Time To Live  

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

Max Object Size  

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

Do not Cache URLs Containing  

The Netra j proxy cache server does not cache Gopher URLs containing strings you add to this list. The default is ? (question mark).