TLDR Tech / InfoSec
VCSA Hardening & Logging Tool (GitHub Repo)
A Bash-based automated hardening script for VMware vCenter Server Appliance (VCSA) that shifts the default-permit posture to a Zero Trust, default-deny model via kernel-level iptables micro-segmentation, IP allowlisting on SSH/443/VAMI ports, outbound exfiltration controls, and brute-force rate limiting. Forensic command auditing patches the root shell profile to pipe every executed bash command to Syslog with full metadata, supporting incident response and anti-tamper detection. Three selectable security modes (Standard Hardening, Internet Blocking, and Zero Trust) accommodate varying environment constraints, with a --dry-run flag and console-accessible rollback procedure to mitigate lockout risk.
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