Article Index

linux 🐧 audio 🔊">

'ls': Navigating Linux with Precision.

linux 🐧 / audio 🔊 • November 21, 2024 • 2 min read

ghost cms issues 🛠 tips linux 🐧 paid-members">

[TryGhost/Ghost] ECONNREFUSED ::1:3306

ghost cms / issues 🛠 / tips / linux 🐧 / paid-members • December 4, 2023 • 2 min read

shell 🛠️ linux 🐧 audio 🔊">

/bin directory.

shell 🛠️ / linux 🐧 / audio 🔊 • September 24, 2024 • 3 min read

shell 🛠️ linux 🐧">

/boot directory.

shell 🛠️ / linux 🐧 • October 24, 2024 • 3 min read

linux 🐧 shell 🛠️">

/etc/skel directory.

linux 🐧 / shell 🛠️ • November 8, 2024 • 2 min read

shell 🛠️ linux 🐧 audio 🔊">

/root directory.

shell 🛠️ / linux 🐧 / audio 🔊 • July 9, 2024 • 2 min read

how to 🪄 tips linux 🐧 terminal">

/var/run/reboot-required.

how to 🪄 / tips / linux 🐧 / terminal • December 16, 2024 • 2 min read

linux 🐧 shell 🛠️">

`cd -`

linux 🐧 / shell 🛠️ • July 26, 2024 • 1 min read

how to 🪄">

`sudo touch /forcefsck` (Ubuntu Server)

how to 🪄 • March 16, 2026 • 2 min read

linux 🐧 audio 🔊">

`w` vs`who` commands.

linux 🐧 / audio 🔊 • October 21, 2024 • 2 min read

terminal linux 🐧 how to 🪄 pdf">

49 Most-Used Linux Commands You Should Know.

terminal / linux 🐧 / how to 🪄 / pdf • June 30, 2022 • 8 min read

tips audio 🔊 paid-members">

ab - Apache server performance testing tool.

tips / audio 🔊 / paid-members • January 4, 2024 • 3 min read

how to 🪄 linux 🐧">

Add Multiple IP Addresses into One Single Network Interface. (Server)

how to 🪄 / linux 🐧 • October 24, 2023 • 4 min read

tips">

Adjusting Pi-hole v6 Session Timeout and MAXSESSIONS Setting.

tips • April 10, 2025 • 3 min read

how to 🪄 tips">

Advanced Linux Mount Management with systemd.

how to 🪄 / tips • May 21, 2026 • 3 min read

how to 🪄 linux 🐧">

Aliases explained.

how to 🪄 / linux 🐧 • June 10, 2021 • 2 min read

tips how to 🪄">

Always Mount Drives Reliably with UUIDs or Labels.

tips / how to 🪄 • December 5, 2025 • 2 min read

how to 🪄 security 🦾🦿 SSH 🕳">

Ansible for the Modern Sysadmin: Installation, Configuration,Vaults and Automation.

how to 🪄 / security 🦾🦿 / SSH 🕳 • February 5, 2026 • 7 min read

linux 🐧">

APT & Repositories on Debian/Ubuntu Server.

linux 🐧 • July 22, 2025 • 2 min read

linux 🐧">

APT vs Snap: What the, what the hell ...

linux 🐧 • November 17, 2022 • 2 min read

linux 🐧">

Behind the Scenes: SMTP Server.

linux 🐧 • January 11, 2021 • 1 min read

linux 🐧 security 🦾🦿 tips how to 🪄">

Beyond Permissions: 'o+rx' vs 'o+rX' in chmod.

linux 🐧 / security 🦾🦿 / tips / how to 🪄 • September 23, 2025 • 4 min read

how to 🪄 linux 🐧 audio 🔊">

Block websites on Local.

how to 🪄 / linux 🐧 / audio 🔊 • September 16, 2024 • 2 min read

how to 🪄 audio 🔊 linux 🐧">

Build and Install htop 3 on Ubuntu.

