Linux

Learn how to set up PostgreSQL logical replication with publication and subscription on Ubuntu Server in this clear, step-by-step guide.

Learn How to Manage Multiple Environments with Terraform Workspaces and an S3 Remote Backend to keep dev, staging, and prod isolated safely.

Learn How to Configure Split-horizon DNS with Bind9 Views on Ubuntu Server to serve different DNS responses to internal and external clients.

Learn how to harden Linux server security by securing filesystem mount options for /tmp, /dev/shm, and /proc on Ubuntu Server step by step.

Learn How to Configure Varnish Cache as a Caching Reverse Proxy with Vcl Rules and Cache Purging on Ubuntu Server to boost site speed.

Learn how to set up RabbitMQ with dead letter exchanges and message TTL for reliable task processing on Ubuntu Server in this step-by-step guide.

Learn how to configure sudo access and the sudoers file for granular privilege management on Ubuntu Server in this step-by-step guide.

Learn how to set up a centralized Rsyslog server to collect and organize logs from multiple Linux clients on Ubuntu in this step-by-step guide.

Learn how to configure Prometheus Alertmanager with alert rules and email notifications on Ubuntu Server in this step-by-step guide.

Learn how to set up file integrity monitoring on Linux using AIDE with automated checks and alerting on Ubuntu to secure your server.