Duba wurin da ke ƙasa sannan ka amsa tambayar daga baya a cikin harshe ɗaya kamar yadda wurin yake:  Passage: OpenBSD yana riƙe da ƙa'idar lasisi mai ƙarfi, yana fifita lasisin ISC da sauran bambance-bambancen lasisin BSD. Aikin yana ƙoƙari ya "kiyaye ruhun haƙƙin mallaka na Berkeley Unix na asali", wanda ya ba da izinin "rarraba tushen tushen Unix mara nauyi". An yi amfani da lasisin Apache da GNU General Public License da aka yi amfani da su sosai. A watan Yunin 2001, saboda damuwa game da sauye-sauyen Darren Reed na kalmomin lasisin IPFilter, an gudanar da binciken lasisi na yau da kullun na tashoshin OpenBSD da bishiyoyin tushe. An gano lambar a cikin fayiloli sama da ɗari a duk faɗin tsarin ba tare da lasisi ba, lasisi mai rikitarwa ko amfani da shi ba tare da sharuɗɗan lasisin ba. Don tabbatar da cewa an bi duk lasisi yadda yakamata, an yi ƙoƙari don tuntuɓar duk masu haƙƙin mallaka masu dacewa: an cire wasu ɓangarorin lambar, an maye gurbin da yawa, kuma wasu, kamar kayan aikin jagorar multicast mrinfo da map-mbone, an sake lasisi don OpenBSD ya ci gaba da amfani da su. Hakanan an cire duk software da Daniel J. Bernstein ya samar a lokacin wannan binciken. A wancan lokacin, Bernstein ya nemi cewa duk gyare-gyaren da ya yi na lambar ya amince da shi kafin a sake rarraba shi, abin da masu haɓaka OpenBSD ba sa son sadaukar da lokaci ko ƙoƙari. Saboda damuwar lasisi, ƙungiyar OpenBSD ta sake aiwatar da software daga tushe ko kuma ta ɗauki ingantaccen software na yanzu. Misali, masu haɓaka OpenBSD sun ƙirƙiri matattarar fakiti na PF bayan an sanya ƙuntatawa mara izini akan IPFilter. PF ya fara bayyana a cikin OpenBSD 3.0 kuma yanzu yana samuwa a cikin sauran tsarin aiki. Masu haɓaka OpenBSD suma sun maye gurbin kayan aikin lasisi na GPL (kamar CVS, diff, grep da pkg-config) tare da kwatankwacin lasisi masu izini.  Tambaya: Waɗanne haƙƙin mallaka ne OpenBSD yayi amfani da su?
Berkeley Unix