Introduction This tutorial demonstrates how to Manage Users and Groups on CentOS Stream 9 on CentOS Stream 9. It is written for administrators who want a repeatable, well-explained walkthrough that goes beyond a bare command list and explains each configuration choice. Every command is tested against a freshly registered CentOS Stream 9 system with the […]
Introduction This guide explains how to Configure rkhunter Rootkit Scanner on Debian 9 on Debian 9 Stretch. Debian Stretch uses systemd for service management, nftables as the underlying packet filter (with ufw or iptables front-ends still available), and AppArmor for mandatory access control. Every command is designed for a minimal Debian 9 install with the […]
🟠 High ⏱ 15–60 min Last verified: 12 March 2022 Affected versions: Ubuntu 18.04 (bionic) 📖 ~4 min read • Source: Ubuntu Security Notice USN-4992-1 Related CVEs: CVE-2020-14372 CVE-2020-25632 CVE-2020-27749 CVE-2020-27779 CVE-2021-20225 CVE-2021-20233 https://wiki.ubuntu.com/SecurityTeam/KnowledgeBase/GRUB2SecureBootBypass2021 https://launchpad.net/bugs/1889556 +9 more Upstream summary: Máté Kukri discovered that the acpi command in GRUB 2 allowed privileged users to load […]
Introduction This guide explains how to Configure ZFS on Debian 11 on Debian 11 Bullseye. Debian Bullseye uses systemd for service management, nftables as the underlying packet filter (with ufw or iptables front-ends still available), and AppArmor for mandatory access control. Every command is designed for a minimal Debian 11 install with the standard repositories […]
Introduction CentOS Stream 9 ships with a stable, security-hardened base that makes deploying install ruby on rails on centos stream 9 both straightforward and auditable. This tutorial covers the complete procedure for how to Install Ruby on Rails on CentOS Stream 9, including dnf module streams where applicable, systemd unit management, and the firewalld rules […]
Introduction Debian 11 Bullseye is built around the ethos of stability and free software. Setting up configure blackbox exporter for endpoint monitoring on debian 11 on Bullseye leverages the same proven Debian packaging system that powers millions of servers worldwide, while benefiting from the latest upstream releases included in the Bullseye freeze. Follow each step […]
Introduction This tutorial demonstrates how to Configure Audit Logging on CentOS Stream 9 on CentOS Stream 9. It is written for administrators who want a repeatable, well-explained walkthrough that goes beyond a bare command list and explains each configuration choice. Every command is tested against a freshly registered CentOS Stream 9 system with the default […]
Introduction How to Set Up Sensu Monitoring on Debian 9 is a fundamental operation for any administrator maintaining a Debian 9 Stretch server. Debian 9 Stretch ships with the Linux 6.12 kernel, updated toolchains, and a fully refreshed package archive — meaning version numbers, configuration file paths, and some dependency chains differ from Debian 9. […]
Introduction Deploying configure ospf with frrouting on debian 11 on a Debian 11 Bullseye machine is straightforward thanks to Debian’s policy-compliant packaging. Unlike rpm-based distributions, Debian stores configuration helpers in /etc/default/, uses update-rc.d for older init scripts, and provides dpkg-reconfigure for interactive package configuration. This tutorial stays on the systemd path throughout. Prerequisites You will […]
Introduction Setting up configure harbor container registry on centos stream 9 on a CentOS Stream 9 server is a common task for system administrators, DevOps engineers, and site reliability engineers. This guide explains how to Configure Harbor Container Registry on CentOS Stream 9, with all the commands you need, the SELinux and firewalld considerations to […]
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