Zero Nighthttps://cabuyal.github.io/blog/Recent content on Zero NightHugoen-usMon, 28 Sep 2026 00:00:00 +0000Reaching My Kali Box Through a Second Router: SSH Across Double NAT, Then Into Hack The Boxhttps://cabuyal.github.io/blog/posts/ssh-into-kali-for-htb/Mon, 28 Sep 2026 00:00:00 +0000https://cabuyal.github.io/blog/posts/ssh-into-kali-for-htb/My Kali machine lives on its own subnet behind a second router. Here&#39;s how I reached it over SSH from my Mac on the main Wi-Fi, and drove a Hack The Box session entirely from the terminal.One Gadget, Three Radios: First Tests With the T-Embed CC1101 Plushttps://cabuyal.github.io/blog/posts/t-embed-cc1101/Wed, 23 Sep 2026 00:00:00 +0000https://cabuyal.github.io/blog/posts/t-embed-cc1101/Why I bought a LilyGO T-Embed CC1101 Plus, and what happened when I pointed it at sub-GHz remotes, RFID cards, and a Wi-Fi network of my own.Finishing What I Started: Building an ESP8266 Wardriver a Year After PWNED 0x08https://cabuyal.github.io/blog/posts/pwned-wardriver/Tue, 01 Sep 2026 00:00:00 +0000https://cabuyal.github.io/blog/posts/pwned-wardriver/A conference workshop left unfinished, a year-long pause, a stubborn GPS, and one feature I wanted badly enough to write myself.Abouthttps://cabuyal.github.io/blog/about/Mon, 01 Jan 0001 00:00:00 +0000https://cabuyal.github.io/blog/about/<p>I&rsquo;m Bernardo, based in Costa Rica. I&rsquo;m into technology and cybersecurity.</p> <p>This blog is where I document my process, including what broke along the way.</p> <p>You can contact me through LinkedIn: linkedin.com/in/bernardoalfaro</p>