1 Version 1.0.28 April 10 2016
3 * Fix compilation on BSD platforms.
5 * Add systemd service files.
7 Version 1.0.27 April 10 2016
9 * When using Proxy, let the proxy resolve hostnames if tinc can't.
11 * Fixes and improvements of the DecrementTTL option.
13 * Fixed the $NAME variable in subnet-up/down scripts for the local Subnets.
15 * Fixed potentially wrong checksum generation when clamping the MSS.
17 * Properly choose between the system's or our own copy of getopt.
19 * Fixed compiling tinc for Cygwin with MinGW installed.
21 * Added support for OS X utun interfaces.
23 * Documentation updates and minor fixes.
25 Thanks to Vittorio Gambaletta, LunarShaddow, Florian Weik and Nathan Stratton
26 Treadway for their contributions to this version of tinc.
28 Version 1.0.26 July 5 2015
30 * Tinc now forces glibc to reload /etc/resolv.conf for every hostname lookup.
32 * Fixed --logfile without a filename on Windows.
34 * Ensure tinc can be compiled when using musl libc.
36 Thanks to Jo-Philipp Wich for his contribution to this version of tinc.
38 Version 1.0.25 December 22 2014
40 * Documentation updates.
42 * Support linking against -lresolv on Mac OS X.
44 * Fix scripts on Windows when using the ScriptsInterpreter option.
46 * Allow a minimum reconnect timeout to be specified.
48 * Support PriorityInheritance on IPv6 sockets.
50 Thanks to David Pflug, Baptiste Jonglez, Alexis Hildebrandt, Borg, Jochen Voss,
51 Tomislav Čohar and VittGam for their contributions to this version of tinc.
53 Version 1.0.24 May 11 2014
55 * Various compiler hardening flags are enabled by default.
57 * Updated support for Solaris, allowing switch mode on Solaris 11.
59 * Configuration will now also be read from a conf.d directory.
61 * Various updates to the documentation.
63 * Tinc now forces glibc to reload /etc/resolv.conf after it receives SIGALRM.
65 * Fixed a potential routing loop when IndirectData or TCPOnly is used and
66 broadcast packets are being sent.
68 * Improved security with constant time memcmp and stricter use of OpenSSL's
71 * Fixed all issues found by Coverity.
73 Thanks to Florent Clairambault, Vilbrekin, luckyhacky, Armin Fisslthaler, Loïc
74 Dachary and Steffan Karger for their contributions to this version of tinc.
76 Version 1.0.23 October 19 2013
78 * Start authentication immediately on outgoing connections (useful for sslh).
80 * Fixed segfault when Name = $HOST but $HOST is not set.
82 * Updated the build system and the documentation.
84 * Clean up child processes left over from Proxy = exec.
86 Version 1.0.22 August 13 2013
88 * Fixed the combination of Mode = router and DeviceType = tap.
90 * The $NAME variable is now set in subnet-up/down scripts.
92 * Tinc now gives an error when unknown options are given on the command line.
94 * Tinc now correctly handles a space between a short command line option and
97 Thanks to Etienne Dechamps for his contribution to this version of tinc.
99 Version 1.0.21 April 22 2013
101 * Drop packets forwarded via TCP if they are too big (CVE-2013-1428).
103 Thanks to Martin Schobert for auditing tinc and reporting this vulnerability.
105 Version 1.0.20 March 03 2013
107 * Use /dev/tap0 by default on FreeBSD and NetBSD when using switch mode.
109 * Minor improvements and clarifications in the documentation.
111 * Allow tinc to be cross-compiled with Android's NDK.
113 * The discovered PMTU is now also applied to VLAN tagged traffic.
115 * The LocalDiscovery option now makes use of all addresses tinc is bound to.
117 * Fixed support for tunemu on iOS devices.
119 * The PriorityInheritance option now also works with switch mode.
121 * Fixed tinc crashing when using a SOCKS5 proxy.
123 Thanks to Mesar Hameed, Vilbrekin and Martin Schürrer for their contributions
124 to this version of tinc.
