Strengthening server security by leveraging port knocking techniques in conjunction with iptables firewall functionality.

This comprehensive guide leverages VirtualBox to build a virtualization lab on a local network, offering a flexible and cost-effective testing environment.

A simple PHP script for validating email addresses using format, MX record, and SMTP mailbox checks.

Tutorial for connecting to the internet with the ZTE AC2726i Smart Fren modem (dual-mode USB modem) using wvdial.

How to configure the PHPMyAdmin application so that it can be used to manage multiple MySQL database servers.

To safeguard sensitive email content, we can utilize GnuPG/PGP. GnuPG/PGP is employed to encrypt the body or message of an email.

Understanding how email systems work: what information are available from an email message, with strategies for maintaining privacy during information exchange through email.

Hardening SSH access by disabling root SSH access, change the default port, and utilize public and private keys.

A step-by-step guide to installing PHP, Apache, MySQL, and phpMyAdmin on Arch Linux.

How to read a set of numbers 0 and 1 (Binary) into decimal. Then how to use the decimal number to translate it into text (ASCII) using an ASII table

Since I'm the type of person who finds it difficult to work if there are lots of browser tabs open in the browser, I made a simple script so that devilzc0de radio can be listened to via Amarok.

This article I got from an old board blacksun.box.sk written by Raven. Very good and entertaining article. Might be useful for you guys who ask for help especially to underground forums, underground newsgroup, or IRC channel.