How to Use tmux for Terminal Multiplexing on RHEL 7 Every Linux administrator has experienced the frustration of losing a long-running process because an SSH connection dropped. tmux (terminal multiplexer) solves this problem by running your terminal sessions inside a persistent server process that survives disconnections. Beyond persistence, tmux allows you to split a single […]
Introduction This guide explains how to Encrypt Disk Partitions with LUKS on Debian 10 on Debian 10 Buster. Debian Buster 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 10 install with […]
How to Set Up a Bash Profile, .bashrc and Environment Variables on RHEL 7 A well-configured shell environment can dramatically improve your productivity as a Linux administrator. On Red Hat Enterprise Linux 7, Bash is the default login shell and it reads several configuration files at startup, each serving a distinct purpose. Understanding the difference […]
Introduction Deploying configure auditd system auditing on debian 10 on a Debian 10 Buster 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 Ensure Debian […]
How to Configure sudo and Sudoers on RHEL 7 On a Red Hat Enterprise Linux 7 system, it is a fundamental security best practice to avoid performing routine administrative tasks directly as the root user. The sudo utility allows designated regular users to execute specific commands — or all commands — with root-level privileges, while […]
Introduction Deploying set up file integrity monitoring with aide on debian 10 on a Debian 10 Buster 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. […]
How to Manage Systemd Services and Units on RHEL 7 Red Hat Enterprise Linux 7 made a significant shift from the traditional SysVinit and Upstart initialization systems to systemd as the default init system. Systemd is a comprehensive system and service manager that controls how services start, stop, and interact with the rest of the […]
Introduction Deploying perform a cis benchmark audit on debian 10 on a Debian 10 Buster 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 Before […]
Introduction How to Configure AppArmor Profiles on Debian 10 is a fundamental operation for any administrator maintaining a Debian 10 Buster server. Debian 10 Buster 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 10. This […]
Introduction Debian 10 Buster is built around the ethos of stability and free software. Setting up install and configure fail2ban on debian 10 on Buster leverages the same proven Debian packaging system that powers millions of servers worldwide, while benefiting from the latest upstream releases included in the Buster freeze. Follow each step carefully and […]
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