Using Zmodem from a modem connection (dialout from unix) From the responses I got, it is apparently impossible to use rz/sz from kermit. The only way out would be to modify kermit, so that it doesn't lock the modem port. The people who reported success running rz from kermit possibly had such modified versions. This is the procedure to try: - start sz on the remote machine - escape to the C-Kermit prompt - ! rz </dev/ttya >/dev/ttya (substitute the name of your modem port) If you get "/dev/ttya: Device busy", you need to modify kermit, or use one of the other solutions: 1) Use tip instead of kermit. To download, use this procedure: - start sz on the remote machine - ~C rz The ~C escape sequence allows you to run a local command, with its input and output connected to the modem port. This feature appears to be Sun-specific, but it works fine otherwise. 2) Use pcomm. I haven't seen this yet, but apparently this is an integrated communications package, which includes zmodem support and vt100 emulation. Pcomm 1.2 is in volume 20 of the comp.sources.unix archive. You can find it in wuarchive.wustl.edu:/usenet/comp.sources.unix/volume20/pcomm1.2. 3) Use tipx. This is an extended version of tip, with built-in rz/sz. It is in volume 13 of the comp.sources.misc archive. You can find it in wuarchive.wustl.edu:/usenet/comp.sources.misc/volume13/tipx. To build it, you also need the source for tip, which is part of 4.3BSD. You can find tip in wuarchive.wustl.edu:/systems/unix/4.3bsd-reno/usr.bin/tip. I haven't tried pcomm and tipx myself, but reports indicate that pcomm can be hard to build. Tipx seems to be more popular. If you have a Sun, you should just drop kermit and go back to tip, it does the job perfectly with the ~C escape.