{"id":254,"date":"2012-05-21T08:18:05","date_gmt":"2012-05-21T06:18:05","guid":{"rendered":"http:\/\/www.opencomp.hu\/?p=254"},"modified":"2020-03-25T10:17:53","modified_gmt":"2020-03-25T09:17:53","slug":"a-bsd-rol-altalaban","status":"publish","type":"post","link":"https:\/\/www.opencomp.hu\/?p=254","title":{"rendered":"A BSD-r\u0151l \u00e1ltal\u00e1ban"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\">Ez az \u00edr\u00e1s szolg\u00e1ljon bevezet\u0151\u00fcl az ezut\u00e1n k\u00f6vetkez\u0151 cikkekhez, melyek a BSD oper\u00e1ci\u00f3s rendszerekr\u0151l, azok m\u0171k\u00f6dtet\u00e9s\u00e9r\u0151l \u00e9s v\u00e9g\u00fcl, de nem utols\u00f3sorban \u00e1ltalam \u00e9rdekesnek tartott megold\u00e1sokr\u00f3l fognak sz\u00f3lni, ahol sok-sok olvas\u00e1s \u00e9s k\u00eds\u00e9rletezget\u00e9s ut\u00e1n jutottam el a m\u0171k\u00f6d\u0151 megold\u00e1sokig. <\/p>\n\n\n\n<!--more-->\n\n\n\n<p class=\"wp-block-paragraph\">Ezek mind m\u0171k\u00f6d\u0151 megold\u00e1sok, azonban az id\u0151 m\u00fal\u00e1s\u00e1val \u00e9s a verzi\u00f3k v\u00e1ltoz\u00e1s\u00e1val lehetnek k\u00fcl\u00f6nbs\u00e9gek, elt\u00e9r\u00e9sek a l\u00e9p\u00e9sek, ill. parancsok k\u00f6z\u00f6tt, \u00edgy minden k\u00f6vetkez\u0151 cikkben fel fogom t\u00fcntetni a verzi\u00f3sz\u00e1mokat is. De t\u00e9rj\u00fcnk vissza a cikk t\u00e9m\u00e1j\u00e1ra, nevezetesen:\u00a0<strong>mi is az a BSD?<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>El\u0151sz\u00f3 a BSD rendszerekr\u0151l<\/strong><\/h2>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter\"><a href=\"http:\/\/blog.xorp.hu\/wp-content\/uploads\/2012\/05\/bsd-devilettes.jpg\"><img decoding=\"async\" src=\"http:\/\/blog.xorp.hu\/wp-content\/uploads\/2012\/05\/bsd-devilettes-300x225.jpg\" alt=\"\" class=\"wp-image-6632\"\/><\/a><\/figure><\/div>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>A BSD<\/strong>&nbsp;a&nbsp;<strong>Berkeley Software Distribution<\/strong>&nbsp;mozaikszava, \u00e9s azon&nbsp;<a href=\"http:\/\/hu.wikipedia.org\/wiki\/UNIX\">UNIX<\/a>&nbsp;lesz\u00e1rmazottakat jel\u00f6lik ezzel, melyeket az 1970-es \u00e9vekben kezdtek el fejleszteni a Berkeley Egyetemen (<a href=\"http:\/\/hu.wikipedia.org\/wiki\/Kalifornia\">Kalifornia<\/a>, USA) . Egyszersmind haszn\u00e1lj\u00e1k a megjel\u00f6l\u00e9st az oper\u00e1ci\u00f3s rendszerekre, ill. licenszt\u00edpusukra.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>A BSD rendszerek l\u00e9trej\u00f6tt\u00e9nek kronol\u00f3gi\u00e1ja<\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>1970<\/strong>&nbsp;\u2013 korai UNIX disztrib\u00faci\u00f3kat forr\u00e1sk\u00f3ddal egy\u00fctt ad \u00e1t a Bell Labs a Berkeley Egyetemnek<br><strong>1974<\/strong>&nbsp;\u2013 az els\u0151 UNIX telep\u00edt\u00e9se PDP11-es rendszerre<br><strong>1977<\/strong>&nbsp;\u2013 Bill Joy, aki maga is a Berkeley-n v\u00e9gzett, \u00f6sszegy\u0171jti \u00e9s szalagra \u00edrja az els\u0151 kib\u0151v\u00edtett UNIX-ot, \u00e9s \u00edgy megsz\u00fcletik az 1BSD, ami egy add-on volt az akkor haszn\u00e1lt 6th Edition UNIX-hoz<br><strong>1978<\/strong>&nbsp;\u2013 2BSD megjelen\u00e9se, k\u00e9t fontos extr\u00e1val: a vi \u00e9s a C shell, ezek az\u00f3ta is el\u00e9rhet\u0151k a UNIX-okon. M\u00e9g ebben az \u00e9vben portolt\u00e1k a 2BSD-t VAX-ra.<br><strong>1979<\/strong>&nbsp;\u2013 A 2BSD-be fejlesztett \u00faj kernel, virtual memory kezel\u00e9st, \u00e9s \u00faj programokat adt\u00e1k ki 3BSD n\u00e9ven.&nbsp; Itt m\u00e1r a DARPA (kor\u00e1bban ARPA ) is \u00e9rdekl\u0151d\u00e9st mutatott az \u00faj oper\u00e1ci\u00f3s rendszer ir\u00e1ny\u00e1ba<br><strong>1980<\/strong>&nbsp;\u2013 a DARPA l\u00e9trehozza a Berkeley Computer Systems Research Group-ot (CSRG), ami m\u00e1r azzal a konkr\u00e9t c\u00e9llal m\u0171k\u00f6dik, hogy saj\u00e1t, standard UNIX-ot fejlesszen. Kiadj\u00e1k a 4BSD-t, sok \u00faj\u00edt\u00e1ssal.