I'm a total newbie to this
Trying to connect to an ldap server with PrincipalContext. I have tried all solutions on this site to no avail.
Things I've tried:
PrincipalContext insPrincipalContext =
new PrincipalContext(ContextType.Domain);
PrincipalContext insPrincipalContext =
new PrincipalContext(ContextType.Domain, "ldap://localhost:389/dc=maxcrc,dc=com");
PrincipalContext insPrincipalContext =
new PrincipalContext(ContextType.Domain, "maxcrc.com");
All give the same result:
LDAP server not available
Only ContextType.Machine works basically.
Not sure if my LDAP server is set up correctly:
Host: localhost
Port: 389
Base DN: dc=maxcrc,dc=com
URL: ldap://localhost:389/dc=maxcrc,dc=com
Testing with Softerra LDAP Browser
Any tutorials from start to finish will be much appreciated...
I have been facing the same issue and I found a solution.
I'm able to connect easily using following code:
ADUser_Id = "domainName\\username"; //make sure user name has domain name.
Password = "xxxx";
var context = new PrincipalContext(ContextType.Domain,"server_address", ADUser_Id,Password);
/* server_address = "192.168.15.36"; //don't include ldap in url */
I had similar issues. It turned out that I had to pass username and password in the object initialization. Please try using a statement like below:
PrincipalContext insPrincipalContext =
new PrincipalContext(ContextType.Domain,
"ldap://localhost:389/dc=maxcrc,dc=com",
userName,
password);
Also make sure that your username has domain in it.
For example,
userName = "mydomainname" + "\\" + "john_jacobs"
Use the following constructor overload for PrincipalContext:
public PrincipalContext(
ContextType contextType,
string name,
string container
)
And separate the server name from the LDAP string:
PrincipalContext insPrincipalContext =
new PrincipalContext(ContextType.Domain, "localhost:389", "dc=maxcrc,dc=com");
https://msdn.microsoft.com/en-us/library/bb348316%28v=vs.110%29.aspx
In my environment I had to create the principal context with just the domain controller host name, and then separately validate the user credentials.
string domainControllerName = "PDC";
string domainName = "MyDomain"; // leave out the .Local, this is just to use as the prefix for the username if the user left it off or didn't use the principal address notation
string username = "TestUser";
string password = "password";
using (var ldap = new PrincipalContext(ContextType.Domain, domainControllerName))
{
var usernameToValidate = username;
if (!usernameToValidate.Any(c => c == '#' || c == '\\'))
usernameToValidate = $"{domainName}\\{username}";
if (!ldap.ValidateCredentials(username, context.Password, ContextOptions.SimpleBind))
throw new UnauthorizedException();
}
This example allows for all three of these variations to the username to validate:
TestUser
MyDomain\TestUser
TestUser#MyDomain.Local
You may want to try your local machine address instead :
ldap://127.0.0.1:389/dc=maxcrc,dc=com
If that doesn't work, I'd fire up Wireshark, and have it capture traffic on port 389 as you're attempting to connect via Softerra.
In my time working with LDAP and .Net DirectoryServices, that error usually means the syntax or naming convention of the path is incorrect, or does not point to a valid directory end point.
That error might be due to trying to connect as "Anonymous" without specifying it explicitly.
By default all connections are Negotiable. So if you try something like that you could try the following:
LdapDirectoryIdentifier ldap = new LdapDirectoryIdentifier("My Hostname or IP Address",10389); //10389 might be your non default port
LdapConnection connection = new LdapConnection(ldap);
connection.AuthType = AuthType.Anonymous;
Related
I try to connect to LDAP server using SSL and get the error
The distinguished name contains invalid syntax
Code:
string userName = "1n07op"
LdapDirectoryIdentifier ldi = new LdapDirectoryIdentifier("myddc01.swinfra.net",636);
LdapConnection ldapConnection = new LdapConnection(ldi);
ldapConnection.Credential = new NetworkCredential(userName, password);
ldapConnection.SessionOptions.SecureSocketLayer = true;
ldapConnection.SessionOptions.ProtocolVersion = 3;
ldapConnection.SessionOptions.VerifyServerCertificate = new VerifyServerCertificateCallback(ServerCallBack);
ldapConnection.AuthType = AuthType.Basic;
ldapConnection.Bind();
ldapConnection.Dispose();
return true;
Can anyone help my solve this problem?
Assuming that the username "1n07op", you need to include the type of this attribute you are using, for example cn, ou, uid, sn plus the full dn where your user exists in the ldap, thus, to successfully bind to your ldap you will need to have your username set to something like this:
String userName="uid=1n07op,ou=people,ou=company,ou=com"
I need to connect to NetIQ eDirectory using .NET & C#. The connection must be opened using application credentials. Once the connection is opened, I need to validate user credentials under the authority of the application credentials using a similar method as S.DS.AccountManagement.
using (var context = new PrincipalContext(ContextType.Domain, path, appUserDn, appPassword))
{
//Username and password for authentication.
var valid = context.ValidateCredentials(userDn, password);
}
I tried Novell.Directory.Ldap, S.DS.DirectoryEntry, & S.DS.AccountManagement. The last one requires AD and does not apply.
