Merve Arslan
WordPress & Hosting Expert
Creating guide content on WordPress performance optimization, hosting selection, and e-commerce infrastructure.
14
articles
Merve Arslan — articles
What Are SLI, SLO and SLA? A Guide to Service Reliability Metrics
Saying a service is "reliable" is not enough - you need to define it with measurable metrics. SLI (Service Level Indicator), SLO (Service Level Objective), and SLA (Service Level Agreement) are the building blocks of this measurement. Born from Google's Site Reliability Engineering (SRE) approach, t
MongoDB Sharding for Horizontal Scaling - Big Data Architecture
A single MongoDB server is limited by disk capacity, RAM, and CPU. As the data set grows, queries slow down, write operations create bottlenecks, and backup times increase. Sharding eliminates these limits by distributing data across multiple servers (shards). However, a poor shard key choice can ma
Docker Multi-Stage Build: Creating Production-Ready Images
Standard Dockerfiles typically include build tools, development dependencies, and unnecessary files in the final image. This bloats image size and expands the attack surface. Docker multi-stage build lets you define multiple stages in a single Dockerfile, copying only production-essential files into
Multi-Tenant Environment Management with Kubernetes Namespaces
Sharing a single Kubernetes cluster among multiple teams, projects, or customers saves costs, but without isolation, security and resource conflicts are inevitable. Namespaces provide logical partitioning; ResourceQuota, LimitRange, NetworkPolicy, and RBAC make those partitions secure and controlled
Server Configuration Automation with Ansible: Writing Playbooks
Installing the same packages on dozens of servers, distributing configuration files, and restarting services takes hours when done manually via SSH, with high error risk. Ansible uses an agentless architecture to configure your servers over SSH with YAML-based playbooks. This guide covers inventory
Setting Up a Server Monitoring Stack with Prometheus + Grafana
Monitoring your servers' CPU, memory, disk, and network metrics in real time is the foundation of proactive issue detection. Prometheus handles metric collection and querying, while Grafana provides the visualization layer - together they form an excellent monitoring stack. This guide walks you thro
Magento 2 Hosting Optimization: Redis, Elasticsearch and Varnish Settings
Magento 2 is one of the most powerful enterprise-level e-commerce platforms, but that power translates to sluggishness on a poorly configured server. Default installations can see page load times of 5-8 seconds. With Redis cache, Elasticsearch, Varnish full-page cache, and PHP-FPM optimization, it's
WAF Setup: ModSecurity Integration with Nginx
A Web Application Firewall (WAF) is a security layer that protects your web applications against SQL injection, XSS, file inclusion, and other OWASP Top 10 attacks. ModSecurity is the most widely used open-source WAF engine and integrates with Nginx. This guide covers ModSecurity installation, OWASP
Zero Trust Network Architecture: Implementation Guide for Cloud Environments
Traditional network security relies on the "castle and moat" model: everything outside is a threat, everything inside is trusted. But cloud environments, remote work, and microservice architectures have blurred this boundary. Zero Trust architecture eliminates this assumption: no user, device, or ne
Free SSL with Let's Encrypt: Setting Up Automatic Renewal
Let's Encrypt is a certificate authority that provides free DV (Domain Validation) SSL/TLS certificates, aiming to make internet traffic encryption widespread. As of 2024, it is the world's largest certificate provider with over 300 million active certificates. Certificates are valid for 90 days, an
RAID 1, 5 and 10 Comparison: Server RAID Guide
RAID configuration on dedicated servers: differences between RAID 1, 5, and 10, performance comparison, and choosing the right RAID level for your workload.
Dedicated Server Migration: Zero Downtime Guide
Minimize downtime during dedicated server migration: data synchronization with rsync, DNS strategy, database migration, and rollback plan.
10 Critical Criteria to Consider When Choosing Hosting
Learn 10 critical criteria when choosing hosting, including uptime, disk type, support quality, and scalability. A concrete checklist to avoid the wrong choice.
E-Commerce Hosting: WooCommerce and Magento Infrastructure Requirements
Choose the right hosting infrastructure for your e-commerce site. We compare WooCommerce and Magento CPU, RAM, disk, and cache requirements by store size.