春雨

都内に住んでいる中高年のおじさんです。
古いPCにLinuxを入れたりして遊ぶのが好きです。
PCをいじるのは好きですが、勉強は苦手です。

I am Harusame.
I’m a middle-aged guy living in Tokyo.
I enjoy tinkering with old PCs by installing Linux on them.
I like messing around with computers, but I’m not very good at studying.

The History of Binder System and Japan’s Unique Variations | The Appeal and Considerations of Replacing Pages at Will

Binder System was invented in Germany in 1886 and is characterized by its ability to be easily replaced. In Japan, it has a unique specification with multiple holes and is used in A4, B5, and A5 sizes. We will also discuss its convenience, the risk of tampering, and how its role has changed with the rise of IT.

United Athle's 100% cotton T-shirts—perfect for loungewear and underwear

What do you guys wear as loungewear or underwear? I mostly wear United Athle T-shirts. They’re affordable, and since they’re 100% cotton, they feel great against the skin. I’m just not a fan of synthetic fabrics like those used in ○ort○ock or quick-dry T-shirts for summer. For summer, I prefer 5.6 oz I think 5.6 oz is best for spring through summer and fall. There are thinner options, but they lose their shape easily and can be a bit see-through. They come in a wide variety of colors and sizes, so they’re my go-to. Depending on the color, some aren’t ...

[Water Shutdown] | Water Tank Cleaning | Things to Avoid During a Water Shutdown

There was a water outage in the old apartment building where I live due to the cleaning of the water storage tank. By law, water storage tanks with a capacity of 10 tons or more must be inspected and cleaned at least once a year. This cleaning process causes a temporary water outage. In buildings with a dual-tank system, inspections and cleaning can be performed without interrupting the water supply. Once the water is restored, it’s best to avoid using the toilet first. I recommend running some murky water from another faucet before using it.

When the window-side gasket on a window air conditioner is too narrow | Adding a window-side gasket | Insert the window-side gasket into the window gasket to reduce gaps, improve the room's airtightness, and boost efficiency | Replacing the gasket

2026/6/7    , ,

If you insert the window-side gasket of a window air conditioner into the frame-side gasket attached to the window frame, it will seal the room more effectively and prevent the air conditioner’s exhaust from being blocked. Corona sells both window-side and frame-side gaskets. On days when strong winds blow, it’s a good idea to secure them with masking tape or similar.

A Comprehensive Guide to Surfshark: From Sign-Up to Usage | How to Use the Internet Safely with a VPN

2026/6/28    , , , ,

A comprehensive guide to Surfshark, from signing up to getting started. We’ll walk you through the setup process in an easy-to-understand way so even beginners can get started without any trouble and use the internet safely.

A Comprehensive Guide to NordVPN: From Sign-Up to Usage | How to Set It Up on Your Computer, Smartphone, and Browser Extensions

2026/6/28    , , , ,

NordVPN is one of the fastest paid VPN services available, offers extensive Japanese language support, and is easy to use. This article provides a clear, step-by-step guide with screenshots covering everything from signing up and payment to account creation, app installation, and connection setup. We also explain how to use it on computers, smartphones, and as a browser extension. It’s useful for staying safe on public Wi-Fi and for cryptocurrency trading. This guide is designed to help even first-time VPN users get started with confidence.

My Experience and Review of NordVPN: For Secure Use of Cryptocurrency and Public Wi-Fi

2026/6/28    , , , , ,

To ensure the security of my cryptocurrency trading and NFT sales, I set up a VPN. A VPN is a technology that encrypts data traffic and protects information by routing it through a secure virtual tunnel. Among the options available, I chose “NordVPN,” a popular service known for its fast connection speeds and strong performance in unblocking video streaming restrictions. In this article, I provide a detailed review of NordVPN, covering how to use it, pricing, connection stability, security features, and the pros and cons I experienced firsthand.I recommend it to anyone looking to enhance their security when using public Wi-Fi or trading cryptocurrencies.

What is Manjaro ? | Overview | Introduction to Rolling-Release Arch Linux-Based Distribution

I’ve compiled a guide covering how to install Manjaro (a lightweight Linux distribution based on Arch Linux), recommended software after installation, how to set up a printer, how to share files, how to set up a local WordPress environment, and how to import accounts into the default email client.

Importing account settings from Thunderbird on another PC into Thunderbird on Manjaro

Thunderbird is the default email client in Manjaro. If you use Thunderbird on other computers, you can import your email account settings.
However, while information such as POP, IMAP, and SMTP port numbers will be imported, your email account passwords will not be imported.
If you have only a few email accounts, it might be faster to simply set them up from scratch.

Sharing Files on Manjaro | Samba | Linux Distribution Based on Arch Linux

2026/8/22    , , , , , ,

To set up file sharing on Manjaro, first install "nautilus-share" using the Software Center, then open a terminal to enable and start Samba. Open the Samba ports in your firewall. If you're accessing the shared folder from Windows, open File Explorer and enter a path like "\\192.168.xxx.xxx" in the address bar.