how to 🪄 / audio 🔊 / linux 🐧 • May 9, 2022 • 2 min read

linux 🐧 security 🦾🦿 how to 🪄">

Chmod +rwx Command on Linux Systems. (Permissions)

linux 🐧 / security 🦾🦿 / how to 🪄 • February 25, 2021 • 3 min read

how to 🪄 linux 🐧 security 🦾🦿 paid-members">

Connecting to Wi-Fi through CLI on macOS.

how to 🪄 / linux 🐧 / security 🦾🦿 / paid-members • November 12, 2023 • 3 min read

shell 🛠️ how to 🪄 script 🏷️🦿 security 🦾🦿 tips">

Controlled Countdown with Bash `for` Loop.

shell 🛠️ / how to 🪄 / script 🏷️🦿 / security 🦾🦿 / tips • April 22, 2026 • 3 min read

linux 🐧 shell 🛠️">

Core aspects of Linux Server.

linux 🐧 / shell 🛠️ • July 19, 2024 • 1 min read

linux 🐧 security 🦾🦿">

Deadly Commands You Should Never Run on *nux Systems. ☠️

linux 🐧 / security 🦾🦿 • March 12, 2021 • 4 min read

how to 🪄 linux 🐧">

Delete all files except SNUB.*

how to 🪄 / linux 🐧 • July 31, 2024 • 2 min read

linux 🐧">

Difference between apt upgrade, apt full-upgrade, and do-release-upgrade.

linux 🐧 • July 29, 2022 • 2 min read

how to 🪄 linux 🐧">

Difference: { } \; vs { } +

how to 🪄 / linux 🐧 • August 12, 2024 • 2 min read

Disable Root Login on Linux (Ubuntu/Debian) — Right now!

• August 4, 2025 • 3 min read

security 🦾🦿 how to 🪄 linux 🐧 tips vpn💄🕸️">

DNS Leaks & IPv6: The Silent Privacy Killer You Didn't See Coming.

security 🦾🦿 / how to 🪄 / linux 🐧 / tips / vpn💄🕸️ • June 5, 2025 • 3 min read

how to 🪄">

Docker 101: What the Fuzz Is It, and Why You Should Care!?

how to 🪄 • November 24, 2025 • 3 min read

how to 🪄 linux 🐧 terminal">

Edit /etc/hosts/ in Linux.

how to 🪄 / linux 🐧 / terminal • August 25, 2021 • 4 min read

tips">

Error - Could not bind TCP port 80 because it is already in use by another process on this system (such as a web server)

tips • November 23, 2023 • 1 min read

tips">

Fix SSH Failed Permission Denied (publickey, gssapi-keyex, gssapi-with-mic).

tips • November 24, 2021 • 2 min read

Fixing `/etc/hosts` Being Overwritten on Reboot (Ubuntu with Cloud-Init)

• May 9, 2025 • 4 min read

proxies linux 🐧 security 🦾🦿">

Forward Proxy VS Reverse Proxy.

proxies / linux 🐧 / security 🦾🦿 • March 24, 2025 • 4 min read

script 🏷️🦿 how to 🪄 linux 🐧 audio 🔊 paid-members">

GeoPin: Small Script --Unveiling the World Behind Every IP Address.

script 🏷️🦿 / how to 🪄 / linux 🐧 / audio 🔊 / paid-members • May 1, 2024 • 4 min read

ghost cms how to 🪄 tips linux 🐧">

Ghost 5+ -- How to Migrate From MariaDB 10.x to MySQL 8.x

ghost cms / how to 🪄 / tips / linux 🐧 • May 30, 2022 • 4 min read

issues 🛠 ghost cms">

Ghost CLI Backups Broken? Blame 2FA — and Here’s the Workaround.

