The zvikuru kushandiswa Apache License uye GNU General Public License vanonzi overly restrictive.In June 2001, kunokonzerwa kunetseka pamusoro Darren Reed kuti kuchinja IPFilter kuti rezinesi wording, munhu hurongwa rezinesi odhita pamusoro OpenBSD zvengarava uye mabviro miti yakaitwa. In anopfuura zana mafaira yose hurongwa yakawanikwa kuti unlicensed, ambiguously marezinesi kana kushandiswa zvinopesana nemitemo kushanda Code. Kuti vave nechokwadi kuti zvose akakodzera marezinesi vakanga zvakakodzera kuomerera, akanga achiedza "kuchengeta mweya yepakutanga Berkeley Unix Copyrights", izvo akabvumira munhu "zvine unencumbered Unix mabviro kuparadzirwa".The zvikuru kushandiswa Apache License uye GNU General Public License vanoonekwa overly kurambidza.
Berkeley Unix