You can deploy the HP Smart Update Manager and firmware
components online or offline.
·
When performing an online deployment, you
must boot the server from the operating system. The HP Smart Update Manager
supports online deployments of all ROM flash components for both Windows® and
Linux, including system, hard-drive (SAS only), array-controller, Lights-Out Management
ROM flash components, NIC firmware, and HP Onboard Administrator for HP c-Class
BladeSystem.
|
|
NOTE: The Onboard
Administrator and NIC firmware are only supported in online deployments.
|
·
When performing an offline deployment, you can boot the server
from the Firmware Maintenance CD or a USB drive key that contains the Firmware
Maintenance CD contents. The HP Smart Update Manager supports offline
deployments of all ROM flash components including system, hard-drive,
array-controller, and Lights-Out Management ROM flash components. When
performing an offline deployment, you can also access a removable device that
contains supplemental updates.
|
|
NOTE: You can add firmware
components to the USB drive key in the /compaq/swpackages directory.
|
To deploy components in an online manner:
1.
Insert the Firmware Maintenance CD or USB drive key. If you use
the Firmware Maintenance CD, the Firmware Maintenance CD interface opens
automatically. If you use a USB drive key, you must start the interface
manually. Open a command-line interface and type one of the following commands
to access the Firmware Maintenance CD:
o In
Windows®:
\_autorun\autorun_win
o In
Linux:
/autorun
2.
Read the End-User License Agreement. If you agree to the terms of
the license agreement, click Agree to continue. The
Firmware Maintenance CD interface is displayed.
3.
Click the Firmware Update tab.
4.
Click Install Firmware. The HP Smart
Update Manager is initiated.
5.
Select and install the desired components. See "Using the GUI: local host installations " or "Using the
GUI: multiple-host installations " for more information.
To deploy components in an offline manner:
1.
Boot the server from the Firmware Maintenance CD or a USB drive
key.
2.
At the prompt, select a language and keyboard.
3.
Click Continue.
4.
Read the End-User License Agreement. If you agree to the terms of
the license agreement, click Agree to continue. The
Firmware Maintenance CD interface is displayed.
5.
Click the Firmware Update tab.
6.
Click Install Firmware. The HP Smart
Update Manager is initiated.
7.
Select and install the desired components. See "Using the GUI: local host installations " or "Using the
GUI: multiple-host installations " for more information.
HP Smart Update Manager deploys smart firmware components
on a local host or one or more remote hosts. The remote hosts must be online
and running the same operating system as the system running HP Smart Update
Manager such as when the remote hosts are running Linux, the HP Smart Update
Manager should also be running on a Linux system. HP Smart Update Manager supports
the following operating systems:
·
Microsoft® Windows Server™ 2003 and Microsoft® Windows Server™
2003 x64
·
Red Hat Enterprise Linux 3, 4, and 5, and SUSE Linux Enterprise
Server 9 and 10 x86 and AMD64/EM64T
The following table describes typical HP Smart Update
Manager deployment scenarios.
|
Scenario
|
Description
|
|
Graphical deployment on a local host
|
Use this scenario when you:
·
Are not familiar with command line tools
·
Are deploying components on a local, single-host
·
Do not require scripting
|
|
Scripted deployment on a local host
|
Use this scenario when you:
·
Are familiar with command line tools
·
Are deploying components on a local, single-host
·
Must perform a customized, scripted deployment
|
|
Graphical deployment to a remote host
|
Use this scenario when you:
·
Are not familiar with command line tools
·
Are deploying components on one or more remote hosts
·
Do not require scripting
|
|
Scripted deployment to a remote host
|
Use this scenario when you:
·
Are familiar with command line tools
·
Are deploying components on one or more hosts
·
Must perform a customized, scripted deployment to one or more
host systems
|
The easiest way to deploy components to a local,
single-host is to use the HP Smart Update Manager graphical interface.
To deploy components to a local host using the GUI:
1.
