ping-node-ssh

tests if a node that is enabled for communication over SSH is usable

Synopsis

asadmin [asadmin-options] ping-node-ssh [--help]
[--validate={false|true}] node-name

Description

The ping-node-ssh subcommand tests if a node that is enabled for communication over secure shell (SSH) is usable. This subcommand requires secure shell (SSH) to be configured on the machine where the domain administration server (DAS) is running and on the machine where the node resides. You may run this command from any machine that can contact the DAS.

If the node is usable, the subcommand displays a confirmation that the subcommand could connect to the node through SSH. This confirmation includes the name of the host that the node represents.

Optionally, the subcommand can also validate the node to determine if the asadmin(1M) utility can run on the host that the node represents. To validate a node, the subcommand runs the version(1) subcommand. If the node is valid, the subcommand displays the version that the version subcommand returns.

The node that is specified as the operand of this subcommand must be enabled for communication over SSH. If the node is not enabled for communication over SSH, an error occurs. To determine whether a node is enabled for communication over SSH, use the list-nodes(1) subcommand.

Note	To test whether a node that is enabled for communication over the Distributed Component Object Model (DCOM) remote protocol is usable, use the `ping-node-dcom`(1) subcommand.

This subcommand is supported in remote mode only.

Options

asadmin-options

Options for the asadmin utility. For information about these options, see the asadmin(1M) help page.

--help

-?

Displays the help text for the subcommand.

--validate

Specifies whether the subcommand validates the node.
Possible values are as follows:

true: The node is validated.
false: The node is not validated (default).

Operands

node-name: The name of the node to test. The node must be enabled for communication over SSH. Otherwise, an error occurs.

Examples

Example 1 Testing if an SSH-Enabled Node Is Usable

This example tests if the SSH-enabled node sj03-node is usable.

asadmin> ping-node-ssh sj03-node
Successfully made SSH connection to node sj03-node (sj03.example.com)
Command ping-node-ssh executed successfully.

Example 2 Validating an SSH-Enabled Node

This example validates the SSH-enabled node adc-node.

asadmin> ping-node-ssh --validate=true adc-node
Successfully made SSH connection to node adcnode (adc.example.com)
GlassFish version found at /export/glassfish3:
Using locally retrieved version string from version class.
Version = GlassFish Server Open Source Edition 3.1 (build 40)
Command version executed successfully.
Command ping-node-ssh executed successfully.

Exit Status

0: command executed successfully
1: error in executing the command