1 Version 1.1pre2 Juli 17 2011
3 * .cookie files are renamed to .pid files, which are compatible with 1.0.x.
5 * Experimental protocol enhancements that can be enabled with the option
6 ExperimentalProtocol = yes:
8 * Ephemeral ECDH key exchange will be used for both the meta protocol and
10 * Key exchanges are signed with ECDSA.
11 * ECDSA public keys are automatically exchanged after RSA authentication if
12 nodes do not know each other's ECDSA public key yet.
14 Version 1.1pre1 June 25 2011
16 * Control interface allows control of a running tinc daemon. Used by:
17 * tincctl, a commandline utility
18 * tinc-gui, a preliminary GUI implemented in Python/wxWidgets
20 * Code cleanups and reorganization.
22 * Repleacable cryptography backend, currently supports OpenSSL and libgcrypt.
24 * Use libevent to handle I/O events and timeouts.
26 * Use splay trees instead of AVL trees to manage internal datastructures.
28 Thanks to Scott Lamb and Sven-Haegar Koch for their contributions to this
31 Version 1.0.19 June 25 2012
33 * Allow :: notation in IPv6 Subnets.
35 * Add support for systemd style socket activation.
37 * Allow environment variables to be used for the Name option.
39 * Add basic support for SOCKS proxies, HTTP proxies, and proxying through an
42 Version 1.0.18 March 25 2012
44 * Fixed IPv6 in switch mode by turning off DecrementTTL by default.
46 * Allow a port number to be specified in BindToAddress, which also allows tinc
47 to listen on multiple ports.
49 * Add support for multicast communication with UML/QEMU/KVM.
51 Version 1.0.17 March 10 2012
53 * The DeviceType option can now be used to select dummy, raw socket, UML and
54 VDE devices without needing to recompile tinc.
56 * Allow multiple BindToAddress statements.
58 * Decrement TTL value of IPv4 and IPv6 packets.
60 * Add LocalDiscovery option allowing tinc to detect peers that are behind the
63 * Accept Subnets passed with the -o option when StrictSubnets = yes.
65 * Disabling old RSA keys when generating new ones now also works properly on
68 Version 1.0.16 July 23 2011
70 * Fixed a performance issue with TCP communication under Windows.
72 * Fixed code that, during network outages, would cause tinc to exit when it
73 thought two nodes with identical Names were on the VPN.
75 Version 1.0.15 June 24 2011
77 * Improved logging to file.
79 * Reduced amount of process wakeups on platforms which support pselect().
81 * Fixed ProcessPriority option under Windows.
83 Thanks to Loïc Grenié for his contribution to this version of tinc.
85 Version 1.0.14 May 8 2011
87 * Fixed reading configuration files that do not end with a newline. Again.
89 * Allow arbitrary configuration options being specified on the command line.
91 * Allow all options in both tinc.conf and the local host config file.
93 * Configurable replay window, UDP send and receive buffers for performance tuning.
95 * Try harder to get UDP communication back after falling back to TCP.
97 * Initial support for attaching tinc to a VDE switch.
99 * DragonFly BSD support.
101 * Allow linking with OpenSSL 1.0.0.
103 Thanks to Brandon Black, Julien Muchembled, Michael Tokarev, Rumko and Timothy
104 Redaelli for their contributions to this version of tinc.
106 Version 1.0.13 Apr 11 2010
108 * Allow building tinc without LZO and/or Zlib.
110 * Clamp MSS of TCP packets in both directions.
112 * Experimental StrictSubnets, Forwarding and DirectOnly options,
113 giving more control over information and packets received from/sent to other
116 * Ensure tinc never sends symbolic names for ports over the wire.
118 Version 1.0.12 Feb 3 2010
120 * Really allow fast roaming of hosts to other nodes in a switched VPN.
122 * Fixes missing or incorrect environment variables when calling host-up/down
123 and subnet-up/down scripts in some cases.
125 * Allow port to be specified in Address statements.
127 * Clamp MSS of TCP packets to the discovered path MTU.
129 * Let two nodes behind NAT learn each others current UDP address and port via
130 a third node, potentially allowing direct communications in a similar way to
133 Version 1.0.11 Nov 1 2009
135 * Fixed potential crash when the HUP signal is sent.
137 * Fixes handling of weighted Subnets in switch and hub modes, preventing
138 unnecessary broadcasts.
