I have windows server running ADFS server. I want to Connect to ldap server on it. My questions are
Does running ADFS Server already have LDAP Server running or need to do anything for that? I believe it is running already because I could see open port 389 and 636.
Assuming LDAP server is running, I was trying to connect to it using Google App Directory Sync to get list of users However I was not able to authorize. Is there any default credentials to connect? Or steps to get credentials for LDAP server?
Thanks
An ADFS server is not an Active Directory server - ADFS only extends Active Directory's infrastructure. Ports 389 and 636 are available because ADFS supports the LDAP and LDAPS protocols for communication, and as such, ADFS can retrieve user attributes from Active Directory, and it can also authenticate users against Active Directory. If you already have a directory server running, you need to add it to ADFS as an account store.
There are no default credentials - just use an administrative account that exists in your Active Directory store, as mentioned in point one.
To clarify on terminology for ADFS:
Account Store in ADFS: This is the account store that ADFS authenticates the user against with some form of credential (e.g. Username/password). By default ADFS connects to the Active Directory Domain Services and adds it as a special account store that cannot be deleted. So, any users in this active directory forest or in it's trusted subsystem can authenticate to ADFS. So far, ADFS only supported Active Directory as an account store and nothing else. With Windows Server 2016, it now supports connecting any LDAP v3 compliant directory as an account store. ADFS does not open LDAP ports as it is not an LDAP server. If ADFS were collocated with a domain controller, you would see LDAP ports open.
Attribute Store in ADFS: This a store where you can augment additional information about the user AFTER the user authenticates. By default ADFS has a default attribute store for ADDS that is setup by virtue of the install. Beyond this, it has in-built adapters that can be instantiated to connect to SQL or ADLDS (lightweight directory service). It also has an extensible API to connect to any other attribute store of your choice via .NET. People connect to Oracle/SAP data base, FIM metaverse etc.
#Srikanth: You will use the ADFS claims language or the UI to query for additional data using the attribute store model. In the UI, you would see it when you configure the issuance authorization rules or the issuance claims rules.
Hope that helps
Sam (#MrADFS)
Related
i have configured kerberos authentication when accessing to file server.
there is no need for logging in when i map drive and acccess to the file server
Just a curious question, if i can add additional server name to be used for authentication
for example.
currently my file server name is server01
when i map network drive through server01 / IP address, there is no issue.
when i tried to access through a server name server02, then i get an error in mapping the drive.
is there any way i can do this by allowing multiple server name to be allowed for kerberos authentication ?
thanks in advance for any advise
You can map as many file shares as possible you want with Kerberos authentication on a Windows domain joined system if the file servers hosting the file shares are joined to the same domain as the client Windows system accessing them.
Thus, you may have multiple file servers in your domain environment but they all should be joined to the AD domain for the Kerberos authentication to work successfully and let the users accessing and mapping the file shares authenticate through it as Kerberos needs a KDC (Key Distribution Center) due to which Active Directory authentication is required.
Please find the below dependencies for Kerberos authentication to work successfully: -
Operating System --> Later then Windows 2000 for client and Windows 2003
TCP/IP Network Connectivity --> Should exist between DC, client, and the target server
Domain System --> DNS must be functioning and accessible for the client
Active Directory Domain --> Necessary to use Kerberos authentication
Time Service --> Time source should be same and synchronized on all the network computers
Service Principal Names --> Kerberos authentication needs to have an SPN set for it so that clients can identify the service on the network
Also, refer this document for more details.
I want to connect my samba active directory server with my nextcloud. I cant find ANY information if samba4 has ldap or not? or how i could install openldap with it so that my active directory accounts and passwords are the same as in the nextcloud.
How to configure LDAP on an Samba4 Active Directory Server?
• Samba4 does have support for LDAP server but it has to be integrated with Active Directory or OpenLDAP to provide a schema and other related attributes to be used with other applications dependent on it for authentication.