<br><strong>1981<\/strong>&nbsp;\u2013 4.1BSD, mely komoly kritik\u00e1kat kapott. Bill Joy folyamatosan hangolja a kernel, eg\u00e9szen m\u00edg el nem \u00e9ri a VAX teljes\u00edtm\u00e9ny-mutat\u00f3it.<br><strong>1983<\/strong>&nbsp;\u2013 k\u00e9t \u00e9v szigor\u00fa teszt ut\u00e1n megjelenik a 4.2BSD. Ez m\u00e1r tartalmazott egy TCP\/IP protokoll-stacket.<br><strong>1986<\/strong>&nbsp;\u2013 4.3BSD kiad\u00e1s. A megb\u00edzhat\u00f3s\u00e1g \u00e9s sebess\u00e9g sokat javult.<br><strong>1992<\/strong>&nbsp;\u2013 1994 Per, melynek eredm\u00e9nyek\u00e9ppen minim\u00e1lis v\u00e1ltoztat\u00e1st kellett n\u00e9h\u00e1ny f\u00e1jlkomponensen eszk\u00f6z\u00f6lni, ill. licenszben (a per \u00e1tfog\u00f3bb le\u00edr\u00e1sa meghaladja e cikk terjedelm\u00e9t)<br><strong>1994<\/strong>&nbsp;\u2013 4.4BSD kiad\u00e1s. A licenc felt\u00e9telek kimondt\u00e1k, hogy a szabadon terjeszthet\u0151 a forr\u00e1sk\u00f3d \u00e9s bin\u00e1ris form\u00e1j\u00e1ban is, az egyetlen kik\u00f6t\u00e9s, hogy az Egyetem szerz\u0151i jogi megjegyz\u00e9se \u00e9rintetlen maradjon a forr\u00e1sokban, \u00e9s az egyetem kapjon megbecs\u00fcl\u00e9st (credit) ha m\u00e1sok felhaszn\u00e1lj\u00e1k a k\u00f3dj\u00e1t.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Nagy vonalakban ennyit a BSD t\u00f6rt\u00e9net\u00e9r\u0151l. Tudnunk kell tov\u00e1bb\u00e1 azt a kev\u00e9ss\u00e9 ismert t\u00e9nyt, hogy b\u00e1r a Linux rendszerek (tal\u00e1n) nagyobb n\u00e9pszer\u0171s\u00e9gnek \u00f6rvendenek, mint a BSD-like oper\u00e1ci\u00f3s rendszerek, azonban a Linux rendszerek seg\u00e9dprogramjainak legal\u00e1bb a fele BSD terjeszt\u00e9sekb\u0151l sz\u00e1rmazik vagy sz\u00e1rmaztathat\u00f3.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Eml\u00edtettem a&nbsp;<strong>BSD licenszt\u00edpust<\/strong>. Ellent\u00e9tben a GNU GPL \u2013lel, a BSD t\u00edpus\u00fa licenszel\u00e9s sokkal megenged\u0151bb a GPL-hez viszony\u00edtva, gyakorlatilag b\u00e1rmit megenged a licenszelt rendszer haszn\u00e1l\u00f3j\u00e1nak, ebbe beletartozik a term\u00e9k (szoftver) \u00e1t\u00edr\u00e1sa \u00e9s z\u00e1rt (bin\u00e1ris) form\u00e1ban val\u00f3 terjeszt\u00e9se, kereskedelmi forgalmaz\u00e1sa. Mind\u00f6ssze olyan kit\u00e9telek szerepelnek benne, mint hogy az eredeti fejleszt\u0151k nem v\u00e1llalnak semmilyen felel\u0151ss\u00e9get a term\u00e9k haszn\u00e1lat\u00e1val kapcsolatban.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">BSD oper\u00e1ci\u00f3s rendszerek<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Napjainkban legn\u00e9pszer\u0171bb&nbsp; BSD rendszerek k\u00f6z\u00fcl h\u00e1rom f\u0151 terjeszt\u00e9s tarthat komolyabb&nbsp; \u00e9rdekl\u0151d\u00e9sre sz\u00e1mot, ezek a:<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u2013 FreeBSD<br>\u2013 OpenBSD<br>\u2013 NetBSD<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">illetve term\u00e9szetesen ezek lesz\u00e1rmazottai (pl. a DragonFly, mely a FreeBSD-b\u0151l sz\u00e1rmazik). K\u00f6z\u00f6s tulajdons\u00e1guk a nagyfok\u00fa megb\u00edzhat\u00f3s\u00e1g, a ny\u00edlt forr\u00e1sk\u00f3d, a kiv\u00e1l\u00f3 hordozhat\u00f3s\u00e1g (ebben a NetBSD t\u0171nik ki legink\u00e1bb, ahogy mondani szokt\u00e1k, egy keny\u00e9rpir\u00edt\u00f3ra is fel lehet telep\u00edteni), gyorsas\u00e1g, biztons\u00e1g. Kernel\u00fck modul\u00e1ris, \u00e9s t\u00e1mogatja a napjainkban elv\u00e1rt vagy elv\u00e1rhat\u00f3 szolg\u00e1ltat\u00e1sok, lehet\u0151s\u00e9gek majd mindegyik\u00e9t (cryptofs, RAID, sz\u00e9lesk\u00f6r\u0171 hardver-t\u00e1mogat\u00e1s, t\u0171zfal, stb.). Hibat\u0171r\u0151 f\u00e1jlrendszerek, saj\u00e1t t\u0171zfalmegold\u00e1s, \u00e9s csomagkezel\u00e9s jellemzi m\u00e9g \u0151ket.