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Monitoring tutorial - IT technology blog

How to Install and Configure OpenObserve: A Next-Generation Logs, Metrics, and Traces Solution to Replace ELK Stack with 140x Lower Storage Costs

By admin June 29, 2026

OpenObserve is a Rust-based observability solution that stores logs, metrics, and traces at up to 140x lower cost than ELK Stack, thanks to Parquet format and efficient data compression. This post shares hands-on experience installing OpenObserve with Docker, configuring Fluent Bit for log collection, querying with SQL, and setting up Alerts to avoid alert fatigue.

Artificial Intelligence tutorial - IT technology blog

BentoML: Packaging and Deploying AI/ML Models as Production-Ready REST APIs on Linux

By admin June 29, 2026

BentoML is an ML serving framework that packages AI/ML models into production-ready REST APIs on Linux, with model versioning, adaptive batching, and automatic Docker export. This article compares Flask/FastAPI, TorchServe, and Triton, then walks through deploying BentoML from training to production using systemd and Docker.

Haystack 2.0: Building Document Processing Pipelines with Document Indexing, Hybrid Retrieval, and Smart Q&A

By admin June 29, 2026

Haystack 2.0 lets you build AI document processing pipelines as directed graphs: each component connected explicitly, making them easy to debug and extend. This guide walks through document indexing, hybrid retrieval combining BM25 and embeddings, and a production-ready Q&A pipeline in Python.

Centos

Deploying Kubernetes with kubeadm on CentOS Stream 9: Building a Production-Ready Cluster with Containerd and Calico CNI

By admin June 29, 2026

A guide to deploying a production-ready Kubernetes cluster on CentOS Stream 9 with kubeadm, Containerd runtime, and Calico CNI. Covers real-world tips: proper firewall configuration, etcd backup, node draining during maintenance, and avoiding common cluster setup mistakes.

Ubuntu

Customizing GNOME Desktop on Ubuntu: GNOME Tweaks vs Extensions — Which Is Better for Developers?

By admin June 29, 2026

The default GNOME Desktop on Ubuntu leaves a lot to be desired for developers. This article compares three customization approaches — GNOME Tweaks, Shell Extensions, and dconf — breaks down when to use each, walks through installing 5 essential extensions, and shows how to back up your config with dconf for easy reuse.

Linux

Speed Up Linux: Optimize I/O by Moving ‘Hot’ Data to RAM with tmpfs

By admin June 29, 2026

No matter how fast your disk is, RAM is hundreds of times faster. This guide walks you through using tmpfs to move temporary data into RAM, cut I/O Wait, and instantly speed up your Linux server.

VMware

Handling APD and PDL Errors in VMware vSphere: Understanding and Resolving All Paths Down and Permanent Device Loss

By admin June 28, 2026

APD and PDL are two types of serious storage failures in VMware vSphere that present with similar symptoms but require completely different remediation approaches. This article walks through how to distinguish, diagnose, and resolve each condition using CLI and PowerCLI — based on real-world experience managing an 8-host ESXi cluster.

Fedora

Setting Up Samba Server on Fedora: Secure File Sharing with Windows Using SELinux and firewalld

By admin June 28, 2026

A comparison of Samba, NFS, and SFTP to help you choose the right file sharing option for a Linux-Windows environment. Focuses on installing Samba on Fedora and correctly handling SELinux contexts, booleans, and firewalld to avoid silent Permission denied errors.

Docker

Buildah: Build OCI Container Images Without Docker Daemon — The Rootless Solution for CI/CD

By admin June 28, 2026

Buildah lets you build OCI container images without a Docker daemon, running completely rootless as a regular user. This guide walks through installation, building with a Containerfile or scripted build, and securely integrating Buildah into GitLab CI and GitHub Actions pipelines.

MySQL

Rescuing MySQL Data: A Hands-On Guide to Handling InnoDB Corruption

By admin June 28, 2026

MySQL crashed due to InnoDB corruption? Don't panic. Follow this 5-step process using innodb_force_recovery to safely and efficiently recover your data.