CompTIA Network+ N10-009 Command Line Commands

ping

Checks connectivity between two devices

traceroute

Displays the path between your device and its destination, showing source and destination IP addresses for each hop

nslookup

Used to query the DNS for mapping domain names to IP addresses or other DNS records

tcpdump

Displays TCP/IP and other packets on a network and captures network traffic for real-time display

dig

Used for queries against DNS name servers

netstat

Displays info for IP based connections on a client (current sessions, source and destination IPs, port numbers)

ip

Display and configure IP address information on newer linux

ipconfig

Used in windows to display TCP/IP network configuration values and refresh DHCP and DNS settings for windows client servers

ifconfig

Used in Unix, Linux and mac OS to display and configure IP addresses information (older)

arp

Displays and modifies entries in the arp cache (stores IP addresses and their associated MAC address)

nmap

Used to discover hosts and services on a computer network (uses: port scanning, IP scanning, software fingerprint services, creating network maps, documenting networks, identifying rogue devices)