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Kerberos

Explainer: Open Directory

The first version of its predecessor, NetInfo, also handled DNS lookups. When they failed, users found they were locked out of everything else. This has improved!

December 25, 2021 Macs, Technology

Behind the Scenes: Open Directory and Kerberos

These services don’t often appear in the limelight, but the recent vulnerability in High Sierra reminds us how important they still are.

December 1, 2017 Macs, Technology

High Sierra’s security update can block file sharing

If you are running macOS High Sierra 10.13.1 and have just applied the Security Update (2017-001) to fix […]

November 30, 2017 Macs, Technology

Let me in: authentication and authorisation

T T Read More

Access controls require confirmation of who you are, and verification that you are permitted to use the system or services.

July 16, 2015 Macs, Technology

Time, gentlemen, please – NTP

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Time is central information for many functions on your Mac. This article explains the Network Time Protocol, and how it keeps time in OS X.

March 8, 2015 Macs, Technology
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