Operations Board

Real Operations & Troubleshooting

Hands-on experience resolving incidents, diagnosing production platforms and keeping critical services operating under pressure.

Operational areas

Linux/AlmaLinux and Windows Server

Hosting with Plesk/cPanel

DNS, SSL/TLS and Cloudflare

Email: Postfix, Qmail, Exim, MailEnable, SpamTitan

Virtualization: VMware, Proxmox, ESXi, vCenter

Backups: Veeam, snapshots, restores

Containers: Docker, Docker Compose, Kubernetes/K3s

Observability: Grafana, Prometheus, Loki, PMM, PRTG, BitNinja

Networking: SSH, Tailscale, firewall, CSF, iptables

Databases: MySQL/MariaDB, PostgreSQL, Redis

Troubleshooting cases

PHP process saturation.

Concurrent connections.

Ports, permissions and ownership in containers.

SMTP issues, bounces and IP reputation.

SPF/DKIM/DMARC.

DNS propagation and controlled changes.

Migrations with rollback.

DatasourceNoData alerts in PMM/Grafana.

Longhorn, CSI and distributed storage.

Exim/Postfix/Plesk/cPanel log analysis.

Internal networking between microservices and reverse proxies.

Health checks, metrics and curl-based validations.

Operational mindset

My experience does not come only from lab work. It has been built by resolving real incidents where operational continuity directly impacts business outcomes.

Runbook board

Stability first.
Automation next.
Scalability after that.
Validation before moving traffic.
Observability before blaming code.
Rollback before destructive changes.
Documentation and runbooks.

Technical validation

Health checks before traffic changes.
Log, metric and alert review for fast decisions.
Planned rollback before high-risk changes.
Incident documentation and operational learning.

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