Essential ipconfig Commands Every IT Professional Should Know

Whether you’re an experienced network engineer or new to IT, the ipconfig command remains a core troubleshooting tool on Windows systems.

Even with advanced options like PowerShell and netsh, ipconfig is often the fastest way to identify connectivity problems and review key network settings.

Below is a quick overview of the most commonly used switches:

• ipconfig
  Displays basic network information such as IP address, subnet mask, and default gateway.

• ipconfig /all
  Shows detailed configuration data, including MAC addresses, DHCP status, and DNS settings.

• ipconfig /release and /renew
  Forces a DHCP lease release and renewal, useful when troubleshooting intermittent or lost connectivity.

• ipconfig /displaydns
  Displays the contents of the local DNS resolver cache.

• ipconfig /flushdns
  Clears the DNS cache to help resolve name resolution issues or outdated DNS records.

Refer to the cheat sheet for a quick reference.