Networking
What is a protocol?
Explore protocol syntax, semantics, and timing, plus addressing, sequencing, encapsulation, and other communication functions.
3 min readLesson 05
Notes on
Networking.
Addresses, protocols, and what happens between computers.
Networking
5 articles- Networking
DNS and domain resolution
See why human-readable domain names need DNS, and follow a lookup through caches and name servers.
2 min readLesson 04 - Networking
Subnet masks and address classes
Split an IPv4 address into network and host portions with a subnet mask, and revisit historical address classes.
2 min readLesson 03 - Networking
IP addresses and ports
Understand IPv4 and IPv6 notation, then distinguish a device's network address from a service's port.
1 min readLesson 02 - Networking
Networks, OSI, and TCP/IP
Introduce networks and protocols, walk through the seven OSI layers, and map them to TCP/IP.
3 min readLesson 01
From the original blog
Two historical notices, preserved separately from the tutorials.
Welcome to Informatics The original about page