Ensure all minimum requirements are fulfilled as described in
"Minimum requirements."
2.
Ensure that the components to be deployed are accessible to the
local host and are available in the same directory as the HP Smart Update
Manager.
See "Using the GUI: local host
installations " for information about performing the
deployment using the graphical interface.
To deploy components to a local host using the command
line interface:
1.
Ensure all minimum requirements are fulfilled as described in
"Minimum requirements."
2.
Ensure that the components to be deployed are accessible to the
local host and are available in the same directory as the HP Smart Update
Manager.
3.
Create a script to customize the deployment. See "Scripted deployment " for more information.
4.
Execute the script.
The following figure
illustrates the multiple-host deployment process.
To deploy components to multiple remote hosts using the
GUI:
1.
Ensure all minimum requirements are fulfilled as described in
"Minimum requirements."
2.
Ensure that the components to be deployed are accessible to the
administrative system and are available in the same directory as the HP Smart
Update Manager.
For information about performing the deployment using the
graphical interface, see "Using the GUI: multiple-host
installations."
To deploy components to multiple remote hosts using the
command line interface:
1.
Ensure all minimum requirements are fulfilled as described in
"Minimum requirements."
2.
Ensure that the components to be deployed are accessible to the
administrative system and are available in the same directory as the HP Smart
Update Manager.
3.
Create a script to customize the deployment. See "Scripted deployment " for more information.
4.
Execute the script.
The HP Smart Update Manager provides an easy-to-use
graphical interface that enables you to deploy and maintain firmware
components. To access the HP Smart Update Manager, see "Deployment Options."
The Inventory Progress
screen is displayed while the HP Smart Update Manager builds an inventory of
available updates.
The Select Installation
Host(s) screen appears when the inventory process is complete.
The Select Installation Host(s) screen enables you to
choose a host for component installation. By default, the first time you run
the HP Smart Update Manager on a particular system, the only host available is
local host. However, you can also choose to select remote hosts as your target.
For more information about using the graphical interface for multiple remote
deployments, see "Using the GUI: multiple-host
installations."
The following columns are included in the Select
Installation Host(s) screen:
·
Host Name—Displays the host IP address or DNS name.
·
Type—Categorizes the system as a host or group.
·
Last Used—Enables you to sort the list by the most recently-used
hosts.
·
Description—Displays the user-defined description given to a
host.
When the Remote Host or
Group option in the Select Installation Host(s) screen is selected, you can
sort the host list by selecting to view only the hosts, the groups, or both.
The Select Installation Host(s) screen also includes the
following buttons:
·
Manage Hosts—Adds, edits, and deletes hosts.
·
Manage Groups—Adds, edits, and deletes groups.
·
Edit—Edits the selected host.
·
Next—Proceeds to the system discovery where the local or remote
system checks for already installed items.
·
Exit—Exits the HP Smart Update Manager.
To continue to system discovery, click Next.
For multiple remote deployments, enter the credentials for the host. The
Select Items to be Installed screen appears.
The Select Items to be
Installed screen displays information about which components are available for
installation on your system and enables you to select or clear components to
install.
For more information about the Select Items to be
Installed screen and its sections, see "Selecting components
to install."
After first time installations, the HP Smart Update
Manager can deploy smart firmware components on a local host or one or more
remote hosts. The easiest way to deploy components on a local host is to use
the HP Smart Update Manager graphical interface.
To continue with the
deployment process using a local host, select a host from the Select
Installation Host(s) screen, and click Next.
The Discovery Progress screen appears while the HP Smart
Update Manager checks the local system to see which items are already
installed.
When the discovery process
is complete, the Select Items to be Installed screen appears.
The Select Items to be Installed screen includes the
following sections:
·
The Host field—Displays the system on which the selected items
will be installed.
·
The Status field—Indicates if the installation is ready to
proceed.
·
The Reboot section—Enables you to specify reboot settings and
determine when reboots occur.
