Error Code: 403 Forbidden. ISA Server is configured to block HTTP requests that require authentication. (12250)

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Web publishing rule ile ISA/TMG üzerinde publish edilmis bir http web site’ a ulasmaya çalistigimizda asagidaki hatayi aliyorsak ve No delegation, but client may authenticate directly (pass-through) authentication metodunu kullaniyorsak;

Error Code: 403 Forbidden. ISA Server is configured to block HTTP requests that require authentication. (12250)

“Allow client authentication over HTTP” check box’ inin, Web listener -> Advanced Authentication Options kisminda isaretli oldugundan emin olunuz.

Ilgili makale: http://support.microsoft.com/kb/924374/en-us