Can I transfer files through a telnet connection using zmodem or other methods?
It depends on the version of telnet you are using. Some support zmodem, kermit, etc., and some do not. If you do have a version of telnet that supports these transfer methods, it still depends on whether you are using a SLIP or PPP or ethernet account where you run the software or you are using a shell account and using the shell account’s software. SLIP, PPP, and networked accounts should have no problem, but shell accounts are not always configured to support binary transfers. Transferring binary files through a shell account requires the remote site to be operating in 8-bit mode, and many shell sites do not. In special circumstances, if you have enough knowledge of the configuration and operating system of the remote site, for example unix, you may be able to reset the mode.