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">A&nbsp;<strong>FreeBSD<\/strong>&nbsp;1992-ben sz\u00fcletett, az\u00f3ta folyamatosan fejlesztik, jelenleg a 9.0-\u00e1s verzi\u00f3n\u00e1l tart \u00e9s gyors, logikus kellemes kezel\u0151fel\u00fclet\u00e9vel \u00e9s kiv\u00e1l\u00f3 dokument\u00e1ci\u00f3j\u00e1val m\u00e9lt\u00e1n a legn\u00e9pszer\u0171bb a h\u00e1rom fenti OS k\u00f6z\u00fcl. Web content management systemek, email serverek gyakorta haszn\u00e1lt oper\u00e1ci\u00f3s rendszere.<\/p>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter\"><a href=\"http:\/\/blog.xorp.hu\/wp-content\/uploads\/2012\/05\/fbsd-beastie1.jpg\"><img decoding=\"async\" src=\"http:\/\/blog.xorp.hu\/wp-content\/uploads\/2012\/05\/fbsd-beastie1-150x150.jpg\" alt=\"\" class=\"wp-image-6654\"\/><\/a><\/figure><\/div>\n\n\n\n<p class=\"wp-block-paragraph\">Az&nbsp;<strong>OpenBSD<\/strong>&nbsp;1994-1995-ben sz\u00fcletett, \u00e9s egyes statisztik\u00e1k szerint a fenti h\u00e1rom BSD OS m\u00e1sodik legn\u00e9pszer\u0171bb tagja. Kiv\u00e1l\u00f3 performanci\u00e1val rendelkezik, egyszer\u0171, \u00e9s minden sallangt\u00f3l mentes, nagyon stabil. \u00c9rdekess\u00e9ge, hogy minden release-hez (kiad\u00e1shoz) egy dalt \u00edrnak: ezeket le lehet t\u00f6lteni a fejleszt\u0151k weblapj\u00e1r\u00f3l, valamint az \u00e1ltaluk terjesztett CD-ken is megtal\u00e1lhat\u00f3ak.&nbsp; Az alaptelep\u00edt\u00e9sben, mindenf\u00e9le ut\u00f3konfigur\u00e1ci\u00f3 n\u00e9lk\u00fcl mind\u00f6ssze 1!!! darab t\u00e1volr\u00f3l is kiakn\u00e1zhat\u00f3 hib\u00e1t tal\u00e1ltak ebben az OS-ben. Jelenleg az 5.1-es verzi\u00f3n\u00e1l tart. \u00c9rdekess\u00e9g, hogy a fejleszt\u0151k munk\u00e1ja m\u00e9g&nbsp; saj\u00e1t ny\u00edlt forr\u00e1sk\u00f3d\u00fa routing protokollok, pl. a BGP \u00e9s az OSPF implement\u00e1ci\u00f3ja.<\/p>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter\"><a href=\"http:\/\/blog.xorp.hu\/wp-content\/uploads\/2012\/05\/openbsd_puffy1.jpg\"><img decoding=\"async\" src=\"http:\/\/blog.xorp.hu\/wp-content\/uploads\/2012\/05\/openbsd_puffy1.jpg\" alt=\"Puffy\" class=\"wp-image-6649\"\/><\/a><\/figure><\/div>\n\n\n\n<p class=\"wp-block-paragraph\">A&nbsp;<strong>NetBSD<\/strong>&nbsp;kb. a FreeBSD-vel egyszerre sz\u00fcletett (az OpenBSD a NetBSD fejleszt\u00e9sb\u0151l v\u00e1lt ki). Rengeteg architek\u00far\u00e1t t\u00e1mogat, egyszer\u0171, stabil, gyors rendszer. Ez \u00e9s a t\u00f6bbi k\u00e9t BSD OS haszn\u00e1lja a port treet, ami egy nagyszer\u0171 lehet\u0151s\u00e9g a csomagkezel\u00e9shez, de err\u0151l majd a k\u00e9s\u0151bbiekben. Jelenleg az 5.1.2-es verzi\u00f3n\u00e1l tart.<\/p>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter\"><a href=\"http:\/\/blog.xorp.hu\/wp-content\/uploads\/2012\/05\/netbsd.png\"><img decoding=\"async\" src=\"http:\/\/blog.xorp.hu\/wp-content\/uploads\/2012\/05\/netbsd.png\" alt=\"\" class=\"wp-image-6650\"\/><\/a><\/figure><\/div>\n\n\n\n<h2 class=\"wp-block-heading\">\u00d6sszegz\u00e9s<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Szem\u00e9lyes v\u00e9lem\u00e9nyem, hogy a BSD-like oper\u00e1ci\u00f3s rendszerek nagyon stabil \u00e9s kiforrott platformok. Az elm\u00falt \u00e9vekben a fejleszt\u0151k munk\u00e1ja eredm\u00e9nyek\u00e9ppen mind alkalmaz\u00e1s, mind hardver-t\u00e1mogatotts\u00e1gban az \u00e9len j\u00e1rnak. Egyedi megold\u00e1saik az egyszer\u0171s\u00e9get \u00e9s stabilit\u00e1st tartj\u00e1k szem el\u0151tt; ehhez hozz\u00e1j\u00e1rul kiv\u00e1l\u00f3 dokument\u00e1lts\u00e1guk is. Rendszeres id\u0151k\u00f6z\u00f6nk\u00e9nt a fejleszt\u0151k \u00fagynevezett \u201c<strong>hackaton<\/strong>-okat\u201d hirdetnek meg, ahol az \u00f6nk\u00e9ntes fejleszt\u0151k\u00f6z\u00f6ss\u00e9g a hib\u00e1k jav\u00edt\u00e1s\u00e1t, \u00faj featurek hozz\u00e1ad\u00e1s\u00e1t seg\u00edtheti el\u0151. Tapasztalatom szerint a BSD-s k\u00f6z\u00f6ss\u00e9g f\u00f3rumain is&nbsp; maxim\u00e1lis a seg\u00edt\u0151k\u00e9szs\u00e9g a f\u00f3rumtagokt\u00f3l. Szem\u00e9ly szerint a h\u00e1rom OS valamelyik\u00e9t sz\u00edvesen l\u00e1tn\u00e1m sz\u00e9lesebb k\u00f6rben haszn\u00e1lt szerverplatformk\u00e9nt, ak\u00e1r a Linux mellett, de ak\u00e1r azt kiv\u00e1ltva.