Microsoft is investigating a new known issue causing enterprise domain controllers to experience Kerberos authentication problems after installing security updates released to address CVE-2020-17049 ...

Several months after announcing its intention to do so, Microsoft has official deprecated the NTLM (NT LAN Manager) authentication protocol in Windows and Windows Server. NTLM is now a very old ...

Kerberos is a protocol for authenticating service requests between trusted hosts across an untrusted network, such as the internet. By providing a gateway between users and a network, Kerberos helps ...

The Kerberos authentication method originated at the Massachusetts Institute of Technology in the 1980s, as part of a project called Athena. The project involved integrating the computers on the MIT ...

Yaron Kassner, CTO at Silverfort, discusses authentication-bypass bugs in Cisco ASA, F5 Big-IP, IBM QRadar and Palo Alto Networks PAN-OS. Authentication is the front gate to security systems, so if ...

While Windows IT professionals deal with security on a daily basis, very few understand the under-the-hood protocol, Kerberos. Kerberos is a security protocol in Windows introduced in Windows 2000 to ...

Server: Fully-patched 2008 R2, running Certificate Services. The /certsrv virtual directory is using (I believe) default settings. Specifically, this means it's using Windows Authentication, with NTLM ...

Microsoft is working on a fix for a bug in last week's patch for a bypass vulnerability in the Kerberos Key Distribution Center (KDC) security feature. Microsoft has flagged the issue affecting ...

Heres a quick question I'm having trouble finding a straight answer too in the RK or other sources, and I don't have time to model it in the test lab before our meeting (argument) next week. If an AD ...

For a long time, Linux has been able to provide file services for Windows using the Samba server. One of the challenges has been the way Samba integrates with client authentication in typical Windows ...