·
The component selection pane—Enables you to specify which
components to install.
When multiple hardware devices, such as hard drives or
array controllers, exist in a single server, HP Smart Update Manager only lists
each device once. If the devices have different firmware versions, the versions
are listed from latest to earliest in a range. Whenever there are multiple
instances of the firmware for installation, the instances are listed from
earliest to latest. All hardware device firmware is flashed, if needed, to the
selected version.
The component selection pane might be divided into
sections, depending on your system. These sections can include the following
headings:
·
Installable Updates—Components in this section can be installed
on your system.
·
Installation Not Needed—Components in this section do not need to
be updated.
·
No Device Driver Installed—The firmware devices supported by the
components in this section are detected on the system but require a device
driver. Install the device driver.
·
Deselected by User—You have deselected the components in this section
and they will not be installed.
|
|
NOTE: If the
Installation Not Needed section appears, you must click Installation
Options to be able to select the components.
|
The Select Items to be Installed screen also includes the
following GUI buttons:
·
Select All—Selects all available components for installation
·
Deselect All—Deselects all components currently selected for
installation
·
Default—Restores the selections in the product installation pane
to the default view, which is based on the current configuration of the local
system
·
Exit—Exits the HP Smart Update Manager
·
Install—Installs all selected components
·
Add Supplemental—Enables you to deploy additional components from
a removable device. The additional components must be located on the root of
the device. This button is available only for offline deployments.
System status field
The Status field of the Select Items to be Installed
screen displays information about whether the installation is ready to proceed.
|
Icon
|
Text
|
Description
|
|
|
Ready
|
All selected components are ready to be
installed.
|
|
|
Already up-to-date
|
No component installation is required.
|
|
|
None Selected
|
No components are selected for installation.
|
|
|
x Critical Action
|
X components are
not ready for installation due to failed dependencies, where x is the number of components. The installation cannot
proceed until the dependencies are met or the component is deselected for
installation.
|
Reboot section
The reboot section of the
Select Items to be Installed screen enables you to specify preferred reboot
behavior.
To instruct the system to reboot after updates are
installed:
1.
Click Reboot System After Installation.
2.
Click Always or If
Needed.
If Always is selected, then the
system will always be rebooted unless there is a component installation
failure. If If Needed is selected, then the system will
be rebooted if needed by at least one component unless there is a component
installation failure.
To change the delay before
reboot or the reboot message, click Reboot Options. The
Set Reboot Options screen appears.
|
|
NOTE: In Linux, the Reboot
Delay time is automatically converted from seconds to minutes. Any value
under a full minute, 59 seconds or less, will be rounded to the next minute
for Linux.
|
Make any changes, and click OK.
Component selection pane
The component selection pane of the Select Items to be
Installed screen displays (by type) all components available for installation
based on your server and hardware options. The HP Smart Update Manager automatically
checks each component for dependencies, if the component is already installed
on the system, or if it requires a reboot after installation. Items available
for installation are selected by default. You can deselect any components you
do not want to install.
The component selection pane is divided into the following
columns:
·
Product—Specifies the name of the component, version number, and
new component version number. To view the component version history, click the
new version number.
·
Status—Displays the status of the component.
|
Icon
|
Text
|
Description
|
|
|
Ready for installation
|
The component is ready for installation.
|
|
|
Not selected for installation
|
The component has not been selected for
installation.
|
|
|
Already up-to-date
|
The component is already up-to-date. To
downgrade or rewrite a component, click Installation
Options.
|
|
|
No device driver installed
|
The firmware devices supported by the
components in this section are detected on the system but require a device
driver. Install the device driver.
|
|
|
Deselected by user
|
The component has not been selected for
installation.
|
|
|
Failed dependencies
|
The component has a dependency that has not
been met. To determine the nature of the failed dependency, click View Failed Dependencies.
|
·
Optional Actions—Reserved for future use.
·
Additional—Contains the installation options for the components.
The following figure shows
the Failed Dependencies screen:
Installation options
You can specify firmware
upgrade behavior for installable components by selecting one or more of the
following options from the Additional Options field. Depending on the component
type, one of the following screens may appear:
·
Select Allow Downgrades to force the
current firmware to be downgraded to an older version.
·
Select Allow Rewrites to enable the HP
Smart Update Manager to overwrite the current firmware version with the same
version.
·
Select Allow Shared Devices to upgrade
firmware in a shared storage environment.
|
|
CAUTION: Updating the
firmware while a shared device is in use can lead to data loss. Before
enabling the Allow Shared Devices option, be sure any
other servers sharing the selected devices are offline.
|
The following table illustrates how changing the options for
firmware upgrade behavior can change the firmware upgrade results. In this
example, the array controller is assumed to be an HP Smart Array 6402
controller.
If the existing array controller has firmware version 3.00
installed, then updating the firmware produces results as described in the
following table:
|
|
Default
|
Allow downgrades
|
Allow rewrites
|
|
Firmware upgrade v3.05
|
3.05
|
3.05
|
3.05
|
|
Firmware upgrade v3.10
|
3.10
|
3.10
|
3.10
|
If the existing array controller has firmware version 3.10
installed, then updating the firmware produces results as described in the
following table:
|
|
Default
|
Allow downgrades
|
Allow rewrites
|
|
Firmware upgrade v3.05
|
No change
|
3.05
|
3.10
|
|
Firmware upgrade v3.10
|
No change
|
No change
|
3.10
|
After you have selected all
the components that you want to install, click Install
to proceed with the installation. The Installation Progress screen appears.
When the installation is
complete, the Installation Results screen appears.
The Installation Results screen is divided into the
following columns:
·
Product—Specifies the name of the installed component. To see the
component version history, click the version number.
·
Status—Specifies the installation status of the component.
|
Icon
|
Text
|
Description
|
|
|
Success
|
The component was installed successfully.
|
|
|
Same/older version successfully installed
|
The existing component was successfully
downgraded or reflashed to the same or an older version.
|
|
|
Update returned an error
|
An update error has occurred. See the HP Smart
Update Manager log file for details.
|
|
|
Installation failed
|
The component was not installed. Click View Installation Log to see additional details.
|
·
Additional—Enables you to view the installation log for each
component and reminds you if a reboot is needed.
|
Icon
|
Text
|
Description
|
|
|
Reboot Needed
|
The server must be rebooted for the component
to take effect.
|
To see additional
details, click View Installation Log.
The Installation Results screen also includes the
following buttons:
·
Reboot Now—Reboots the server (This button is available for local
installations only).
·
Exit—Exits the HP Smart Update Manager.
The log files can be found in the following locations:
There are installation logs called hpsum_log.txt and
hpsum_detail_log.txt which contain information about the installation activity
for each host being updated. hpsum_log.txt contains a brief summary of the
installation activity. hpsum_detail_log.txt contains all of the installation
details, including errors, for each component installed.
·
For Windows®, these files are located in subdirectories named
according to the IP address of each host in the \CPQSYSTEM\log subdirectory on
the boot partition of the local host. The directory containing the local host
information is called localhost instead of using the IP address.
·
For Linux, these files are located in subdirectories named
according to the IP address of each host in the /var/hp/log subdirectory of the
local host. The directory containing the local host information is called
localhost instead of using the IP address.
The HP Smart Update Manager
provides an easy-to-use graphical interface that enables you to deploy and
maintain firmware components. To access the HP Smart Update Manager, see "Deployment options."
The Inventory Progress screen is displayed while the HP Smart
Update Manager builds an inventory of available updates.
When the inventory process is complete, the Select
Installation Host(s) screen appears.
The Select Installation
Host(s) screen enables you to choose multiple groups and/or hosts for component
installation.
To add hosts, see "Managing Hosts
." To add groups, see
"Managing Groups."
To continue with the deployment process:
1.
