I am trying to connect to via LDAP for the first time. I am just trying to simply check if a user can login. After trying to connect I am getting an invalid credentials error 49 and error code 81 server is unavailable. I am passing the right user credentials so this should be validating and I am able to connect via JXplorer.
In JXplorer I have my host as ldap.my.edu port as 389
User dn as: Uid=myuser,OU=People, DC=ua,DC=edu
then mypass.
I believe I am not properly translating this to LdapConnection and the network credential. This is my first time so any help would be very appreciated.
const string server = "ldap.my.edu:389/OU=People,DC=my,DC=edu";
const string domain = "ldap.my.edu";
string password = "mypass";
string userName = "myuser";
try
{
using (var ldapConnection = new LdapConnection(server))
{
var networkCredential = new NetworkCredential(userName, password, domain);
ldapConnection.SessionOptions.SecureSocketLayer = true;
ldapConnection.AuthType = AuthType.Negotiate;
ldapConnection.Bind(networkCredential);
}
If you don't have SSL (LDAPS) enabled on this server, which looks to be the case, then you'll want to make sure you set :
ldapConnection.SessionOptions.SecureSocketLayer = false
Or, you can just not set it at all - LdapConnection will default to unsecured port 389 (LDAP) by default, if this isn't explicitly set.
An example, using the values you provided in your question, would be something like this (note that I'm applying the domain to the NetworkCredential and not the LdapConnection class itself) :
// the username and password to authenticate
const string domain = "OU=People,DC=my,DC=edu";
string password = "mypass";
string userName = "myuser";
// define your connection
LdapConnection ldapConnection = new LdapConnection("ldap.my.edu:389");
try
{
// authenticate the username and password
using (ldapConnection)
{
// pass in the network creds, and the domain.
var networkCredential = new NetworkCredential(username, password, domain);
// if we're using unsecured port 389, set to false. If using port 636, set this to true.
ldapConnection.SessionOptions.SecureSocketLayer = false;
// since this is an internal application, just accept the certificate either way
ldapConnection.SessionOptions.VerifyServerCertificate += delegate { return true; };
// to force NTLM\Kerberos use AuthType.Negotiate, for non-TLS and unsecured, just use AuthType.Basic
ldapConnection.AuthType = AuthType.Basic;
// authenticate the user
ldapConnection.Bind(networkCredential);
}
catch (LdapException ldapException)
{
//Authentication failed, exception will dictate why
}
}
Try port 3268 for Global Catalog
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 have an instance of AD/LDS running on my machine and I'm trying to connect to it using the System.DirectoryServices.Protocols.LdapConnection class. For some reason every time I call the Bind() method it throws an LdapException complaining about invalid credentials.
Here's the code I'm using to set up the connection:
var ldapDirectoryIdentifier = new LdapDirectoryIdentifier(config.Server.Host, config.Server.Port);
var creds = new NetworkCredential(config.Credentials.Username, config.Credentials.Password)
{
Domain = config.Credentials.
};
ldapConnection = new LdapConnection(ldapDirectoryIdentifier, creds, AuthType.Basic);
if (config.Server.Secure)
{
cert = new X509Certificate(config.Server.Certificate);
ldapConnection.SessionOptions.SecureSocketLayer = true;
ldapConnection.SessionOptions.VerifyServerCertificate = CheckCertificate;
}
ldapConnection.SessionOptions.ProtocolVersion = 3;
try
{
ldapConnection.Bind();
}
catch (LdapException e)
{
Log.LogException(e);
Environment.Exit(e.ErrorCode);
}
The configuration is coming from an App.config file as in the following example:
<server host="host" port="389"/>
<credentials username="username" password="password" domain="domain"/>
<usersearch base="ou=test,dc=test,dc=com" filter="(middlename=user)" objectclass="inetorgperson"/>
<devicesearch base="ou=test,dc=test,dc=com" filter="(sn=device)" objectclass="inetorgperson"/>
I've tried modifying the credentials part to get it connecting; setting username="DOMAIN\user", with and without the domain entry to credentials. I've tried messing with the connection strings, e.g. <server host="LDAP://host[:389]"/>. It just says the credentials, which I use to connect to the instance with both ADSI Edit and ldp, are invalid.
I CAN connect with the same domain credentials (local user account) using System.DirectoryServices.DirectoryEntry so I suspect it's the AD bit of AD/LDS being picky.
Anyone got any ideas?
It's probably on the session option. Try to force authentication type:
ldapConnection.AuthType = AuthType.Negotiate;
It may also be the way you handle the certificate. Try to add it this way:
ldapConnection.ClientCertificates.Add(cert);
I went ahead and double checked what AuthTypes were available and setting it to Ntlm works.
I'm trying to connect to a server with a SFTP connection, but I'm trying to authenticate with SSH fingerprint, if this is not correct, then should attempt with the SFTP password.
The issue that I'm having is that need both of them to access to the server, that should be different, if is not the SSH fingerprint, then try with the password, but is not working.
There is a way to validate first the fingerprint and if is not correct, validate the user password?
This is what I have:
public string FilesSFTP_FTP()
{
TransferOptions TransferOption = new TransferOptions();
TransferOperationResult TransferResult;
SessionOptions sessionoptions = new SessionOptions();
Session session = new Session();
if (DataFile.sTransportType == "S")
{
sessionoptions.Protocol = Protocol.Sftp;
sessionoptions.PortNumber = 22;
sessionoptions.SshHostKeyFingerprint = DataFile.sFingerPrint;
}
else if (DataFile.sTransportType == "F")
{
sessionoptions.Protocol = Protocol.Ftp;
sessionoptions.PortNumber = 21;
}
sessionoptions.HostName = DataFile.sIPAddress;
sessionoptions.UserName = DataFile.sUserID;
sessionoptions.Password = DataFile.sPassword;
TransferOption.TransferMode = TransferMode.Binary;
TransferOption.PreserveTimestamp = false;
TransferOption.ResumeSupport.State = TransferResumeSupportState.Off;
session.Open(sessionoptions);
}
There is another property that it need to be set?
You cannot "authenticate with SSH fingerprint".
The SessionOptions.SshHostKeyFingerprint is to verify the server's host key. Not to authenticate the user.
To authenticate the user, you need to use the SessionOptions.SshPrivateKeyPath.
See Understanding SSH key pairs to learn the difference.
As for your question. You can set both the SessionOptions.SshPrivateKeyPath and the SessionOptions.Password. WinSCP will first try the private key, and only if that fails, it will fall back to the password. (Or it will use both, is the server requires that)
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;
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))";