Tutorials
Step-by-step technical guides on Docker, Linux, Python, Go, and more.
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Ubuntu upgrade postgres to version 10
In this tutorial we are going to upgrade PostgreSQL 9.X to 10. The following steps will work for Ubuntu 14.04, 17.04 and 16.04. Check our guide for easy upgrade with some troubleshooting also.
Flask abort with json example
In this short tutorial we show an example on how to return a json when using flask.abort: abort(jsonify(message="Message goes here"), 400). See alse an alternative using flask handlers to return a json.
linux hardware info command: inxi
In this tutorial we use inxi to show software and hardware information. Inxi command will show all the information several commands shows like lscpu, hwinfo, lshw, dmidecode, lspci. You can install inxi from official repositories of well know linux distros.
Alfa AWUS036NHA on Kali Linux 2026: Monitor Mode & Packet Injection Setup
Set up Alfa AWUS036NHA on Kali Linux 2026. The AR9271 chipset uses native ath9k_htc driver — no DKMS needed. Enable monitor mode and test packet injection with aircrack-ng.
Nmap: how to install nse scrips
In this tutorial we are going to add new scripts to nmap, this will allow to do an Advanced vulnerability scanning with Nmap NSE scrips. Follow this simple steps to download new nse scripts and to enable them.
How to create a vmware OVA from a virtualbox ova
If you want to import an ova generated with virtualbox you will get the error: "Line 65: Unsupported hardware family 'virtualbox-2.2'.". In this tutorial we are going to to create an OVA file compatible with vmware.
How to use the Raspberry Pi as RTSP Stream Viewer
In this tutorial, we are going to use raspberry pi has a RTSP Stream viewer for Ubiquiti security camera systems
Using bettercap for wifi wardriving using Raspberry pi
In this tutorial we explain how to configure a raspberry pi to use bettercap for wireless wardriving. In particular we use the caplet airodump.cap. We also recommend which hardware to use for wardriving with a raspberry pi. Following this steps you will be able to install bettercap on a raspberrypi.
How to use crazyradio and mousejack
In this tutorial we explain how to use the crazyradio device to do a vulnerability assesment of wireless devices. We explain how to install all the tools required and how to change the firmware of the crazyradio. Check here how to sniff wireless keyboard. If you find that your device is vulnerable you need to update the device firmware.
How to use python to access google Spreadsheets
In this tutorial, we are going to use gspread python library to access Google Spreadsheets. We are going to see how to set up credentials on your google account and then how to use the python library to access the spreadsheet. As an example, we will provide a script the calculates the total portfolio value and saves it on the spreadsheet to have a historical data