126 Version 1.0.19 June 25 2012
128 * Allow :: notation in IPv6 Subnets.
130 * Add support for systemd style socket activation.
132 * Allow environment variables to be used for the Name option.
134 * Add basic support for SOCKS proxies, HTTP proxies, and proxying through an
137 Thanks to Anthony G. Basile and Michael Tokarev for their contributions to
138 this version of tinc.
140 Version 1.0.18 March 25 2012
142 * Fixed IPv6 in switch mode by turning off DecrementTTL by default.
144 * Allow a port number to be specified in BindToAddress, which also allows tinc
145 to listen on multiple ports.
147 * Add support for multicast communication with UML/QEMU/KVM.
149 Version 1.0.17 March 10 2012
151 * The DeviceType option can now be used to select dummy, raw socket, UML and
152 VDE devices without needing to recompile tinc.
154 * Allow multiple BindToAddress statements.
156 * Decrement TTL value of IPv4 and IPv6 packets.
158 * Add LocalDiscovery option allowing tinc to detect peers that are behind the
161 * Accept Subnets passed with the -o option when StrictSubnets = yes.
163 * Disabling old RSA keys when generating new ones now also works properly on
166 Thanks to Nick Hibma for his contribution to this version of tinc.
168 Version 1.0.16 July 23 2011
170 * Fixed a performance issue with TCP communication under Windows.
172 * Fixed code that, during network outages, would cause tinc to exit when it
173 thought two nodes with identical Names were on the VPN.
175 Version 1.0.15 June 24 2011
177 * Improved logging to file.
179 * Reduced amount of process wakeups on platforms which support pselect().
181 * Fixed ProcessPriority option under Windows.
183 Version 1.0.14 May 8 2011
185 * Fixed reading configuration files that do not end with a newline. Again.
187 * Allow arbitrary configuration options being specified on the command line.
189 * Allow all options in both tinc.conf and the local host config file.
191 * Configurable replay window, UDP send and receive buffers for performance tuning.
193 * Try harder to get UDP communication back after falling back to TCP.
195 * Initial support for attaching tinc to a VDE switch.
197 * DragonFly BSD support.
199 * Allow linking with OpenSSL 1.0.0.
201 Thanks to Brandon Black, Julien Muchembled, Michael Tokarev, Rumko and Timothy
202 Redaelli for their contributions to this version of tinc.
204 Version 1.0.13 Apr 11 2010
206 * Allow building tinc without LZO and/or Zlib.
208 * Clamp MSS of TCP packets in both directions.
210 * Experimental StrictSubnets, Forwarding and DirectOnly options,
211 giving more control over information and packets received from/sent to other
214 * Ensure tinc never sends symbolic names for ports over the wire.
216 Version 1.0.12 Feb 3 2010
218 * Really allow fast roaming of hosts to other nodes in a switched VPN.
220 * Fixes missing or incorrect environment variables when calling host-up/down
221 and subnet-up/down scripts in some cases.
223 * Allow port to be specified in Address statements.
225 * Clamp MSS of TCP packets to the discovered path MTU.
227 * Let two nodes behind NAT learn each others current UDP address and port via
228 a third node, potentially allowing direct communications in a similar way to
231 Version 1.0.11 Nov 1 2009
233 * Fixed potential crash when the HUP signal is sent.
235 * Fixes handling of weighted Subnets in switch and hub modes, preventing
236 unnecessary broadcasts.
238 * Works around a MinGW bug that caused packets to Windows nodes to always be
241 * Improvements to the PMTU discovery code, especially on Windows.
243 * Use UDP again in certain cases where 1.0.10 was too conservative and fell
244 back to TCP unnecessarily.
246 * Allow fast roaming of hosts to other nodes in a switched VPN.
248 Version 1.0.10 Oct 18 2009
250 * Fixed potential crashes during shutdown and (in rare conditions) when other
251 nodes disconnected from the VPN.
253 * Improved NAT handling: tinc now copes with mangled port numbers, and will
254 automatically fall back to TCP if direct UDP connection between nodes is not
255 possible. The TCPOnly option should not have to be used anymore.
