When an on-premises application needs to access Google Cloud, it’s tempting to just let it use a service account key. But if the application runs in an Active Directory environment, there’s a better alternative – we can let it use its domain credentials and “exchange” them against Google credentials. That doesn’t even require custom code anymore.
Continue »
Previously, we explored two ways of authenticating to Google Cloud using Kerberos and NTLM credentials. Both ways involved authenticating to AD FS using Integrated Windows Authentication, and then using workload identity federation. But there’s a third way that we haven’t cover yet – and it involves using the SAML HTTP-POST binding.
Continue »
When an application needs to access Google Cloud APIs, it needs credentials. On Google Cloud, we can attach a service account to the underlying compute resource to let the application obtain credentials. On AWS and Azure, we can achieve something to the same effect by using workload identity federation. But what about on-premises?
Continue »
Workload identity federation supports OpenID Connect, so it should be compatible with AD FS. But until recently, workload identity federation didn’t work with AD FS-issued access tokens – only ID tokens worked properly. What was the issue there?
Continue »
By using certificate-based authentication, we can let a Google Cloud service account authenticate to AD FS without having to manage any client secrets.
Continue »
Using Integrated Windows Authentication (IWA) to authenticate to AD FS not only works for OAuth. We can also use IWA to get SAML 2.0 assertions.
Continue »
When an application needs to authenticate to AD FS, we don’t have to use a client secret. Instead, we can let the application use its existing Kerberos or NTLM credentials to authenticate.
Continue »
By default, installing AD FS requires domain admin access to Active Directory. But it’s possible to deploy AD FS in environments where we don’t have these privileges, like Google Cloud’s Managed Service for Microsoft Active Directory.
Continue »
New documentation and tool support for authenticating to Google Cloud from an Active Directory environment