#sysadmin

// Sistemi Operativi & Sicurezza

03.08.2026 :: Ing. Calogero Bono

Linux Monitoring with htop vmstat iostat — Diagnose Performance Without Guessing

Your Linux server is slow, but you don't know why. Is the CPU maxed out? Is memory swapping? Is the disk the bottleneck?...

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// Sistemi Operativi & Sicurezza

24.07.2026 :: Ing. Calogero Bono

Linux Process Management — ps, kill, signal, nohup, and Background Jobs for Servers That Never Stall

Your server just stopped responding. A process is looping, RAM is saturated, and the only way out you know is a full reb...

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// Sistemi Operativi & Sicurezza

26.06.2026 :: Ing. Calogero Bono

Systemd and Service Management — Start, Stop, Enable Services and Use Journalctl

You just installed an application on your server and need to start it. Or maybe a service stopped responding and you don...

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// Sistemi Operativi & Sicurezza

22.06.2026 :: Ing. Calogero Bono

Shell Scripting and Linux Automation — Bash, Cron, SSH, and Ansible for Servers That Actually Work

Do you have a server that crashes every week because someone forgets to run a backup? Or do you spend hours repeating th...

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// Sistemi Operativi & Sicurezza

17.06.2026 :: Ing. Calogero Bono

Linux for Developers and Sysadmins: The Definitive Guide from Shell to Production Server

If you manage a server or develop on Linux, you know the shell does not forgive mistakes. One wrong command and an entir...

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// Sistemi Operativi & Sicurezza

02.06.2026 :: Ing. Calogero Bono

Linux for Developers: Filesystem Navigation, Permissions, and Basic Commands — Operational Guide

If you're a developer or sysadmin just starting out, the Linux terminal can feel like a wall of hostile text. We see it...

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