140 * Works around a MinGW bug that caused packets to Windows nodes to always be
143 * Improvements to the PMTU discovery code, especially on Windows.
145 * Use UDP again in certain cases where 1.0.10 was too conservative and fell
146 back to TCP unnecessarily.
148 * Allow fast roaming of hosts to other nodes in a switched VPN.
150 Version 1.0.10 Oct 18 2009
152 * Fixed potential crashes during shutdown and (in rare conditions) when other
153 nodes disconnected from the VPN.
155 * Improved NAT handling: tinc now copes with mangled port numbers, and will
156 automatically fall back to TCP if direct UDP connection between nodes is not
157 possible. The TCPOnly option should not have to be used anymore.
159 * Allow configuration files with CRLF line endings to be read on UNIX.
161 * Disable old RSA keys when generating new ones, and raise the default size of
162 new RSA keys to 2048 bits.
164 * Many fixes in the path MTU discovery code, especially when Compression is
167 * Tinc can now drop privileges and/or chroot itself.
169 * The TunnelServer code now just ignores information from clients instead of
172 * Improved performance on Windows by using the new ProcessPriority option and
173 by making the handling of packets received from the TAP-Win32 adapter more
176 * Code cleanups: tinc now follows the C99 standard, copyright headers have
177 been updated to include patch authors, checkpoint tracing and localisation
178 features have been removed.
180 * Support for (jailbroken) iPhone and iPod Touch has been added.
182 Thanks to Florian Forster, Grzegorz Dymarek and especially Michael Tokarev for
183 their contributions to this version of tinc.
185 Version 1.0.9 Dec 26 2008
187 * Fixed tinc as a service under Windows 2003.
189 * Fixed reading configuration files that do not end with a newline.
191 * Fixed crashes in situations where hostnames could not be resolved or hosts
192 would disconnect at the same time as session keys were exchanged.
194 * Improved default settings of tun and tap devices on BSD platforms.
196 * Make IPv6 sockets bind only to IPv6 on Linux.
198 * Enable path MTU discovery by default.
200 * Fixed a memory leak that occured when connections were closed.
202 Thanks to Max Rijevski for his contributions to this version of tinc.
204 Version 1.0.8 May 16 2007
206 * Fixed some memory and resource leaks.
208 * Made network sockets non-blocking under Windows.
210 Thanks to Scott Lamb and "dnk" for their contributions to this version of tinc.
212 Version 1.0.7 Jan 5 2007
214 * Fixed a bug that caused slow network speeds on Windows.
216 * Fixed a bug that caused tinc unable to write packets to the tun device on
219 Version 1.0.6 Dec 18 2006
221 * More flexible detection of the LZO libraries when compiling.
223 * Fixed a bug where broadcasts in switch and hub modes sometimes would not
224 work anymore when part of the VPN had become disconnected from the rest.
226 version 1.0.5 Nov 14 2006
228 * Lots of small fixes.
230 * Broadcast packets no longer grow in size with each hop. This should
231 fix switch mode (again).
233 * Generic host-up and host-down scripts.
235 * Optionally dump graph in graphviz format to a file or a script.
237 * Support LZO 2.0 and later.
239 Thanks to Scott Lamb for his contributions to this version of tinc.
241 version 1.0.4 May 4 2005
243 * Fix switch and hub modes.
245 * Optionally start scripts when a Subnet becomes (un)reachable.
247 version 1.0.3 Nov 11 2004
249 * Show error message when failing to write a PID file.
251 * Ignore spaces at end of lines in config files.
253 * Fix handling of late packets.
255 * Unify BSD tun/tap device handling. This allows IPv6 on tun devices and
256 anything on tap devices as long as the underlying OS supports it.
258 * Handle IPv6 on Solaris tun devices.
260 * Allow tinc to work properly under Windows XP SP2.
262 * Allow VLAN tagged Ethernet frames in switch and hub mode.
264 * Experimental PMTUDiscovery, TunnelServer and BlockingTCP options.
266 version 1.0.2 Nov 8 2003
268 * Fix address and hostname resolving under Windows.
270 * Remove warnings about non-existing scripts and unsupported address families.
272 * Use the event logger under Windows.
274 * Fix quoting of filenames and command line arguments under Windows.
