Dinko Korunic dkorunic

Hi, I'm Dinko Korunić

Systems engineer and security practitioner based in Zagreb, Croatia. Currently Principal Cloud Architect at HAProxy Technologies and Executive Product Manager at Crossvallia.

Over the last 20+ years I have worked as a security advisor and systems integrator, with a focus on Linux internals, high-availability infrastructure, observability and network performance. Previous engagements span the Croatian President's Office, multiple governments, the Croatian National Bank, private banks, ISPs and Alexa top-300 sites.

Education: MSc, University of Zagreb

"If I had 8 hours to chop down a tree, I would spend 6 of those hours sharpening my axe."

What I work on

Load balancing & application delivery — day job at HAProxy Technologies.
Linux & kernel tooling — eBPF, tracing, performance, filesystem behaviour.
Systems programming — primarily Go and Rust, with C and Python where they fit best.
Open-source utilities that scratch real operational itches (see below).

Selected projects

Project	Description	Language
betteralign	Detect and fix struct field alignment to reduce memory usage in Go programs.	Go
iSMC	Apple SMC CLI — decode temperature, fans, battery, power, voltage and current on macOS.	Go
pktstat-bpf	eBPF-based Ethernet traffic monitor using TC, XDP, kprobes and cgroups.	C / Go
pktstat	Lightweight Ethernet interface traffic monitor and reporter.	Go
e-dnevnik-bot	Grade/exam alerting bot for the Croatian e-Dnevnik school system.	Go
findlargedir	Quickly locate flat "blackhole" directories with pathological entry counts.	Rust
dnstrace	DNS query tracing and analysis tool.	Go
uptime_hack	Small Linux kernel module that tampers with reported uptime.	C
axfr2hosts	Fetches DNS zones via AXFR and dumps them in Unix `hosts` format.	Go
minifind	Minimal find reimplementation with the emphasis on speed.	Rust
secretbro	Interposition library for filesystem access control of Kubernetes secrets directories.	Rust