Following these steps allow you to configure your Android, iOS, MacOS, and Linux machine using IPsec/XAuth (Cisco IPsec) VPN.

This is the next part after you successfully set up your own IPsec VPN server. Following these steps allow you to configure your Android, iOS, MacOS, and Linux machine using IPsec/L2TP VPN.

A few years ago, I've found this gem which allow us to set up our own IPsec VPN server with L2TP, XAuth and IKEv2 on Ubuntu, Debian, RHEL, and CentOS.

Gmail Confidential mode allow G Suite users sending emails with expiration date, restrict to forward, copy, print, or download email content or attachments.

The struggle migrating from 1 platform to another platform with different database backend and program languages.

ZombieLoad is security flaw in Intel processors that allows malicious hacker to steal any data that’s been recently accessed by the processor.

MacOS isn't associated with Linux in any way. What we call macOS nowadays is operating system developed by NeXT.Inc called NeXTstep and it based from BSD

Windows launch is a new terminal application for command-line users with features like tabs & theming. As of today, the Windows Terminal & Windows Console is open source.

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.