Prometheus Alertmanager: Alert Rules, Routing & Slack Notifications (Rocky Linux 10)
Prometheus is excellent at collecting metrics and deciding when something is wrong, but it does not send emails or chat...
November 15, 2026
2026
How to Set Up Nginx with Let’s Encrypt SSL on Rocky Linux 10 (Certbot, Auto-Renewal & Reverse Proxy)
Every public website, API, and admin panel should use HTTPS, and Let’s Encrypt provides trusted certificates for free through an...
November 14, 2026
PostgreSQL Backup with pgBackRest: Full, Incremental & Point-in-Time Recovery
pg_dump is a fine tool for small databases, but it takes a logical snapshot: restores are slow on large data,...
November 13, 2026
firewalld on Rocky Linux 10: Zones, Rich Rules & Real-World Recipes
Rocky Linux 10 ships with firewalld enabled by default. It is the standard way to manage the host firewall across...
November 12, 2026
Docker Image Vulnerability Scanning with Trivy: Safe Install & CI/CD Integration Guide (2026)
Trivy is one of the most popular open-source scanners for container images, file systems, Git repositories, Kubernetes clusters, and infrastructure-as-code....
November 11, 2026
SELinux Troubleshooting on Rocky Linux 10: audit2why, semanage & Common Denials
“Permission denied” while the file permissions look perfect is the classic sign of SELinux. The most common reaction is to...
November 10, 2026
Linear Tape-Open (LTO) Explained: Generations, Capacity, Compatibility & Backup Use Cases
Magnetic tape sounds like a relic, yet it remains one of the most economical ways to store very large amounts...
November 9, 2026
Oracle Linux 10 vs Rocky Linux 10 vs AlmaLinux 10: Which RHEL Clone Fits Your Workload?
Since CentOS Linux ended, the “free enterprise Linux” question has three common answers: Rocky Linux, AlmaLinux, and Oracle Linux. All...
November 8, 2026
How to Migrate VMware ESXi VMs to Proxmox VE: Import Wizard, OVF Import & qm disk import
Broadcom’s licensing changes pushed many teams and homelabs to look for an alternative to VMware ESXi. Proxmox VE, an open-source...
November 7, 2026
n8n Queue Mode: Scale Self-Hosted Workflows with Redis, PostgreSQL & Workers
A default self-hosted n8n instance runs everything in one process: the editor, webhook reception, scheduling, and every workflow execution. That...
November 6, 2026
