Linux Archives - Page 3 of 20 - ITFROMZERO

Visual Linux Server Management with Cockpit: Monitoring Resources, Storage, and Containers

By IT From Zero October 27, 2026

Manage Linux servers visually with Cockpit: monitor real-time CPU/RAM, safely manage LVM storage, and control Podman containers without draining system resources.

Fedora

Setting Up Ollama and Open WebUI on Fedora: NVIDIA GPU Optimization Without SELinux Headaches

By IT From Zero October 27, 2026

A guide to self-hosting LLMs on Fedora using a hybrid architecture: run native Ollama for direct NVIDIA GPU access alongside containerized Open WebUI via Podman to bypass SELinux issues.

Linux

How to Install and Configure Fail2ban on Linux: Block SSH and Web Server Brute-Force Attacks

By IT From Zero October 25, 2026

A step-by-step guide to installing and configuring Fail2ban on Linux. Proactively prevent SSH brute-force attacks and effectively secure Nginx and web servers.

Fedora

Configuring kdump on Fedora Server: Capturing Kernel Panics and Analyzing Crash Dumps

By IT From Zero October 25, 2026

A step-by-step guide to configuring kdump on Fedora Server, from reserving crashkernel memory and optimizing dump size with makedumpfile to analyzing vmcore dumps using crash.

Linux

How to Install and Configure nftables on Linux: A Complete iptables Replacement

By IT From Zero October 23, 2026

Learn how to configure nftables to replace iptables on Linux. Boost network performance with modern syntax, set up NAT, and prevent SSH brute-force attacks automatically.

Fedora

A Guide to bpftrace and BCC on Fedora: Linux Performance Analysis and Diagnostics with eBPF

By IT From Zero October 22, 2026

Server lagging while top and iotop report normal metrics? Tap into eBPF with BCC and bpftrace on Fedora to dissect latency, disk I/O, and networking with sub-1.5% overhead.

Linux

Configuring auditd on Linux: Monitor Sensitive Files, Log User Commands, and Trace Intrusions

By IT From Zero October 21, 2026

A hands-on guide to configuring auditd on Linux: monitoring passwd/sudoers files, logging user commands by auid, tuning buffers to prevent disk overflow, and analyzing logs with ausearch.

Fedora

How to Join Fedora Server to Microsoft Active Directory Using realmd and SSSD

By IT From Zero October 21, 2026

A step-by-step guide to integrating Fedora Server into Microsoft Active Directory using realmd and SSSD. Covers architecture comparisons, automatic home directories, sudo delegation for AD groups, and offline cache verification.

Linux

Basic SELinux Administration Guide: Security Contexts, Booleans, and Troubleshooting AVC Denials

By IT From Zero October 20, 2026

Hit with a midnight 403 Forbidden on RHEL/AlmaLinux due to SELinux denials? Here is a 5-step guide to reading AVC logs, fixing Security Contexts, and setting Booleans without disabling SELinux.

Fedora

How to Install and Configure BorgBackup on Fedora Server: Automating Data Backups over SSH

By IT From Zero October 20, 2026

A comprehensive guide to setting up BorgBackup on Fedora Server. Leverage deduplication to save 80% disk space, secure backups with AES encryption, and automate via Systemd timers.