changes configuration variables.
65 * "export" and "import" commands help exchange configuration files.
66 * "init" command sets up initial configuration files.
67 * "info" command shows details about a node, subnet or address.
68 * "log" command shows live log messages.
69 * Without a command it acts as a shell, with history and TAB completion.
70 * Improved starting/stopping tincd.
71 * Improved graph output.
73 * When trying to directly send UDP packets to a node for which multiple
74 addresses are known, all of them are tried.
76 * Many small fixes, code cleanups and documentation updates.
78 Version 1.1pre2 July 17 2011
80 * .cookie files are renamed to .pid files, which are compatible with 1.0.x.
82 * Experimental protocol enhancements that can be enabled with the option
83 ExperimentalProtocol = yes:
85 * Ephemeral ECDH key exchange will be used for both the meta protocol and
87 * Key exchanges are signed with ECDSA.
88 * ECDSA public keys are automatically exchanged after RSA authentication if
89 nodes do not know each other's ECDSA public key yet.
91 Version 1.1pre1 June 25 2011
93 * Control interface allows control of a running tinc daemon. Used by:
94 * tincctl, a commandline utility
95 * tinc-gui, a preliminary GUI implemented in Python/wxWidgets
97 * Code cleanups and reorganization.
99 * Repleacable cryptography backend, currently supports OpenSSL and libgcrypt.
101 * Use libevent to handle I/O events and timeouts.
103 * Use splay trees instead of AVL trees to manage internal datastructures.
105 Thanks to Scott Lamb and Sven-Haegar Koch for their contributions to this
108 Version 1.0.19 June 25 2012
110 * Allow :: notation in IPv6 Subnets.
112 * Add support for systemd style socket activation.
114 * Allow environment variables to be used for the Name option.
116 * Add basic support for SOCKS proxies, HTTP proxies, and proxying through an
119 Version 1.0.18 March 25 2012
121 * Fixed IPv6 in switch mode by turning off DecrementTTL by default.
123 * Allow a port number to be specified in BindToAddress, which also allows tinc
124 to listen on multiple ports.
126 * Add support for multicast communication with UML/QEMU/KVM.
128 Version 1.0.17 March 10 2012
130 * The DeviceType option can now be used to select dummy, raw socket, UML and
131 VDE devices without needing to recompile tinc.
133 * Allow multiple BindToAddress statements.
135 * Decrement TTL value of IPv4 and IPv6 packets.
137 * Add LocalDiscovery option allowing tinc to detect peers that are behind the
140 * Accept Subnets passed with the -o option when StrictSubnets = yes.
142 * Disabling old RSA keys when generating new ones now also works properly on
145 Version 1.0.16 July 23 2011
147 * Fixed a performance issue with TCP communication under Windows.
149 * Fixed code that, during network outages, would cause tinc to exit when it
150 thought two nodes with identical Names were on the VPN.
152 Version 1.0.15 June 24 2011
154 * Improved logging to file.
156 * Reduced amount of process wakeups on platforms which support pselect().
158 * Fixed ProcessPriority option under Windows.
160 Thanks to Loïc Grenié for his contribution to this version of tinc.
162 Version 1.0.14 May 8 2011
164 * Fixed reading configuration files that do not end with a newline. Again.
166 * Allow arbitrary configuration options being specified on the command line.
168 * Allow all options in both tinc.conf and the local host config file.
170 * Configurable replay window, UDP send and receive buffers for performance tuning.
172 * Try harder to get UDP communication back after falling back to TCP.
174 * Initial support for attaching tinc to a VDE switch.
176 * DragonFly BSD support.
178 * Allow linking with OpenSSL 1.0.0.
180 Thanks to Brandon Black, Julien Muchembled, Michael Tokarev, Rumko and Timothy
181 Redaelli for their contributions to this version of tinc.
183 Version 1.0.13 Apr 11 2010
185 * Allow building tinc without LZO and/or Zlib.
187 * Clamp MSS of TCP packets in both directions.
189 * Experimental StrictSubnets, Forwarding and DirectOnly options,
190 giving more control over information and packets received from/sent to other
193 * Ensure tinc never sends symbolic names for ports over the wire.
195 Version 1.0.12 Feb 3 2010
197 * Really allow fast roaming of hosts to other nodes in a switched VPN.
199 * Fixes missing or incorrect environment variables when calling host-up/down
200 and subnet-up/down scripts in some cases.
