7 docs tagged with "networking"

VNets and subnets in Azure, NSG rules, service endpoints vs private endpoints, App Service VNet integration, and how these combine to secure resources like Azure SQL.

How DNS actually resolves a name to an address — recursive vs authoritative resolution, record types, TTLs, Azure DNS and private zones, split-brain DNS, email authentication records, and propagation.

The difference between a load balancer and a reverse proxy, load balancing algorithms, health probes, SSL offload, Azure Application Gateway vs. Front Door, and WAF basics.

A systematic, layer-by-layer methodology for diagnosing network issues, the core toolkit (ping, traceroute, dig, curl, openssl, netstat/lsof, nc), and walkthroughs of common real-world scenarios.

How HTTPS actually secures a connection — PKI and certificate authorities, the TLS handshake, certificate validation, automated issuance with Let's Encrypt, and diagnosing certificate errors.

How network communication actually works — the OSI and TCP/IP models, IP addressing, subnetting and CIDR, ports, TCP vs UDP, NAT, routing, and how these map onto Azure networking.

What a VPN actually does, remote-access vs site-to-site VPNs, the major protocols, Azure VPN Gateway, and when a Traxs workflow actually needs one versus when it doesn't.