1 Version 1.0.36 August 26 2019
3 * Fix compiling tinc with certain versions of the OpenSSL library.
4 * Fix parsing some IPv6 addresses with :: in them.
5 * Fix GraphDumpFile output to handle node names starting with a digit.
6 * Fix a potential segmentation fault when fragmenting packets.
8 Thanks to Rosen Penev, Quentin Rameau and Werner Schreiber for their
9 contributions to this version of tinc.
11 Version 1.0.35 October 5 2018
13 * Prevent oracle attacks (CVE-2018-16737, CVE-2018-16738).
14 * Prevent a MITM from forcing a NULL cipher for UDP (CVE-2018-16758).
15 * Minor fixes in the documentation.
17 Thanks to Amine Amri and Rafael Sadowski for their contributions to this
20 Version 1.0.34 June 12 2018
22 * Fix a potential segmentation fault when connecting to an IPv6 peer via a
24 * Minor improvements to the build system.
25 * Make the systemd service file identical to the one from the 1.1 branch.
26 * Fix a potential problem causing IPv4 sockets to not work on macOS.
28 Thanks to Maximilian Stein and Wang Liu Shuai for their contributions to this
31 Version 1.0.33 November 4 2017
33 * Allow compilation from a build directory.
34 * Source code cleanups.
35 * Fix some options specified on the command line not surviving a HUP signal.
36 * Handle tun/tap device returning EPERM or EBUSY.
37 * Disable PMTUDiscovery when TCPOnly is used.
38 * Support the --runstatedir option of the autoconf 2.70.
40 Thanks to Rafael Sadowski and Pierre-Olivier Mercier for their contributions to
43 Version 1.0.32 September 2 2017
45 * Fix segmentation fault when using Cipher = none.
47 * Support PriorityInheritance for IPv6 packets.
48 * Fixes for Solaris tun/tap support.
49 * Bind outgoing TCP sockets when ListenAddress is used.
51 Thanks to Vittorio Gambaletta for his contribution to this version of tinc.
53 Version 1.0.31 January 15 2017
55 * Remove ExecStop in tinc@.service.
57 Thanks to Élie Bouttier for his contribution to this version of tinc.
59 Version 1.0.30 October 30 2016
61 * Fix troubles connecting to some HTTP proxies.
63 * Add mitigations for the Sweet32 attack when using a 64-bit block cipher.
65 * Use AES256 and SHA256 as the default encryption and digest algorithms.
67 Version 1.0.29 October 9 2016
69 * Fix UDP communication with peers with link-local IPv6 addresses.
71 * Ensure compatibility with OpenSSL 1.1.0.
73 * Ensure autoreconf can be run without requiring autoconf-archive.
75 * Log warnings about dropped packets only at debug level 5.
77 Version 1.0.28 April 10 2016
79 * Fix compilation on BSD platforms.
81 * Add systemd service files.
83 Version 1.0.27 April 10 2016
85 * When using Proxy, let the proxy resolve hostnames if tinc can't.
87 * Fixes and improvements of the DecrementTTL option.
89 * Fixed the $NAME variable in subnet-up/down scripts for the local Subnets.
91 * Fixed potentially wrong checksum generation when clamping the MSS.
93 * Properly choose between the system's or our own copy of getopt.
95 * Fixed compiling tinc for Cygwin with MinGW installed.
97 * Added support for OS X utun interfaces.
99 * Documentation updates and minor fixes.
101 Thanks to Vittorio Gambaletta, LunarShaddow, Florian Weik and Nathan Stratton
102 Treadway for their contributions to this version of tinc.
104 Version 1.0.26 July 5 2015
106 * Tinc now forces glibc to reload /etc/resolv.conf for every hostname lookup.
108 * Fixed --logfile without a filename on Windows.
110 * Ensure tinc can be compiled when using musl libc.
112 Thanks to Jo-Philipp Wich for his contribution to this version of tinc.
114 Version 1.0.25 December 22 2014
116 * Documentation updates.
118 * Support linking against -lresolv on Mac OS X.
120 * Fix scripts on Windows when using the ScriptsInterpreter option.
122 * Allow a minimum reconnect timeout to be specified.
124 * Support PriorityInheritance on IPv6 sockets.
126 Thanks to David Pflug, Baptiste Jonglez, Alexis Hildebrandt, Borg, Jochen Voss,
127 Tomislav Čohar and VittGam for their contributions to this version of tinc.
129 Version 1.0.24 May 11 2014
131 * Various compiler hardening flags are enabled by default.
133 * Updated support for Solaris, allowing switch mode on Solaris 11.
