It's about 2 years since I create ditatompel.com (v3) using Material UI. Remake the site back to 2013's design interface using Bootstrap.

Recent Zimbra XXE / SSRF Vulnerability Disclosure (CVE-2019-9670) being actively exploited and could allow an attacker to RCE on an affected Zimbra system.

Between 22 Sep 2016 – 18 Feb 2017 passwords, private messages, API keys, and other sensitive data were leaked by Cloudflare to random requesters.

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.