JW Tech Tips

Today I found a very good tool (Free and Open Source) to create bootable USB drives for multiple operating systems, it calls Ventoy. As a computer geek, you may need to install different operating systems on the computer. Traditionally, if we’re going to create a Linux or Windows boot drive, we need to write the ISO image to the USB stick once. Every time we change the system, we write the USB drive again. Doing so not only hassles, but…

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If you don’t have a vauild Proxmox VE subscription, you will not able to run any APT related command such as apt update, upgrade, install and so on. This blog will show you how to jump over this limit on Proxmox VE. First, login the Proxmox VE console and go the the shell, then run the follwing command. Then, add # to comment out the enterprise list, click Ctrl + X and Y to save your change. Then run the…

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Hello, As we all know, OpenWrt is a well-known open source router system, and Unraid is also a well-known three-in-one system of NAS, virtual machine, and docker. Both systems have many users. In this post, I will show you how to run OpenWrt as a virtual machine in Unraid. First of all, we need to download the x86_64 image from the OpenWrt official website. Here I choose the 19.07 version. If you have the ability to compile your own OpenWrt…

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During my use of OPNsense, I wanted to do port forwarding for my LibreSpeed speed test tool, but after some searching, I couldn’t find any helpful resources and tutorials about OPNsense, so I decided to write a simple tutorial here to help you configure OPNsense port forwarding. First, let’s go to Firewall -> NAT -> Port Forward. Then click Add button at the top right corner. Secondly, change the Destination to WAN address since we want to access LibreSpeed from…

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To change the IP address of your OpenWRT router, you could edit it through the SSH or plug the keyboard and monitor to your custom build router. Step 1: type in vi /etc/config/network in your console, then press ENTER Step 2: Press “i” on your keyboard to enable edit mode, then change the IP address to whatever you want. Step 3: Press “Esc” key, type :wq (w means write, q means quit), then press ENTER to apply. Last Step: type…

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The Raspberry Pi Foundation today (June 24) officially released the Raspberry Pi 4 Model B. Raspberry Pi is a world-renowned basic computing microcomputer, which is highly sought after by developers, programmers, geeks and other people around the world. This generation of Raspberry Pi 4 Model B has been developed for 3 years. The memory (RAM) has been upgraded from 1GB to 4GB. The introduction of USB 3.0 supports dual-screen 4K output, and the CPU and GPU are faster. H.265 decoding….

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Have you ever known where the charm or power of Linux comes from? That is, because of the numerous distributions, the Linux camp is growing, and each distribution has a large number of users. Developers voluntarily invest in related projects. Linux distributions can be described in a variety of ways, and they are designed to meet every desired demand. This article is intended to give a brief account of why a distribution exists, what the target users of the distribution…

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I know what you are thinking: The Raspberry Pi can only be used in tinkering, prototyping and personal hobbies. It can’t actually be used in business. There is no doubt that this computer has a relatively low processing capacity, a vulnerable SD card, a lack of battery backup, and a supported DIY nature, which means it won’t be a professional that can perform the most critical operations at any time. A viable alternative to a well-installed, configured commercial server. But…

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Git is a free and open source distributed version control system designed to handle everything from small to very large projects with speed and efficiency. Git is easy to learn and has a tiny footprint with lightning fast performance. It outclasses SCM tools like Subversion, CVS, Perforce, and ClearCase with features like cheap local branching, convenient staging areas, and multiple workflows. This cheat sheet summarizes commonly used Git command line instructions for quick reference. Configure Git Configure user information (username email) for all local repositories git config –global…

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