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Change the Windows 11 PIN (Windows Hello) Length from 6 Digits to 4 Digits

Wed, 09 Aug 2023 12:49:37 +0900

I use a PIN on Windows 11. By default, the minimum length was 6 digits, so I tried changing it to 4 digits.

Test Environment

OS: Windows 11 Pro 22H2 22621.2070
CPU: Core i7 13700
RAM: 64 GB

Configuration

Press Win + R (Run), enter gpedit.msc, and open the Local Group Policy Editor.

From the tree on the left, select Computer Configuration -> Administrative Templates -> System -> PIN Complexity. The Minimum PIN length item shown on the right is the setting for the number of PIN digits.
By default, it is Not configured (= 6 or more digits).

A Quick Way to Install WSL2 (Ubuntu) and Docker Desktop on Windows 11

Thu, 03 Aug 2023 12:13:54 +0900

This is a note from installing WSL and Docker Desktop in a Windows 11 Pro environment.

Overview

When using Docker containers on Windows, I use Docker Desktop.
For paid licensing and various other reasons, it seems people are moving away from Docker, but it is still easy and convenient when you want to verify something quickly.

On Windows 10, setting up WSL took a bit of work, but recent Windows 11 versions seem to install it quickly, so I wanted to try it.

How to Run SSHd with Systemd in a CentOS 7 Docker Container

Fri, 17 Jun 2022 20:05:58 +0900

I use Docker Desktop on Windows.

This time I needed to use Systemd on CentOS 7, so I looked into it.

Overview

If you run CentOS 7 in a container without doing anything special, running the systemctl command produces an error like this.

sh-4.2# systemctl start sshd
Failed to get D-Bus connection: Operation not permitted

https://hub.docker.com/_/centos/

リンク先を開く

hub.docker.com

To avoid this, you need to add options when starting the container. Docker Hub describes this, but even following those instructions did not work for me. The required settings seem to differ depending on the environment.

How to Change the Memory Limit in a Docker Desktop Environment

Wed, 15 Jun 2022 15:16:53 +0900

I run containers in a Docker Desktop environment, but they run with less memory than the physical memory available, so I tried increasing the memory allocation. This applies only to environments using the WSL 2 backend.

Overview

Docker Desktop is affected by WSL2's memory limit. On Windows 10, the default memory allocated to WSL2 appears to be 80% of the host memory. When I checked my own environments, they looked like this.

WENRUI (ROYAL KLUDGE RK61) Key Setting Shortcuts

Sat, 21 May 2022 18:16:02 +0900

Notes on switching keys on the WENRUI mechanical keyboard.

Overview

I use a mechanical keyboard sold as the "WENRUI Mechanical Keyboard", but inside it is a ROYAL KLUDGE RK61.

Customizing the Key Layout of the WENRUI (ROYAL KLUDGE RK61) Mechanical Keyboard

Tue, 08 Feb 2022 10:18:35 +0900

This is a note from when I tried customizing the key layout of the WENRUI mechanical keyboard (blue switches) that I bought on Amazon.

Overview

I bought a gaming keyboard on Amazon called the "WENRUI Mechanical Keyboard", and it was engraved ROYAL KLUDGE RK61.

[Emacs] After Trying Mew in Emacs 27 on Windows 10, I Wanted to Display X-Face Too

Wed, 24 Mar 2021 02:06:38 +0900

This drifted a little off track, but while I was migrating my home mail server, I also configured Emacs so I could read and write email there.

Test Environment

Windows 10 Pro version 20H2 (OS build 19042.868)
64-bit GNU Emacs 27.1 official build
"GNU Emacs 27.1 (build 1, x86_64-w64-mingw32) of 2020-08-22"
Mew 6.8 Windows

Overview

I use Mew as the mailer in Emacs. I have not used anything else. I think there was also something called Wanderlust. These days, I almost never read or write email in Emacs anymore. Still, back when email was the main communication tool, being able to write email in Emacs felt deeply impressive.

[Emacs] Try Configuring Fonts in Emacs 27 on Windows 10

Sun, 31 Jan 2021 23:13:52 +0900

When using Emacs, it feels wrong if the fonts are not configured.

I do not really understand the proper way to configure them, but I searched around and tried settings that suit me reasonably well.

Test Environment

Windows 10 Pro version 20H2 (OS build 19042.746)
64-bit GNU Emacs 27.1 official build
"GNU Emacs 27.1 (build 1, x86_64-w64-mingw32) of 2020-08-22"

Overview

The default state is hard to read, so I will start by configuring only the basic fonts. That said, I personally do not understand Emacs font configuration very well.

[Emacs] Use Emacs 27 on Windows 10

Wed, 20 Jan 2021 00:06:24 +0900

To use Emacs on Windows, GNU's official build was effectively hard to use, and comfortable Japanese input required a community build with the IME patch. I am truly grateful for those builds up to now.
This time, W32-IME became easy to use even with the official build, so I tried it.

Test Environment

Windows 10 Pro version 20H2 (OS build 19042.746)
64-bit GNU Emacs 27.1 official build
"GNU Emacs 27.1 (build 1, x86_64-w64-mingw32) of 2020-08-22"

How to Change the Search Engine in the New Chromium-Based Microsoft Edge from Bing to Google

Mon, 27 Jul 2020 19:11:58 +0900

Microsoft Edge became Chromium-based, so I have been trying it out. For now, searching with Bing feels odd to me, so this is about changing the default search engine from Bing to Google.

Test Environment

Windows 10 Pro 2004 OS build 19041.388
Microsoft Edge version 84.0.522.44 (Official build) (64-bit)

Steps

Open Settings from the menu in the upper-right corner of Edge.

Select Privacy and services, then click Address bar at the very bottom of the right pane.