Self-Hosted Email That Actually Delivers: Postfix + Dovecot + Rspamd in 2026
Run your own mail server with Postfix, Dovecot, and Rspamd. Full control, lower costs, custom spam filtering, and complete 2026 setup guide.
Server Administration
Guides, tutorials, and best practices for managing Linux servers, configuration, security, and deployment in production environments.
LVM Snapshots for Live Database Backups: Hot Backups Without Dropping Writes
LVM snapshots enable live database backups without downtime. Freeze writes briefly, create a snapshot, then back up while your database runs normally.
RDMA on Linux Without a Datacenter Budget: RoCE, iWARP, and NVMe-oF for Self-Hosters
Learn RDMA on Linux for self-hosters. RoCE and iWARP setup guide to boost storage and network performance for Ceph, NVMe-oF, and ML workloads.
Stop Feeding Google: Self-Host Your Analytics with Plausible, Umami, or Matomo
Stop feeding Google your analytics data. Compare self-hosted alternatives like Plausible, Umami, and Matomo to reclaim privacy and control.
Microsoft Entra ID for Self-Hosted Apps: OIDC and SAML Federation That Actually Works
Configure Entra ID federation for self-hosted apps using OIDC and SAML. Complete setup guide with examples for Grafana, Nextcloud, Gitea and more.
SSE at Scale: Backpressure, Connection Limits, and Real-World Recipes
Learn to deploy SSE at scale: backpressure, connection limits, and proven patterns. Handle file descriptors, proxies, slow clients, and streaming challenges.
Garage vs SeaweedFS vs MinIO: Which S3-Compatible Storage Belongs in Your Homelab?
Choose the right S3-compatible storage for your homelab. Detailed comparison of MinIO, Garage, and SeaweedFS: compatibility, resources, performance.
Self-Host ntfy.sh: Push Notifications for Your Scripts, Cron Jobs, and Homelab
Self-host ntfy for push notifications. Deploy your own notification service for scripts, cron jobs, homelab. No accounts, no costs, complete privacy.
Open vSwitch on Linux: The Complete Guide to Flow Tables and KVM Integration
Master Open vSwitch on Linux. Learn flow tables, KVM integration, VXLAN tunneling, SDN controllers, and QoS. Replace kernel bridges with OVS.
FIDO2 in Enterprise: How to Actually Replace Passwords (Deployment Guide)
Enterprise guide to FIDO2 deployment and passwordless authentication. Replace passwords with hardware security keys and eliminate phishing completely.