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 There were problems several years ago, but the criticisms are now outdated.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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Red Hat’s NetworkManager and Firewall Daemon — Nice Ideas, But Not For My Server

I have a suggestion that may look strange at first, but bear with me: Red Hat Enterprise Linux includes two core networking services that should be disabled. Red Hat provides two operating systems, Fedora and Red Hat Enterprise Linux or RHEL. My suggestion makes more sense when we consider how RHEL is developed. Both Fedora […]
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How to Transition from init to systemd: Controlling Services

Last week I showed you how to determine your current run state and figure out what that really means. Let’s control some services to tune the state of our system! The systemctl command is the master tool for controlling and querying the systemd system and service manager. Both it and the related journalctl command truncate […]
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How to Transition from init to systemd: Getting Started

The change from classic init to systemd is a really big one. Some may even say controversial! A few old standbys still work — for now — as automatic workarounds. We can still do major state changes with reboot, halt, and poweroff; by running init with a numerical argument, and with shutdown. Also, Red Hat’s […]
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