{"id":4330,"date":"2020-10-30T20:34:18","date_gmt":"2020-10-30T19:34:18","guid":{"rendered":"https:\/\/webhosting.de\/cdn-fuer-wordpress-einrichten\/"},"modified":"2020-11-03T20:27:55","modified_gmt":"2020-11-03T19:27:55","slug":"cdn-for-wordpress-set-up","status":"publish","type":"post","link":"https:\/\/webhosting.de\/da\/cdn-fuer-wordpress-einrichten\/","title":{"rendered":"Opret CDN til WordPress"},"content":{"rendered":"

N\u00e5r det drejer sig om at f\u00e5 mere ud af WordPress<\/a> Hvis du vil have mest muligt ud af dit websted, er det ikke nok at installere et flot WordPress-tema og begynde at skrive. Takket v\u00e6re de mange WordPress plugins kan WordPress ikke kun udvides med mange funktioner, men ogs\u00e5 indl\u00e6sningstiden kan reduceres betydeligt.<\/p>\n

Som CDN<\/a> er betegnelsen for et netv\u00e6rk af regionalt distribuerede servere, der bruges til at outsource store mediefiler (videoer, billeder, scripts). Med hensyn til Youtube kan man f.eks. tale om et CDN, da videoerne er fordelt p\u00e5 mange servere verden over og stilles til r\u00e5dighed via et indholdsleveringsnetv\u00e6rk (CDN).<\/p>\n

CDN-princippet anvendes dog ikke kun for videoer, men ogs\u00e5 i forbindelse med filer<\/strong>som kan leveres ved hj\u00e6lp af et cache-system. Dette g\u00e6lder bl.a. JPG-, GIF-, JavaScript- og HTML-filer. For at filerne ikke skal downloades fra din egen server, kan de ogs\u00e5 gemmes i CDN'en, hvilket sparer trafik og sk\u00e5ner serverens ressourcer, samtidig med at du maksimerer antallet af samtidige foresp\u00f8rgsler fra browseren.<\/p>\n

Ops\u00e6tning af CDN - de f\u00f8rste trin<\/h2>\n

For at kunne oprette dit eget CDN skal du foretage nogle forberedelser p\u00e5 forh\u00e5nd. Som i de fleste tilf\u00e6lde er det ogs\u00e5 her vigtigt at kende sin egen Websted<\/a> herunder SQL-databasen, for hvis noget g\u00e5r galt eller ikke fungerer som \u00f8nsket, kan den gamle status for WordPress-webstedet nemt genoprettes med sikkerhedskopien.<\/p>\n

For at sikre, at CDN'en til WordPress-webstedet fungerer problemfrit, og at der ikke er nogen st\u00f8rre nedetid, skal der indhentes nogle oplysninger p\u00e5 forh\u00e5nd<\/strong>.<\/p>\n

Disse omfatter oprettelse af underdom\u00e6net, fastl\u00e6ggelse af den absolutte serversti for underdom\u00e6net, flytning af mediebiblioteksfilerne til underdom\u00e6net, opdatering af SQL-databasen p\u00e5 WordPress-webstedet, justering af WordPress-indstillingerne og information til s\u00f8gemaskinerne om den \u00e6ndrede struktur.<\/p>\n

Fordele ved et CDN\"CDN\"<\/a><\/h2>\n

Is\u00e6r websteder med stort indhold har stor gavn af et indholdsleveringsnetv\u00e6rk. Men mindre WordPress-websteder kan ogs\u00e5 drage fordel af fordelene ved denne teknologi. Fordelene ved et CDN ligger i den reducerede svartid.<\/strong>som f\u00f8lge af den reducerede afstand mellem den bes\u00f8gende og serveren.<\/p>\n

Hertil kommer besparelsen af trafik p\u00e5 hovedserveren, da st\u00f8rstedelen af trafikken foreg\u00e5r via CDN'en og dermed den store aflastning af egen server samt muligheden for load sharing.<\/p>\n

Forskellige muligheder<\/h2>\n

Hvis der skal bruges et CDN, skal man altid v\u00e6re opm\u00e6rksom p\u00e5, at der er to forskellige muligheder for at bruge CDN'et. Den f\u00f8rste mulighed kaldes Customer Origin, hvor alle data forbliver p\u00e5 udbyderens egen server, og hvor udbyderen automatisk synkroniserer dem med alle sine servere i hele verden.<\/p>\n

Den store fordel her er, at dataene ikke skal kopieres til nogen steder, og at der ikke skal foretages nogen \u00e6ndringer i WordPress.<\/p>\n

Den anden variant kaldes CDN-lagring, hvor alle data, der skal leveres med CDN'et, er placeret p\u00e5 den p\u00e5g\u00e6ldende udbyders lagerplads.<\/strong>.<\/p>\n

Den ekstra lagring er normalt mod betaling, og man skal s\u00f8rge for, at de data, der skal leveres, altid overf\u00f8res til CDN-lageret. WordPress tilbyder forskellige plugins til dette form\u00e5l.<\/p>\n

Brug CDN gratis<\/h2>\n

Cloudflare tilbyder flere muligheder for at bruge et CDN gratis. Som en komplet l\u00f8sning til websikkerhed og hastighedsoptimering kan tjenesten nemt bruges som et CDN.<\/p>\n

Du skal blot installere et nyt dom\u00e6ne gratis p\u00e5 tjenesten og rette DNS-posten til serverens IP-nummer. Alle links til de statiske filer p\u00e5 det nye dom\u00e6ne kan derefter \u00e6ndres.<\/p>\n

Fra da af Cloudflare<\/a> alt statisk indhold gratis, uden skjulte omkostninger eller begr\u00e6nsninger<\/strong>. Mange Webhost<\/a> tilbyder ogs\u00e5 Cloudflare gratis i pakkerne. Derudover har du Cloudflare Web Application. Firewall<\/a> og forskellige professionelle funktioner, som ellers kun er inkluderet i business-versionen.<\/p>","protected":false},"excerpt":{"rendered":"

Wenn es darum geht, mehr aus der WordPress Seite herauszuholen, gen\u00fcgt es nicht ein nettes WordPress-Theme zu installieren und drauf los zu schreiben. Dank zahlreicher WordPress-Plugins kann nicht nur WordPress um viele Funktionen erweitert, sondern auch die Ladezeit deutlich verk\u00fcrzt werden. Als CDN wird ein Netzerk regional verteilter Server bezeichnet, das dazu genutzt wird, gro\u00dfe 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