276 * Strict checks for length incoming network packets and return values of
277 cryptographic functions,
279 * Fix a bug in metadata handling that made the tinc daemon abort.
281 version 1.0.1 Aug 14 2003
283 * Allow empty lines in config files.
285 * Fix handling of spaces and backslashes in filenames under native Windows.
287 * Allow scripts to be executed under native Windows.
289 * Update documentation, make it less Linux specific.
291 version 1.0 Aug 4 2003
293 * Lots of small bugfixes and code cleanups.
295 * Throughput doubled and latency reduced.
297 * Added support for LZO compression.
299 * No need to set MAC address or disable ARP anymore.
301 * Added support for Windows 2000 and XP, both natively and in a Cygwin
304 version 1.0pre8 Sep 16 2002
306 * More fixes for subnets with prefixlength undivisible by 8.
308 * Added support for NetBSD and MacOS/X.
310 * Switched from undirected graphs to directed graphs to avoid certain race
311 conditions and improve scalability.
313 * Generalized broadcasting and forwarding of protocol messages.
315 * Cleanup of source code.
318 version 1.0pre7 Apr 7 2002
320 * Don't do blocking read()s when getting a signal.
322 * Remove RSA key checking code, since it sometimes thinks perfectly good RSA
325 * Fix handling of subnets when prefixlength isn't divisible by 8.
328 version 1.0pre6 Mar 27 2002
330 * Improvement of redundant links:
332 * Non-blocking connects.
334 * Protocol broadcast messages can no longer go into an infinite loop.
336 * Graph algorithm updated to look harder for direct connections.
338 * Good support for routing IPv6 packets over the VPN. Works on Linux,
339 FreeBSD, possibly OpenBSD but not on Solaris.
341 * Support for tunnels over IPv6 networks. Works on all supported
344 * Optional compression of UDP connections using zlib.
346 * Optionally let UDP connections inherit TOS field of tunneled packets.
348 * Optionally start scripts when certain hosts become (un)reachable.
351 version 1.0pre5 Feb 9 2002
353 * Security enhancements:
355 * Added sequence number and optional message authentication code to
358 * Configurable encryption cipher and digest algorithms.
360 * More robust handling of dis- and reconnects.
362 * Added a "switch" and a "hub" mode to allow bridging setups.
364 * Preliminary support for routing of IPv6 packets.
366 * Supports Linux, FreeBSD, OpenBSD and Solaris.
369 It looks like this might be the last release before 1.0.
372 version 1.0pre4 Jan 17 2001
374 * Updated documentation; the documentation now reflects the
375 configuration as it is.
377 * Some internal changes to make tinc scale better for large
378 networks, such as using AVL trees instead of linked lists for the
381 * RSA keys can be stored in separate files if needed. See the
382 documentation for more information.
384 * tinc has now been reported to run on Linux PowerPC and FreeBSD x86.
388 version 1.0pre3 Oct 31 2000
390 * The protocol has been redesigned, and although some details are
391 still under discussion, this is secure. Care has been taken to
392 resist most, if not all, attacks.
394 * Unfortunately this protocol is not compatible with earlier versions,
395 nor are earlier versions compatible with this version. Because the
396 older protocol has huge security flaws, we feel that not
397 implementing backwards compatibility is justified.
399 * Some data about the protocol:
401 * It uses public/private RSA keys for authentication (this is the
402 actual fix for the security hole).
404 * All cryptographic functions have been taken out of tinc, instead
405 it uses the OpenSSL library functions.
407 * Offers support for multiple subnets per tinc daemon.
409 * New is also the support for the universal tun/tap device. This
410 means better portability to FreeBSD and Solaris.
412 * tinc is tested to compile on Solaris, Linux x86, Linux alpha.
414 * tinc now uses the OpenSSL library for cryptographic operations.
415 More information on getting and installing OpenSSL is in the manual.
416 This also means that the GMP library is no longer required.
418 * Further, thanks to Enrique Zanardi, we have Spanish messages; Matias
419 Carrasco provided us with a Spanish translation of the manual.
422 What still needs to be done before 1.0:
424 * Documentation. Especially since the protocol has changed, and a lot
425 of configuration directives have been added.