202 * Allow port to be specified in Address statements.
204 * Clamp MSS of TCP packets to the discovered path MTU.
206 * Let two nodes behind NAT learn each others current UDP address and port via
207 a third node, potentially allowing direct communications in a similar way to
210 Version 1.0.11 Nov 1 2009
212 * Fixed potential crash when the HUP signal is sent.
214 * Fixes handling of weighted Subnets in switch and hub modes, preventing
215 unnecessary broadcasts.
217 * Works around a MinGW bug that caused packets to Windows nodes to always be
220 * Improvements to the PMTU discovery code, especially on Windows.
222 * Use UDP again in certain cases where 1.0.10 was too conservative and fell
223 back to TCP unnecessarily.
225 * Allow fast roaming of hosts to other nodes in a switched VPN.
227 Version 1.0.10 Oct 18 2009
229 * Fixed potential crashes during shutdown and (in rare conditions) when other
230 nodes disconnected from the VPN.
232 * Improved NAT handling: tinc now copes with mangled port numbers, and will
233 automatically fall back to TCP if direct UDP connection between nodes is not
234 possible. The TCPOnly option should not have to be used anymore.
236 * Allow configuration files with CRLF line endings to be read on UNIX.
238 * Disable old RSA keys when generating new ones, and raise the default size of
239 new RSA keys to 2048 bits.
241 * Many fixes in the path MTU discovery code, especially when Compression is
244 * Tinc can now drop privileges and/or chroot itself.
246 * The TunnelServer code now just ignores information from clients instead of
249 * Improved performance on Windows by using the new ProcessPriority option and
250 by making the handling of packets received from the TAP-Win32 adapter more
253 * Code cleanups: tinc now follows the C99 standard, copyright headers have
254 been updated to include patch authors, checkpoint tracing and localisation
255 features have been removed.
257 * Support for (jailbroken) iPhone and iPod Touch has been added.
259 Thanks to Florian Forster, Grzegorz Dymarek and especially Michael Tokarev for
260 their contributions to this version of tinc.
262 Version 1.0.9 Dec 26 2008
264 * Fixed tinc as a service under Windows 2003.
266 * Fixed reading configuration files that do not end with a newline.
268 * Fixed crashes in situations where hostnames could not be resolved or hosts
269 would disconnect at the same time as session keys were exchanged.
271 * Improved default settings of tun and tap devices on BSD platforms.
273 * Make IPv6 sockets bind only to IPv6 on Linux.
275 * Enable path MTU discovery by default.
277 * Fixed a memory leak that occured when connections were closed.
279 Thanks to Max Rijevski for his contributions to this version of tinc.
281 Version 1.0.8 May 16 2007
283 * Fixed some memory and resource leaks.
285 * Made network sockets non-blocking under Windows.
287 Thanks to Scott Lamb and "dnk" for their contributions to this version of tinc.
289 Version 1.0.7 Jan 5 2007
291 * Fixed a bug that caused slow network speeds on Windows.
293 * Fixed a bug that caused tinc unable to write packets to the tun device on
296 Version 1.0.6 Dec 18 2006
298 * More flexible detection of the LZO libraries when compiling.
300 * Fixed a bug where broadcasts in switch and hub modes sometimes would not
301 work anymore when part of the VPN had become disconnected from the rest.
303 Version 1.0.5 Nov 14 2006
305 * Lots of small fixes.
307 * Broadcast packets no longer grow in size with each hop. This should
308 fix switch mode (again).
310 * Generic host-up and host-down scripts.
312 * Optionally dump graph in graphviz format to a file or a script.
314 * Support LZO 2.0 and later.
316 Thanks to Scott Lamb for his contributions to this version of tinc.
318 Version 1.0.4 May 4 2005
320 * Fix switch and hub modes.
322 * Optionally start scripts when a Subnet becomes (un)reachable.
324 Version 1.0.3 Nov 11 2004
326 * Show error message when failing to write a PID file.
328 * Ignore spaces at end of lines in config files.
330 * Fix handling of late packets.
332 * Unify BSD tun/tap device handling. This allows IPv6 on tun devices and
333 anything on tap devices as long as the underlying OS supports it.
335 * Handle IPv6 on Solaris tun devices.
337 * Allow tinc to work properly under Windows XP SP2.
339 * Allow VLAN tagged Ethernet frames in switch and hub mode.
341 * Experimental PMTUDiscovery, TunnelServer and BlockingTCP options.
