LDAP connection in C#

Question

I am new to LDAP. I am trying to connect to LDAP using my certificate credentials and no user name and password. The code i am using is

    LdapConnection ldapConnection = new LdapConnection(new LdapDirectoryIdentifier("ldap://192.168.10.5:636"));
    ldapConnection.AuthType = AuthType.Anonymous;
    LdapSessionOptions options = ldapConnection.SessionOptions;
    options.SecureSocketLayer = true;
    options.ProtocolVersion = 3;
    X509Certificate cert = new X509Certificate();
    cert.Import(@"c:\certfolder\mycert.crt");
    ldapConnection.ClientCertificates.Add(cert);
    ldapConnection.Bind();

The above code is giving me error "The LDAP server is unavailable" when compiler tries to run line ldapConnection.Bind();.

When i place a breakpoint at line1 it gives the following error. base{system.DirectoryService.Protocols.DirectroyException}{"The server cannot handle directory request."}

Try without prefix since LdapDirectoryIdentifier is made only for Ldap so it might be causing the problem. — MajkeloDev, Dec 15 '14 at 10:13
If won't help give me a comments I'll try your code and will find an issue. — MajkeloDev, Dec 15 '14 at 10:14
@MajkeloDev I have tried without "LDAP" just the "192.168.10.5:636" still giving me the same error. — user3202862, Dec 15 '14 at 10:17

score 0 · Answer 1 · edited Jun 09 '20 at 05:40

0

Same code without prefix worked for me.

LdapConnection nconnection = new LdapConnection(new LdapDirectoryIdentifier(LDAPurl, LDAPPort));

or

LdapConnection nconnection = new LdapConnection(new LdapDirectoryIdentifier("localhost:10636"));

Both are working fine.

edited Jun 09 '20 at 05:40

Yunnosch

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answered Jun 09 '20 at 04:37

swathi

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LDAP connection in C#

1 Answers1