#routing (2)

Cheat sheets (2)

ip — iproute2 Networking

Modern replacement for ifconfig, route, and arp. Inspect and configure interfaces, addresses, routes, neighbour tables, and network namespaces with the iproute2 ip command.

ip iproute2 networking sysadmin cli routing web-researched

Networking Stack — OSI/TCP-IP, Sockets, TCP/UDP, MTU, NAT, DNS

How packets actually move: the OSI and TCP/IP layer models, the BSD socket API, TCP vs UDP, the three-way handshake, MTU/MSS, NAT and port translation, basic IP routing, and the full DNS resolution flow.

networking osi tcp-ip sockets tcp udp mtu nat routing dns sysadmin

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