343 Version 1.0.2 Nov 8 2003
345 * Fix address and hostname resolving under Windows.
347 * Remove warnings about non-existing scripts and unsupported address families.
349 * Use the event logger under Windows.
351 * Fix quoting of filenames and command line arguments under Windows.
353 * Strict checks for length incoming network packets and return values of
354 cryptographic functions,
356 * Fix a bug in metadata handling that made the tinc daemon abort.
358 Version 1.0.1 Aug 14 2003
360 * Allow empty lines in config files.
362 * Fix handling of spaces and backslashes in filenames under native Windows.
364 * Allow scripts to be executed under native Windows.
366 * Update documentation, make it less Linux specific.
368 Version 1.0 Aug 4 2003
370 * Lots of small bugfixes and code cleanups.
372 * Throughput doubled and latency reduced.
374 * Added support for LZO compression.
376 * No need to set MAC address or disable ARP anymore.
378 * Added support for Windows 2000 and XP, both natively and in a Cygwin
381 Version 1.0pre8 Sep 16 2002
383 * More fixes for subnets with prefixlength undivisible by 8.
385 * Added support for NetBSD and MacOS/X.
387 * Switched from undirected graphs to directed graphs to avoid certain race
388 conditions and improve scalability.
390 * Generalized broadcasting and forwarding of protocol messages.
392 * Cleanup of source code.
394 Version 1.0pre7 Apr 7 2002
396 * Don't do blocking read()s when getting a signal.
398 * Remove RSA key checking code, since it sometimes thinks perfectly good RSA
401 * Fix handling of subnets when prefixlength isn't divisible by 8.
403 Version 1.0pre6 Mar 27 2002
405 * Improvement of redundant links:
406 * Non-blocking connects.
407 * Protocol broadcast messages can no longer go into an infinite loop.
408 * Graph algorithm updated to look harder for direct connections.
410 * Good support for routing IPv6 packets over the VPN. Works on Linux,
411 FreeBSD, possibly OpenBSD but not on Solaris.
413 * Support for tunnels over IPv6 networks. Works on all supported
416 * Optional compression of UDP connections using zlib.
418 * Optionally let UDP connections inherit TOS field of tunneled packets.
420 * Optionally start scripts when certain hosts become (un)reachable.
422 Version 1.0pre5 Feb 9 2002
424 * Security enhancements:
425 * Added sequence number and optional message authentication code to
427 * Configurable encryption cipher and digest algorithms.
429 * More robust handling of dis- and reconnects.
431 * Added a "switch" and a "hub" mode to allow bridging setups.
433 * Preliminary support for routing of IPv6 packets.
435 * Supports Linux, FreeBSD, OpenBSD and Solaris.
437 Version 1.0pre4 Jan 17 2001
439 * Updated documentation; the documentation now reflects the
440 configuration as it is.
442 * Some internal changes to make tinc scale better for large
443 networks, such as using AVL trees instead of linked lists for the
446 * RSA keys can be stored in separate files if needed. See the
447 documentation for more information.
449 * Tinc has now been reported to run on Linux PowerPC and FreeBSD x86.
451 Version 1.0pre3 Oct 31 2000
453 * The protocol has been redesigned, and although some details are
454 still under discussion, this is secure. Care has been taken to
455 resist most, if not all, attacks.
457 * Unfortunately this protocol is not compatible with earlier versions,
458 nor are earlier versions compatible with this version. Because the
459 older protocol has huge security flaws, we feel that not
460 implementing backwards compatibility is justified.
462 * Some data about the protocol:
463 * It uses public/private RSA keys for authentication (this is the
464 actual fix for the security hole).
465 * All cryptographic functions have been taken out of tinc, instead
466 it uses the OpenSSL library functions.
467 * Offers support for multiple subnets per tinc daemon.
469 * New is also the support for the universal tun/tap device. This
470 means better portability to FreeBSD and Solaris.
472 * Tinc is tested to compile on Solaris, Linux x86, Linux alpha.
474 * Tinc now uses the OpenSSL library for cryptographic operations.