135 * Configuration will now also be read from a conf.d directory.
137 * Various updates to the documentation.
139 * Tinc now forces glibc to reload /etc/resolv.conf after it receives SIGALRM.
141 * Fixed a potential routing loop when IndirectData or TCPOnly is used and
142 broadcast packets are being sent.
144 * Improved security with constant time memcmp and stricter use of OpenSSL's
147 * Fixed all issues found by Coverity.
149 Thanks to Florent Clairambault, Vilbrekin, luckyhacky, Armin Fisslthaler, Loïc
150 Dachary and Steffan Karger for their contributions to this version of tinc.
152 Version 1.0.23 October 19 2013
154 * Start authentication immediately on outgoing connections (useful for sslh).
156 * Fixed segfault when Name = $HOST but $HOST is not set.
158 * Updated the build system and the documentation.
160 * Clean up child processes left over from Proxy = exec.
162 Version 1.0.22 August 13 2013
164 * Fixed the combination of Mode = router and DeviceType = tap.
166 * The $NAME variable is now set in subnet-up/down scripts.
168 * Tinc now gives an error when unknown options are given on the command line.
170 * Tinc now correctly handles a space between a short command line option and
171 an optional argument.
173 Thanks to Etienne Dechamps for his contribution to this version of tinc.
175 Version 1.0.21 April 22 2013
177 * Drop packets forwarded via TCP if they are too big (CVE-2013-1428).
179 Thanks to Martin Schobert for auditing tinc and reporting this vulnerability.
181 Version 1.0.20 March 03 2013
183 * Use /dev/tap0 by default on FreeBSD and NetBSD when using switch mode.
185 * Minor improvements and clarifications in the documentation.
187 * Allow tinc to be cross-compiled with Android's NDK.
189 * The discovered PMTU is now also applied to VLAN tagged traffic.
191 * The LocalDiscovery option now makes use of all addresses tinc is bound to.
193 * Fixed support for tunemu on iOS devices.
195 * The PriorityInheritance option now also works with switch mode.
197 * Fixed tinc crashing when using a SOCKS5 proxy.
199 Thanks to Mesar Hameed, Vilbrekin and Martin Schürrer for their contributions
200 to this version of tinc.
202 Version 1.0.19 June 25 2012
204 * Allow :: notation in IPv6 Subnets.
206 * Add support for systemd style socket activation.
208 * Allow environment variables to be used for the Name option.
210 * Add basic support for SOCKS proxies, HTTP proxies, and proxying through an
213 Thanks to Anthony G. Basile and Michael Tokarev for their contributions to
214 this version of tinc.
216 Version 1.0.18 March 25 2012
218 * Fixed IPv6 in switch mode by turning off DecrementTTL by default.
220 * Allow a port number to be specified in BindToAddress, which also allows tinc
221 to listen on multiple ports.
223 * Add support for multicast communication with UML/QEMU/KVM.
225 Version 1.0.17 March 10 2012
227 * The DeviceType option can now be used to select dummy, raw socket, UML and
228 VDE devices without needing to recompile tinc.
230 * Allow multiple BindToAddress statements.
232 * Decrement TTL value of IPv4 and IPv6 packets.
234 * Add LocalDiscovery option allowing tinc to detect peers that are behind the
237 * Accept Subnets passed with the -o option when StrictSubnets = yes.
239 * Disabling old RSA keys when generating new ones now also works properly on
242 Thanks to Nick Hibma for his contribution to this version of tinc.
244 Version 1.0.16 July 23 2011
246 * Fixed a performance issue with TCP communication under Windows.
248 * Fixed code that, during network outages, would cause tinc to exit when it
249 thought two nodes with identical Names were on the VPN.
251 Version 1.0.15 June 24 2011
253 * Improved logging to file.
255 * Reduced amount of process wakeups on platforms which support pselect().
257 * Fixed ProcessPriority option under Windows.
259 Version 1.0.14 May 8 2011
261 * Fixed reading configuration files that do not end with a newline. Again.
263 * Allow arbitrary configuration options being specified on the command line.
265 * Allow all options in both tinc.conf and the local host config file.
267 * Configurable replay window, UDP send and receive buffers for performance tuning.
269 * Try harder to get UDP communication back after falling back to TCP.
271 * Initial support for attaching tinc to a VDE switch.
273 * DragonFly BSD support.
275 * Allow linking with OpenSSL 1.0.0.
277 Thanks to Brandon Black, Julien Muchembled, Michael Tokarev, Rumko and Timothy
278 Redaelli for their contributions to this version of tinc.
280 Version 1.0.13 Apr 11 2010
282 * Allow building tinc without LZO and/or Zlib.
