Hashing and certificates both get filed under "cryptography," but they're answering two genuinely different questions. A hash answers: has this file changed since I last checked? A certificate, even a
A wireless router arrives from the factory configured to work, not to be secure. Those are different goals, and the gap between them is exactly what this lab walked through: taking a consumer-grade TP
The Wazuh lab I'd worked through earlier caught an attack by watching a single host's own logs. This lab tackled a related but genuinely different problem: catching the same kind of attack by inspecti
Every firewall lab I'd worked through up to this point answered the same basic question: was a connection allowed or blocked? This lab asked a different one entirely: if an attack gets through anyway,
Host-based firewalls, the kind I'd worked with in earlier labs, protect one machine at a time. Network-based firewalls work at a different point entirely, sitting between an entire network segment and
It's tempting to think of blocking a network service as a single switch: RDP off, FTP off, done. This lab made clear that's rarely how it actually works. Both Remote Desktop and FTP, it turns out, are
Most firewall thinking defaults to the network level: which IPs, which ports, which subnets. This lab worked at a different, more granular layer entirely, blocking internet access for one specific use
Windows Active Directory makes access control visible through a GUI, OUs, group membership dialogs, policy editors you click through. Linux strips that away and leaves you with the raw mechanics: a ha
Access control sounds abstract until you actually build it. "Limit who can access what" is easy to say, but in a real Windows domain that sentence turns into a specific sequence of decisions: how user
