⌁
Networking Fundamentals
OSI, TCP/IP, Ethernet, IPv4, IPv6, subnetting, ARP, ICMP, DNS and DHCP.
Network engineering knowledge base
Understand the network.
Gateway Wiki is a technical knowledge base for networking, routing, switching, protocols and infrastructure security — built to make complex network concepts easier to understand.
ROUTING / BGPSECURITY / IPSTCP / IP
One gateway.
Many domains.
A structured place to connect the fundamentals with the protocols and technologies used in real production networks.
◈
Routing
Static routing, OSPF, BGP, route selection, redistribution, policy and troubleshooting.
▦
Switching
VLANs, trunks, STP, LACP, MLAG, VXLAN and data-center switching concepts.
⌘
Network Security
Firewalls, segmentation, VPN, TLS, IDS/IPS, access control and security architecture.
◎
Infrastructure
Linux networking, virtualization, load balancing, proxies, observability and automation.
↗
Operations
Design patterns, diagnostics, packet analysis, performance, reliability and practical runbooks.
Explore by topic.
Start from a protocol, a technology, or a problem. The structure is designed to grow into a full technical wiki.
TCP/IPIPv4IPv6Subnetting
DNSDHCPBGPOSPF
MPLSVXLANVLANSTP
VPNFirewallIDS / IPSTLS
Linux NetworkingPacket Analysis