Zabbix · Linux · Observability — I troubleshoot large-scale monitoring environments and contribute practical fixes back upstream. Operated a Zabbix environment monitoring 20,000+ hosts within KT Cloud infrastructure in Korea (on-site contract).
📍 Seoul, KR · 📫 qorwlsdk1995@naver.com
5 merged contributions across two official Zabbix repositories + 1 upstream-adopted deployment analysis
zabbix/zabbix-docker — 4 merged PRs + 1 adopted analysis
| PR | What it fixes | Status |
|---|---|---|
| #1942 | ZBX_ALLOW_HTTP_AUTH authentication regression — traced to a frontend-config redesign commit that silently fell back to defaults; restored the documented variable and flagged the related regression #1940 |
✅ Merged into 7.4 |
| #1945 | Obsolete ZBX_JAVAGATEWAY_ENABLE references that led users following the docs into a silent no-op Java Gateway setup — removed across READMEs, env files, and kubernetes.yaml |
✅ Merged into 7.4 |
| #1946 | Wrong agent config include path in READMEs (zabbix_agent.d → zabbix_agentd.d) — the documented path was never included by the agents, so user alias configs were silently ignored |
✅ Merged into 7.4 |
| #1837 | 10 documentation errors across server-mysql, web-nginx-mysql, and agent image READMEs |
✅ Merged |
| #1937 | Analysis of #1930 — snmptraps volume implicit-null parsing incompatibility with some Compose parsers; maintainer adopted a similar patch |
🔁 Analysis adopted upstream |
zabbix/community-templates — 1 merged template
| PR | Contribution | Status |
|---|---|---|
| #745 | New Zabbix 7.4 community template — a lightweight Linux security/audit baseline (agent 2): 4 operational signals behind fully macro-driven thresholds (incl. per-filesystem context macros), with audit-oriented tagging (class=security) so problems can be filtered and exported as compliance evidence. Designed to layer onto hosts alongside the stock Linux templates, not replace them |
✅ Merged |
My troubleshooting workflow mirrors the support cycle: reproduce → diagnose → resolve → document.
- MORI-SOC — Zabbix-integrated SOC-lite and audit-evidence workflow (FastAPI · PostgreSQL · Docker Compose). Turns monitoring/security signals from Zabbix, Trivy, FleetDM, Wazuh, and Loki into structured triage records, incidents, and who/when/what audit trails for ISMS-P / ISO 27001 readiness.
- Trivy Agent Lab — lightweight read-only vulnerability-scanner agent built around scan → normalize → push → heartbeat, keeping agents dumb and intelligence central.
- AWS Security Audit Tool — 100% read-only Bash/boto3 auditing of IAM, network, data encryption, and EKS, with auto-generated executive and per-domain reports.
Zabbix SNMP Linux Docker/Compose Python Shell PostgreSQL/MySQL Ansible Grafana Loki AWS Azure
AWS Certified Solutions Architect – Associate · All repositories maintained with bilingual EN/KO documentation.