475 More information on getting and installing OpenSSL is in the manual.
476 This also means that the GMP library is no longer required.
478 * Further, thanks to Enrique Zanardi, we have Spanish messages; Matias
479 Carrasco provided us with a Spanish translation of the manual.
481 Version 1.0pre2 May 31 2000
483 * This version has been internationalized; and a Dutch translation has
486 * Two configuration variables have been added:
487 * VpnMask - the IP network mask for the entire VPN, not just our
488 subnet (as given by MyVirtualIP). The Redhat and Debian packages
489 use this variable in their system startup scripts, but it is
491 * Hostnames - if set to `yes', look up the names of IP addresses
492 trying to connect to us. Default set to `no', to prevent lockups
495 * The system startup scripts for Debian and Redhat use
496 /etc/tinc/nets.boot to find out which networks need to be started
499 * Fixes to prevent denial of service attacks by sending random data
500 after connecting (and even when the connection has been established),
501 either random garbage or just nonsensical protocol fields.
503 * Tinc will retry to connect upon startup, does not quit if it doesn't
506 * Hosts that are disconnected implicitly if we lose a connection get
507 deleted from the internal list, to prevent hogging eachother with
508 add and delete requests when the connection is restored.
510 Version 1.0pre1 May 12 2000
514 * Various other bugfixes
516 * Documentation updates
518 Version 0.3.3 Feb 9 2000
520 * Fixed bug that made tinc stop working with latest kernels
524 Version 0.3.2 Nov 12 1999
526 * No more `Invalid filedescriptor' when working with multiple
529 * Forward unknown packets to uplink.
531 Version 0.3.1 Oct 20 1999
533 * Fixed a bug where tinc would exit without a trace.
535 Version 0.3 Aug 20 1999
537 * Pings now work immediately.
539 * All packet sizes get transmitted correctly.
541 Version 0.2.26 Aug 15 1999
543 * Fixed some remaining bugs.
545 * --sysconfdir works with configure.
547 * Last version before 0.3.
549 Version 0.2.25 Aug 8 1999
551 * Improved stability, going towards 0.3 now.
553 Version 0.2.24 Aug 7 1999
555 * Added key aging, there's a new config variable, KeyExpire.
557 * Updated man and info pages.
559 Version 0.2.23 Aug 5 1999
561 * All known bugs fixed, this is a candidate for 0.3.
563 Version 0.2.22 Apr 11 1999
565 * Multiconnection thing is now working nearly perfect :)
567 Version 0.2.21 Apr 10 1999
569 * You shouldn't notice a thing, but a lot has changed wrt key
570 management - except that it refuses to talk to versions < 0.2.20
572 Version 0.2.19 Apr 3 1999
574 * Don't install a libcipher.so.
576 Version 0.2.18 Apr 3 1999
578 * Blowfish library dynamically loaded upon execution.
580 * Included Eric Young's IDEA library.
582 Version 0.2.17 Apr 1 1999
584 * Tincd now re-executes itself in case of a segmentation fault.
586 Version 0.2.16 Apr 1 1999
588 * Wrote tincd.conf(5) man page, which still needs a lot of work.
590 * Config file now accepts and tolerates spaces, and any integer base
591 for integer variables, and better error reporting. See
592 doc/tincd.conf.sample for an example.
594 Version 0.2.15 Mar 29 1999
598 Version 0.2.14 Feb 10 1999
600 * Added --timeout flag and PingTimeout configuration.
601 * Did some first syslog cleanup work.
603 Version 0.2.13 Jan 23 1999
607 Version 0.2.12 Jan 23 1999
609 * Fixed nauseating bug so that it would crash whenever a connection
612 Version 0.2.11 Jan 22 1999
614 * Framework for multiple connections has been done.
616 * Simple manpage for tincd.
618 Version 0.2.10 Jan 18 1999
620 * Passphrase support added.
622 Version 0.2.9 Jan 13 1999
626 Version 0.2.8 Jan 11 1999
628 * A reworked protocol version.
630 * A ping/pong system.
632 * More reliable networking code.
634 * Automatic reconnection.
636 * Still does not work with more than one connection :)
638 * Strips MAC addresses before sending, so there's less overhead, and
641 Version 0.2.7 Jan 3 1999
643 * Several updates to make extending more easy.
645 Version 0.2.6 Dec 20 1998
647 * Point-to-Point connections have been established, including
648 Blowfish encryption and a secret key-exchange.
650 Version 0.2.5 Dec 16 1998
652 * Project renamed to tinc, in honour of TINC.
654 Version 0.2.4 Dec 16 1998
656 * Now it really does ;)
658 Version 0.2.3 Nov 24 1998
660 * It sort of works now.
662 Version 0.2.2 Nov 20 1998
666 Version 0.2.1 Nov 14 1998