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Az ezut\u00e1n megjelen\u0151 cikkekben ez a h\u00e1rom oper\u00e1ci\u00f3s rendszer ill. megold\u00e1sai \u00e9s lehet\u0151s\u00e9gei fognak szerepelni, konkr\u00e9t p\u00e9ld\u00e1kkal, screenshotokkal.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Ez az \u00edr\u00e1s szolg\u00e1ljon bevezet\u0151\u00fcl az ezut\u00e1n k\u00f6vetkez\u0151 cikkekhez, melyek a BSD oper\u00e1ci\u00f3s rendszerekr\u0151l, azok m\u0171k\u00f6dtet\u00e9s\u00e9r\u0151l \u00e9s v\u00e9g\u00fcl, de nem utols\u00f3sorban \u00e1ltalam \u00e9rdekesnek tartott megold\u00e1sokr\u00f3l fognak sz\u00f3lni, ahol sok-sok olvas\u00e1s \u00e9s k\u00eds\u00e9rletezget\u00e9s ut\u00e1n jutottam el a m\u0171k\u00f6d\u0151 megold\u00e1sokig.<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[4],"tags":[],"class_list":["post-254","post","type-post","status-publish","format-standard","hentry","category-blogpost"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 4.9.10 - aioseo.com -->\n\t<meta name=\"description\" content=\"Ez az \u00edr\u00e1s szolg\u00e1ljon bevezet\u0151\u00fcl az ezut\u00e1n k\u00f6vetkez\u0151 cikkekhez, melyek a BSD oper\u00e1ci\u00f3s rendszerekr\u0151l, azok m\u0171k\u00f6dtet\u00e9s\u00e9r\u0151l \u00e9s v\u00e9g\u00fcl, de nem utols\u00f3sorban \u00e1ltalam \u00e9rdekesnek tartott megold\u00e1sokr\u00f3l fognak sz\u00f3lni, ahol sok-sok olvas\u00e1s \u00e9s k\u00eds\u00e9rletezget\u00e9s ut\u00e1n jutottam el a m\u0171k\u00f6d\u0151 megold\u00e1sokig. Ezek mind m\u0171k\u00f6d\u0151 megold\u00e1sok, azonban az id\u0151 m\u00fal\u00e1s\u00e1val \u00e9s a verzi\u00f3k v\u00e1ltoz\u00e1s\u00e1val lehetnek k\u00fcl\u00f6nbs\u00e9gek, elt\u00e9r\u00e9sek a l\u00e9p\u00e9sek,\" \/>\n\t<meta name=\"robots\" content=\"max-image-preview:large\" \/>\n\t<meta name=\"author\" content=\"Tam\u00e1s\"\/>\n\t<link rel=\"canonical\" href=\"https:\/\/www.opencomp.hu\/?p=254\" \/>\n\t<meta name=\"generator\" content=\"All in One SEO (AIOSEO) 4.9.10\" \/>\n\t\t<meta property=\"og:locale\" content=\"hu_HU\" \/>\n\t\t<meta property=\"og:site_name\" content=\"Opencomp - IT \u00e9s PC megold\u00e1sok - professzion\u00e1lisan\" \/>\n\t\t<meta property=\"og:type\" content=\"article\" \/>\n\t\t<meta property=\"og:title\" content=\"A BSD-r\u0151l \u00e1ltal\u00e1ban - Opencomp\" \/>\n\t\t<meta property=\"og:description\" content=\"Ez az \u00edr\u00e1s szolg\u00e1ljon bevezet\u0151\u00fcl az ezut\u00e1n k\u00f6vetkez\u0151 cikkekhez, melyek a BSD oper\u00e1ci\u00f3s rendszerekr\u0151l, azok m\u0171k\u00f6dtet\u00e9s\u00e9r\u0151l \u00e9s v\u00e9g\u00fcl, de nem utols\u00f3sorban \u00e1ltalam \u00e9rdekesnek tartott megold\u00e1sokr\u00f3l fognak sz\u00f3lni, ahol sok-sok olvas\u00e1s \u00e9s k\u00eds\u00e9rletezget\u00e9s ut\u00e1n jutottam el a m\u0171k\u00f6d\u0151 megold\u00e1sokig. Ezek mind m\u0171k\u00f6d\u0151 megold\u00e1sok, azonban az id\u0151 m\u00fal\u00e1s\u00e1val \u00e9s a verzi\u00f3k v\u00e1ltoz\u00e1s\u00e1val lehetnek k\u00fcl\u00f6nbs\u00e9gek, elt\u00e9r\u00e9sek a l\u00e9p\u00e9sek,\" \/>\n\t\t<meta property=\"og:url\" content=\"https:\/\/www.opencomp.hu\/?p=254\" \/>\n\t\t<meta property=\"og:image\" content=\"https:\/\/www.opencomp.hu\/wp-content\/uploads\/2020\/03\/cropped-opencomp-8.png?fit=24070&#038;ssl=1\" \/>\n\t\t<meta property=\"og:image:secure_url\" content=\"https:\/\/www.opencomp.hu\/wp-content\/uploads\/2020\/03\/cropped-opencomp-8.png?fit=24070&#038;ssl=1\" \/>\n\t\t<meta