> For the complete documentation index, see [llms.txt](https://docs.devolutions.net/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.devolutions.net/server/da/knowledge-base/knowledge-base-articles/x-forwarded-for.md).

# X-Forwarded-For

Forklarer indstillingen Use X-Forwarded-For i Devolutions Server, som lader IIS videresende den oprindelige opkalders IP-adresse bag en belastningsfordeler.

Indstillingen ***Use X-Forwarded-For***, som findes i webgrænsefladen for Devolutions Server under ***Administration – Serverindstillinger – Sikkerhed***, blev indført for at løse et sikkerhedsproblem med Devolutions Server bag en belastningsfordeler. Serveren kunne kun se den opkalder, der lå direkte foran den.

Da indstillingen først blev implementeret, var den aktiveret som standard for at give bagudkompatibilitet med brugere, der allerede brugte belastningsfordelere. Siden Devolutions Server 2023.3 er den dog deaktiveret som standard for nye installationer af Devolutions Server. Ved nye installationer, der bruger en belastningsfordeler, skal De derfor aktivere indstillingen manuelt under ***Administration – Serverindstillinger – Sikkerhed***. Der kræves ingen handling for eksisterende installationer.

Når indstillingen er aktiveret, føjes headeren [X-Forwarded-For](https://en.wikipedia.org/wiki/X-Forwarded-For) til anmodningen af IIS (det virker ikke med Kestrel). Hver mellemliggende node føjer identiteten på den oprindelige opkalder til anmodningens header og bliver ved med at tilføje sin opkalder til den næste. Den sidste node ser derfor ikke kun den oprindelige opkalder, men også hvilke noder der var indblandet før den.


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