Disable Symantec Blue Coat ProxySG caching

Step-by-step guide

To prevent the transmission of stale content or other issues caused by object caching, you can use either cache(no) or bypass_cache(yes) in content policy language (CPL). For a comparison of cache(no) and bypass_cache(yes), see KB1772.

This sample provides instructions for disabling object caching for specific URLs by adding a policy rule in the Web Access Layer.

  1. In the Management Console, select Configuration > Policy > Visual Policy Manger, and then click Launch.
  2. From the Visual Policy Manager (VPM) dialog box, select Policy > Add Web Access Layer. The Add New Layer dialog box appears.
  3. In the Add New Layer dialog box, name the layer to reflect the purpose of the layer, such as "Web Access Layer (bypass cache)," then click OK.
  4. Right click the Destination field and select Set from the drop-down list.
  5. In the Set Destination Object dialog box, click New > Request URL, and enter the URL you want to exclude from the cache. Click Add, then OK.
  6. Right click on Action and select Set > Bypass Cache. Then, click OK.
  7. Click Install policy to apply the new policy.

To use CPL code for the same policy rules, add the following CPL code in the local policy file or in a VPM CPL Policy Layer:

<Proxy> url.domain=<url> bypass_cache(yes)

In the example above, <url> is the URL you want to exclude from caching.

Source:

https://support.symantec.com/us/en/article.tech241976.html

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