HP 5992-3838 manual Check that SSH is configured correctly on the managed node

Page 47

Once this action is taken, check that Application Discovery is receiving messages from the host. (See #8 in this section.)

5.Check that SSH is configured correctly on the managed node .

In this case, you may need to repair the HP Systems Insight Manager agent on the managed system. Click the following menu selections: Configure, then Configure or Repair Agents. Make sure to check the box for 'configure SSH access' before running the repair agent.

To verify that the repair action has resolved any SSH configuration problem, you can issue a remote ls command toward the managed system by doing the following:

a.Select Tools →Command Line Tools →UNIX/Linux →ls...

b.In the text field, type /tmp

If the contents in /tmp are visible, then SSH is working correctly.

If the configuration is still not working, you may see an error message:

Ssh Operation failed for node:managed_node.

The connection could not be established.

Reason:Failed to read remote identification

In conjunction with this, you may also notice that running mxagentconfig and selecting Configure→Configure or Repair Agents fail on the target managed node.

To reconfigure SSH on the managed node, do the following steps:

1.Log on the managed node as user root.

2.# cd /.ssh /* <root_user_home_directory>/.ssh */

3.

# rm * /* Erase all possible

corrupted contents */

4.

# ssh-keygen -b

2048

-t

rsa /* Generate root ssh key */

5.

# ps -elffgrep

sshd

/*

Find

the sshd PID */

6.# kill -1 <pid> /* Re-start sshd */

7.# mxagentconfig -a -n managed_node

8.# amgr_remote_config -a -n managed_node -mx

Once this action is taken, check that Application Discovery is receiving messages from the host. (See #8 in this section.)

6.Check that Application Discovery agent is authorized to exchange data with the CMS and that exchange is complete.

Click through the following HP Systems Insight Manager menus: Configure→Configure VSE Agents →Check AD Agent States. Any status other than Connected indicates that a certificate exchange may be necessary.

See “Introduction” (page 63) for completing the certificate exchange. The Application Discovery agent starts running (and begins sending data to the Application Discovery server) on completion of the certificate exchange.

Once this action is taken, check that Application Discovery is receiving messages from the host. (See #8 in this section.)

7.Check that the WBEM connection is working correctly on the managed node.

To check the status of the WBEM connection, do the following in Application Discovery user interface:

a.Click the AD Agents tab.

b.Look for the WBEM Stat column in the 'Hosts/Agents' table.

If the status message for WBEM is 'WBEM down', do the following:

Check that HP Systems Insight Manager CMS has an authorized logon with the managed system.

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Contents HP Application Discovery Version 4.0 Users Guide Copyright 2008 Hewlett-Packard Development Company, L.P Table of Contents Troubleshooting and Error Messages Configuring the Wbem Provider Password Page List of Figures Page List of Tables Page Typographic Conventions About This DocumentIntended Audience New and Changed Information in This EditionHP Encourages Your Comments Related InformationPublishing History Introduction Features of Application DiscoveryPage Application Discovery Components Components and ConceptsDiscovery Ratio Refining Application DiscoveryHow Discovery Works Understand Your Current Discovery StateWarm-up Ratio Refine Discovery by Checking Agent StateRefine Discovery by Creating Application Templates Understanding Application TemplatesUnderstanding Server Resource Consumption How Memory Usage is CalculatedMemory usage by the Application Discovery server Start the HP Application Discovery Agent ProceduresStarting Application Discovery Modifying Agent BehaviorChecking Agent State Reconfigure a Running Agent from the Command LineUsing HP SIM to Stop the AD Agent Stopping the Agent from the Command LineExplanation of Agent States Working With Data ViewsSet Color Theme Adjusting the User InterfaceSet Screen Data Refresh Interval Set General VisibilityFilter Data in View Tables Change the Data ViewSet Number of Table Rows Sort Data in View TablesSet Visibility for Hosts on Application Discovery Screens Navigate Between ViewsSet Visibility for Packages on Application Discovery Screens Set Visibility for Matched ApplicationsModifying the Maximum Size of an Event List Setting Data Polling IntervalSetting Alert Location Setting Event AttributesIntroduction to Event Settings in Application Discovery Setting Event SeverityChange AD Application Template Values Managing Application TemplatesFind an Application Template On HP-UX Key to Application Template Values Create a New TemplateHP Global Workload Manager gWLM Attribute Fields and Their Descriptions Summary Fields and Their DescriptionsOne one pid per running application Rule Rule Fields and Their DescriptionsCreate an Aggregation Rule Create an Application Template RuleAggregation Rule Examples How to Remove Types from the Aggregation Rule Understanding the Tables Showing Unmatched Processes Using the Table Data to Fill in An Application TemplateFilling in the Summary Fields Using Table Data Check Unmatched Processes to Find Application CandidatesFilling in the Template Attribute Fields Filling in the Rule Fields Using Table DataBacking Up Application Discovery Files On HP-UX Introduction Troubleshooting and Error MessagesErrors in Installation Applications Not Visible in Application Discovery Screens Data Missing in Application Discovery ScreensIntroduction Host Not Visible in Application Discovery Screens Check that SSH is configured correctly on the managed node Packages Not Visible in Application Discovery Screens Application Discovery may not be correctly configured Application Errors in VSE Workload ScreensCheck that the host is known to Application Discovery UI Unable to Connect to Server Messages Errors in Application Discovery User Interface OperationCannot Enter Application Discovery User Interface Java UI exception Message Displays Application Discovery Resources Getting Assistance in Using Application DiscoveryPage Page Options Amgrd= Logtrace InstallationAuthors Agentconfig Check agent state Ulogininfo Amgrremoteconfig 1MAmgrremoteconfig was developed by Hewlett-Packard Company Completing Certificate Exchange Using HP SIM to Complete Certificate ExchangeCompleting Certificate Exchange from the Command Line Uoption supported on HP-UX only Configuring the Wbem Provider Password Page Event Types Key to Event AttributesEvent Viewing Locations Event Severity TypesAdditional Event Types Specific to HP Application Discovery Agent GlossaryManaged SSL Wbem Index SymbolsClear filter, 25 clutter Expand table Packages tab, 26 Templates tab, 26 templates, 16 about Index

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