Victor's Tech Blog

Understanding Container Networking in Kubernetes

Mar 28, 2026Cloud Native

Container networking remains one of the most complex aspects of Kubernetes deployments. In this post, we explore how pod-to-pod communication works across nodes, the role of CNI plugins, and common pitfalls when configuring network policies for production workloads.

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Building Efficient Data Pipelines with Apache Arrow

Mar 15, 2026Data Engineering

Apache Arrow has transformed how we think about in-memory data processing. This article covers the columnar format advantages, zero-copy reads, and how to integrate Arrow with existing Python and Go data workflows for significant performance improvements.

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Practical Guide to mTLS in Microservices

Feb 22, 2026Security

Mutual TLS provides strong authentication between services but comes with operational complexity. We walk through certificate management strategies, rotation automation, and debugging common handshake failures in a service mesh environment.

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Optimizing PostgreSQL for High-Write Workloads

Feb 8, 2026Database

When your PostgreSQL instance handles thousands of writes per second, default configurations fall short. This post examines WAL tuning, checkpoint optimization, and partitioning strategies that helped us achieve 10x throughput improvement.

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