Network Operations

Information Query

traceroute (Trace packets route)

• Default and simple

  traceroute/tracert <IP | FQDN>
  

• Specify max number of hops

  traceroute -m <int> <IP | FQDN>
  

• Example

  traceroute -m 42069 google.com
  

dig (DNS lookup)

dig <IP | FQDN>

nslookup (Nameserver lookup)

Most effective when used to look into a certain web address, e.g. google.com, rather than an IP address.

nslookup <FQDN | IP>

ip/ipconfig/ifconfig

• List interfaces

  ipconfig getiflist
  

• Get IP address of the Mac machine on LAN

  ipconfig getifaddr en0
  

• Summary of the interface

  ipconfig getsummary en0