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2 open source components, Utility setup command, Open source cfengine commands – HP Linux Server Management Software User Manual

Page 13: Open source pdsh commands

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Table 1-3 Command Fanout Commands (continued)

When to Use it

What it Does

Command

To check uptime, users, and load averages.

Reports uptime(1) information for
multiple systems. In a Serviceguard
cluster, issues command clusterwide by
default.

cuptime

To broadcast a message to all logged-in
users across a group of systems.

Displays a wall(1) broadcast message
on multiple hosts. In a Serviceguard
cluster, issues command clusterwide by
default.

cwall

Table 1-4 Utility Setup Command

When to Use it

What it Does

Command

To greatly simplify ssh key distribution.
pdsh

and the command fanout

(cexec-related) commands all rely on a
proper ssh key distribution. The
csync_wizard

requires ssh access to

managed clients. For example, in a
Serviceguard cluster, this allows ssh access
from any member to any other member, so
pdsh

and cexec can be used from any

cluster member.

For the current user, performs a secure
shell (ssh) public key distribution to
multiple systems.

csshsetup

1.2 Open Source Components

The open source components and their commands are described in the following table. These
open source components used by DSAU are based on the high level cfengine language. For
additional information on cfengine, see the cfengine manpage; for the individual commands,
see their respective manpages and open source documentation at /opt/dsau/doc. For supported
open source options, refer to Appendix B,

HP-Supported Open Source Options.

Table 1-5 Open Source cfengine Commands

What it Does

Command

System configuration agent that performs the configuration actions defined in a
configuration policy file.

cfagent

A scheduling and report service. This is an optional component.

cfexecd

Security key generation tool. cfkey is run once on every host to create a
public/private key pair.

cfkey

Tool to activate a remote cfagent.

cfrun

A file server and remote activation service.

cfservd

Table 1-6 Open Source pdsh Commands

What it Does

Command

Formats output from pdsh commands; consolidates identical output from multiple
hosts.

dshbak

Tool to make file and directory copies in parallel to a set of remote systems.

pdcp

Tool to execute shell commands in parallel across a set of systems.

pdsh

1.2 Open Source Components

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