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Manage Network Retrieval and Path Validation

Updated: March 28, 2011

Applies To: Windows 7, Windows Server 2008 R2

To be effective, certificate-related data such as trusted root certificates, cross- certificates, and certificate revocation lists (CRLs) must be updated in a timely manner. Network retrieval and path validation settings allow administrators to:

  • Automatically update certificates in the Microsoft Root Certificate Program.

  • Configure retrieval timeout values for CRLs and path validation (larger default values may be useful if network conditions are not optimal).

  • Enable issuer certificate retrieval during path validation.

  • Define how frequently cross-certificates are downloaded.

This topic includes procedures for the following tasks:

Managing CRL retrieval

Obtaining timely certificate revocation data is an important element in secure certificate use. However, problems can arise if validation checking and retrieval of certificate revocation data and cross-certificates time out because more data is being transferred than originally anticipated.

Network retrieval options in public key Group Policy allow administrators to manage timeout values for network retrieval during path validation, including the retrieval of CRLs, OCSP responses, issuing CA certificates, and cross-CA certificates.

Increasing the retrieval timeout option for large CRLs for a local computer

Administrators is the minimum group membership required to complete this procedure.

To increase the retrieval timeout option for large CRLs for a local computer

  1. Click Start, type gpedit.msc in the Search programs and files box, and then press ENTER.

  2. In the console tree under Local Computer Policy\Computer Configuration\Windows Settings\Security Settings, click Public Key Policies.

  3. Double-click Certificate Path Validation Settings, and then click the Network Retrieval tab.

  4. Select the Define these policy settings check box.

  5. Under Default retrieval timeout settings, enter a timeout value in the Default URL retrieval timeout (in seconds) box, and then click OK to apply the new settings.

Increasing the retrieval timeout option for large CRLs for a domain

Domain Admins is the minimum group membership required to complete this procedure.

To increase the retrieval timeout option for large CRLs for a domain

  1. Click Start, point to Administrative Tools, and click Server Manager.

  2. Under Features Summary, click Add Features. Select the Group Policy Management check box, click Next, and then click Install.

  3. After the Installation Results page shows that the installation of the Group Policy Management Console (GPMC) was successful, click Close.

  4. Click Start, point to Administrative Tools, and then click Group Policy Management.

  5. In the console tree, double-click Group Policy Objects in the forest and domain containing the Default Domain Policy Group Policy object (GPO) that you want to edit.

  6. Right-click the Default Domain Policy GPO, and then click Edit.

  7. In the console tree under Computer Configuration\Windows Settings\Security Settings, click Public Key Policies.

  8. Double-click Certificate Path Validation Settings, and then click the Network Retrieval tab.

  9. Select the Define these policy settings check box.

  10. Under Default retrieval timeout settings, enter a timeout value in the Default URL retrieval timeout (in seconds) box, and then click OK to apply the new settings.

Additional references

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