Basic Hardware and Commands
Common Network Hardware:
Router – Connects networks together
Switch – Used to connect multiple devices on the same network together
Wireless Access point – WAP – Device that allows wireless endpoints access to a network
Endpoint – A device connected to the network (i.e. Tablet Computer, Smart Phone, Computer, Laptop. Typically a client machine
Host – A device connected to a network that typically provides a service (i.e. a web server)
Firewall – a device that protects a network from intrusions
Network Commands
ipconfig (windows) ifconfig (Unix, Linux, Max) – Retrieves the network settings for the endpoint.
IP Address – A numerical label assigned to each device connected to an Internet Protocol network.
IP – Internet Protocol
ping – test to see if host is “alive”
tracert (Windows) or traceroute – Traces path to destination host
nslookup – Provides a means to query a name server to obtain an IP Address to Domain name mapping
DNS – Domain Name System – Used to map host names to IP Address.