Posts
Page 64 of 72
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Differences Between nohup, disown, and & in Linux
nohup, disown, and & all keep Linux processes alive after logout, but they work differently. Here's which one to reach for, when, and why.
· Updated:5 min read -
the lost+found Directory in Linux
What is lost+found and why does it exist? fsck puts recovered file fragments there after a crash, and no, you can't delete it.
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Understanding printf vs echo in Bash
echo is convenient but inconsistent across systems; printf is portable and precise, know when to use each and avoid the gotchas.
· Updated:6 min read -
Understanding Grep: A Comprehensive Guide
grep is more powerful than you think, regex patterns, context flags, recursive search, and piping tricks that save hours of log digging.
10 min read -
The Role of Antivirus and Endpoint Detection and Response Systems
AV vs EDR, traditional antivirus signatures vs behavioral endpoint detection. What each catches, what it misses, and what you actually need.
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Key Parameters of Large Language Models
Temperature, top-p, top-k, context length, LLM inference parameters explained so you stop guessing why the model gives weird output.
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Switch Ubuntu to Hardware Enablement (HWE)
Running new hardware on Ubuntu LTS? The HWE kernel backports newer kernel and graphics support. Here's how to switch from generic to HWE safely.
· Updated:5 min read -
Essential Linux Commands for Daily Use
The Linux commands every sysadmin reaches for daily, file ops, process management, networking, and text manipulation you can't live without.
18 min read -
"Packages Have Been Kept Back": What It Means
Apt says packages have been kept back during upgrade. What the message means on Debian 12 and Ubuntu, why it happens, and how to install those packages safely.
· Updated:6 min read -
APT: Upgrade a Single Package, Not Everything
Upgrade one package with apt and leave the rest alone. The exact flag, why apt upgrade nginx does not work, version pinning, and held package behaviour.
· Updated:6 min read -
Certificate Pinning: A Secure Connection Guide
Certificate pinning locks your app to a specific TLS cert so MITM attackers can't swap in a rogue CA, how it works and when to use it.
7 min read -
Docker Networking Essential Guide for All Skill Levels
Bridge, host, overlay, macvlan, and none, every Docker network mode explained with real use cases from beginner to production.
8 min read
