ping-node-ssh
Tests if a node that is enabled for communication over SSH is usable.
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 utility can run on the
host that the node represents. To validate a node, the subcommand runs the version 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 subcommand.
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 subcommand.
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This subcommand is supported in remote mode only.
Options
- asadmin-options
-
Options for the
asadminutility. For information about these options, see theasadminhelp 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/payara:
Using locally retrieved version string from version class.
Version = Payara Server 6.20.0 #badassfish (build 00)
Command version executed successfully.
Command ping-node-ssh executed successfully.