property=\"article:published_time\" content=\"2012-05-21T06:18:05+00:00\" \/>\n\t\t<meta property=\"article:modified_time\" content=\"2020-03-25T09:17:53+00:00\" \/>\n\t\t<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n\t\t<meta name=\"twitter:title\" content=\"A BSD-r\u0151l \u00e1ltal\u00e1ban - Opencomp\" \/>\n\t\t<meta name=\"twitter:description\" content=\"Ez az \u00edr\u00e1s szolg\u00e1ljon bevezet\u0151\u00fcl az ezut\u00e1n k\u00f6vetkez\u0151 cikkekhez, melyek a BSD oper\u00e1ci\u00f3s rendszerekr\u0151l, azok m\u0171k\u00f6dtet\u00e9s\u00e9r\u0151l \u00e9s v\u00e9g\u00fcl, de nem utols\u00f3sorban \u00e1ltalam \u00e9rdekesnek tartott megold\u00e1sokr\u00f3l fognak sz\u00f3lni, ahol sok-sok olvas\u00e1s \u00e9s k\u00eds\u00e9rletezget\u00e9s ut\u00e1n jutottam el a m\u0171k\u00f6d\u0151 megold\u00e1sokig. Ezek mind m\u0171k\u00f6d\u0151 megold\u00e1sok, azonban az id\u0151 m\u00fal\u00e1s\u00e1val \u00e9s a verzi\u00f3k v\u00e1ltoz\u00e1s\u00e1val lehetnek k\u00fcl\u00f6nbs\u00e9gek, elt\u00e9r\u00e9sek a l\u00e9p\u00e9sek,\" \/>\n\t\t<meta name=\"twitter:image\" content=\"https:\/\/www.opencomp.hu\/wp-content\/uploads\/2020\/03\/cropped-opencomp-8.png?fit=24070&amp;ssl=1\" \/>\n\t\t<script type=\"application\/ld+json\" class=\"aioseo-schema\">\n\t\t\t{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"BlogPosting\",\"@id\":\"https:\\\/\\\/www.opencomp.hu\\\/?p=254#blogposting\",\"name\":\"A BSD-r\\u0151l \\u00e1ltal\\u00e1ban - Opencomp\",\"headline\":\"A BSD-r\\u0151l \\u00e1ltal\\u00e1ban\",\"author\":{\"@id\":\"https:\\\/\\\/www.opencomp.hu\\\/?author=1#author\"},\"publisher\":{\"@id\":\"https:\\\/\\\/www.opencomp.hu\\\/#person\"},\"image\":{\"@type\":\"ImageObject\",\"url\":\"http:\\\/\\\/blog.xorp.hu\\\/wp-content\\\/uploads\\\/2012\\\/05\\\/bsd-devilettes-300x225.jpg\",\"@id\":\"https:\\\/\\\/www.opencomp.hu\\\/?p=254\\\/#articleImage\"},\"datePublished\":\"2012-05-21T08:18:05+02:00\",\"dateModified\":\"2020-03-25T10:17:53+01:00\",\"inLanguage\":\"hu-HU\",\"mainEntityOfPage\":{\"@id\":\"https:\\\/\\\/www.opencomp.hu\\\/?p=254#webpage\"},\"isPartOf\":{\"@id\":\"https:\\\/\\\/www.opencomp.hu\\\/?p=254#webpage\"},\"articleSection\":\"blogpost\"},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\\\/\\\/www.opencomp.hu\\\/?p=254#breadcrumblist\",\"itemListElement\":[{\"@type\":\"ListItem\",\"@id\":\"https:\\\/\\\/www.opencomp.hu#listItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\\\/\\\/www.opencomp.hu\",\"nextItem\":{\"@type\":\"ListItem\",\"@id\":\"https:\\\/\\\/www.opencomp.hu\\\/?cat=4#listItem\",\"name\":\"blogpost\"}},{\"@type\":\"ListItem\",\"@id\":\"https:\\\/\\\/www.opencomp.hu\\\/?cat=4#listItem\",\"position\":2,\"name\":\"blogpost\",\"item\":\"https:\\\/\\\/www.opencomp.hu\\\/?cat=4\",\"nextItem\":{\"@type\":\"ListItem\",\"@id\":\"https:\\\/\\\/www.opencomp.hu\\\/?p=254#listItem\",\"name\":\"A BSD-r\\u0151l \\u00e1ltal\\u00e1ban\"},\"previousItem\":{\"@type\":\"ListItem\",\"@id\":\"https:\\\/\\\/www.opencomp.hu#listItem\",\"name\":\"Home\"}},{\"@type\":\"ListItem\",\"@id\":\"https:\\\/\\\/www.opencomp.hu\\\/?p=254#listItem\",\"position\":3,\"name\":\"A BSD-r\\u0151l \\u00e1ltal\\u00e1ban\",\"previousItem\":{\"@type\":\"ListItem\",\"@id\":\"https:\\\/\\\/www.opencomp.hu\\\/?cat=4#listItem\",\"name\":\"blogpost\"}}]},{\"@type\":\"Person\",\"@id\":\"https:\\\/\\\/www.opencomp.hu\\\/#person\",\"name\":\"Tam\\u00e1s\"},{\"@type\":\"Person\",\"@id\":\"https:\\\/\\\/www.opencomp.hu\\\/?author=1#author\",\"url\":\"https:\\\/\\\/www.opencomp.hu\\\/?author=1\",\"name\":\"Tam\\u00e1s\"},{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/www.opencomp.hu\\\/?p=254#webpage\",\"url\":\"https:\\\/\\\/www.opencomp.hu\\\/?p=254\",\"name\":\"A BSD-r\\u0151l \\u00e1ltal\\u00e1ban - Opencomp\",\"description\":\"Ez