{"id":4239,"date":"2020-10-30T21:15:43","date_gmt":"2020-10-30T20:15:43","guid":{"rendered":"https:\/\/webhosting.de\/?p=4239"},"modified":"2020-10-30T21:15:43","modified_gmt":"2020-10-30T20:15:43","slug":"http-status-koder-vad-betyder-de","status":"publish","type":"post","link":"https:\/\/webhosting.de\/sv\/http-status-codes-was-bedeuten-sie\/","title":{"rendered":"HTTP-statuskoder - vad betyder de?"},"content":{"rendered":"

Varje dag anv\u00e4nder miljontals m\u00e4nniskor internet f\u00f6r alla m\u00f6jliga saker. I regel skriver vi in en Internetadress eller URL och f\u00e5r v\u00e5r Webbplats<\/a>. Ibland uppst\u00e5r dock ett fel. Webbsidan visas inte och en statuskod som anger felet visas. M\u00e5nga anv\u00e4ndare f\u00f6rst\u00e5r dock inte inneb\u00f6rden av dessa koder, \u00e4ven om de s\u00e4ger mycket om vad som h\u00e4nde.<\/p>\n

Vad exakt \u00e4r HTTP-statuskoder?<\/h2>\n

En HTTP-statuskod \u00e4r en kod som utf\u00e4rdas av en webbserver till webbl\u00e4saren f\u00f6r att \u00f6verf\u00f6ra viss information. Koderna anv\u00e4nds huvudsakligen f\u00f6r att tala om f\u00f6r webbl\u00e4saren hur den ska hantera en beg\u00e4ran eller f\u00f6r att ge feedback om en beg\u00e4ran. Den vanliga anv\u00e4ndaren m\u00e4rker vanligtvis en s\u00e5dan statuskod n\u00e4r n\u00e5got inte fungerar. En av de mest k\u00e4nda statuskoderna \u00e4r Error 404 - Page not found. Statuskoden utf\u00e4rdas dock inte bara vid fel. \u00c4ven n\u00e4r en operation lyckades, en anv\u00e4ndare omdirigeras eller n\u00e4r en m\u00e4ngd andra handlingar och \u00e5tg\u00e4rder utf\u00f6rs p\u00e5 servern \u00f6verf\u00f6rs dessa till webbl\u00e4saren som en del av statuskoderna. I de flesta fall kommer du som vanlig anv\u00e4ndare dock inte att m\u00e4rka n\u00e5got av detta.<\/p>\n

Grupper av statuskoder<\/h3>\n

Alla HTTP-statuskoder \u00e4r indelade i totalt sex grupper, som \u00e4r numrerade fr\u00e5n ett till sex och nio och som var och en h\u00e4nvisar till en specifik kategori av meddelanden. I allm\u00e4nhet f\u00f6rdelas grupperna p\u00e5 f\u00f6ljande s\u00e4tt:<\/p>\n

* 1xx utg\u00e5ngar allm\u00e4n information
\n* 2xx inneh\u00e5ller koderna f\u00f6r lyckade operationer.
\n* 3xx inneh\u00e5ller koder f\u00f6r omdirigeringar och vidarebefordringar.
\n* 4xx ansvarar f\u00f6r klientfel
\n* 5xx \u00e4r ansvarig f\u00f6r serverfel
\n* 9xx ger upphov till propriet\u00e4ra fel<\/p>\n

Dessa sex grupper inneh\u00e5ller alla statuskoder f\u00f6r HTTP-protokollet. Varje grupp inneh\u00e5ller olika antal koder som anger en viss situation, ett visst tillst\u00e5nd eller en viss status.<\/p>\n

The 1xx Group - Allm\u00e4n information<\/h3>\n

Denna grupp omfattar tre statuskoder, n\u00e4mligen statuskoderna 100, 101 och 102. Dessa koder \u00e4r avsedda f\u00f6r allm\u00e4n information och tips. Kod 100 returnerar till exempel ett Continue-kommando till webbl\u00e4saren och talar om f\u00f6r den att den kan forts\u00e4tta med en potentiellt stor och servertung beg\u00e4ran. Kod 101 \u00e5 andra sidan talar om f\u00f6r webbl\u00e4saren att den byter protokoll, t.ex. fr\u00e5n HTTP till FTP osv. Slutligen st\u00e5r 102 f\u00f6r Processing (bearbetning) och talar om f\u00f6r webbl\u00e4saren att beg\u00e4ran fortfarande behandlas aktivt. P\u00e5 detta s\u00e4tt f\u00f6rhindras timeout. Koderna i den h\u00e4r kategorin anv\u00e4nds enbart f\u00f6r kommunikation med webbl\u00e4saren, s\u00e5 du kommer normalt inte att m\u00e4rka n\u00e5gon av dem.<\/p>\n

The 2xx Group - framg\u00e5ngsrik verksamhet<\/h3>\n

Dessa koder \u00e4r rena informationsutg\u00e5ngar. Statuserna i den h\u00e4r kategorin ger enkel \u00e5terkoppling, t.ex. OK, att ett formul\u00e4r skickades in eller att en sida avsiktligt inte inneh\u00e5ller n\u00e5got inneh\u00e5ll. I de flesta fall f\u00e5r du som vanlig anv\u00e4ndare ingenting av dessa koder och beh\u00f6ver dem inte.<\/p>\n

