I am unable to do secure ldap search, to an azure ad instance
requirement: do ldapsearch over internet using ldaps protocol, and get info from Azure ad
my setup
azure in eval mode - domain name is the default option presented during creation, eg devopoutlook.onmicrosoft.com
created azure ad domain service - domain here is of the format xyz.abc.com (not a routable DNS)
Secure LDAP enabled with self signed certificate
added rules for incoming ldaps requests, noted down the public ip
created a user account, added to global administrator / AAD DC Administrators
reset the user's password - verified login works through portal.azure.com
when i attempt a ldapsearch to the public ip from my computer i see the below error
LDAPTLS_REQCERT=never ldapsearch -x -D "userx#devopoutlook.onmicrosoft.com" -W -H ldaps://x.x.x.x:636 -b "dc=devopoutlook,dc=onmicrosoft,dc=com"
Enter LDAP Password:
ldap_bind: Invalid credentials (49)
additional info: 80090308: LdapErr: DSID-0C09044E, comment: AcceptSecurityContext error, data 52e, v2580
packet capture shows an encrypted alert from client to server, after client handshake is done, hence i dont think its a cert related issue, i am unable to figure out if its a password issue, i am sure the password is correct
the user account is a cloud only account, so password hash sync should have happened after password reset (i have reset multiple times)
I have also done the same experiment with a onprem ad user, synced via AD connect. that gives the same error
Are there any steps i am missing, or am i expecting something that wouldn't work, please help
LdapErr: DSID-0C09044E, comment: AcceptSecurityContext error, data 52e, v2580
On Workaround try with these
1) As you mentioned you using the Cloud only account
Cloud only account on an AAD tenant, you need to change the password on the account on the cloud account and wait ~30 minutes or so for the password to replicate before you can bind on AAD DS. change the password for that user before you can authenticate with LDAP. That is because AAD will not create the password hashes (it needs for NTLM and Kerberos authentication for LDAP) automatically for cloud-only users - but it creates them the next time the password is changed.
This topic is covered in the following article: https://learn.microsoft.com/en-us/azure/active-directory-domain-services/tutorial-create-instance
2) The DN name for the user should be similar to how they are named in local Active directory
For example if I have named my AAD domain services instance domain as contoso.com , then the Domain container values for DN attribute would correspond to that just as in Local AD . Generally all the synced users to AAD domain services go to the container "AADDC Users" within Domain services instance so for a user in domain services it will be
CN=<firstName lastName>,OU=AADDC Users,DC=Contoso,DC=com
For more details refer this document:
3) Above error Returns when username is valid but password/credential is invalid.
Please verify that your given password is correct or not.
Reference:
For more details refer this document: Tutorial - Configure LDAPS for Azure Active Directory Domain Services | Microsoft Docs
deleting the AADDS and redeploying as user forest did the trick from what i understand, resource forest => there is no sync of user id between AAD and AADDS
Related
We are developing a ReactJs and NodeJs application where node has to authenticate AD users using LDAP.
We are able to complete the authentication successfully using LDAP,
But the requirement is, in On-prem users are already logged in to the AD and if they open our web it should login without asking credentials again, it it is not happening with LDAP integration.
Can some one please help me.
Thanks in advance.
To add SSO in on-prem Active directory login using LDAP, please follow below steps:
Go to Administration -> Applications and enable Single Sign-On -> click setting -> select LDAP method.
If you want your users to login without using credentials again, set the option to use only SSO authentication only.
UseResponse internal account is created, when a new user logs in against the LDAP server. If you don't want to send internal registration credentials, Disable Registration Email.
In addition to these, include basic settings of your connection:
Give hostname or IP of your LDAP server
Add ldaps:// to hostname when the server has secure connection
Give Base Distinguished Name for your AD with default value dc=localhost.
Enter administration credentials for the connection, if your LDAP server requires authentication.
For more in detail, please refer below link:
Using LDAP as a Single Sign-On (Active Directory) | Integrations | Help Center - UseResponse.
I have provisioned a new Amazon Linux server in AWS environment and joined the server to the domain. I can see the Linux machine in the AD but cannot able to login using the AD credentials. However, I have tried to use the AD credentials but the following error has been encountered:
No Supported Authentication Methods Available (Server Sent: Public Key)
Could someone look at this and provide the resolution ?
In Amazon Linux, before you join the server to Active Directory make sure the password authentication attribute is set to true and AllowUsers string is added in /etc/ssh/sshd_config file.
Once added the required parameters, join the server to Active Directory and once joined, you can login directly with your AD credentials
When a user logs in to a SSO (Single Sign on) application, IIS makes a request to LDAP (Lightweight Directory Access Protocol) to get some user information for authentication. I am trying to find where the communication between LDAP and IIS happens (I am assuming that IIS sends a request to LDAP in order to get some user information). I have looked in the IIS Manager in windows and could not find the communication between IIS and LDAP. Does anyone know where I would be able to find the communication between LDAP and IIS?
