Understanding Linux Permissions: The “chmod” Cheat Sheet You’ll Never Forget

When you first see a file in Linux, the three-letter string that starts with -rw-r--r-- can look like an alien language.
It tells the system who can read, write, or execute that file. Don’t worry – it’s just a set of rules.
In this post we’ll break those rules down into bite-sized pieces and give you a handy cheat sheet for the most common chmod commands.

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System Administration – grep, cut, head, tail, less, sed

Every system admin has a moment when a simple “look at that file” turns
into a three-hour hunt for information. That’s where the old friends
grepheadtailcutless and sed come in. They’re not
fancy new tools; they’re tried-and-true helpers that can save you hours
of repetitive work.

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DeadSwitch Ethical Hacking – Rules of the Game

The blade is legal. The hand must be clean.

Welcome to the edge.

This is not a playground. This is the wire. The digital warfront. You want to hack with purpose – then learn the rules. A blade in the dark is only justified if your hand is clean. That means ethics, permission, scope, and discipline.

Let’s break it down.


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The Ciphered Mind – Encrypted Journaling with Org-mode

By DeadSwitch | The Cyber Ghost

“Your thoughts should never be anyone’s business. Encrypt the silence.”

In a world obsessed with sharing, I write to forget – not to be remembered by others. My journal isn’t a scrapbook for dopamine or a backup for someone else’s algorithm. It’s a log of operations, and operations require secrecy.

So I encrypt mine. With Emacs. In plain text.

This is how DeadSwitch keeps a daily log that even the digital gods can’t peek into.


Why Encrypt a Journal?

Because the mind is sacred.
Because ideas are weapons.
Because tomorrow’s threat often begins with yesterday’s leak.

Encrypted journaling isn’t about fear. It’s about respect – for your thoughts, your process, your silence.


The Setup – Emacs, Org-mode, and GPG

Here’s the toolbox:

  • Editor: Emacs
  • Format: Org-mode
  • Encryption: GnuPG
  • Extension: org-crypt
  • Storage: Offline, local, under your terms

Emacs Configuration

Drop this into your config:

(require 'org-crypt)
(setq org-tags-exclude-from-inheritance '("crypt"))
(setq org-crypt-key nil) ;; uses your default GPG key
(org-crypt-use-before-save-magic)

This tells Emacs to automatically encrypt any headline tagged with :crypt: before saving.
Decryption happens only when you open the file – and stays in RAM.

A Sample Entry

* May 2025 :crypt:

** [2025-05-04 Sun]
- 5k run - 22:18 [2025-05-04 Sun 09:06]
- Cold shower - difficulty: easy [2025-05-04 Sun 09:28]
- New idea: Emacs Lisp for internal ops [2025-05-04 Sun 14:24]

Your operations, encrypted. Your timestamps, precise. Your log, protected.


Timestamps and Logging Shortcuts

  • C-c . – insert date
  • C-u C-c . – insert date and time
  • C-c ! – inactive timestamp
  • C-u C-c ! – inactive date and time

You want traceability without noise. Emacs delivers.


Why Not Notion, Joplin, Obsidian, or Others?

Because I don’t trust clouds.
Because their encryption isn’t mine.
Because their sync means exposure.
Because when I type, I want code – not JavaScript trying to sell me my own thoughts.


Final Note

“Encryption is not paranoia. It is self-respect.”

  • DeadSwitch

Your mind is a fortress. Don’t leave the gate open.

The Silent Channel: Privacy-Focused Email for Small Businesses

“If your words pass through the wrong gate, they’re no longer yours.”
– DeadSwitch


Email is the first window into your system.
It’s the trailhead of phishing, leaks, impersonation, and silent watchers.
Yet most small businesses still shout through the loudest gates :: Gmail, Outlook, Yahoo.

The servers scan. The ads personalize.
The watchers smile.

You need a quieter way.


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Building a Segmented, Secure Multi-Container Application with Podman

By DeadSwitch | The Cyber Ghost
“In silence, we rise. In the switch, we fade.”


Modern web applications are never just one service.
They’re a fortress of moving parts – and every connection is a potential attack surface.
If you’re still putting the entire stack into one fat container…
You’re building your future breach.

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🕸️ Echoes Beyond the Grid: Private Team Collaboration Tools for Small Business

“The loudest team wins attention. The quietest team survives the breach.”
– DeadSwitch


They said “just use Teams.”
They said “Slack is fine.”

But behind every cheerful emoji and corporate integration… the watchers log.
Transcripts archived. Metadata mapped.
Sometimes not by you.

Continue reading “🕸️ Echoes Beyond the Grid: Private Team Collaboration Tools for Small Business”

Automating UFW Configuration with Ansible: Locking Down the Digital Fortress


In the world of chaos, where every exposed port is a door for the enemy, DeadSwitch doesn’t just lock the doors—we automate. We create shields that rise without a command. Ansible is our tool of choice, a silent executor that commands the system without a whisper.

Your server is vulnerable by default, but with the power of automation, you can fortify it. UFW (Uncomplicated Firewall) is our first line of defense, and DeadSwitch doesn’t do things manually. We automate the walls, making them strong, silent, and ever-ready. Here’s how to lock down incoming traffic with Ansible, ensuring only the trusted can pass through.

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