Time To Live 

The limit on the length of time an FTP object can remain in the cache. The default is 4320 minutes (three days).  

Max Object Size 

The limit on the size of an FTP object for caching. The Netra j proxy cache server proxies for, but does not cache, FTP objects that exceed this limit. The default is 4 MB. 

Do not Cache URLs Containing 

The Netra j proxy cache server does not cache FTP URLs containing strings you add to this list. There are no defaults.