az \\u00edr\\u00e1s szolg\\u00e1ljon bevezet\\u0151\\u00fcl az ezut\\u00e1n k\\u00f6vetkez\\u0151 cikkekhez, melyek a BSD oper\\u00e1ci\\u00f3s rendszerekr\\u0151l, azok m\\u0171k\\u00f6dtet\\u00e9s\\u00e9r\\u0151l \\u00e9s v\\u00e9g\\u00fcl, de nem utols\\u00f3sorban \\u00e1ltalam \\u00e9rdekesnek tartott megold\\u00e1sokr\\u00f3l fognak sz\\u00f3lni, ahol sok-sok olvas\\u00e1s \\u00e9s k\\u00eds\\u00e9rletezget\\u00e9s ut\\u00e1n jutottam el a m\\u0171k\\u00f6d\\u0151 megold\\u00e1sokig. Ezek mind m\\u0171k\\u00f6d\\u0151 megold\\u00e1sok, azonban az id\\u0151 m\\u00fal\\u00e1s\\u00e1val \\u00e9s a verzi\\u00f3k v\\u00e1ltoz\\u00e1s\\u00e1val lehetnek k\\u00fcl\\u00f6nbs\\u00e9gek, elt\\u00e9r\\u00e9sek a l\\u00e9p\\u00e9sek,\",\"inLanguage\":\"hu-HU\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/www.opencomp.hu\\\/#website\"},\"breadcrumb\":{\"@id\":\"https:\\\/\\\/www.opencomp.hu\\\/?p=254#breadcrumblist\"},\"author\":{\"@id\":\"https:\\\/\\\/www.opencomp.hu\\\/?author=1#author\"},\"creator\":{\"@id\":\"https:\\\/\\\/www.opencomp.hu\\\/?author=1#author\"},\"datePublished\":\"2012-05-21T08:18:05+02:00\",\"dateModified\":\"2020-03-25T10:17:53+01:00\"},{\"@type\":\"WebSite\",\"@id\":\"https:\\\/\\\/www.opencomp.hu\\\/#website\",\"url\":\"https:\\\/\\\/www.opencomp.hu\\\/\",\"name\":\"Opencomp\",\"description\":\"IT \\u00e9s PC megold\\u00e1sok - professzion\\u00e1lisan\",\"inLanguage\":\"hu-HU\",\"publisher\":{\"@id\":\"https:\\\/\\\/www.opencomp.hu\\\/#person\"}}]}\n\t\t<\/script>\n\t\t<!-- All in One SEO -->\n\n","aioseo_head_json":{"title":"A BSD-r\u0151l \u00e1ltal\u00e1ban - Opencomp","description":"Ez az \u00edr\u00e1s szolg\u00e1ljon bevezet\u0151\u00fcl az ezut\u00e1n k\u00f6vetkez\u0151 cikkekhez, melyek a BSD oper\u00e1ci\u00f3s rendszerekr\u0151l, azok m\u0171k\u00f6dtet\u00e9s\u00e9r\u0151l \u00e9s v\u00e9g\u00fcl, de nem utols\u00f3sorban \u00e1ltalam \u00e9rdekesnek tartott megold\u00e1sokr\u00f3l fognak sz\u00f3lni, ahol sok-sok olvas\u00e1s \u00e9s k\u00eds\u00e9rletezget\u00e9s ut\u00e1n jutottam el a m\u0171k\u00f6d\u0151 megold\u00e1sokig. Ezek mind m\u0171k\u00f6d\u0151 megold\u00e1sok, azonban az id\u0151 m\u00fal\u00e1s\u00e1val \u00e9s a verzi\u00f3k v\u00e1ltoz\u00e1s\u00e1val lehetnek k\u00fcl\u00f6nbs\u00e9gek, elt\u00e9r\u00e9sek a l\u00e9p\u00e9sek,","canonical_url":"https:\/\/www.opencomp.hu\/?p=254","robots":"max-image-preview:large","keywords":"","webmasterTools":{"miscellaneous":""},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"BlogPosting","@id":"https:\/\/www.opencomp.hu\/?p=254#blogposting","name":"A BSD-r\u0151l \u00e1ltal\u00e1ban - Opencomp","headline":"A BSD-r\u0151l \u00e1ltal\u00e1ban","author":{"@id":"https:\/\/www.opencomp.hu\/?author=1#author"},"publisher":{"@id":"https:\/\/www.opencomp.hu\/#person"},"image":{"@type":"ImageObject","url":"http:\/\/blog.xorp.hu\/wp-content\/uploads\/2012\/05\/bsd-devilettes-300x225.jpg","@id":"https:\/\/www.opencomp.hu\/?p=254\/#articleImage"},"datePublished":"2012-05-21T08:18:05+02:00","dateModified":"2020-03-25T10:17:53+01:00","inLanguage":"hu-HU","mainEntityOfPage":{"@id":"https:\/\/www.opencomp.hu\/?p=254#webpage"},"isPartOf":{"@id":"https:\/\/www.opencomp.hu\/?p=254#webpage"},"articleSection":"blogpost"},{"@type":"BreadcrumbList","@id":"https:\/\/www.opencomp.hu\/?p=254#breadcrumblist","itemListElement":[{"@type":"ListItem","@id":"https:\/\/www.opencomp.hu#listItem","position":1,"name":"Home","item":"https:\/\/www.opencomp.hu","nextItem":{"@type":"ListItem","@id":"https:\/\/www.opencomp.hu\/?cat=4#listItem","name":"blogpost"}},{"@type":"ListItem","@id":"https:\/\/www.opencomp.hu\/?cat=4#listItem","position":2,"name":"blogpost","item":"https:\/\/www.opencomp.hu\/?cat=4","nextItem":{"@type":"ListItem","@id":"https:\/\/www.opencomp.hu\/?p=254#listItem","name":"A