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Web Proxy Caching > Pinning content in the cache
Pinning content in the cache
Help | Content Gateway | v8.5.x
The cache pinning option configures Content Gateway to keep certain HTTP objects (and FTP objects requested from HTTP clients) in the cache for a specified time. Use this option to ensure that the most popular objects are in the cache when needed and that the proxy does not delete important objects from the cache.
 
* 
Note 
The proxy observes Cache-Control headers and pins an object in the cache only if it is cacheable.
To use cache pinning:
1.
In the Content Gateway manager, navigate to the Configure > Protocols > HTTP > Cacheability tab.
2.
Click Edit File at the end of the page to display the configuration file editor for the cache.config file.
3.
In the fields provided, supply the following information:
a.
From the Rule Type drop-down box, select pin-in-cache.
b.
From the Primary Destination Type drop-down box, select url_regex.
c.
In the Primary Destination Value field, specify the URL you want to pin in the cache.
d.
In the Time Period field, specify the amount of time that the proxy pins the object in the cache.
In addition, you can add secondary specifiers (such as Prefix and Suffix) to the rule. All the fields are described under HTTP.
4.
Click Add to add the rule to the list, and then click Apply.
5.
Click Close.
6.
On the Configure > Subsystems > Cache > General tab, enable Allow Pinning.
7.
Click Apply.

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Web Proxy Caching > Pinning content in the cache
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