3xx-gruppen - Omdirigeringar<\/h3>\n

Gruppen med 300 koder handlar uteslutande om omdirigeringar. De inneh\u00e5ller \u00e5terkoppling, till exempel f\u00f6r permanent omdirigering, proxyanv\u00e4ndning osv. De anv\u00e4nds fr\u00e4mst f\u00f6r att g\u00f6ra webbl\u00e4saren medveten om dessa omdirigeringar och f\u00f6r att peka p\u00e5 r\u00e4tt URL eller s\u00f6kv\u00e4g. Som anv\u00e4ndare f\u00e5r du vanligtvis inte heller mycket eller ingenting ut av statuskoderna i denna grupp.<\/p>\n

Gruppen 4xx - Klientfel<\/h3>\n

Gruppen 400 \u00e4r den f\u00f6rsta gruppen som behandlar aktuella felmeddelanden. I det h\u00e4r fallet handlar det om klientfel, dvs. problem som orsakas av klienten, dvs. webbl\u00e4saren, eller fel som utl\u00f6ses av klienten. Det finns m\u00e5nga olika felkoder, men den vanliga anv\u00e4ndaren m\u00f6ter vanligtvis tre koder fr\u00e5n denna grupp, n\u00e4mligen 400, 403 och 404.<\/p>\n

Felet 400 - Bad Request st\u00e5r f\u00f6r en felaktig beg\u00e4ran. H\u00e4r har webbl\u00e4saren beg\u00e4rt en funktion eller en sida. Beg\u00e4ran var dock felaktigt strukturerad och kunde d\u00e4rf\u00f6r inte utf\u00f6ras av servern. Du kommer ocks\u00e5 ofta att se fel 403 - inte till\u00e5tet. Det h\u00e4r felet uppst\u00e5r alltid n\u00e4r du g\u00e5r till en webbplats som du inte har tillg\u00e5ng till. Om du till exempel vill komma \u00e5t en serverkatalog utan att ha r\u00e4tt beh\u00f6righet eller om du anger fel autentiseringsuppgifter i en .htaccess-fr\u00e5ga f\u00e5r du det h\u00e4r felmeddelandet. Det \u00f6verl\u00e4gset vanligaste felet \u00e4r fel 404 - inte hittat. N\u00e4r du g\u00e5r in p\u00e5 en ogiltig eller felaktig webbsida f\u00e5r du fel 404 som svar.<\/p>\n

The 5xx Group - Serverfel<\/h3>\n

Om gruppen 400 st\u00e5r f\u00f6r klientfel, dvs. fel som orsakas av webbl\u00e4saren, st\u00e5r gruppen 500 f\u00f6r motsatsen. Den returnerar felmeddelanden som utl\u00f6sts av servern eller orsakats av servern. Det mest k\u00e4nda felet \u00e4r f\u00f6rmodligen Error 500 - Internal Server Error. Detta \u00e4r ett samlat felmeddelande f\u00f6r en rad serverfel som inte har n\u00e5gon egen kod och som inte specificeras n\u00e4rmare. Andra vanliga serverfel \u00e4r fel 502 Bad Gateway, t.ex. om en d\u00e5lig proxy anv\u00e4nds eller om vidarebefordran misslyckas, och fel 503 Service Unavailable, om en server \u00e4r tillf\u00e4lligt otillg\u00e4nglig, t.ex. p\u00e5 grund av underh\u00e5llsarbete. Ibland f\u00e5r du ocks\u00e5 ett fel 504 Gateway Timeout, som visar att anslutningen har avbrutits p\u00e5 grund av en timeout. S\u00e4rskilt p\u00e5 viktiga webbplatser eller med specialerbjudanden kommer du ocks\u00e5 oftare att st\u00f6ta p\u00e5 fel 509 - Bandbreddsgr\u00e4nsen \u00f6verskrids. Meddelandet anger att beg\u00e4ran avbr\u00f6ts eftersom det annars skulle ha varit Bandbredd<\/a> av servern skulle ha \u00f6verskridits.<\/p>\n

Gruppen 9xx - propriet\u00e4ra statusmeddelanden<\/h3>\n

Gruppen 900 \u00e4r helt reserverad f\u00f6r egna, s\u00e5 kallade propriet\u00e4ra felmeddelanden. Den \u00e4r avsedd f\u00f6r server Administrat\u00f6rer<\/a> och webmasters att utveckla och anv\u00e4nda sina egna felmeddelanden och statuskoder. D\u00e4rf\u00f6r kan anv\u00e4ndningen av statusen variera fr\u00e5n server till server och fr\u00e5n konfiguration till konfiguration. En f\u00f6rklaring av koderna eller ett uttalande om vilka koder som anv\u00e4nds kan d\u00e4rf\u00f6r inte heller g\u00f6ras.<\/p>","protected":false},"excerpt":{"rendered":"

T\u00e4glich wird das Internet von Millionen von Menschen f\u00fcr alle m\u00f6glichen Dinge genutzt. In der Regel geben wir dabei eine Internetadresse oder URL ein und erhalten unsere Webseite. Manchmal kommt es jedoch zu einem Fehler. Die Webseite wird nicht angezeigt und ein Status Code wird ausgegeben, der auf den Fehler hinweist. Vielen Usern ist jedoch 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