Terminal on Junian Dev

Dahua NVR or DVR/XVR SSH Password

author@junian.dev (Junian Triajianto) — Thu, 11 Dec 2025 19:00:00 +0700

Recently, I purchased a CCTV Kit in Indonesia. It included 4 security cameras and a DVR/XVR.

It was branded as a Kris Home Security CCTV Kit. However, upon investigating, I found out that it is actually a white-labeled Dahua product.

Kris CCTV Kit, one of the Dahua white-labeled brands

When I was exploring the web interface, I noticed that it has an SSH access feature.

Scoop Package Manager for Windows

author@junian.dev (Junian Triajianto) — Tue, 28 Oct 2025 19:00:00 +0700

I’ve always wanted a package manager like Homebrew for Windows. Sure, Windows now has winget, but it doesn’t feel quite like Homebrew. winget behaves more like an app installer for the Program Files directory. It’s not portable, and some command-line apps aren’t even available there.

Not in the mood for reading? Watch the video instead.

Then I found out about Scoop. In my opinion, it’s the closest thing to Homebrew for Windows. If you’ve used brew before, you’ll find Scoop very easy to pick up.

How to Concatenate Multiple Videos Into a Single Video File with FFmpeg

author@junian.dev (Junian Triajianto) — Sat, 18 Oct 2025 19:00:00 +0700

When I make tutorial videos, I usually record them in a single take, meaning a topic can be covered in one video file with some parts edited or trimmed.

However, sometimes I need to record two or more clips for a single topic. After trimming and editing each one, I then concatenate them into a single video file.

In this post, I’ll show you how I usually merge those video files.

How to Fix Git Refusing to Merge Unrelated Histories Issue

author@junian.dev (Junian Triajianto) — Thu, 25 Sep 2025 03:00:21 +0700

When I tried to merge a git branch from a different repository, I got the following error:

% git merge development-branch
fatal: refusing to merge unrelated histories

Git is refusing to merge the branch because the histories do not share a common ancestor.

The error message fatal: refusing to merge unrelated histories means that the two branches have completely separate histories.

How to Fix 'gpg: decryption failed: No pinentry' on macOS

author@junian.dev (Junian Triajianto) — Sun, 07 Sep 2025 06:53:08 +0700

Recently, while using the pass password manager command-line tool on macOS, I encountered the following error message:

gpg: public key decryption failed: No pinentry
gpg: decryption failed: No pinentry

This issue occurs because the required dependency, pinentry, is missing. On macOS, you need to install pinentry-mac. To fix this, run:

Speedtest CLI: Resolving HTTP Error 403 Forbidden

author@junian.dev (Junian Triajianto) — Sat, 06 Sep 2025 13:35:21 +0700

After setting up networking on my headless Raspberry Pi, I wanted to verify that my internet connection was working properly. To do this, I used the Python tool speedtest-cli.

You can install speedtest-cli by using uv:

uv tool install speedtest-cli

Or the classic pip:

pip install speedtest-cli

However, when I tried to check my internet speed using the command-line tool, I encountered an HTTP Error 403:

How to Unzip Multiple Files with the Command Line

author@junian.dev (Junian Triajianto) — Tue, 08 Oct 2024 16:00:00 +0700

Recently, I downloaded a lot of ZIP files from the internet to my Raspberry Pi. After all the downloads finished, I listed the files and tried to unzip them all. My first instinct was to type unzip *.zip, just like other standard Unix commands (rm, cp, etc.). But to my surprise, it didn’t work at all.

Take a look at the following snippet. This is an example of the output I get when I try to unzip multiple ZIP files using the wrong command.

How to Install Homebrew Package Manager on macOS

author@junian.dev (Junian Triajianto) — Thu, 12 Sep 2024 16:34:14 +0700

If you’re a macOS user and want a convenient way to manage and install software, Homebrew is the go-to package manager. It simplifies installing, updating, and removing apps and command-line tools.

In this guide, I’ll walk you through the steps to install Homebrew and show you how to use it to install software.

Open Terminal

First, we need to access the Terminal, the command-line interface for macOS. Here’s how to do it:

Mac Owner using PC: How to Use the 'open' Command in Windows

author@junian.dev (Junian Triajianto) — Mon, 29 Apr 2024 16:04:57 +0700

As a macOS user, one question that always bothers me is what is the Windows equivalent of the open command used in macOS.

When I’m using the macOS Terminal, I usually open a file using a default program by using the open command like this:

open filename.txt

How about on Windows?

Fix Corrupted Zip Archive

author@junian.dev (Junian Triajianto) — Thu, 02 Apr 2020 09:11:03 +0700

When you download a ZIP file from the internet, there is a chance that you may end up with a corrupted file. This is not necessarily a network issue. The uploader may not have verified the archive correctly.

Here is an example output when trying to unzip a corrupted ZIP file downloaded from the internet.

$ unzip archive.zip
Archive:  archive.zip
warning [archive.zip]:  1520265671 extra bytes at beginning or within zipfile
  (attempting to process anyway)
error [archive.zip]:  start of central directory not found;
  zipfile corrupt.
  (please check that you have transferred or created the zipfile in the
  appropriate BINARY mode and that you have compiled UnZip properly)

Don’t worry about it. The zip command can be used to repair the archive. It will attempt to recover as much data as possible and write it to a new ZIP file. The syntax looks like this: