Systems Administration - Cloud Billionaire

3-Router WDS Setup: How to Cascade TP-Link Wireless Bridges

You have a multi-story home or a spread-out layout, thick concrete walls, and persistent WiFi dead zones in the back room or upstairs office. Running solid structural Cat6 Ethernet cables is either structurally impossible, rejected by your landlord, or cost-prohibitive. Off-the-shelf range extenders seem like an easy fix, but they often introduce unstable connections, separate

SMTP Server: What It Is & How to Configure It

1 Comment / Cybersecurity, DevOps, Networking, Systems Administration / Yash Chaudhari

Struggling to route application emails or manage transactional email delivery? This complete technical guide demystifies the Simple Mail Transfer Protocol (SMTP). Learn how SMTP servers coordinate the sending and relaying of digital messages across global networks, understand port standards like 587 and 465, and discover how to configure reliable email infrastructure using providers like Google Workspace, Amazon SES, or self-hosted Postfix servers. Includes real-world programmatic examples in Python, Node.js, and PHP, alongside vital authentication setups (SPF, DKIM, DMARC) and troubleshooting commands to ensure your emails hit user inboxes every single time.

SMTP Server: What It Is & How to Configure It Read More »