284 * Clamp MSS of TCP packets in both directions.
286 * Experimental StrictSubnets, Forwarding and DirectOnly options,
287 giving more control over information and packets received from/sent to other
290 * Ensure tinc never sends symbolic names for ports over the wire.
292 Version 1.0.12 Feb 3 2010
294 * Really allow fast roaming of hosts to other nodes in a switched VPN.
296 * Fixes missing or incorrect environment variables when calling host-up/down
297 and subnet-up/down scripts in some cases.
299 * Allow port to be specified in Address statements.
301 * Clamp MSS of TCP packets to the discovered path MTU.
303 * Let two nodes behind NAT learn each others current UDP address and port via
304 a third node, potentially allowing direct communications in a similar way to
307 Version 1.0.11 Nov 1 2009
309 * Fixed potential crash when the HUP signal is sent.
311 * Fixes handling of weighted Subnets in switch and hub modes, preventing
312 unnecessary broadcasts.
314 * Works around a MinGW bug that caused packets to Windows nodes to always be
317 * Improvements to the PMTU discovery code, especially on Windows.
319 * Use UDP again in certain cases where 1.0.10 was too conservative and fell
320 back to TCP unnecessarily.
322 * Allow fast roaming of hosts to other nodes in a switched VPN.
324 Version 1.0.10 Oct 18 2009
326 * Fixed potential crashes during shutdown and (in rare conditions) when other
327 nodes disconnected from the VPN.
329 * Improved NAT handling: tinc now copes with mangled port numbers, and will
330 automatically fall back to TCP if direct UDP connection between nodes is not
331 possible. The TCPOnly option should not have to be used anymore.
333 * Allow configuration files with CRLF line endings to be read on UNIX.
335 * Disable old RSA keys when generating new ones, and raise the default size of
336 new RSA keys to 2048 bits.
338 * Many fixes in the path MTU discovery code, especially when Compression is
341 * Tinc can now drop privileges and/or chroot itself.
343 * The TunnelServer code now just ignores information from clients instead of
346 * Improved performance on Windows by using the new ProcessPriority option and
347 by making the handling of packets received from the TAP-Win32 adapter more
350 * Code cleanups: tinc now follows the C99 standard, copyright headers have
351 been updated to include patch authors, checkpoint tracing and localisation
352 features have been removed.
354 * Support for (jailbroken) iPhone and iPod Touch has been added.
356 Thanks to Florian Forster, Grzegorz Dymarek and especially Michael Tokarev for
357 their contributions to this version of tinc.
359 Version 1.0.9 Dec 26 2008
361 * Fixed tinc as a service under Windows 2003.
363 * Fixed reading configuration files that do not end with a newline.
365 * Fixed crashes in situations where hostnames could not be resolved or hosts
366 would disconnect at the same time as session keys were exchanged.
368 * Improved default settings of tun and tap devices on BSD platforms.
370 * Make IPv6 sockets bind only to IPv6 on Linux.
372 * Enable path MTU discovery by default.
374 * Fixed a memory leak that occurred when connections were closed.
376 Thanks to Max Rijevski for his contributions to this version of tinc.
378 Version 1.0.8 May 16 2007
380 * Fixed some memory and resource leaks.
382 * Made network sockets non-blocking under Windows.
384 Thanks to Scott Lamb and "dnk" for their contributions to this version of tinc.
386 Version 1.0.7 Jan 5 2007
388 * Fixed a bug that caused slow network speeds on Windows.
390 * Fixed a bug that caused tinc unable to write packets to the tun device on
393 Version 1.0.6 Dec 18 2006
395 * More flexible detection of the LZO libraries when compiling.
397 * Fixed a bug where broadcasts in switch and hub modes sometimes would not
398 work anymore when part of the VPN had become disconnected from the rest.
400 version 1.0.5 Nov 14 2006
402 * Lots of small fixes.
404 * Broadcast packets no longer grow in size with each hop. This should
405 fix switch mode (again).
407 * Generic host-up and host-down scripts.
409 * Optionally dump graph in graphviz format to a file or a script.
411 * Support LZO 2.0 and later.
413 Thanks to Scott Lamb for his contributions to this version of tinc.
415 version 1.0.4 May 4 2005
417 * Fix switch and hub modes.
419 * Optionally start scripts when a Subnet becomes (un)reachable.
421 version 1.0.3 Nov 11 2004
423 * Show error message when failing to write a PID file.
425 * Ignore spaces at end of lines in config files.
427 * Fix handling of late packets.
429 * Unify BSD tun/tap device handling. This allows IPv6 on tun devices and
430 anything on tap devices as long as the underlying OS supports it.