257 * Allow configuration files with CRLF line endings to be read on UNIX.
259 * Disable old RSA keys when generating new ones, and raise the default size of
260 new RSA keys to 2048 bits.
262 * Many fixes in the path MTU discovery code, especially when Compression is
265 * Tinc can now drop privileges and/or chroot itself.
267 * The TunnelServer code now just ignores information from clients instead of
270 * Improved performance on Windows by using the new ProcessPriority option and
271 by making the handling of packets received from the TAP-Win32 adapter more
274 * Code cleanups: tinc now follows the C99 standard, copyright headers have
275 been updated to include patch authors, checkpoint tracing and localisation
276 features have been removed.
278 * Support for (jailbroken) iPhone and iPod Touch has been added.
280 Thanks to Florian Forster, Grzegorz Dymarek and especially Michael Tokarev for
281 their contributions to this version of tinc.
283 Version 1.0.9 Dec 26 2008
285 * Fixed tinc as a service under Windows 2003.
287 * Fixed reading configuration files that do not end with a newline.
289 * Fixed crashes in situations where hostnames could not be resolved or hosts
290 would disconnect at the same time as session keys were exchanged.
292 * Improved default settings of tun and tap devices on BSD platforms.
294 * Make IPv6 sockets bind only to IPv6 on Linux.
296 * Enable path MTU discovery by default.
298 * Fixed a memory leak that occured when connections were closed.
300 Thanks to Max Rijevski for his contributions to this version of tinc.
302 Version 1.0.8 May 16 2007
304 * Fixed some memory and resource leaks.
306 * Made network sockets non-blocking under Windows.
308 Thanks to Scott Lamb and "dnk" for their contributions to this version of tinc.
310 Version 1.0.7 Jan 5 2007
312 * Fixed a bug that caused slow network speeds on Windows.
314 * Fixed a bug that caused tinc unable to write packets to the tun device on
317 Version 1.0.6 Dec 18 2006
319 * More flexible detection of the LZO libraries when compiling.
321 * Fixed a bug where broadcasts in switch and hub modes sometimes would not
322 work anymore when part of the VPN had become disconnected from the rest.
324 version 1.0.5 Nov 14 2006
326 * Lots of small fixes.
328 * Broadcast packets no longer grow in size with each hop. This should
329 fix switch mode (again).
331 * Generic host-up and host-down scripts.
333 * Optionally dump graph in graphviz format to a file or a script.
335 * Support LZO 2.0 and later.
337 Thanks to Scott Lamb for his contributions to this version of tinc.
339 version 1.0.4 May 4 2005
341 * Fix switch and hub modes.
343 * Optionally start scripts when a Subnet becomes (un)reachable.
345 version 1.0.3 Nov 11 2004
347 * Show error message when failing to write a PID file.
349 * Ignore spaces at end of lines in config files.
351 * Fix handling of late packets.
353 * Unify BSD tun/tap device handling. This allows IPv6 on tun devices and
354 anything on tap devices as long as the underlying OS supports it.
356 * Handle IPv6 on Solaris tun devices.
358 * Allow tinc to work properly under Windows XP SP2.
360 * Allow VLAN tagged Ethernet frames in switch and hub mode.
362 * Experimental PMTUDiscovery, TunnelServer and BlockingTCP options.
364 version 1.0.2 Nov 8 2003
366 * Fix address and hostname resolving under Windows.
368 * Remove warnings about non-existing scripts and unsupported address families.
370 * Use the event logger under Windows.
372 * Fix quoting of filenames and command line arguments under Windows.
374 * Strict checks for length incoming network packets and return values of
375 cryptographic functions,
377 * Fix a bug in metadata handling that made the tinc daemon abort.
379 version 1.0.1 Aug 14 2003
381 * Allow empty lines in config files.
383 * Fix handling of spaces and backslashes in filenames under native Windows.
385 * Allow scripts to be executed under native Windows.
387 * Update documentation, make it less Linux specific.
389 version 1.0 Aug 4 2003
391 * Lots of small bugfixes and code cleanups.
