Serdar Tekin
Co-Founder & Head of Infrastructure
Co-founder of Raff Technologies. Runs the cloud operations platform — from storage cluster scaling and network architecture to new product development. Builds infrastructure on hardware we own.expertise
27 articles published
Blog Posts(11)
Tutorials(5)
How to Use Raff S3 Object Storage with AWS CLI
Connect to Raff S3-compatible object storage using the AWS CLI. This tutorial covers credential setup, bucket operations, file uploads, pre-signed URLs, and lifecycle policies.
Deploy a Node.js App with PM2 on Ubuntu 24.04 (Production-Ready)
Deploy a production-ready Node.js application with PM2 process manager on a Raff Ubuntu 24.04 VM. Covers cluster mode, Nginx reverse proxy, zero-downtime reloads, and startup persistence.
Deploy a Multi-Container App with Docker Compose on Ubuntu 24.04
Deploy a multi-container application with Docker Compose on a Raff Ubuntu 24.04 VM. This tutorial covers a Node.js app with PostgreSQL and Redis using Compose profiles, health checks, and named volumes.
How to Deploy Open WebUI with Ollama on Ubuntu 24.04
Deploy Open WebUI with Ollama on a Raff Ubuntu 24.04 VM for a self-hosted ChatGPT alternative. Run local AI models privately with a full web interface.
How to Install Docker on Ubuntu 24.04
Install Docker Engine on a Raff Ubuntu 24.04 VM with this step-by-step tutorial. Covers repository setup, installation, Docker Compose, and running your first container.
Guides(10)
High Availability vs Disaster Recovery Explained for Small Teams
Learn how high availability and disaster recovery differ for small teams. Understand uptime, failover, RTO, RPO, backups, and when you need both.
IPv4, IPv6, and Dual-Stack Networking for Cloud Servers
Learn how IPv4, IPv6, and dual-stack networking differ for cloud servers. Understand DNS, firewalls, routing, and when dual-stack is the safest path.
Your First Cloud Server: What to Do After You Provision It
Learn what to do after provisioning your first cloud server. A practical post-deployment checklist covering login, updates, users, firewall, monitoring, and first deployment.
Kubernetes vs Docker Compose for Small Teams: When to Switch
Learn Kubernetes vs Docker Compose for small teams by comparing complexity, scaling, recovery, and team fit. Choose the right container path on Raff.
Zero-Downtime Database Migrations: What Actually Works for Small Teams
Learn zero-downtime database migrations for small teams. Understand compatibility windows, backfills, cutovers, and safer production rollback planning on Raff.
PostgreSQL Replication vs Backups vs Snapshots: What Protects What?
Learn PostgreSQL replication, backups, and snapshots by understanding what each one protects, where each one fails, and how to design safer recovery on Raff.
Observability for Small Teams: Metrics, Logs, and Traces
Learn observability for small teams by understanding when to use metrics, logs, and traces. Build a practical debugging and reliability strategy on Raff.
Shared vs Dedicated vCPU: How to Choose the Right VM Class
Learn shared vs dedicated vCPU differences, workload fit, pricing trade-offs, and how to choose the right Raff VM class for performance and cost.
Caddy vs Nginx: Which Reverse Proxy Should You Use in 2026?
Learn when to choose Caddy vs Nginx for reverse proxying in 2026. Compare HTTPS, configuration, performance, and operations for modern cloud deployments.
Cloud Server Backup Strategies: Snapshots, RPO, and Recovery Planning
Learn how cloud server backup strategies work including snapshots, automated backups, RPO, and recovery planning to protect workloads running on cloud infrastructure.