08-26-2012
On some systems, rsh is a "remote" shell; on other systems, rsh is a "restricted" shell. It looks like krb4 rsh is a remote shell and /usr/bin/rsh is a restricted shell on this system. Check the rsh(1) and sh(1) on your system to determine what the pathnames are to the remote shell(s) on your system.
The connection refused diagnostics from the remote shell means that the requested remote system decided that you (your user ID, or anyone on your system) will not be allowed to run applications on that remote system.
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rstart(1X) rstart(1X)
NAME
rstart - a sample implementation of a Remote Start client
SYNOPSIS
rstart [-c context] [-g] [-l username] [-v] hostname command args...
OPTIONS
This option specifies the context in which the command is to be run. A context specifies a general environment the program is to be run
in. The details of this environment are host-specific; the intent is that the client need not know how the environment must be configured.
If omitted, the context defaults to X. This should be suitable for running X programs from the host's "usual" X installation. Interprets
command as a generic command, as discussed in the protocol document. This is intended to allow common applications to be invoked without
knowing what they are called on the remote system. Currently, the only generic commands defined are Terminal, LoadMonitor, ListContexts,
and ListGenericCommands. This option is passed to the underlying rsh; it requests that the command be run as the specified user. This
option requests that rstart be verbose in its operation. Without this option, rstart discards output from the remote's rstart helper, and
directs the rstart helper to detach the program from the rsh connection used to start it. With this option, responses from the helper are
displayed and the resulting program is not detached from the connection.
DESCRIPTION
The rstart command is a simple implementation of a Remote Start client as defined in A Flexible Remote Execution Protocol Based on rsh. It
uses rsh as its underlying remote execution mechanism.
NOTES
This is a trivial implementation. Far more sophisticated implementations are possible and should be developed.
Error handling is nonexistent. Without -v, error reports from the remote are discarded silently. With -v, error reports are displayed.
The $DISPLAY environment variable is passed. If it starts with a colon, the local hostname is prepended. The local domain name should be
appended to unqualified host names, but is not.
The $SESSION_MANAGER environment variable should be passed, but is not.
X11 authority information is passed for the current display.
ICE authority information should be passed, but is not. It is not completely clear how rstart should select what ICE authority information
to pass.
Even without -v, the sample rstart helper will leave a shell waiting for the program to complete. This causes no real harm and consumes
relatively few resources, but if it is undesirable it can be avoided by explicitly specifying the "exec" command to the shell, for example,
rstart somehost exec xterm
This is obviously dependent on the command interpreter being used on the remote system; the example given will work for the Bourne and C
shells.
SEE ALSO
rstartd(1X), rsh(1), A Flexible Remote Execution Protocol Based on rsh
AUTHOR
Jordan Brown, Quarterdeck Office Systems
rstart(1X)