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By default, DB2 uses rsh when executing commands on remote DB2 nodes, for
example, when starting a remote DB2 database partition. To use the DB2 default,
the rsh-server package must be installed (see table below). For a comparison
between rsh and ssh, see the “Security issues when installing DB2” section of the
Administration Guide: Implementation.
If you choose to use the rsh remote shell utility, inetd (or xinetd) must be
installed and running as well. If you choose to use the ssh remote shell utility,
you need to set the DB2RSHCMD registry variable immediately after the DB2
installation is complete. If this registry variable is not set, rsh is used. For more
information on the DB2RSHCMD registry variable, see the Performance Guide
book.
v The nfs-utils Network File System support package is required for partitioned
database systems.
All required packages should be installed and configured before continuing with
the DB2 setup. For general Linux information, see your Linux distribution
documentation.
Package requirements for SUSE Linux
Package name Description
pdksh Korn Shell. This package is required for partitioned database
environments.
openssh This package contains a set of server programs which allow
users to run commands on (and from) remote computers via a
secure shell. This package is not required if you use the default
configuration of DB2 with rsh.
rsh-server This package contains a set of server programs which allow
users to run commands on remote computers, login in to other
computers, and copy files between computers (rsh, rexec, rlogin,
and rcp). This package is not required if you configure DB2 to
use ssh.
nfs-utils Network File System support package. It allows access to local
files from remote computers.
Package requirements for Red Hat
Directory Package name Description
/System Environment/Shell pdksh Korn Shell. This package is required for
partitioned database environments.
/Applications/Internet openssh This package contains a set of client
programs which allow users to run
commands on a remote computer via a
secure shell. This package is not
required if you use the default
configuration of DB2 with rsh.
/System Environment/
Daemons
openssh-server This package contains a set of server
programs which allow users to run
commands from a remote computer via
a secure shell. This package is not
required if you use the default
configuration of DB2 with rsh.
12 Getting started with DB2 installation and administration