I’ve made an article about this for IcAROS http://oanemous.free.fr/?p=755, so, now, one is needed for Amiga 1200 classic.
The best way to surf the network, download programs, … today with an amiga 1200 classic is its original case, is buying an easynet pcmcia card : http://amiga.amedia-computer.com/index.php/catalogue/infos/1/1/LC_EASYNETRJ45
For me network is better than sharing usb keys, or connecting the internal CF card to a slot on your PC (that you still can do ofcourse).
with normal smb conf configuration (look at this article http://oanemous.free.fr/?p=1098) : guest not allowed, a user and a password, I get this behavior :
twice ask for password, then an error : socket access from hades denied! access denied!
it seems that linux password encryption is coming into play there. I tried to use “encrypt password = no” in smb.conf, but i got the same error, AND the smb connection did not work anymore on both AROS and linux side.