This article describes an issue in which a Domain Name System (DNS) server freezes and doesn't respond to DNS requests in Windows Server 2012 R2. A hotfix is available to fix this issue. Before you install this hotfix, see the Prerequisites section.

Learn how to update drivers in Windows using Device Manager to update or reinstall a driver.

Describes an issue in which DNS records are not removed correctly for a Windows client that is configured to use a static IP address. Additionally, this article describes the issues that are caused when you run "ipconfig /registerdns" on this client.

You may want to configure your Xbox to use specific DNS server(s) rather than those automatically configured by your router/gateway or ISP. The DNS feature provides a way for you to manually assign DNS server address information, or switch back to obtaining DNS server settings automatically.

Internet Explorer 4.x and later versions modify how DNS host entries are cached by decreasing the default time-out value to 30 minutes. More Information. WARNING: If you use Registry Editor incorrectly, you may cause serious problems that may require you to reinstall your operating system.

You may want to configure your Xbox to use specific DNS server(s) rather than those automatically configured by your router/gateway or ISP. The DNS feature provides a way for you to manually assign DNS server address information, or switch back to obtaining DNS server settings automatically.

This advisory describes a Critical Remote Code Execution (RCE) vulnerability that affects Windows servers that are configured to run the DNS Server role. We strongly recommend that server administrators apply the security update at their earliest convenience.

An attacker can use this public DNS system to use any internet-facing DNS resolver to try NXNSAttack amplification. After an amplification vector is discovered, it can be used as part of a denial of service (DDoS) attack against any DNS server that hosts a public DNS domain (the victim domain).

Blocking connectivity to SMB might prevent various applications or services from functioning. For a list of Windows and Windows Server applications and services that may stop functioning in this situation, see Service overview and network port requirements for Windows.

Fixes an issue in which name resolution fails. This issue occurs when the DNSSEC signature is refreshed on a Windows Server 2012 R2 or Windows Server 2012-based DNS server.