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TechnitiumSoftware / DnsServer

Technitium DNS Server
https://technitium.com/dns/
GNU General Public License v3.0
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bug: DnsServer tries to occupy all available UDPs port on Windows #1005

Closed garylavayou closed 1 month ago

garylavayou commented 1 month ago

Brief Description of the Problem

DnsServer tries to occupy all available UDP ports on Windows. As far as I know, the only necessary UDP port required is 53 for the DNS service.

Version Info

DNS Server

Technitium DNS Server
Version 12.2.1

Server up since Aug 19, 2024 8:29 AM (5 minutes ago)

Windows Version

OS Name:     Microsoft Windows 10 Professional
OS Version:  10.0.19045

Related Snapshot

The following snapshots from Windows Resource Monitor show that DnsService.exe tries to occupy all available UDP ports.

image

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ShreyasZare commented 1 month ago

Thanks for the post. This is done for security reasons and the same is done by Microsoft DNS server. Please read issue https://github.com/TechnitiumSoftware/DnsServer/issues/782 for details.