BSD-r\u0151l \u00e1ltal\u00e1ban"},"previousItem":{"@type":"ListItem","@id":"https:\/\/www.opencomp.hu#listItem","name":"Home"}},{"@type":"ListItem","@id":"https:\/\/www.opencomp.hu\/?p=254#listItem","position":3,"name":"A BSD-r\u0151l \u00e1ltal\u00e1ban","previousItem":{"@type":"ListItem","@id":"https:\/\/www.opencomp.hu\/?cat=4#listItem","name":"blogpost"}}]},{"@type":"Person","@id":"https:\/\/www.opencomp.hu\/#person","name":"Tam\u00e1s"},{"@type":"Person","@id":"https:\/\/www.opencomp.hu\/?author=1#author","url":"https:\/\/www.opencomp.hu\/?author=1","name":"Tam\u00e1s"},{"@type":"WebPage","@id":"https:\/\/www.opencomp.hu\/?p=254#webpage","url":"https:\/\/www.opencomp.hu\/?p=254","name":"A BSD-r\u0151l \u00e1ltal\u00e1ban - Opencomp","description":"Ez az \u00edr\u00e1s szolg\u00e1ljon bevezet\u0151\u00fcl az ezut\u00e1n k\u00f6vetkez\u0151 cikkekhez, melyek a BSD oper\u00e1ci\u00f3s rendszerekr\u0151l, azok m\u0171k\u00f6dtet\u00e9s\u00e9r\u0151l \u00e9s v\u00e9g\u00fcl, de nem utols\u00f3sorban \u00e1ltalam \u00e9rdekesnek tartott megold\u00e1sokr\u00f3l fognak sz\u00f3lni, ahol sok-sok olvas\u00e1s \u00e9s k\u00eds\u00e9rletezget\u00e9s ut\u00e1n jutottam el a m\u0171k\u00f6d\u0151 megold\u00e1sokig. Ezek mind m\u0171k\u00f6d\u0151 megold\u00e1sok, azonban az id\u0151 m\u00fal\u00e1s\u00e1val \u00e9s a verzi\u00f3k v\u00e1ltoz\u00e1s\u00e1val lehetnek k\u00fcl\u00f6nbs\u00e9gek, elt\u00e9r\u00e9sek a l\u00e9p\u00e9sek,","inLanguage":"hu-HU","isPartOf":{"@id":"https:\/\/www.opencomp.hu\/#website"},"breadcrumb":{"@id":"https:\/\/www.opencomp.hu\/?p=254#breadcrumblist"},"author":{"@id":"https:\/\/www.opencomp.hu\/?author=1#author"},"creator":{"@id":"https:\/\/www.opencomp.hu\/?author=1#author"},"datePublished":"2012-05-21T08:18:05+02:00","dateModified":"2020-03-25T10:17:53+01:00"},{"@type":"WebSite","@id":"https:\/\/www.opencomp.hu\/#website","url":"https:\/\/www.opencomp.hu\/","name":"Opencomp","description":"IT \u00e9s PC megold\u00e1sok - professzion\u00e1lisan","inLanguage":"hu-HU","publisher":{"@id":"https:\/\/www.opencomp.hu\/#person"}}]},"og:locale":"hu_HU","og:site_name":"Opencomp - IT \u00e9s PC megold\u00e1sok - professzion\u00e1lisan","og:type":"article","og:title":"A BSD-r\u0151l \u00e1ltal\u00e1ban - Opencomp","og:description":"Ez az \u00edr\u00e1s szolg\u00e1ljon bevezet\u0151\u00fcl az ezut\u00e1n k\u00f6vetkez\u0151 cikkekhez, melyek a BSD oper\u00e1ci\u00f3s rendszerekr\u0151l, azok m\u0171k\u00f6dtet\u00e9s\u00e9r\u0151l \u00e9s v\u00e9g\u00fcl, de nem utols\u00f3sorban \u00e1ltalam \u00e9rdekesnek tartott megold\u00e1sokr\u00f3l fognak sz\u00f3lni, ahol sok-sok olvas\u00e1s \u00e9s k\u00eds\u00e9rletezget\u00e9s ut\u00e1n jutottam el a m\u0171k\u00f6d\u0151 megold\u00e1sokig. Ezek mind m\u0171k\u00f6d\u0151 megold\u00e1sok, azonban az id\u0151 m\u00fal\u00e1s\u00e1val \u00e9s a verzi\u00f3k v\u00e1ltoz\u00e1s\u00e1val lehetnek k\u00fcl\u00f6nbs\u00e9gek, elt\u00e9r\u00e9sek a l\u00e9p\u00e9sek,","og:url":"https:\/\/www.opencomp.hu\/?p=254","og:image":"https:\/\/www.opencomp.hu\/wp-content\/uploads\/2020\/03\/cropped-opencomp-8.png?fit=24070&#038;ssl=1","og:image:secure_url":"https:\/\/www.opencomp.hu\/wp-content\/uploads\/2020\/03\/cropped-opencomp-8.png?fit=24070&#038;ssl=1","article:published_time":"2012-05-21T06:18:05+00:00","article:modified_time":"2020-03-25T09:17:53+00:00","twitter:card":"summary_large_image","twitter:title":"A BSD-r\u0151l \u00e1ltal\u00e1ban - Opencomp","twitter:description":"Ez az \u00edr\u00e1s szolg\u00e1ljon bevezet\u0151\u00fcl az ezut\u00e1n k\u00f6vetkez\u0151 cikkekhez, melyek a BSD oper\u00e1ci\u00f3s rendszerekr\u0151l, azok m\u0171k\u00f6dtet\u00e9s\u00e9r\u0151l \u00e9s v\u00e9g\u00fcl, de nem utols\u00f3sorban \u00e1ltalam \u00e9rdekesnek tartott megold\u00e1sokr\u00f3l fognak sz\u00f3lni, ahol