How Do I Drop Object From Cache?

["Vadim Pushkin" <wiskbroom@xxxxxxxxxxx>]

Hello.

I have tried using:

./squidclient -h localhost -p 3030 -m PURGE 
http://www.cnn.com/URL-to-delete-from-cache

And I get permission denied.  Could someone please tell me what restricts 
this and how I can change it?

How/what is the best way to delete things from cache when they have been 
found to be bad?

Thanks again,

.vp