Terminal Courses
3 Free Interactive Courses
Browse every Terminal course on Coddy. Each course runs in your browser with AI-assisted hints, real exercises, and a certificate on completion.
LAN Labs
NewBuild, address and troubleshoot small networks in a terminal lab: hosts, switches and routers, cables, IPv4 addresses and masks, ARP, gateways, routing tables, and the classic faults that break real LANs.
Certificate on completion
- 35
- 35
IP Addressing and Subnetting
NewMaster IP addresses from the bits up: binary, IPv4 anatomy, subnet masks, CIDR, subnetting drills, private ranges, network planning with VLSM, and a first look at IPv6. Practice everything in the terminal.
Certificate on completion
- 46
- 46
The OSI Model
NewHow networks really talk, one layer at a time: the seven OSI layers, MACs and ARP, IP and routing, TCP, UDP and ports, encapsulation, and the full journey of a packet, with hands-on terminal walkthroughs.
Certificate on completion
- 32
- 32
Frequently asked questions
How many Terminal courses are on Coddy?
Are the Terminal courses free?
Do I get a Terminal certificate?