432 * Handle IPv6 on Solaris tun devices.
434 * Allow tinc to work properly under Windows XP SP2.
436 * Allow VLAN tagged Ethernet frames in switch and hub mode.
438 * Experimental PMTUDiscovery, TunnelServer and BlockingTCP options.
440 version 1.0.2 Nov 8 2003
442 * Fix address and hostname resolving under Windows.
444 * Remove warnings about non-existing scripts and unsupported address families.
446 * Use the event logger under Windows.
448 * Fix quoting of filenames and command line arguments under Windows.
450 * Strict checks for length incoming network packets and return values of
451 cryptographic functions,
453 * Fix a bug in metadata handling that made the tinc daemon abort.
455 version 1.0.1 Aug 14 2003
457 * Allow empty lines in config files.
459 * Fix handling of spaces and backslashes in filenames under native Windows.
461 * Allow scripts to be executed under native Windows.
463 * Update documentation, make it less Linux specific.
465 version 1.0 Aug 4 2003
467 * Lots of small bugfixes and code cleanups.
469 * Throughput doubled and latency reduced.
471 * Added support for LZO compression.
473 * No need to set MAC address or disable ARP anymore.
475 * Added support for Windows 2000 and XP, both natively and in a Cygwin
478 version 1.0pre8 Sep 16 2002
480 * More fixes for subnets with prefixlength undivisible by 8.
482 * Added support for NetBSD and MacOS/X.
484 * Switched from undirected graphs to directed graphs to avoid certain race
485 conditions and improve scalability.
487 * Generalized broadcasting and forwarding of protocol messages.
489 * Cleanup of source code.
492 version 1.0pre7 Apr 7 2002
494 * Don't do blocking read()s when getting a signal.
496 * Remove RSA key checking code, since it sometimes thinks perfectly good RSA
499 * Fix handling of subnets when prefixlength isn't divisible by 8.
502 version 1.0pre6 Mar 27 2002
504 * Improvement of redundant links:
506 * Non-blocking connects.
508 * Protocol broadcast messages can no longer go into an infinite loop.
510 * Graph algorithm updated to look harder for direct connections.
512 * Good support for routing IPv6 packets over the VPN. Works on Linux,
513 FreeBSD, possibly OpenBSD but not on Solaris.
515 * Support for tunnels over IPv6 networks. Works on all supported
518 * Optional compression of UDP connections using zlib.
520 * Optionally let UDP connections inherit TOS field of tunneled packets.
522 * Optionally start scripts when certain hosts become (un)reachable.
525 version 1.0pre5 Feb 9 2002
527 * Security enhancements:
529 * Added sequence number and optional message authentication code to
532 * Configurable encryption cipher and digest algorithms.
534 * More robust handling of dis- and reconnects.
536 * Added a "switch" and a "hub" mode to allow bridging setups.
538 * Preliminary support for routing of IPv6 packets.
540 * Supports Linux, FreeBSD, OpenBSD and Solaris.
543 It looks like this might be the last release before 1.0.
546 version 1.0pre4 Jan 17 2001
548 * Updated documentation; the documentation now reflects the
549 configuration as it is.
551 * Some internal changes to make tinc scale better for large
552 networks, such as using AVL trees instead of linked lists for the
555 * RSA keys can be stored in separate files if needed. See the
556 documentation for more information.
558 * tinc has now been reported to run on Linux PowerPC and FreeBSD x86.
562 version 1.0pre3 Oct 31 2000
564 * The protocol has been redesigned, and although some details are
565 still under discussion, this is secure. Care has been taken to
566 resist most, if not all, attacks.
568 * Unfortunately this protocol is not compatible with earlier versions,
569 nor are earlier versions compatible with this version. Because the
570 older protocol has huge security flaws, we feel that not
571 implementing backwards compatibility is justified.
573 * Some data about the protocol:
575 * It uses public/private RSA keys for authentication (this is the
576 actual fix for the security hole).
578 * All cryptographic functions have been taken out of tinc, instead
579 it uses the OpenSSL library functions.
581 * Offers support for multiple subnets per tinc daemon.
583 * New is also the support for the universal tun/tap device. This
584 means better portability to FreeBSD and Solaris.
586 * tinc is tested to compile on Solaris, Linux x86, Linux alpha.
588 * tinc now uses the OpenSSL library for cryptographic operations.
589 More information on getting and installing OpenSSL is in the manual.
590 This also means that the GMP library is no longer required.
592 * Further, thanks to Enrique Zanardi, we have Spanish messages; Matias
593 Carrasco provided us with a Spanish translation of the manual.
596 What still needs to be done before 1.0:
598 * Documentation. Especially since the protocol has changed, and a lot
599 of configuration directives have been added.
