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theo de raadt wikipedia jump to content main menu main menu move to sidebar hide navigation main page contents current events random article about wikipedia contact us contribute help learn to edit community portal recent changes upload file special pages search search appearance donate create account log in personal tools donate create account log in contents move to sidebar hide top 1 early life 2 netbsd 3 openbsd 4 outspokenness toggle outspokenness subsection 4 1 darpa funding cancellation 4 2 free driver advocacy 4 3 clash with linux developers 5 references 6 external links toggle the table of contents theo de raadt 26 languages العربية مصرى تۆرکجه български català deutsch español eesti فارسی suomi français magyar italiano 日本語 한국어 latviešu malagasy polski português русский српски srpski svenska தமிழ் türkçe українська 中文 edit links article talk english read edit view history tools tools move to sidebar hide actions read edit view history general what links here related changes upload file permanent link page information cite this page get shortened url switch to legacy parser print export download as pdf printable version in other projects wikimedia commons wikiquote wikidata item appearance move to sidebar hide from wikipedia the free encyclopedia leader of the openbsd project born 1968 theo de raadt de raadt in 2013 born 1968 05 19 19 may 1968 age 58 pretoria south africa education university of calgary occupation software engineer known for netbsd openbsd openssh theo de raadt d ə ˈ r ɔː t də rawt dutch ˈteːjoː də ˈraːt born 19 may 1968 is a south african born software engineer who lives in calgary canada he is the founder and leader of the openbsd and openssh projects and was also a founding member of netbsd in 2004 de raadt won the free software award for his work on openbsd and openssh 1 early life edit de raadt is the eldest of four children to a dutch father and a south african mother with two sisters and a brother citation needed concern over the mandatory two year armed forces conscription in south africa led the family to emigrate to calgary alberta canada in november 1977 in 1983 the largest recession in canada since the great depression sent the family to the yukon prior to the move de raadt got his first computer a vic 20 which was soon followed by an amiga it is with these computers that he first began to develop software 2 in 1992 he obtained a bsc in computer science from the university of calgary netbsd edit main article netbsd in 1993 de raadt founded netbsd with chris demetriou adam glass and charles hannum who felt frustrated at the poor quality of 386bsd and believed an open development model would be better 386bsd was derived from the original university of california berkeley s 4 3bsd release while the new netbsd project would merge relevant code from the networking 2 and 386bsd releases the new project focused on clean portable correct code with the goal of producing a unified multi platform production quality bsd operating system the first netbsd source code repository was established on march 21 1993 and the initial release netbsd 0 8 was made in april 1993 this was derived from 386bsd 0 1 plus the version 0 2 2 unofficial patchkit with several programs from the net 2 release missing from 386bsd re integrated and various other improvements in august 1993 netbsd 0 9 was released which contained many enhancements and bug fixes this was still a pc platform only release although by this time work was underway to add support for other architectures netbsd 1 0 was released in october 1994 this was the first multi platform release supporting the ibm pc compatible hp 9000 series 300 amiga 68k macintosh sun 4c series and pc532 also in this release the legally encumbered net 2 derived source code was replaced with equivalent code from 4 4bsd lite in accordance with the usl v bsdi lawsuit settlement de raadt played a vital role in the creation of the sparc port implementing much of the initial code together with chuck cranor 3 openbsd edit main article openbsd in december 1994 de raadt was forced to resign from the netbsd core team and his access to the source repository was revoked fellow team members claimed it was due to rude and abusive behaviour on the mailing lists 4 in his book free for all peter wayner claims that de raadt began to rub some people the wrong way before the split from netbsd 5 while linus torvalds has described him as difficult 6 many have different feelings the same interviewer describes de raadt s transformation on founding openbsd and his desire to take care of his team some find his straightforwardness refreshing and de raadt remains widely respected as a hacker 7 and security expert 8 in october 1995 de raadt founded openbsd a new project forked from netbsd 1 0 the initial release openbsd 1 2 was made in july 1996 followed in october of the same year by openbsd 2 0 9 since then the project has followed a schedule of a release every six months each of which is maintained and supported for one year outspokenness edit jon maddog hall presents de raadt with daemon horns at fisl8 de raadt has been a vocal advocate of free software since the inception of openbsd but he has on occasion had rather public disputes with various groups from linux advocates to governments this outspoken attitude while sometimes the cause of conflict has also led him to acclaim de raadt has given presentations at open source free software and security conferences around the world including fosdem in brussels belgium usenix in san antonio texas u s auug conference in melbourne australia and fisl in porto alegre rs brazil darpa funding cancellation edit this section of a biography of a living person needs additional citations for verification please help by adding reliable sources contentious material about living persons that is unsourced or poorly sourced must be removed immediately especially if potentially libelous or harmful find sources theo de raadt news newspapers books scholar jstor august 2022 learn how and when to remove this message after de raadt stated his disapproval of the u s led invasion of iraq in an april 2003 interview 10 with toronto s globe and mail a multi million dollar us department of defense grant to the university of pennsylvania s posse project was cancelled effectively ending the project funding from the grant had been used in the development of openssh and openbsd as well as many other projects and was to be used to pay for the hackathon planned for may 8 2003 despite money from the grant already having been used to secure accommodations for sixty developers for a week the money was reclaimed by the government at a loss and the hotel was told not to allow the developers to pay the reclaimed money to resecure the rooms 11 this resulted in criticism among some that the us military held an anti free speech attitude the grant termination was however not as bad a blow as some portrayed it the project s supporters