Test using Novell.Directory.Ldap..
using (var cn = new LdapConnection())
{
cn.Connect(server, int.Parse(port));
cn.Bind(appUserDn, appPassword); //throws exception if invalid credentials..
var passwordAttr = new LdapAttribute("userPassword", password);
cn.Compare(userDn, passwordAttr); // Only compares password, so no locked account check, etc.
}
My current prototype uses S.DS.Protocols.
var networkCredential = new NetworkCredential(
appUserDn,
appPassword);
using (proto.LdapConnection cn = new proto.LdapConnection(new proto.LdapDirectoryIdentifier(server, int.Parse(port)), networkCredential, proto.AuthType.Basic))
{
cn.Bind();
/// Next validate user credentials..
}
I cannot find a way to validate user credentials other than reassigning NetworkCrentials and rebinding using the individual's username & password. How should I proceed?
It turns out our client got it wrong. The correct way is to bind the connection directly to an individual's credentials as I demonstrate in the Novell.Directory.Ldap example.
There was a posting on NetIQ's forum about executing a shell script but I did not get it working.
i m trying to connect to Active Directory code that i have used
string domain = "domain.com.pk";
string container = "DC=mycompnay,DC=com,DC=pk";
string Admin = "salman.zafar";
string Password = "password";
using (PrincipalContext pc = new PrincipalContext(ContextType.Domain, domain, container, Admin, Password))
{
string userPrincipalName = "dotnettest" + "#" + domain;
// validate the credentials
bool isValid = pc.ValidateCredentials(userPrincipalName, "Ascertia 12");
if (isValid) {
UserPrincipal up = UserPrincipal.FindByIdentity(pc, IdentityType.UserPrincipalName, userPrincipalName);
}
code works fine when the code running on machine which is in domain but if i try to connect to the AD machine that is remote then i get error
i tried to use
string domain = "192.168.0.150:389/domain.com.pk";
then it didn't work and validate credentials method always return false can some one help me how can i connect to remote active directory using IP with port with PrincipalContext or i have to use directory entry
any help will be appreciated
First note:
code works fine when the code running on machine which is in domain
In this case, you do not need to provide adminuser+pw in the PrincipalContext constructor if the machine is a domain member (which I assume here).
If you want to connect to any other AD server (domain controller) with no trust between the foreign domain and the current domain, use the IP address or server name as the "domain" name:
string domain = "192.168.0.150";
If your goal is to just check if credentials are valid, you can even omit the admin user + pw:
string domainController = "192.168.0.150";
using (PrincipalContext pc = new PrincipalContext(ContextType.Domain, domainController))
{
string userPrincipalName = "dotnettest" + "#" + domain;
// validate the credentials
bool isValid = pc.ValidateCredentials(userPrincipalName, "Ascertia 12");
}
In this case, however, you cannot have
UserPrincipal up = UserPrincipal.FindByIdentity(...
because the PrincipalContext itself is not logged on.
You can also see my answer in a similar question: https://stackoverflow.com/a/28690682/4547223
or this SO article Validate a username and password against Active Directory?
I keep getting the following error when trying to connect to an LDAP server. The user name or password is incorrect.
It occurs on the .FindOne()
If I use AuthenticationTypes.Encryption i get an error: The server is not operational.
I've also tried to prepend the username with ownme\username
I'm extremely newbish with AD so the issue might be so simple.
Domain = domain;
_entry = new DirectoryEntry("LDAP://DC1/DC=ownme,DC=local", username, password, AuthenticationTypes.ServerBind);
_directorySearcher = new DirectorySearcher(_entry, "(objectClass=*)", new string[] {"namingContexts"}, SearchScope.Subtree);
var namingContext = _directorySearcher.FindOne();
The problem was credentials. You need to specify the domain prefix in the username or look at one of the comments in my question.
I had var username = "domain\username";
I should have written var username = #"domain\username";
I need to connect to an external LDAP server that is accessible to me but only over LDAPS.
The information I have available is username, server, password. I need to query and retrieve a list of all users. The format I have the details in are
Username: domain\username
Password: {password}
Domain: remote.{domain}.net.au
The following code I wrote will authenticate my user account successfully, but I now need to enumerate all users which is where I'm having issues. Ideally this would be ALL users in the directory, not from within a specific OU. Again, I don't have the fully qualified paths to any OUs for this server. The server has a self signed certificate which is why in my example I am specifically telling it to accept the certificate.
int port = secured ? 636 : 389;
LdapConnection connection = new LdapConnection(new LdapDirectoryIdentifier(ldapServer, port, false, false));
if (secured)
{
connection.SessionOptions.ProtocolVersion = 3;
connection.SessionOptions.SecureSocketLayer = true;
}
connection.Credential = new NetworkCredential(username, password);
connection.AuthType = AuthType.Basic;
connection.SessionOptions.VerifyServerCertificate += (conn, cert) => { return true; };
connection.Bind();
return connection;
So the answer is in Performing a Simple Search sample of Introduction to System.DirectoryServices.Protocols (S.DS.P) with :
// create a search filter to find all objects
string ldapSearchFilter = "(&(objectCategory=person)(objectClass=user))";