You can select to purge the content of the purge list or all content cached on the server.
Click Devices > Access Gateways.
Select the name of the server, then click Actions.
Select one of the following actions:
Purge List Now: Click this action to cause all objects in the current purge list to be purged from the cache.
Purge All Cache: Click this action to purge the server cache. All cached content, including items cached by the pin list, is purged.
Click OK.
When you make certain configuration changes such as updating or changing certificates, changing the IP addresses of web servers, or modifying the rewriter configuration, you are prompted to purge the cache. The cached objects must be updated for users to see the effects of such configuration changes. If your Access Gateways are in a cluster, you need to manage the purge process so your site remains accessible to your users. You must apply the configuration changes to one member of a cluster. When its status returns to healthy and current, issue the command to purge its cache. Then apply the changes to the next cluster member.
IMPORTANT:Do not issue a purge cache command when Access Gateway has a pending configuration change. Wait until the configuration change completes.