If you're talking about Windows Authentication, then no, IIS doesn't use LDAP. It will use either Kerberos (preferably) or NTLM.
The mechanism is different for each, but basically, the user is already logged in on the client computer and sends their already-existing ticket to the server. The server just verifies the ticket with the domain controller. This means that the server must be joined to the same domain (or a trusted domain) as the user logging in.
For seamless SSO (where the user does not need to type in their username/password), the user must be logged into the client computer with the credentials they want to use on the website. If not, they will be prompted for credentials and the actual logging in will happen from the server.
If you cannot use Windows Authentication because the server is not joined to the same (or trusted) domain as the user, then you would have to implement LDAP authentication yourself. You would use Forms Authentication, ask for the user's username and password, and validate the credentials like this for example.
I am simply trying to follow the steps here so that I can query an Azure Analysis Services model from C#. But in SQL Server Management Studio I fail to connect to the server when using "Active Directory - Password" authentication, getting error message "Unable to obtain authentication token using the credentials provided..."
I tried using the username displayed in Analysis Services Admins that looks like this: john.doe_outlook.com#EXT##johndoeoutlook.onmicrosoft.com
and the outlook e-mail address associated with the Azure account which is of this form john.doe#outlook.com.
The password I used is also my Microsoft account password. From researching, it is never made clear to me at all what password I should be typing in, where do I get it from? Or what exactly do I need to do here so that I can successfully connect?
Both usernames I tried result in this message:
Unable to obtain authentication token using the credentials provided. If your Active Directory tenant administrator has configured Multi-Factor Authentication or if your account is a Microsoft Account, please remove the user name and password from the connection string, and then retry. You should then be prompted to enter your credentials. (Microsoft.AnalysisServices.AdomdClient)
If I enter john.doe_outlook.com#EXT##johndoeoutlook.onmicrosoft.com as the username I get these messages:
user_realm_discovery_failed: User realm discovery failed (Microsoft.IdentityModel.Clients.ActiveDirectory)
The remote server returned an error: (400) Bad Request. (System)
and if I enter john.doe#outlook.com as the username I get these messages:
Sequence contains no elements (Microsoft.IdentityModel.Clients.ActiveDirectory)
I solved this by creating a new a app registration and selected
'Accounts in any organizational directory and personal Microsoft accounts (e.g. Skype, Xbox, Outlook.com)'
instead of
'Accounts in this organizational directory only (Default Directory)'.
When I connect to the server in SSMS, I select Active Directory with MFA support instead of Active Directory-Password, and I enter john.doe#outlook.com. And it connects.
I am trying to access the Azure AD graph API. I have successfully added users to my test environment (ADFS) and changed their domain to {mytestdomain}.onmicrosoft.com. The password synchronization using Azure AD Connect works.
Now I have setup the production environment (including ADFS) accordingly and I am now synchronizing the users, but obviously can't change the domains to {mydomain}.onmicrosoft.com. The users now have {mydomain}.net and I am synchronizing the users to a verified domain in Azure AD.
When trying to access
https://login.microsoftonline.com/{mydomain}.net/oauth2/token
using the following (yes, I know that grant_type is not recommended, but that's not the point)
grant_type: password
username: {user}#{mydomain}.net
password: XXXX
resource: https://graph.windows.net
client_id: {Guid}
I get:
AADSTS70002: Error validating credentials.
AADSTS50126: Invalid username or password
If I use an administrator like admin#{mydomain}.onmicrosoft.com it works fine.
In the Azure portal I have tried changing the primary domain from {mydomain}.onmicrosoft.com to {mydomain}.net, but it does not make a difference.
It says in the management portal:
"To configure {mydomain} for federated sign-on to your Azure Active Directory, run Azure AD Connect on your local network."
Does that apply when using the graph API as well? Do I have to setup federation on my local network or is there another way around?
In the azure portal I have tried changing the primary domain from
{mydomain}.onmicrosoft.com to {mydomain}.net, but it does not make a
difference.
I'm not clear the details of your Syncing steps. Besides verified you custom domain in Azure AD, you also need some other configurations, like Azure AD sign-in configuration. You can see more details in this document.
Does that apply when using the graph api as well? Do I have to setup
federation on my local network or is there another way around?
Yes, Since you're using ADFS, you need to use Federated SSO (with Active Directory Federation Services (AD FS)) to allows your users to sign in to both cloud and on-premises resources by using the same passwords.
You can also see more details about Azure AD Connect user sign-in options in this official document.
Hope it helps!