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How to SSH with ProxyJump in Linux
Secure Shell (SSH) is a widely used protocol for remotely connecting to a computer system, typically over a network. It provides encrypted communication and authentication to ensure secure access to a remote machine. In this article, we will discuss how to SSH with ProxyJump in Linux. ProxyJump is a feature in OpenSSH which allows you […]
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How to Replace String in Files without Text Editor in Linux
As a Linux user, it’s important to know how to modify text files through the command line. One common scenario is changing a single line in a text file, such as enabling or disabling a feature. But what if the OS doesn’t have any text editor installed at all? In this tutorial, we’ll cover how […]
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How to Install the Latest OpenWRT on Arduino Yun
By the time I am writing this, this might be the first article that tells you how to install OpenWRT on Arduino Yun because no one talks about it. Also, Arduino Yun is already reached its end of life, and the version history is not well documented in each article so I will write it […]
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How to Find and Connect to Hidden Wifi Network
Suppose you have a device that communicates using wifi, and you already know the password, but you can’t find the SSID name on your phone or computer. How can you connect? In this post, I will show you how to find and connect to the hidden network using Kali Linux. Prerequisites Getting SSID Name Make […]
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How to Install Alfa AWUS036NH Driver for Kali Linux
This wifi adapter is an important weapon for penetration testers due to its feature that supports monitor and packet injection mode on a 2.4Ghz network. However, even if Alfa said it is already supported out of the box in Kali Linux, I found it unstable out of the box. Sometimes it goes undetected. So here […]
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How to Do Buffer Overflow Attack on 64bit Machine
Professor’s course material was out of date. He made an example of a buffer overflow attack several years ago. Then here I am, asked to fix the code to work on a modern machine, 64bit Kali Linux. There should be no difference with other Linux; you can practice this on any 64bit Linux machine. Prerequisite […]
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How to Access SOM9331 Serial Console in Linux
I got this old hackable mini router board. It comes with OpenWRT but I can’t seem to connect this via USB Serial. It turns out that the driver is not installed. Installation is quick but there is a minor change needed in order to build the driver on a recent kernel. So will write here […]
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How to Enable HTTPS on Your Apache Ubuntu Web Server
I thought this is an easy task, but after searching for various ways on the internet, it is not as simple as I imagined. There are many ways to enable HTPPS on your web server depending on what server software is used, the operating system, and where the server is running. In my case, I […]
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Easy Fix when Pop-OS Login Screen Shown on The Wrong Monitor
I turned on my newly installed Pop OS and then suddenly the login screen is located on the left monitor. It’s horrible! Because I put my left monitor into a vertical position, and the Pop OS login screen orientation is in horizontal mode. Therefore I had to tilt my head -90 degrees to type my […]
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How to Run Linux on RISCV in Arty A7-100T FPGA
It’s been tempting for me to try running open-source software on top of open-source hardware. SiFive provides a bitstream for Arty A7 called Freedom, but it seems that the repository is dead now. The other interesting alternative to try is VexRiscv, and everyone keeps posting about Arty A7 35T while I only have the 100T […]
