Category: cyberscurity

Embedded Firewalls ( Part 2)

Post author By mominux
Post date October 5, 2025
Categories In blog post, cryptographic, cyberscurity, embedded linux, embedded platforms, firewall, system hardening

In Part 1, I told a little bit of a story. We left the “stupid black boxes” era behind, looked at why embedded devices must have network-level protection, and then unpacked how and why Linux firewalls work with nftables, and why it’s a much cleaner, modern approach compared to the old iptables/xtables world.We also mapped […]

Embedded Firewalls ( part 1 )

Post author By mominux
Post date September 15, 2025
Categories In blog post, cyberscurity, embedded linux, embedded platforms, firewall

For a long time, embedded devices were just “stupid black boxes”, especially in domains like industrial control and automotive. To be fair, in their own time, these systems were impressive engineering feats. But compared to today’s connected and software-heavy platforms, they really were “stupid”: no networking, no remote access, and therefore not much to secure. […]