393 * Throughput doubled and latency reduced.
395 * Added support for LZO compression.
397 * No need to set MAC address or disable ARP anymore.
399 * Added support for Windows 2000 and XP, both natively and in a Cygwin
402 version 1.0pre8 Sep 16 2002
404 * More fixes for subnets with prefixlength undivisible by 8.
406 * Added support for NetBSD and MacOS/X.
408 * Switched from undirected graphs to directed graphs to avoid certain race
409 conditions and improve scalability.
411 * Generalized broadcasting and forwarding of protocol messages.
413 * Cleanup of source code.
416 version 1.0pre7 Apr 7 2002
418 * Don't do blocking read()s when getting a signal.
420 * Remove RSA key checking code, since it sometimes thinks perfectly good RSA
423 * Fix handling of subnets when prefixlength isn't divisible by 8.
426 version 1.0pre6 Mar 27 2002
428 * Improvement of redundant links:
430 * Non-blocking connects.
432 * Protocol broadcast messages can no longer go into an infinite loop.
434 * Graph algorithm updated to look harder for direct connections.
436 * Good support for routing IPv6 packets over the VPN. Works on Linux,
437 FreeBSD, possibly OpenBSD but not on Solaris.
439 * Support for tunnels over IPv6 networks. Works on all supported
442 * Optional compression of UDP connections using zlib.
444 * Optionally let UDP connections inherit TOS field of tunneled packets.
446 * Optionally start scripts when certain hosts become (un)reachable.
449 version 1.0pre5 Feb 9 2002
451 * Security enhancements:
453 * Added sequence number and optional message authentication code to
456 * Configurable encryption cipher and digest algorithms.
458 * More robust handling of dis- and reconnects.
460 * Added a "switch" and a "hub" mode to allow bridging setups.
462 * Preliminary support for routing of IPv6 packets.
464 * Supports Linux, FreeBSD, OpenBSD and Solaris.
467 It looks like this might be the last release before 1.0.
470 version 1.0pre4 Jan 17 2001
472 * Updated documentation; the documentation now reflects the
473 configuration as it is.
475 * Some internal changes to make tinc scale better for large
476 networks, such as using AVL trees instead of linked lists for the
479 * RSA keys can be stored in separate files if needed. See the
480 documentation for more information.
482 * tinc has now been reported to run on Linux PowerPC and FreeBSD x86.
486 version 1.0pre3 Oct 31 2000
488 * The protocol has been redesigned, and although some details are
489 still under discussion, this is secure. Care has been taken to
490 resist most, if not all, attacks.
492 * Unfortunately this protocol is not compatible with earlier versions,
493 nor are earlier versions compatible with this version. Because the
494 older protocol has huge security flaws, we feel that not
495 implementing backwards compatibility is justified.
497 * Some data about the protocol:
499 * It uses public/private RSA keys for authentication (this is the
500 actual fix for the security hole).
502 * All cryptographic functions have been taken out of tinc, instead
503 it uses the OpenSSL library functions.
505 * Offers support for multiple subnets per tinc daemon.
507 * New is also the support for the universal tun/tap device. This
508 means better portability to FreeBSD and Solaris.
510 * tinc is tested to compile on Solaris, Linux x86, Linux alpha.
512 * tinc now uses the OpenSSL library for cryptographic operations.
513 More information on getting and installing OpenSSL is in the manual.
514 This also means that the GMP library is no longer required.
516 * Further, thanks to Enrique Zanardi, we have Spanish messages; Matias
517 Carrasco provided us with a Spanish translation of the manual.
520 What still needs to be done before 1.0:
522 * Documentation. Especially since the protocol has changed, and a lot
523 of configuration directives have been added.
528 version 1.0pre2 May 31 2000
530 * This version has been internationalized; and a Dutch translation has
533 * Two configuration variables have been added:
534 * VpnMask - the IP network mask for the entire VPN, not just our
535 subnet (as given by MyVirtualIP). The Redhat and Debian packages
536 use this variable in their system startup scripts, but it is
538 * Hostnames - if set to `yes', look up the names of IP addresses
539 trying to connect to us. Default set to `no', to prevent lockups
542 * The system startup scripts for Debian and Redhat use
543 /etc/tinc/nets.boot to find out which networks need to be started
546 * Fixes to prevent denial of service attacks by sending random data
547 after connecting (and even when the connection has been established),
548 either random garbage or just nonsensical protocol fields.