604 version 1.0pre2 May 31 2000
606 * This version has been internationalized; and a Dutch translation has
609 * Two configuration variables have been added:
610 * VpnMask - the IP network mask for the entire VPN, not just our
611 subnet (as given by MyVirtualIP). The Redhat and Debian packages
612 use this variable in their system startup scripts, but it is
614 * Hostnames - if set to `yes', look up the names of IP addresses
615 trying to connect to us. Default set to `no', to prevent lockups
618 * The system startup scripts for Debian and Redhat use
619 /etc/tinc/nets.boot to find out which networks need to be started
622 * Fixes to prevent denial of service attacks by sending random data
623 after connecting (and even when the connection has been established),
624 either random garbage or just nonsensical protocol fields.
626 * tinc will retry to connect upon startup, does not quit if it doesn't
629 * Hosts that are disconnected implicitly if we lose a connection get
630 deleted from the internal list, to prevent hogging eachother with
631 add and delete requests when the connection is restored.
634 What still needs to be done before 1.0:
637 * Failover ConnectTo lines, try another one if the first doesn't work.
642 version 1.0pre1 May 12 2000
644 * Various other bugfixes
645 * Documentation updates
647 version 0.3.3 Feb 9 2000
648 * Fixed bug that made tinc stop working with latest kernels (Guus
652 version 0.3.2 Nov 12 1999
653 * no more `Invalid filedescriptor' when working with multiple
655 * forward unknown packets to uplink
657 version 0.3.1 Oct 20 1999
658 * fixed a bug where tinc would exit without a trace
660 version 0.3 Aug 20 1999
661 * pings now work immediately
662 * all packet sizes get transmitted correctly
664 version 0.2.26 Aug 15 1999
665 * fixed some remaining bugs
666 * --sysconfdir works with configure
667 * last version before 0.3
669 version 0.2.25 Aug 8 1999
670 * improved stability, going towards 0.3 now.
672 version 0.2.24 Aug 7 1999
673 * added key aging, there's a new config variable, KeyExpire.
674 * updated man and info pages
676 version 0.2.23 Aug 5 1999
677 * all known bugs fixed, this is a candidate for 0.3
679 version 0.2.22 Apr 11 1999
680 * multiconnection thing is now working nearly perfect :)
682 version 0.2.21 Apr 10 1999
683 * You shouldn't notice a thing, but a lot has changed wrt key
684 management - except that it refuses to talk to versions < 0.2.20
688 version 0.2.19 Apr 3 1999
689 * don't install a libcipher.so
691 version 0.2.18 Apr 3 1999
692 * blowfish library dynamically loaded upon execution
693 * included Eric Young's IDEA library
695 version 0.2.17 Apr 1 1999
696 * tincd now re-executes itself in case of a segmentation fault.
698 version 0.2.16 Apr 1 1999
699 * wrote tincd.conf(5) man page, which still needs a lot of work.
700 * config file now accepts and tolerates spaces, and any integer base
701 for integer variables, and better error reporting. See
702 doc/tincd.conf.sample for an example.
704 version 0.2.15 Mar 29 1999
707 version 0.2.14 Feb 10 1999
708 * added --timeout flag and PingTimeout configuration
709 * did some first syslog cleanup work
711 version 0.2.13 Jan 23 1999
714 version 0.2.12 Jan 23 1999
715 * fixed nauseating bug so that it would crash whenever a connection
718 version 0.2.11 Jan 22 1999
719 * framework for multiple connections has been done
720 * simple manpage for tincd
722 version 0.2.10 Jan 18 1999
723 * passphrase support added
725 version 0.2.9 Jan 13 1999
728 version 0.2.8 Jan 11 1999
729 * a reworked protocol version
731 * more reliable networking code
732 * automatic reconnection
733 * still does not work with more than one connection :)
734 * strips MAC addresses before sending, so there's less overhead, and
737 version 0.2.7 Jan 3 1999
738 * several updates to make extending more easy.
740 version 0.2.6 Dec 20 1998
741 * Point-to-Point connections have been established, including
742 blowfish encryption and a secret key-exchange.
744 version 0.2.5 Dec 16 1998
745 * Project renamed to tinc, in honour of TINC.
747 version 0.2.4 Dec 16 1998
748 * now it really does ;)
750 version 0.2.3 Nov 24 1998
751 * it sort of works now
753 version 0.2.2 Nov 20 1998
756 version 0.2.1 Nov 14 1998