https://danran.rocks

Twice in my life now, I have gone through the rigorous and tedious process of purchasing a Yubikey & a Yubikey Backup, and using Dr. Duhs Yubikey guide to properly set up my Yubikeys GPG Keys in a secure, offline, air-gapped environment. This tutorial can be used in conjunction with Dr. Duh’s Yubikey guide, so that you can safely set up your Yubikey (for more than just GPG) in an offline Tails…

Twice in my life now, I have gone through the rigorous and tedious process of purchasing a Yubikey & a Yubikey Backup, and using Dr. Duhs Yubikey guide to properly set up my Yubikeys GPG Keys in a secure, offline, air-gapped environment. This tutorial can be used in conjunction with Dr. Duh’s Yubikey guide, so that you can safely set up your Yubikey (for more than just GPG) in an offline Tails…

Twice in my life now, I have gone through the rigorous and tedious process of purchasing a Yubikey & a Yubikey Backup, and using Dr. Duhs Yubikey guide to properly set up my Yubikeys GPG Keys in a secure, offline, air-gapped environment. This tutorial can be used in conjunction with Dr. Duh’s Yubikey guide, so that you can safely set up your Yubikey (for more than just GPG) in an offline Tails…

Twice in my life now, I have gone through the rigorous and tedious process of purchasing a Yubikey & a Yubikey Backup, and using Dr. Duhs Yubikey guide to properly set up my Yubikeys GPG Keys in a secure, offline, air-gapped environment. This tutorial can be used in conjunction with Dr. Duh’s Yubikey guide, so that you can safely set up your Yubikey (for more than just GPG) in an offline Tails…

Test caption Test writing

Test caption Test writing

This is a test with pic This is my test caption!!! Here is where we write things on iOS!

This is a test with pic This is my test caption!!! Here is where we write things on iOS!

This is a test with pic This is my test caption!!! Here is where we write things on iOS!

This is a test with pic This is my test caption!!! Here is where we write things on iOS!

We are getting ready to shut this site down. All of the info on this site will be migrated to https://danran.rocks . SO PLEASE BOOKMARK IT and go there for more tutorials from here on out. Thanks you for following nerd-tech. Now it’s time to follow Dan Ran.

This site is shutting down shortly. I had a great time writing at nerd-tech.net, but now I have decided to migrate this site on over to my personal website https://danran.rocks. All of this sites content (aside from the Oddcake pictures) as well as new content/tutorials, can be found at my danran.rocks website. Please bookmark me at https://danran.rocks, as I will be continue to write…

How to make a live backup of your Raspberry Pi Ubuntu/Raspberry Pi OS Server to create live bootable ISO Images on an external drive

Over the course of a few years, I have been teaching myself how to build secure and functional web servers on the Raspberry Pi. While building these systems, I have run into a problem. I have been unable to figure out how to fully backup my running Ubuntu 20.04 server system (including root files), into a bootable ISO file, in case of severe disaster or hackage. Until now, most tried solutions…

The Trick to compiling Modsecurity-nginx (>v.1.24) on Raspberry Pi

To any users trying to compile the ModSecurity module for nginx 1.21.5 and up, there are some changes to be made according to this github issue. 2. The issue is related to a change in nginx (now nginx is built with the PCRE2 library by default).PCRE2 support must be added to the library (libmodsecurity) and then to the connector. Applying just the connector’s PR will lead to enormous memory…

If you are using a Raspberry Pi as a LEMP (Linux, Nginx, MariaDB, PHP) server to host your website, you may want to consider speeding up your site on the server level by using the pagespeed module for Nginx. In this tutorial, we are going to learn how to compile (build) and install google’s ngx_pagespeed module for the Nginx Mainline Version 1.21.5, on a Raspberry Pi 3, Raspberry Pi 4, or any 64…

How to access and delete saved system Mail (mbox) in Mac OS Big Sur terminal

If you are using crontab or some other terminal based system applications on Mac OS Big Sur, you may encounter a message saying “You have mail” after opening your Mac OS Terminal application. This is a system message telling you that you have system mail in your systems mail box, NOT, in the Mac Mail GUI application. To read your mail, you can type “mailx”, in your Terminal application. After you…

How to batch convert images to WebP with Imagemagick on MacOS

1. Install homebrew by opening up your terminal application and copying and pasting the following line of code in it. Then hit enter. /bin/bash -c "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/HEAD/.sh)" 2. Run the following command in your terminal application: brew install imagemagick /bin/bash -c "$(curl -fsSL…