issues 🛠 / ghost cms • May 29, 2025 • 2 min read

how to 🪄 self-hosting 🪲 security 🦾🦿 linux 🐧">

GHOST CMS: backup and restore ⏤ Self-hosting.

how to 🪄 / self-hosting 🪲 / security 🦾🦿 / linux 🐧 • February 1, 2024 • 6 min read

ghost cms how to 🪄">

GHOST CMS: Manually* backup and restore ⏤ Self-hosting.

ghost cms / how to 🪄 • September 27, 2025 • 3 min read

shell 🛠️ how to 🪄 linux 🐧 audio 🔊">

grep --color

shell 🛠️ / how to 🪄 / linux 🐧 / audio 🔊 • October 7, 2024 • 2 min read

linux 🐧 security 🦾🦿">

Hashing, Salting, and Password Storage on Linux.

linux 🐧 / security 🦾🦿 • July 13, 2026 • 6 min read

how to 🪄 SSH 🕳 linux 🐧 security 🦾🦿 paid-members">

How to automatically Backup Your Files to a Remote Server with Rsync.

how to 🪄 / SSH 🕳 / linux 🐧 / security 🦾🦿 / paid-members • December 14, 2023 • 6 min read

how to 🪄 linux 🐧">

How to change a username in Linux.

how to 🪄 / linux 🐧 • September 9, 2024 • 2 min read

how to 🪄 linux 🐧">

How to Change or Set Hostname on Ubuntu Server.

how to 🪄 / linux 🐧 • April 2, 2021 • 2 min read

how to 🪄 linux 🐧">

How to change Sudo Session's Time Limit.

how to 🪄 / linux 🐧 • November 28, 2022 • 2 min read

how to 🪄 audio 🔊 linux 🐧">

How to change the default text editor in Debian.

how to 🪄 / audio 🔊 / linux 🐧 • June 21, 2023 • 1 min read

security 🦾🦿 how to 🪄 linux 🐧">

How to Check if Your iPhone is Infected with Pegasus Spyware.

security 🦾🦿 / how to 🪄 / linux 🐧 • July 26, 2021 • 7 min read

how to 🪄 linux 🐧 paid-members">

How to Clear Buff/Cache in Linux?

how to 🪄 / linux 🐧 / paid-members • July 13, 2023 • 2 min read

how to 🪄 linux 🐧 self-hosting 🪲 paid-members">

How to Completely Remove Snap on Ubuntu server.

how to 🪄 / linux 🐧 / self-hosting 🪲 / paid-members • September 18, 2023 • 3 min read

how to 🪄 linux 🐧 security 🦾🦿">

How to Configure a Firewall with UFW on Ubuntu Server.

how to 🪄 / linux 🐧 / security 🦾🦿 • January 4, 2021 • 2 min read

how to 🪄 linux 🐧">

How to Configure Static IP Address on Ubuntu Server.

how to 🪄 / linux 🐧 • December 3, 2020 • 3 min read

how to 🪄 script 🏷️🦿 ghost cms">

How to Count Your Ghost CMS Drafts with Node.js

how to 🪄 / script 🏷️🦿 / ghost cms • November 4, 2025 • 3 min read

how to 🪄 linux 🐧">

How to Disable motd-news. (Ubuntu)

how to 🪄 / linux 🐧 • November 2, 2023 • 5 min read

how to 🪄 linux 🐧">

How to Enable/Disable Services on Ubuntu Systemd. (Update !!!)

how to 🪄 / linux 🐧 • May 3, 2022 • 4 min read

tips">

How To Fix Apache Configuration Error AH00558: Could not reliably determine the server's fully qualified domain name.

tips • January 23, 2024 • 3 min read

how to 🪄 linux 🐧">

How to Grep for Multiple Strings, Patterns, or Words Like a Pro.

how to 🪄 / linux 🐧 • April 25, 2025 • 3 min read

how to 🪄 security 🦾🦿 linux 🐧">

How to install Fing on Ubuntu Debian Servers.

how to 🪄 / security 🦾🦿 / linux 🐧 • October 7, 2022 • 3 min read

NGINX how to 🪄 http linux 🐧">

How to Install Nginx on Ubuntu Server & Set Up Server Blocks.

