JSI Tip 7465. DNS queries to some domains may not be resolved successfully after you upgrade to Windows Server 2003?

Jerold Schulman

November 19, 2003

1 Min Read
ITPro Today logo in a gray background | ITPro Today

Windows Server 2003 implements the Extension Mechanisms for DNS (EDNS0), which permits the use of larger UDP packets.

Your firewall may not permit UDP packets larger than 512 bytes.

To resolve the problem, see tip 6967 Windows Server 2003 DNS is sending large UDP packets that your firewall can't handle?



Sign up for the ITPro Today newsletter
Stay on top of the IT universe with commentary, news analysis, how-to's, and tips delivered to your inbox daily.

You May Also Like