Perform some tests (examples)
Charon server name "charon", vms system name "pluto":

charon# ssh system@pluto "show system /noproc"
OpenVMS V7.3-2 on node PLUTO 27-SEP-2013 11:50:14.37 Uptime 0 19:20:07

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How to install 'rsh' on RHEL 8

To setup 'rsh' on RHEL8, use the following commands:

# yum install https://dl.fedoraproject.org/pub/epel/epel-release-latest-8.noarch.rpm

# ARCH=$( /bin/arch )

# subscription-manager repos --enable "codeready-builder-for-rhel-8-${ARCH}-rpms"

# dnf -y install rsh

How to setup ‘rsh’ trusts between Linux and Tru64

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