Technical data

Remote (R) Commands
16.3 Security Considerations
16.3.2 Case-Sensitivity Flag
The proxy database is case sensitive for remote user names. The case you use for
communications entries affects the way users access your host, so use case in a
consistent fashion. In the proxy database, if the user name is in:
• Uppercase, the user must use the /NOLOWERCASE qualifier.
• Lowercase, RSH and RLOGIN default to /LOWERCASE.
If the flag CASE_INSENSITIVE is set, the server matches an incoming user
name with an all-lowercase or an all-uppercase remote user name in the proxy
database.
The case-sensitivity flag for RLOGIN, RSH, and RCP defaults to CASE_
INSENSITIVE. With this setting, the server accepts both all-uppercase and
all-lowercase user names.
Ensure that RSH is enabled, because no RCP service exists. Instead, RCP uses
the RSH server process. (RCP uses RSH or REXEC to do its work. RSH must be
configured properly for RCP to work.)
16.4 Creating a Welcome Message
To modify the welcome message displayed by the RLOGIN server, define the
TCPIP$RLOGIN_MESSAGE logical name and specify the text. For example, the
following command defines a welcome message for RLOGIN clients when they log
in to the server:
$ DEFINE /SYSTEM TCPIP$RLOGIN_MESSAGE "OpenVMS RLOGIN Server Version 5.1"
16.5 Remote Magnetic Tape and Remote CD-ROM (RMT/RCD)
The Remote Magnetic Tape/Remote CD-ROM (RMT/RCD) server provides remote
system access to local OpenVMS magnetic tape and CD-ROM drives. The tape or
CD-ROM drives appear to the RMT client users as if they were mounted locally.
The RMT server fully implements the UNIX commands rdump and rrestore and
the OpenVMS commands MOUNT, BACKUP, COPY, and EXCHANGE.
This section assumes that you are familiar with device mounting and server
access conditions relevant to the R command services.
16.5.1 Preparing Drives for Remote Mounts
Perform the following tasks to make sure the remote client can access the tape or
CD-ROM drive:
1. Enable the RSH, REXEC, and RMT services.
2. Load a magnetic tape or CD-ROM into the device.
With a tape device, the client mounts and allocates the tape; you do not need
to perform this task.
With a CD-ROM device, you need to make the device accessible by entering a
MOUNT /SYSTEM command.
3. Make sure the remote shell command (RSH) works from the UNIX root
account.
• Create the OpenVMS account named ROOT. This account must have
PHYIO and VOLPRO privileges.
16–4 Remote (R) Commands