Unable to connect to LDAP in MVC(without using active directory)

See more:

LDAP

MVC4

I want to connect to LDAP server using my MVC application.I don't want to use active directory. Here is my post method when I get usename and password from user:

<pre lang="c#">  [HttpPost]
        public ActionResult Login(Login model, string returnUrl)
        {
            string pwd = model.password;
            System.Security.Cryptography.MD5 hs = System.Security.Cryptography.MD5.Create();
            byte[] db = hs.ComputeHash(System.Text.Encoding.UTF8.GetBytes(pwd));
            string result = Convert.ToBase64String(db);
            var BuildServerName = new StringBuilder();
            BuildServerName.Append("172.16.1.98");


        // setup an ldapconnection to that endpoint
        var ldapConnection = new LdapConnection(BuildServerName.ToString());

        // it looks like you have an administrative account to bind with, so use that here
        var networkCredential = new NetworkCredential(model.username, result, "dc=mnit,dc=ac,dc=in");

        // set the following to true if it's over ssl (636), if not just set it to false

        ldapConnection.SessionOptions.VerifyServerCertificate += delegate { return true; };

        // now set your auth type - I typically use 'negotiate' over LDAPS, and `simple` over LDAP
        // for this example we'll just say you're not using LDAPS
        ldapConnection.AuthType = AuthType.Basic;

        ldapConnection.SessionOptions.ProtocolVersion = 3;
        ldapConnection.Bind(networkCredential);

It throws an error at

ldapConnection.Bind(networkCredential);

which is: The distinguished name contains invalid syntax. What should I do in this?

What I have tried:

When I change

BuildServerName.Append("172.16.1.98");

to

BuildServerName.Append("LDAP://172.16.1.98");

it returns error

The LDAP server is unavailable.
at

ldapConnection.Bind(networkCredential);

. Is there any other way to connect and check username and password through ldap.