I need help. How do I block ports on a PIX-515 and/or PIX-506?

I would like to try and block the TCP ports: 135, 139, 445. I don't think
we're using them, so I'd like to just close them.
Also...what about blocking RCP over UDP and RCP over TCP? How do I put in
blocks for those as well?
Specifically, I am looking for the command syntax to enter in at the command
Gina Bautista

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