CODEWITHSUNDEEP
c#active-directoryldap
Tamir
Tamir

Reputation: 3921

Error while trying to connect AD using LDAP connection

Trying to use this code to connect the AD

PrincipalContext context = new PrincipalContext(ContextType.Domain, domain)

but i got the error saying:

The LDAP server is unavailable.

Any idea?

Upvotes: 10

Views: 12318

Answers (2)

CompanyDroneFromSector7G
CompanyDroneFromSector7G

Reputation: 4527

I had the same problem.

Mine was because the webserver was not on the same domain as the user.

I resolved it by ignoring the error; this then forced an authentication challenge which enabled the user to supply credentials, which I could pick up the correct domain from.

Upvotes: 0

marc_s
marc_s

Reputation: 755321

The questions is: do you specify our domain as

  • "mydomain.com" (DNS format)
  • or as "dc=mydomain,dc=com" (AD-style format)

To my surprise, the Domain name must be in DNS format (e.g. "mydomain.com") in order for this to work (and NOT in the usual AD-style format of "dc=mydomain,dc=com").

Upvotes: 16

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