hardening

SSH hardening is basic but still worth doing carefully. I disable password auth, restrict root login, and pair strong settings with operational practices like host key monitoring and per-user key lifecycle management. Security without maintainability

Privilege escalation detection is rarely one command. I look for unexpected SUID binaries, writable service units, dangerous sudo rules, and kernel or package drift. These checks are not glamorous, but they catch a lot of real misconfigurations that a

Redis should not be assumed safe just because it sits inside a VPC or private subnet. I enable authentication or ACLs, bind deliberately, and keep the service off public networks entirely. Fast infrastructure becomes dangerous infrastructure when team

Container security starts with the image build. I use small trusted bases, non-root users, explicit file ownership, and multi-stage builds that leave tooling behind. The fewer packages and privileges in the final image, the less there is to exploit.