NGINX / how to 🪄 / http / linux 🐧 • January 28, 2021 • 6 min read

how to 🪄">

How to Kill SNAP on Ubuntu Server.

how to 🪄 • August 9, 2021 • 2 min read

how to 🪄 linux 🐧 shell 🛠️ terminal">

How to Kill user tty/pts sessions on Linux Systems.

how to 🪄 / linux 🐧 / shell 🛠️ / terminal • January 25, 2021 • 2 min read

how to 🪄 linux 🐧 audio 🔊">

How to List Only Hidden Files in Linux.

how to 🪄 / linux 🐧 / audio 🔊 • October 15, 2024 • 2 min read

how to 🪄 linux 🐧 shell 🛠️">

How to mount/automount USB drive on Linux Systems.

how to 🪄 / linux 🐧 / shell 🛠️ • September 2, 2024 • 5 min read

how to 🪄 linux 🐧 NGINX https http security 🦾🦿">

How to Redirect HTTP to HTTPS in Nginx.

how to 🪄 / linux 🐧 / NGINX / https / http / security 🦾🦿 • January 21, 2021 • 3 min read

tips linux 🐧 SSH 🕳 how to 🪄 audio 🔊 paid-members">

How to Remotely Reboot your Server.

tips / linux 🐧 / SSH 🕳 / how to 🪄 / audio 🔊 / paid-members • February 8, 2022 • 2 min read

how to 🪄 linux 🐧">

How to Remove Packages Using the Command Line in Linux.

how to 🪄 / linux 🐧 • April 14, 2022 • 3 min read

how to 🪄 linux 🐧">

How to remove PPA repositories on Ubuntu Server.

how to 🪄 / linux 🐧 • May 7, 2021 • 3 min read

tips how to 🪄 linux 🐧">

How to Remove/ Disable Zsh History' Commands on Linux.

tips / how to 🪄 / linux 🐧 • September 21, 2022 • 3 min read

how to 🪄 linux 🐧 paid-members">

How to Rename a Service Name for a Port Number.

how to 🪄 / linux 🐧 / paid-members • July 1, 2024 • 2 min read

how to 🪄 terminal linux 🐧">

How to resolve LAN hostnames on Ubuntu Server.

how to 🪄 / terminal / linux 🐧 • August 19, 2021 • 3 min read

how to 🪄 linux 🐧 security 🦾🦿">

How to Secure Apache Web Server with ModEvasive on Ubuntu Server.

how to 🪄 / linux 🐧 / security 🦾🦿 • May 17, 2021 • 4 min read

ghost cms how to 🪄 linux 🐧 self-hosting 🪲">

How to Set up Gmail SMTP Server on Ghost CMS.

ghost cms / how to 🪄 / linux 🐧 / self-hosting 🪲 • October 19, 2023 • 1 min read

how to 🪄 security 🦾🦿 linux 🐧">

How to: Use Postfix to Outbound Email as Gmail Relay on Ubuntu - 2-step verification (Update !!!)

how to 🪄 / security 🦾🦿 / linux 🐧 • June 11, 2022 • 4 min read

https http security 🦾🦿">

HTTPS: Keeping your Online Communication Safe.

https / http / security 🦾🦿 • May 29, 2024 • 3 min read

how to 🪄 security 🦾🦿 linux 🐧">

Install & Use Glances on Ubuntu Server via GitHub (pipx) with FastAPI Web UI & systemd Service.

how to 🪄 / security 🦾🦿 / linux 🐧 • April 1, 2026 • 4 min read

tips how to 🪄">

Installing Command Line Tools on a Headless Mac.

tips / how to 🪄 • October 10, 2025 • 3 min read

macOS terminal issues 🛠 how to 🪄 audio 🔊">

Installing spotDL on macOS.

