Dinko Korunić

Principal Cloud Architect at HAProxy Technologies and Executive Product Manager at Crossvallia, based in Zagreb, Croatia. 30+ years across the Unix/Linux stack — kernel internals, eBPF/XDP, TLS and high-performance load balancing.

Before that: Linux/Unix security, system programming and teaching at SRCE and CARNet, CARNet-Debian maintainer, IRC admin on Undernet, IRCnet and idolNET, and Linux workshops for BUG magazine. Board member at InfoMAR.

$ ls ~/work

Selected open-source projects — systems tooling in Go, Rust and C.

betteralignDetect and fix struct field alignment to reduce memory usage in Go programs.Go pktstat-bpfeBPF-based Ethernet traffic monitor using TC, XDP, kprobes and cgroups.C iSMCApple SMC CLI — temperatures, fans, battery, power, voltage and current on macOS.Go gopherdSmall, feature-rich init system for containers and Kubernetes workloads (HAProxy).Go findlargedirQuickly locate flat "blackhole" directories with pathological entry counts.Rust pktstatLightweight Ethernet interface traffic monitor and reporter.Go dnstraceDNS query tracing and analysis tool.Go secretbroInterposition library for filesystem access control of Kubernetes secrets.Rust e-dnevnik-botGrade and exam alerting bot for the Croatian e-Dnevnik school system.Go minifindMinimal find reimplementation with the emphasis on speed.Rust axfr2hostsFetch DNS zones via AXFR and dump them in Unix hosts format.Go uptime_hackSmall Linux kernel module that tampers with reported uptime.C

all repositories →

$ ls -t ~/talks

Slides from lectures and conference talks — SRCE, CARNet, InfoMAR, DORS/CLUC, FSec and others. Mostly in Croatian.

2026Korunic eBPF3.5 MB
2026Korunic eBPF22.8 MB
2021ITshowoff Dinko0.6 MB
2021Sigurnost Web aplikacija sa HAProxy LB om2.1 MB
2021VSS kriminalitet3.6 MB
2014VSS2014 kriminalitet3.6 MB
2011CUC2011 Dinko1.1 MB
2011DORS2011 Dinko1.0 MB
2011FSEC2011 Dinko2.6 MB
2010CARNet SNMP ZenOSS Radionica0.2 MB
2010CUC2010 Dinko0.7 MB
2010DORS2010 Dinko0.7 MB
2009T Mobile DNS0.6 MB
2006Sigurnost na Internetu III0.3 MB
2006Tru64 Alati0.4 MB
2005Kernel kompiliranje1.6 MB
2005Sigurnost na Internetu II0.6 MB
2005Tru64 Mreza0.5 MB
2005Tru64 Performanse0.2 MB
2004Linux sigurnost0.3 MB
2004Netfilter1.9 MB
2004Sigurnost na Internetu0.6 MB
2003Bind 91.8 MB
2003Bind jednostavnije0.8 MB
2003CN Debian1.1 MB
2003CN Debian I2.4 MB
2003RCS CVS1.1 MB
2003Servisi sigurnost0.7 MB
2003Sigurnost poste PGP3.2 MB
2003Webalizer1.4 MB

browse /pdf/ →

$ ls -t ~/writing

Manuals, papers and other written work. Mostly in Croatian.

2009Korunic Prikupljanje i analiza DNS prometa0.8 MB
2008DNS prirucnik1.0 MB
2006MTA testiranje0.5 MB
2006Solaris vs Linux1.0 MB
2005OOSimscript0.2 MB
2004CAR6Net bind90.2 MB
2004CAR6Net kernel0.3 MB
2004CAR6Net qpopper0.1 MB
2004CAR6Net sendmail0.1 MB
2004Produkcija1.0 MB
2003C Lexer0.2 MB
2003CARNet Debian x86 II upute0.7 MB
2003Korunic Memorije MO1.0 MB
2003Korunic Zemris seminar0.3 MB
2003Solaris 8 upute1.8 MB
2003Zesa elaborat0.2 MB
2002OS2seminar Blowfish0.2 MB
2002OS2seminar DiffieHellman0.2 MB
1996Maturalna radnja matrice0.3 MB

browse /pdf2/ →

$ ls ~/code

github.com/dkorunicCurrent open-source work — Go tools, utilities and libraries. sources/Archive of C, C++, Python and shell code from the last couple of decades. projects/A few old projects — HybServ, topuser, gwstat and friends. configs/Assorted configuration files — iptables, QoS, Squid, Vim.

$ ls ~/astrophotography

Deep-sky nebulae and galaxies, shot from a Bortle 8 backyard in Zagreb.

The Pacman Nebula

NGC 281

The Wizard Nebula

The Crescent Nebula

The Pelican Nebula

IC 5070

The Western Veil Nebula

The Iris Nebula

The Pinwheel Galaxy

Bode’s Galaxy

all photos and details →

$ finger dkorunic

Email: dinko.korunic [at] gmail.com
PGP: 0xEA160D0B
Fingerprint: 48BF A3C2 6FB9 14EC B05C A683 6D3B AED1 EA16 0D0B
Elsewhere: my dear dad's homepage — Petar Korunić