IT infrastructure calculators

Networking tidbits

Command-line and settings tricks for finding and fixing network problems.

All tidbits | 2 tips, newest first.

Networking |

Site moved? Your PC didn't get the memo.

When a site or server got a new IP address and one PC still goes to the old one, open Command Prompt and run ipconfig /flushdns.

It flushes and resets the Windows DNS client resolver cache.

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Networking |

Ping that doesn't quit after four.

ping -t keeps pinging until you stop it.

Run ping -t followed by the host to keep pinging until you stop it, which is handy while you reseat a cable or reboot a switch. Press Ctrl + Break to see the stats so far without stopping.

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