sok-sok olvas\u00e1s \u00e9s k\u00eds\u00e9rletezget\u00e9s ut\u00e1n jutottam el a m\u0171k\u00f6d\u0151 megold\u00e1sokig. Ezek mind m\u0171k\u00f6d\u0151 megold\u00e1sok, azonban az id\u0151 m\u00fal\u00e1s\u00e1val \u00e9s a verzi\u00f3k v\u00e1ltoz\u00e1s\u00e1val lehetnek k\u00fcl\u00f6nbs\u00e9gek, elt\u00e9r\u00e9sek a l\u00e9p\u00e9sek,","twitter:image":"https:\/\/www.opencomp.hu\/wp-content\/uploads\/2020\/03\/cropped-opencomp-8.png?fit=24070&ssl=1"},"aioseo_meta_data":{"post_id":"254","title":null,"description":null,"keywords":null,"keyphrases":null,"primary_term":null,"canonical_url":null,"og_title":null,"og_description":null,"og_object_type":"default","og_image_type":"default","og_image_url":null,"og_image_width":null,"og_image_height":null,"og_image_custom_url":null,"og_image_custom_fields":null,"og_video":null,"og_custom_url":null,"og_article_section":null,"og_article_tags":null,"twitter_use_og":false,"twitter_card":"default","twitter_image_type":"default","twitter_image_url":null,"twitter_image_custom_url":null,"twitter_image_custom_fields":null,"twitter_title":null,"twitter_description":null,"schema":{"blockGraphs":[],"customGraphs":[],"default":{"data":{"Article":[],"Course":[],"Dataset":[],"FAQPage":[],"Movie":[],"Person":[],"Product":[],"ProductReview":[],"Car":[],"Recipe":[],"Service":[],"SoftwareApplication":[],"WebPage":[]},"graphName":"","isEnabled":true},"graphs":[]},"schema_type":"default","schema_type_options":null,"pillar_content":false,"robots_default":true,"robots_noindex":false,"robots_noarchive":false,"robots_nosnippet":false,"robots_nofollow":false,"robots_noimageindex":false,"robots_noodp":false,"robots_notranslate":false,"robots_max_snippet":null,"robots_max_videopreview":null,"robots_max_imagepreview":"large","priority":null,"frequency":null,"local_seo":null,"breadcrumb_settings":null,"limit_modified_date":false,"ai":null,"created":"2023-01-05 19:01:19","updated":"2025-06-04 06:26:57","seo_analyzer_scan_date":null},"aioseo_breadcrumb":"<div class=\"aioseo-breadcrumbs\"><span class=\"aioseo-breadcrumb\">\n\t\t\t<a href=\"https:\/\/www.opencomp.hu\" title=\"Home\">Home<\/a>\n\t\t<\/span><span class=\"aioseo-breadcrumb-separator\">&raquo;<\/span><span class=\"aioseo-breadcrumb\">\n\t\t\t<a href=\"https:\/\/www.opencomp.hu\/?cat=4\" title=\"blogpost\">blogpost<\/a>\n\t\t<\/span><span class=\"aioseo-breadcrumb-separator\">&raquo;<\/span><span class=\"aioseo-breadcrumb\">\n\t\t\tA BSD-r\u0151l \u00e1ltal\u00e1ban\n\t\t<\/span><\/div>","aioseo_breadcrumb_json":[{"label":"Home","link":"https:\/\/www.opencomp.hu"},{"label":"blogpost","link":"https:\/\/www.opencomp.hu\/?cat=4"},{"label":"A BSD-r\u0151l \u00e1ltal\u00e1ban","link":"https:\/\/www.opencomp.hu\/?p=254"}],"_links":{"self":[{"href":"https:\/\/www.opencomp.hu\/index.php?rest_route=\/wp\/v2\/posts\/254","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.opencomp.hu\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.opencomp.hu\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.opencomp.hu\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.opencomp.hu\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=254"}],"version-history":[{"count":5,"href":"https:\/\/www.opencomp.hu\/index.php?rest_route=\/wp\/v2\/posts\/254\/revisions"}],"predecessor-version":[{"id":263,"href":"https:\/\/www.opencomp.hu\/index.php?rest_route=\/wp\/v2\/posts\/254\/revisions\/263"}],"wp:attachment":[{"href":"https:\/\/www.opencomp.hu\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=254"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.opencomp.hu\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=254"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.opencomp.hu\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=254"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}