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Zorluk: KolayWindows Client Networking Configuration

A help desk technician is troubleshooting a Windows 11 client workstation that is failing to resolve internal domain names after a server IP migration. The DNS server records have already been updated, but the client workstation continues attempting to connect to the old IP address. Which command-line switch should the technician execute with the ipconfig utility to clear the local DNS resolver cache?

  1. A
    ipconfig /renew
  2. ipconfig /flushdnsCevap
  3. C
    ipconfig /registerdns
  4. D
    ipconfig /release

Cevap

The command ipconfig /flushdns clears and resets the local DNS resolver cache on a Windows client machine.
Running ipconfig /flushdns immediately purges stored DNS name resolution records on a Windows client. This is the standard operational procedure when host-to-IP mappings change and the client machine needs to query the DNS server for current records.

Adım Adım Çözüm

1
Identify the underlying issue causing stale IP lookup results
The client workstation relies on local cached DNS records rather than querying the DNS server.
Windows maintains a local DNS resolver cache to optimize name resolution speed, which can retain outdated host-to-IP mappings after server changes.
2
Select the correct command-line switch to purge cached records
Executing ipconfig /flushdns empties the local resolver cache.
Flushing the cache forces the OS to query the configured DNS server directly for updated hostname mappings.

Anahtar Kavram

Windows Command-Line Network Utilities (ipconfig)
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Konular

Windows Client Networking Configuration

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