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v4rcp(1) [redhat man page]

RCP(1)							      General Commands Manual							    RCP(1)

NAME

       v4rcp - back end for Kerberos V4 rcp

SYNOPSIS

       v4rcp not invoked by users

DESCRIPTION

       This program is not for user execution. The usage message indicates this.

       Kerberos  Version  4  rsh  did  not support encryption. In order to perform encrypted file transfer, the version 4 rcp program did a second
       authentication, directly to the rcp process at the other end. This meant that rcp needed to be setuid to root in order  to  read  the  krb-
       srvtab file on the remote end.

       Rather  than add this complexity into the main Kerberos 5 rcp the Kerberos 5 kshd instead detects the use of Kerberos 4 authentication, and
       checks the command for the program name rcp and then substitutes the full pathname of v4rcp instead.  Since v4rcp is  installed	setuid	to
       root, it can perform the the authentication and get the session key needed to encrypt the file transfer.

       Kerberos 5 rcp instead uses the encryption support built in to Kerberos 5 rsh and kshd directly.

SEE ALSO

       rsh(1), rcp(1), kshd(8)

																	    RCP(1)

Check Out this Related Man Page

RCP(1)							    BSD General Commands Manual 						    RCP(1)

NAME

     rcp -- copy file to and from remote machines

SYNOPSIS

     rcp [-45FKpxz] [-P port] file1 file2
     rcp [-45FKprxz] [-P port] file... directory

DESCRIPTION

     rcp copies files between machines. Each file argument is either a remote file name of the form ``rname@rhost:path'' or a local file (contain-
     ing no colon or with a slash before the first colon).

     Supported options:

     -4, -5, -K, -F, -x, -z
	     These options are passed on to rsh(1).

     -P port
	     This will pass the option -p port to rsh(1).

     -p      Preserve file permissions.

     -r      Copy source directories recursively.

DIAGNOSTICS

     rcp is implemented as a protocol on top of rsh(1), and thus requires a working rsh. If you intend to use Kerberos authentication, rsh needs
     to be Kerberos aware, else you may see more or less strange errors, such as "login incorrect", or "lost connection".

HISTORY

     The rcp utility first appeared in 4.2BSD. This version is derived from 4.3BSD-Reno.

HEIMDAL 
							  April 16, 2003							   HEIMDAL
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