rallied to help and the hackathon went on almost as planned the funding was cut mere months before the end of the grant further fueling the speculations regarding the situation surrounding the grant s termination free driver advocacy edit de raadt is also well known for his advocacy of free software drivers he has long been critical of developers of linux and other free platforms for their tolerance of non free drivers and acceptance of non disclosure agreements in particular de raadt has worked to convince wireless hardware vendors to allow the firmware images of their products to be freely redistributed these efforts have been largely successful particularly in negotiations with taiwanese companies leading to many new wireless drivers de raadt has commented that most taiwanese vendors give us documentation almost immediately allowing open source drivers to reliably support devices as opposed to the lack of willingness from us companies like intel and broadcom to release firmware images free from licensing restrictions 12 clash with linux developers edit in april 2007 de raadt was involved in a controversy involving the use of gpl code from the linux bcm43xx driver in the bsd bcw driver 13 14 linux developers accused the bsd community of infringing gpl code but de raadt denied infringement arguing that the bsd driver was not released he also maintained that the conflict was not about gpl but the way linux developer michael buesch handled the situation to buesch s email he responded 15 it will be resolved in our tree but it is up to him which way he does it but when you approach issues like this with comments like we d like you to start contacting us to resolve the issue now and your first mail is cc d to a couple hundred people in the future please think more carefully ok because right now in that mail you ve pretty much done broadcom s job for them you ve told the entire bsd community who may want to use a driver for this chip later that because of a few gpl issues you are willing to use very strong words published very widely to disrupt the efforts of one guy who is trying to do things for them and you are going to do this using the gpl even you did not privately mail that developer no you basically went public with it that is how about half the user and developer community will see it they will see your widely posted mail as an overly strong position another clash occurred in august 2007 when a group of linux developers attempted to modify the license of dual licensed ath5k driver de raadt summarised the issue as follows 16 gpl fans said the great problem we would face is that companies would take our bsd code modify it and not give back nope the great problem we face is that people would wrap the gpl around our code and lock us out in the same way that these supposed companies would lock us out just like the linux community we have many companies giving us code back all the time but once the code is gpl d we cannot get it back references edit theo de raadt presented with the 2004 free software award retrieved 11 april 2018 the age article staying on the cutting edge october 8 2004 accessed april 5 2006 chuck cranor s home page glass adam message to netbsd users theo de raadt sic december 23 1994 visited january 8 2006 wayner peter free for all how linux and the free software movement undercut the high tech titans 18 3 flames fights and the birth of openbsd archived 2009 07 19 at the wayback machine 2000 visited january 6 2006 forbes is linux for losers june 16 2005 visited january 8 2006 in this message the netbsd core team acknowledge de raadt s positive contributions to the project despite their problems with him tux journal a good morning with theo de raadt june 2 2005 visited april 21 2006 original is 404 please see a cached copy on archive org raadt theo de mail to openbsd announce the openbsd 2 0 release archived 2005 05 27 at the wayback machine october 18 1996 visited december 10 2005 globe and mail article u s military helps fund calgary hacker april 6 2003 accessed september 5 2019 lwn net article darpa cancels openbsd funding april 24 2003 accessed april 5 2006 andrews jeremy may 2 2006 interview theo de raadt archived from the original on april 24 2013 lxer article broadcom driver dispute uglier than necessary april 7 2007 accessed april 8 2007 thread on gmane linux kernel wireless general openbsd bcw possible gpl license violation issues various dates beginning april 4 2007 accessed april 8 2007 theo de raadt 4 april 2007 openbsd bcw possible gpl license violation issues retrieved 28 may 2017 via marc info de raadt theo august 31 2007 that whole linux stealing our code thing lkml org external links edit wikiquote has quotations related to theo de raadt wikimedia commons has media related to theo de raadt official website 2000 interview at slashdot 2001 interview at kerneltrap 2006 interview at kerneltrap v t e the openbsd project operating system openbsd version history security features related projects bio carp doas httpd fdm libressl mandoc openbgpd openiked openntpd openospfd opensmtpd openssh pf pfsync sensors sndio spamd sudo tmux xenocara cwm people theo de raadt niels provos organizations openbsd foundation publications openbsd journal v t e berkeley software distribution people bob fabry keith bostic marshall kirk mckusick michael j karels bill joy samuel leffler jordan hubbard theo de raadt poul henning kamp matthew dillon ozalp babaoglu lynne and william jolitz derivatives active freebsd ghostbsd openbsd netbsd dragonfly bsd midnightbsd miros bsd junos os darwin macos ios audioos ipados tvos visionos watchos bridgeos ps3 ps4 full list discontinued 386bsd bsd os sunos trueos ultrix companies sleepycat software walnut creek cdrom berkeley software design ixsystems other topics comparison history licensing bsd daemon lumina computer systems research group category portal free and open source software authority control databases international isni viaf worldcat academics association for computing machinery dblp artists musicbrainz retrieved from https en wikipedia org w index php title theo_de_raadt oldid 1372572296 categories canadian software engineers computer security specialists free software programmers openbsd people scientists from calgary south african emigrants to canada canadian people of afrikaner descent canadian people of dutch descent 1968 births living people kernel programmers university of calgary alumni hidden categories articles with short description short description is different from wikidata articles with hcards pages with dutch ipa all articles with unsourced statements articles with unsourced statements from april 2026 webarchive template wayback links blp articles lacking sources from august 2022 all blp articles lacking sources commons category link is on wikidata this page was last edited on 1 september 2026 at 08 20 utc page was rendered with parsoid text is available under the creative commons 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