Episode 60: File and Print Services — SMB and SQL Protocols
Many core services on local networks revolve around file sharing and database access, and this episode explains the protocols that make it possible. We begin by exploring Server Message Block (SMB), the protocol used by Windows for file and printer sharing, along with how it operates over TCP ports and integrates with authentication mechanisms. You’ll learn about SMB versions, their security improvements, and how to troubleshoot when file shares aren’t accessible.
We also introduce SQL-related protocols used for database access, including TDS for Microsoft SQL Server and common ports used by MySQL and PostgreSQL. Understanding how file and database services interact with DNS, authentication, and firewalls is key to supporting business-critical applications. Whether you're setting up shares or troubleshooting client access, this episode equips you with practical insights into these everyday services.
