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Event ID 7503 — DNS Server Service Status

  • Article

Applies To: Windows Server 2008

The DNS Server service responds to requests from DNS client computers for name resolution services. Domain Name System (DNS) is a protocol that enables a computer to obtain the numeric IP address of another computer by submitting the target computer's name to a DNS server. Problems with the DNS Server service can cause network performance to degrade or even prevent network computers from being able to locate each other.

Event Details

Product: Windows Operating System
ID: 7503
Source: Microsoft-Windows-DNS-Server-Service
Version: 6.0
Symbolic Name: DNS_EVENT_CANNOT_ALLOCATE_RECORD
Message: The DNS server could not allocate memory for resource record %1. Close any applications not in use or reboot the computer to free memory.

Resolve

Free memory or other system resources

To perform this procedure, you must have membership in Administrators, or you must have been delegated the appropriate authority.

Close any unnecessary applications or services, and then try the operation again.

If the operation fails again, restart the DNS Server service.

To restart the DNS Server service:

  1. On the DNS server, start Server Manager. To start Server Manager, click Start, click Administrative Tools, and then click Server Manager.
  2. In the console tree, double-click Roles, double-click DNS Server, and then double-click DNS.
  3. Right-click the DNS server, click All Tasks, and then click Restart.

If the problem continues, restart the computer and then use Server Manager to verify that the DNS Server service has started.

To restart the computer:

  • Click Start, click the arrow next to the Lock button, and then click Restart.

To verify that the DNS Server service has started:

  1. On the DNS server, start Server Manager. To start Server Manager, click Start, click Administrative Tools, and then click Server Manager.
  2. In the console tree, expand Roles, and then click DNS Server.

The System Services list shows the state of the DNS Server service.

If the problem persists, one or more applications running on the server might be causing memory problems.

Verify

To verify that the DNS Server service is running properly, ensure that the DNS Server event log contains Event ID 2 and that the event log does not contain the following Domain Name System (DNS) error events:

  • 111
  • 403-407
  • 1001
  • 3151-3153
  • 6533
  • 7502-7504

DNS Server Service Status

DNS Infrastructure