430 version 1.0pre2 May 31 2000
432 * This version has been internationalized; and a Dutch translation has
435 * Two configuration variables have been added:
436 * VpnMask - the IP network mask for the entire VPN, not just our
437 subnet (as given by MyVirtualIP). The Redhat and Debian packages
438 use this variable in their system startup scripts, but it is
440 * Hostnames - if set to `yes', look up the names of IP addresses
441 trying to connect to us. Default set to `no', to prevent lockups
444 * The system startup scripts for Debian and Redhat use
445 /etc/tinc/nets.boot to find out which networks need to be started
448 * Fixes to prevent denial of service attacks by sending random data
449 after connecting (and even when the connection has been established),
450 either random garbage or just nonsensical protocol fields.
452 * tinc will retry to connect upon startup, does not quit if it doesn't
455 * Hosts that are disconnected implicitly if we lose a connection get
456 deleted from the internal list, to prevent hogging eachother with
457 add and delete requests when the connection is restored.
460 What still needs to be done before 1.0:
463 * Failover ConnectTo lines, try another one if the first doesn't work.
468 version 1.0pre1 May 12 2000
470 * Various other bugfixes
471 * Documentation updates
473 version 0.3.3 Feb 9 2000
474 * Fixed bug that made tinc stop working with latest kernels (Guus
478 version 0.3.2 Nov 12 1999
479 * no more `Invalid filedescriptor' when working with multiple
481 * forward unknown packets to uplink
483 version 0.3.1 Oct 20 1999
484 * fixed a bug where tinc would exit without a trace
486 version 0.3 Aug 20 1999
487 * pings now work immediately
488 * all packet sizes get transmitted correctly
490 version 0.2.26 Aug 15 1999
491 * fixed some remaining bugs
492 * --sysconfdir works with configure
493 * last version before 0.3
495 version 0.2.25 Aug 8 1999
496 * improved stability, going towards 0.3 now.
498 version 0.2.24 Aug 7 1999
499 * added key aging, there's a new config variable, KeyExpire.
500 * updated man and info pages
502 version 0.2.23 Aug 5 1999
503 * all known bugs fixed, this is a candidate for 0.3
505 version 0.2.22 Apr 11 1999
506 * multiconnection thing is now working nearly perfect :)
508 version 0.2.21 Apr 10 1999
509 * You shouldn't notice a thing, but a lot has changed wrt key
510 management - except that it refuses to talk to versions < 0.2.20
514 version 0.2.19 Apr 3 1999
515 * don't install a libcipher.so
517 version 0.2.18 Apr 3 1999
518 * blowfish library dynamically loaded upon execution
519 * included Eric Young's IDEA library
521 version 0.2.17 Apr 1 1999
522 * tincd now re-executes itself in case of a segmentation fault.
524 version 0.2.16 Apr 1 1999
525 * wrote tincd.conf(5) man page, which still needs a lot of work.
526 * config file now accepts and tolerates spaces, and any integer base
527 for integer variables, and better error reporting. See
528 doc/tincd.conf.sample for an example.
530 version 0.2.15 Mar 29 1999
533 version 0.2.14 Feb 10 1999
534 * added --timeout flag and PingTimeout configuration
535 * did some first syslog cleanup work
537 version 0.2.13 Jan 23 1999
540 version 0.2.12 Jan 23 1999
541 * fixed nauseating bug so that it would crash whenever a connection
544 version 0.2.11 Jan 22 1999
545 * framework for multiple connections has been done
546 * simple manpage for tincd
548 version 0.2.10 Jan 18 1999
549 * passphrase support added
551 version 0.2.9 Jan 13 1999
554 version 0.2.8 Jan 11 1999
555 * a reworked protocol version
557 * more reliable networking code
558 * automatic reconnection
559 * still does not work with more than one connection :)
560 * strips MAC addresses before sending, so there's less overhead, and
563 version 0.2.7 Jan 3 1999
564 * several updates to make extending more easy.
566 version 0.2.6 Dec 20 1998
567 * Point-to-Point connections have been established, including
568 blowfish encryption and a secret key-exchange.
570 version 0.2.5 Dec 16 1998
571 * Project renamed to tinc, in honour of TINC.
573 version 0.2.4 Dec 16 1998
574 * now it really does ;)
576 version 0.2.3 Nov 24 1998
577 * it sort of works now
579 version 0.2.2 Nov 20 1998
582 version 0.2.1 Nov 14 1998
projects / tinc / blob