How I Was Wrong About Kerberos

Microsoft’s Active Directory includes a version of Kerberos that has had a bad reputation. There were problems several years ago, but the criticisms are now outdated. What was the problem, and how has it been fixed? Origins of Active Directory Windows 2000 was originally going to be called Windows NT 5.0. It was released in […]
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Patch Your Samba Servers or Risk a Worse Version of WannaCry

The big cybersecurity news of the past couple of weeks has been the WannaCry worm. It took advantage of some rather old bugs, dating back to Windows XP and Windows Server 2003. We got lucky! The vulnerability, the problems in the targets, allowed unlimited abuse. But the exploit, the attackers’ code, had a built-in “kill […]
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RHEL 7 New Features: Samba 4 Changes

I’ve recently been describing some of the many changes in the past few years since Red Hat Enterprise Linux 6 came out. Its successor RHEL 7 have been out for almost a year, but from what I’ve seen both in consulting and in teaching Learning Tree’s Linux server administration & support course and their Linux […]
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