~/sandbox99 $ whoami
Practical guides on DevOps, cybersecurity, Linux, and automation — written from real-world experience in cloud migrations, Kubernetes, and network security.
~/sandbox99 $ virustotal --scan
Analyze suspicious URLs via VirusTotal threat intelligence engines to detect malware, phishing, and scam domains.
Latest from the blog
Over 200 consultants at Boston Consulting Group got the same strategic task. Same AI tool. Same tim…
In a previous article, we examined the shift from prompt engineering to context engineering — how t…
I've had three buttons at the bottom of my Android phone for years and never thought twice about th…
On October 27, 2026, Anthropic's Frontier Red Team published a report with a headline that made eve…
For almost three decades, Wi-Fi has been the invisible plumbing of modern life. It started as a nic…
You know the ritual. Connect to "Airport_Free_WiFi", a browser sheet slides up before you asked for…
Your build job finishes. Binary in dist/, coverage XML in coverage/, Docker tarball somewhere in /t…
You write a workflow file, push to GitHub or GitLab, and a green checkmark appears a few minutes la…
SSH keys answer one question: may this machine push to the repo? PGP keys answer a completely diffe…
Introduction curl is a command-line HTTP client that doubles as a surgical pentesting tool — crafti…
Introduction Virsh (Virtual Shell) is the command-line interface for managing virtual machines and …
Introduction SCP (Secure Copy Protocol) is a network protocol that allows you to securely transfer …
Jose C. Mendez
Platform & Security Engineer · Taguig, Metro Manila
With over a decade of hands-on experience in IT infrastructure, security, and automation — I document real-world solutions across DevOps tooling, network security, Linux administration, and ethical hacking. Because the best notes are the ones you publish.