• And since, configuring OpenLDAP as a backend for the Samba4 server is considered as legacy because it is best integrated with its own LDAP server in AD mode. But still if you want to configure OpenLDAP in the backend with Active Directory providing authentication to external applications, the directory schema will still be AD schema. So, you will have to update external applications accessing the directory using, such as you must do it when you use the Samba internal LDAP server. Additionally, you will have to import attributes manually from the old LDAP server that are not included in the AD schema. Even though, if you want to configure OpenLDAP as the backend with Active Directory, please find the detailed steps in link below: -
https://ubuntu.com/server/docs/samba-openldap-backend
• Also, please note that it is not planned to support OpenLDAP as backend for Samba AD as a significant part of the complexity of the AD DC is in the LDB modules such as creating a general-purpose OpenLDAP back end requires rewriting many of these modules as OpenLDAP overlays, outside the standard Samba programming environment wherein specific problems include the metadata required for both DRS replication and dirsync, schema manipulation, transactions, and access control lists. Please find the below link for detailed steps on configuration of ADDC on Samba4 server and integrating it with internal LDAP server: -
https://wiki.samba.org/index.php/Setting_up_Samba_as_an_Active_Directory_Domain_Controller
• Also, on connecting your Samba4 AD server with nextcloud, you can do it so readily as Nextcloud ships with an LDAP application to allow LDAP users (including Active Directory) to appear in your Nextcloud user listings which will authenticate to Nextcloud with their LDAP credentials, so you don’t have to create separate Nextcloud user accounts for them. Please find the below link on detailed information for its configuration: -
https://docs.nextcloud.com/server/latest/admin_manual/configuration_user/user_auth_ldap.html
I have set up a Mediawiki for our small local domain (abc.local) on a linux VM (just for internal use). Our local domain controller is a Win Server 2008 R2. I've setup the Mediawiki LDAP Authentication extensions so that i can restrict editing of our Wiki to only domain Users. I've configured the Mediawiki LDAP configuration to use the domain Administrator credentials for this authentication.
Is there a way to create another account that can do this user authentication but can't change anything? Sort of like a "read-only" Administrator account?
thanks,
russ
An account can't be "read-only" and also "Administrator". It's one or the other.
"Authentication" can only ever be done with the user's own credentials. There is no special kind of account that lets you authenticate other accounts. All it needs credentials for is to look up accounts on the domain. So you only need a read-only account, which is basically any account that can authenticate on your domain.
So just create an account specifically for Mediawiki and use that.
I have few very specific questions to come to a understanding on Active Directory usage:
ADFS are the services/software to enable SSO login to applications using a single url for users stored in Active Directory. Right?
LDAP is a protocol that exposes other functionalities like fetching users, deleting user, authentication user via bind method etc. stored in Active Directory. Right?
Then can't LDAP and ADFS both work on the same Active directory? This link:
LDAP support in ADFS got me confused in where it is referring to LD and AD as separate entities.
Can't I apply both the mechanisms on same AD? I only have knowledge of LDAP. Trying to learn ADFS.
ADFS provides SSO capabilities for SaaS services and Modern LOB applications. Traditionally, it uses identities stored in Active Directory Domain Services to validate the credentials for a user. In 2016, we also added support to include identities stored in any 3rd party LDAP directory.
Irrespective of where the identity is stored ADFS offers SSO across the applications that trust it.
Hope this clarifies.
Thanks //Sam (Twitter: #MrADFS)
AD stores users, groups and credentials.
To access an attribute in AD, you use the LDAP protocol via e.g. the C# Directory Services API.
ADFS handles authentication against AD and also adds a federation layer on top of AD.
The correct way to access AD attributes via ADFS is to use claims-based authentication whereby you configure ADFS to provision the attributes (as claims) into the token and then extract them on the client side.
I have a question about installing SQL server and a SP2016 development farm. I can install both but my boss asked me questions about installing SPN (Service Principal Name) in the AD. But I don't know why and how an SPN is linked with SQL and SharePoint.
I've done some research on the web and got some terms "Kerberos" but I installed SharePoint with NTLM. Help me understand why SPNs would be useful in this case.
What is a Service Principal Name?
The SPN represents the service entry point into your SQL server for clients to find (using DNS) when they will be using Kerberos authentication.
SPNs are written as a service followed by the fully-qualified DNS name of the IP host the service is running on, (and sometimes optionally, appended with the Kerberos realm name appended to the end). For example if your SQL server were named 'sqlserver1' and your AD domain name was 'acme.com' would be written as: MSSQLsvc/sqlserver1.acme.com.
The SPN itself is found inside the Kerberos database, and clients during the authentication process reach out to DNS to find the IP target host and the Kerberos database (KDC) holding the service principal, grab a Kerberos service ticket from the KDC and use that to single sign-on authenticate to the server running on the target service named in the SPN.
Configuring SPNs
In AD, in the properties of the computer object representing your SQL server, you will add the SPN, and optionally configure Kerberos delegation for that service. You could optionally add the SPN to a user account running the SQL service in AD instead.
In your scenario, Kerberos should actually be the primary authentication method, with NTLM used only as a fallback. If you setup up DNS, AD, Kerberos delegation and the target server correctly, you should never have to fallback to NTLM. With SharePoint, you would use Kerberos to SSO into SharePoint, and then you could optionally allow Kerberos delegation for that same user account to be able to run SQL statements own the SQL DB server as themselves.
None of this is for the faint of heart, and I have actually not setup this precise scenario myself, I just know the underlying concepts; instead my experience is mainly setting up Kerberos SSO to Active Directory authentication to web applications running on Linux platforms. But you asked what an SPN was for and that's what I've answered.
Further Reading
I googled and found this link for you for actually setting up your scenario, it talks about configuring SharePoint with Active Directory with SQL server using Kerberos delegation: Plan for Kerberos authentication in SharePoint 2013