Or Guetta
Security engineer writing about NetScaler, secure access, identity and PKI, and the hardening work behind them. Profile and resume at guetta.tech.
Featured
My Personal Stack – 2025
A personal look at the stack I use in 2025. From Apple-first client tools to self-hosted services in the cloud, this post sets the context for a short series on how I run my personal setup.
Recent Posts
Should You Block ICMP? The Wrong Question to Ask
A pragmatic look at ICMP filtering. Why blocking all ICMP causes silent network failures, breaks PMTUD, and what you should do instead.
Cloud Free Tier Overview: A Pragmatic Guide
Navigating cloud free tiers—what is actually useful, what is a marketing trap, and where to build your stack.
Shell Scripting for SysAdmins: From Basics to Automation
A practical guide to shell scripting, covering variables, control structures, and automation for system administrators.
TrustOps in Action: Bridging the Dissonance Between Cyber and Business
A methodology to resolve the growing dissonance between organizations and their cyber security departments by shifting from 'blocker' to 'trusted advisor'.