I got tired of it.
Genuinely tired.
Every time I’d tail the auth log on my server, it was just wall-to-wall garbage — bots hammering SSH from all over the world, all day, every day.
I’d done the usual stuff: changed the port, set up fail2ban, whitelisted IPs.
And honestly? It still felt like playing whack-a-mole.
So I finally just said forget it and closed the port entirely.
No port, no problem.

The approach is simple: route all SSH access through Cloudflare Tunnel and don’t expose port 22 (or any other port) to the internet at all.
This covers both macOS Terminal and Windows PuTTY, since I use both depending on where I’m working.
Server is Rocky Linux 9.7, for reference.

So you want a website nobody else can touch.
If you’re self-hosting anything with sensitive data, you probably need this.

This is how I set up client certificate auth on Apache so only my devices can even connect.

Act now. Microsoft confirmed an actively exploited zero-day. Learn about the information disclosure vulnerability that bypasses ASLR and how to defend against it.

Chinese-speaking hackers breached SonicWall VPN and escalated all the way to VMware ESXi hypervisor control.
The exploit toolkit was apparently in development for over a year before anyone knew these bugs existed.

If you work with computers you probably need to check your public IP address from time to time.
Maybe you’re setting up remote access or adding your IP to a server firewall.
Or maybe you just want to verify your VPN is actually working.

Most people would just google “what is my IP” or visit some IP checking website.
But I’ve got a much simpler method using curl that I want to share with you guys.

Copy Reference Mark

Copy reference mark → “※”

Reference mark special character → (※)

Reference mark symbol → [※]

Select and copy the reference mark above to use it!

Copy Arrows

Basic arrows → “→ ← ↑ ↓”

Bidirectional arrows → “↔ ↕”

Diagonal arrows → “↗ ↘ ↙ ↖”

Select and copy the arrows above to use them!

Copy Middle Dot

Copy middle dot → “·”

Middle dot special character → (·)

Middle dot symbol → [·]

Select and copy the middle dot above to use it!

I recently reinstalled macOS, so I’m writing down the port changes and ACL setup.

Of course, you’ll want to change the default port to a different number,
and to further enhance security, I’ll configure an ACL (Access Control List) to allow access only from specific IP addresses.

macOS security keeps evolving, so these methods change with each OS update.
Tested and working on macOS Sequoia 15.7.3 (January 2026).

This article explains step by step why changing the port is important
and how ACL configuration can further enhance security.

As of December 2025, this is the latest version of Windows 11 25H2.

1. Download the Windows disk image (ISO)
2. Create a Windows installation USB
3. Select the clean install option for Windows
4. Perform the initial Windows setup

I’ll walk you through each step in sequence.
I’ve included detailed screenshots of every step so beginners can follow along immediately.

Don’t overthink it.
Just follow along, and anyone can install a clean new copy of Windows.

This is Part 3 of the Chrome Password Hacking Series.

In the previous article, we looked at how stored passwords can be leaked
when the attacker knows the PC account password.

In this post, we will look at a different scenario —
even without knowing the PC account password,
Chrome passwords can still be extracted if the computer is left unlocked for a moment.

This is not remote hacking.
It’s another form of local attack, carried out by someone with brief physical access to your machine.

This is Part 2 of the Chrome Password Hacking Series.

Chrome’s password autofill feature is convenient, but that convenience can hide a critical weakness.
If someone knows your PC account password, it effectively means your entire set of Chrome-stored passwords is exposed.

This is not a remote hack.
It’s a local attack, carried out by someone who can briefly sit in front of your unlocked PC.

This is Part 1 of the Chrome Password Hacking Series.

Chrome’s password autofill feature is convenient and makes everyday browsing easier.
However, convenience often comes with security trade-offs, and autofill is no exception.

In this post, we’ll take a closer look at how the passwords stored in Chrome can be exposed.
This is not about remote hacking—it’s a type of local attack, where someone with brief access to your PC can retrieve your saved passwords.

When installing Windows 11, you may encounter issues due to TPM 2.0 or Secure Boot requirements.
Here’s a simple method to bypass verification by modifying the registry.
Confirmed working as of November 2025.
Works well with Win11_25H2.iso.

This is the password management program I use for work.
It’s been so valuable to me that I wanted to share it with you.
Stop storing your work passwords in Excel files.

Important passwords should be stored in personal files that no one else can access.
This is especially true for IT administrators—KeePassXC is incredibly useful.

KeePassXC is a leading open-source password management tool that’s completely free and works seamlessly across any operating system or mobile environment.

This article covers the essentials of using KeePassXC.

After upgrading to or freshly installing Windows 11, many users find the unfamiliar interface inconvenient.
The centered taskbar, simplified right-click menu, and altered Start Menu and File Explorer interface.
You miss the familiar Windows 10 environment.

Searching online reveals methods using BAT files or scripts to change everything at once.
But running scripts from unknown sources feels risky.

This guide shows you how to configure settings manually wihtout BAT files.
Follow each step to restore your system to a familiar look.

This is jwShiftSpaceKey, famous for its Shift+Space Korean-English switching feature.
It appears development ceased around late 2024 when the creator’s blog disappeared.

You can safely download jwShiftSpaceKey from this post.
Though it’s regrettable development has stopped, I hope this still helps those seeking jwShiftSpaceKey.

It works well on Windows 10 and Windows 11.

Have you ever tried to copy text from a website, only to find that right-clicking and text selection are completely blocked?
It’s incredibly frustrating when websites prevent you from copying content or saving images.

The good news?
These restrictions are implemented using JavaScript, which means you can easily bypass them by disabling JavaScript in your browser.

In this guide, I’ll show you how to disable JavaScript in Chrome to copy protected text and download images from any website.

Updated for Windows 11, October 2025

Windows 11 won’t install on computers without TPM 2.0 support.
But there’s a simple workaround - you can bypass this requirement and install Windows 11 on older PCs.
Here’s how to do it, step by step.

1. Download ISO from Microsoft’s official website
2. Create bootable USB with Rufus
3. Install Windows 11

Let’s get started!

Copy Blank Character Directly

Blank character → “ㅤ”

Blank character → (ㅤ)

Blank character → [ㅤ]

Copy the blank space above and use it!!