Guides and How Tos
Zero-downtime kernel patching with Ksplice
Ksplice patches a running Linux kernel without a reboot. Here's what it can and can't do, how to use it on Oracle Linux, and…
8 November 2024 4 min read
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Oracle Linux
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Guides and How Tos
Creating a new sudo user on Oracle Linux
A step-by-step guide to creating a non-root user with sudo privileges on Oracle Linux, and verifying it actually works before you log out of…
5 November 2024 3 min read
Guides and How Tos
What is Oracle Linux, and is the “Unbreakable” branding just marketing?
Oracle Linux is a free, RHEL-compatible distro with an optional custom kernel. We look at what UEK and Ksplice actually do, and whether the…
1 November 2024 4 min read
AlmaLinux
Managing Services with systemd: A Practical Guide
How to start, stop, enable, and troubleshoot services on RHEL-family Linux using systemctl and journalctl, with a worked example using nginx.
8 October 2024 5 min read
AlmaLinux
firewalld Basics on RHEL-Family Linux
A practical introduction to firewalld - zones, services, and ports - with the firewall-cmd commands you need to open ports safely on a new…
4 October 2024 5 min read
AlmaLinux
Managing Packages with dnf: A Practical Guide for RHEL-Family Linux
Learn the dnf commands you'll actually use on a RHEL-family VPS - installing, removing, updating, searching, undoing mistakes, and automating security updates.
1 October 2024 6 min read
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