550 * tinc will retry to connect upon startup, does not quit if it doesn't
553 * Hosts that are disconnected implicitly if we lose a connection get
554 deleted from the internal list, to prevent hogging eachother with
555 add and delete requests when the connection is restored.
558 What still needs to be done before 1.0:
561 * Failover ConnectTo lines, try another one if the first doesn't work.
566 version 1.0pre1 May 12 2000
568 * Various other bugfixes
569 * Documentation updates
571 version 0.3.3 Feb 9 2000
572 * Fixed bug that made tinc stop working with latest kernels (Guus
576 version 0.3.2 Nov 12 1999
577 * no more `Invalid filedescriptor' when working with multiple
579 * forward unknown packets to uplink
581 version 0.3.1 Oct 20 1999
582 * fixed a bug where tinc would exit without a trace
584 version 0.3 Aug 20 1999
585 * pings now work immediately
586 * all packet sizes get transmitted correctly
588 version 0.2.26 Aug 15 1999
589 * fixed some remaining bugs
590 * --sysconfdir works with configure
591 * last version before 0.3
593 version 0.2.25 Aug 8 1999
594 * improved stability, going towards 0.3 now.
596 version 0.2.24 Aug 7 1999
597 * added key aging, there's a new config variable, KeyExpire.
598 * updated man and info pages
600 version 0.2.23 Aug 5 1999
601 * all known bugs fixed, this is a candidate for 0.3
603 version 0.2.22 Apr 11 1999
604 * multiconnection thing is now working nearly perfect :)
606 version 0.2.21 Apr 10 1999
607 * You shouldn't notice a thing, but a lot has changed wrt key
608 management - except that it refuses to talk to versions < 0.2.20
612 version 0.2.19 Apr 3 1999
613 * don't install a libcipher.so
615 version 0.2.18 Apr 3 1999
616 * blowfish library dynamically loaded upon execution
617 * included Eric Young's IDEA library
619 version 0.2.17 Apr 1 1999
620 * tincd now re-executes itself in case of a segmentation fault.
622 version 0.2.16 Apr 1 1999
623 * wrote tincd.conf(5) man page, which still needs a lot of work.
624 * config file now accepts and tolerates spaces, and any integer base
625 for integer variables, and better error reporting. See
626 doc/tincd.conf.sample for an example.
628 version 0.2.15 Mar 29 1999
631 version 0.2.14 Feb 10 1999
632 * added --timeout flag and PingTimeout configuration
633 * did some first syslog cleanup work
635 version 0.2.13 Jan 23 1999
638 version 0.2.12 Jan 23 1999
639 * fixed nauseating bug so that it would crash whenever a connection
642 version 0.2.11 Jan 22 1999
643 * framework for multiple connections has been done
644 * simple manpage for tincd
646 version 0.2.10 Jan 18 1999
647 * passphrase support added
649 version 0.2.9 Jan 13 1999
652 version 0.2.8 Jan 11 1999
653 * a reworked protocol version
655 * more reliable networking code
656 * automatic reconnection
657 * still does not work with more than one connection :)
658 * strips MAC addresses before sending, so there's less overhead, and
661 version 0.2.7 Jan 3 1999
662 * several updates to make extending more easy.
664 version 0.2.6 Dec 20 1998
665 * Point-to-Point connections have been established, including
666 blowfish encryption and a secret key-exchange.
668 version 0.2.5 Dec 16 1998
669 * Project renamed to tinc, in honour of TINC.
671 version 0.2.4 Dec 16 1998
672 * now it really does ;)
674 version 0.2.3 Nov 24 1998
675 * it sort of works now
677 version 0.2.2 Nov 20 1998
680 version 0.2.1 Nov 14 1998
projects / tinc / blob