ACL Question

[ts8586]

Greetings. I have a quick newbie-type ACL question for you fine folks.

I have hosts going off "Interface A" of my router. I have an FTP server (and other servers) off "Interface B". I need to block all of the hosts (except for one or two, still up in the air) from having access to this FTP server.
My main question is where do I place this rule at? My guess is to place it on Interface A (fa0), but I'm not sure.

Please chime in with opinions. Thanks!

 

[brianinms]

You are correct you place the acl closest to the host you wish to block.

 

[ts8586]

Thank you, sir.