Overview of Zmodem
Zmodem Zmodem is a file transfer protocol that touts speed and reliability. In this terminal emulation application, it provides a mechanism for secure file transfers as long as the remote machine has Zmodem support installed. is a full-duplex file transfer protocol that supports fast data transfer rates and effective error detection. Zmodem is very user friendly, allowing either the sending or receiving party to initiate a file transfer. Zmodem supports multiple file ("batch") transfers, and allows the use of wildcards when specifying filenames. Zmodem also supports resuming most prior Zmodem file transfer attempts.
The Zmodem protocol features can be disabled to prevent undesired automatic uploads to the local machine from an unknown source.
Topics for this section include:
Changing the Default File Transfer Directories
Downloading a File with Zmodem
In its default configuration, SecureCRT initiates Zmodem file transfers by sending an "rz" command to the remote server. If you are trying to connect to a server that expects a different command (e.g., "lrz" in FreeBSD), you can change this command by editing the session's .ini file. In the .ini file, locate the following entry:
S:"Zmodem Receive Command"=rz\r
You can set the receive command to whatever the remote system expects and add command-line arguments if you want.