macOS / terminal / issues 🛠 / how to 🪄 / audio 🔊 • July 8, 2026 • 3 min read

linux 🐧 security 🦾🦿">

Introduction to hashing and checksums on Linux Systems.

linux 🐧 / security 🦾🦿 • February 1, 2021 • 4 min read

security 🦾🦿 https audio 🔊">

Is 256-bit SSL Encryption any Safe?

security 🦾🦿 / https / audio 🔊 • May 20, 2022 • 4 min read

linux 🐧">

Is Linux an Operating System or a Kernel?

linux 🐧 • October 28, 2020 • 1 min read

issues 🛠 linux 🐧 security 🦾🦿 self-hosting 🪲 paid-members">

Issue : “Gmail Authentication failed. Please check your username/password” Error. Also known as the “Server response: 534-5.7.14 Error”

issues 🛠 / linux 🐧 / security 🦾🦿 / self-hosting 🪲 / paid-members • August 25, 2022 • 2 min read

issues 🛠 linux 🐧">

Issue installing apache2 in Ubuntu 22.04: dpkg:- error processing package javascript-common (--configure):

issues 🛠 / linux 🐧 • June 20, 2022 • 1 min read

issues 🛠 linux 🐧 security 🦾🦿 paid-members">

Issue: Logrotate Error because Parent Directory has Insecure Permissions.

issues 🛠 / linux 🐧 / security 🦾🦿 / paid-members • August 24, 2023 • 4 min read

issues 🛠">

Issue... Ubuntu netplan gateway4/6 has been deprecated!!!

issues 🛠 • May 19, 2023 • 2 min read

security 🦾🦿 how to 🪄">

Jump Servers (Bastion Host)

security 🦾🦿 / how to 🪄 • May 29, 2026 • 4 min read

security 🦾🦿 how to 🪄">

Kernel-Level USB Security with USBGuard.

security 🦾🦿 / how to 🪄 • November 12, 2025 • 4 min read

how to 🪄 linux 🐧 tips">

Learn to use '-mtime' in 'find' CMD like a Pro.

how to 🪄 / linux 🐧 / tips • January 16, 2025 • 2 min read

linux 🐧">

Mail Terminology.

linux 🐧 • October 18, 2022 • 2 min read

how to 🪄 linux 🐧 terminal">

Managing Users.

how to 🪄 / linux 🐧 / terminal • April 25, 2022 • 6 min read

security 🦾🦿 how to 🪄 linux 🐧 tips">

Mastering DNS Privacy: Pi-hole + Unbound + OpenVPN. (Part 3 – Final)

security 🦾🦿 / how to 🪄 / linux 🐧 / tips • February 28, 2025 • 5 min read

security 🦾🦿 how to 🪄 linux 🐧 tips vpn💄🕸️">

Mastering DNS Privacy: Pi-hole + Unbound. (part 1)

security 🦾🦿 / how to 🪄 / linux 🐧 / tips / vpn💄🕸️ • March 4, 2025 • 6 min read

security 🦾🦿 how to 🪄 linux 🐧 tips">

Mastering DNS Privacy: Pi-hole + Unbound. (Part 2)

security 🦾🦿 / how to 🪄 / linux 🐧 / tips • March 2, 2025 • 6 min read

tips">

Monitoring Web server logs (Apache, NGINX) with Netdata using Go. (Update !!!)

tips • July 8, 2022 • 3 min read

tips">

Monitoring Web server logs (Apache, NGINX) with Netdata.

tips • January 13, 2022 • 2 min read

how to 🪄 SSH 🕳 security 🦾🦿 shell 🛠️ linux 🐧">

Mosh Server as an SSH Alternative.

how to 🪄 / SSH 🕳 / security 🦾🦿 / shell 🛠️ / linux 🐧 • February 13, 2024 • 4 min read