Select one or more hosts and/or groups.
2.
Click Next to continue to system
discovery.
3.
Enter the credentials for the host ("Entering credentials for hosts").
4.
Click OK to proceed as described in "Selecting components to install on multiple hosts."
5.
When the installation is complete, the Installations
results for multiple hosts screen ("Viewing the installation results for multiple hosts"
) appears.
Managing hosts
To add, edit, or delete
hosts, click the Manage Hosts button. The Manage Hosts
screen appears.
To add a host:
1.
Click Add Host. The New Host dialog box
appears.
2.
Select the method to add a host from the following:
a.
Enter the DNS name of the host to be added.
b.
Enter the IP address of the host to be added.
c.
Enter the IP address range of the hosts to be added. The starting
and ending IP addresses must both be on the same subnet.
3.
Enter an optional user-defined description given to the host to
be added.
4.
Click OK.
The new host is added to the list on the Select
Installation Host(s) screen.
To edit an existing host:
1.
Click the Edit Host button on the Manage
Hosts screen. The Edit Host dialog box appears.
2.
Make the desired edits.
3.
Click OK.
To delete a host:
1.
Click the Delete Host button on the
Manage Hosts screen.
2.
Click Yes when the confirmation screen
appears.
Managing groups
To add, edit, or delete
groups, click the Manage Groups button. The Manage
Groups screen appears.
To add a group:
1.
Click Add Group. The Edit Group dialog
box appears.
2.
Enter a group name.
3.
Enter an optional user-defined description given to the group to
be added.
4.
Select the hosts to be added to the group from the available
hosts pane. You can add new hosts from this screen by clicking the New Host button. For more information on adding hosts, see
"Managing hosts."
5.
Click the Enter >> button to move
the selected hosts to the new group.
6.
Click OK.
The new group is added to the list on the Select
Installation Host(s) screen.
To edit an existing group:
1.
Select the desired group and click the Edit
Group button on the Manage Groups screen. The Edit Group dialog box
appears.
2.
Edit the group name as needed.
3.
Edit the optional user-defined description given to the host as
needed.
4.
Use the Enter >> and << Remove buttons to add or remove hosts as needed.
5.
Click OK.
To delete a group, select the group on the Manage Groups
screen, then click the Delete Group button.
Click Yes when
the confirmation screen appears.
Entering credentials for hosts
When a single remote host
is selected, the Enter Credentials for Host screen appears.
To enter the credentials for the host, choose one of the
following:
·
Select Enter Username and Password, and
then enter the username and password.
·
Select Use Current Credentials to use the
currently logged-in user's credentials.
If an active update process is detected on the remote
host, you can select Skip host or Restart
update. Skip host causes the host to be ignored for the rest of the
update process, while Restart update causes any existing or in-progress
installation to be terminated. For both options, you will need to re-enter your
credentials for the host.
Click OK to continue.
When a group or multiple
hosts are selected, the Enter Credentials for Group screen appears.
The screen separates the remaining hosts still requiring
credentials from the completed hosts.
Each pane is divided into the following columns:
·
Name—Specifies the name of the host.
·
Status—Specifies the credentials status of the host.
|
Icon
|
Text
|
Description
|
|
|
Entered
|
The credentials for the host have been
entered.
|
|
|
Needs Credentials
|
The credentials for the host have not been
entered.
|
|
|
Credentials Failed
|
The credentials entered for the host have
failed.
|
|
|
Unable to access host
|
The host cannot be accessed using the
credentials entered.
|
|
|
Host Skipped Due to Existing HPSUM Session
|
The host is skipped due to an existing HP
Smart Update Manager session.
|
·
Description—Displays the user-defined description given to the
host.
To enter the credentials for the host:
1.
Select the host from the list of hosts requiring credentials in
the left pane. If all the credentials are the same, you can click Select All to select all the hosts on the list.
2.
Click the Enter >> button to enter
the required credentials and to move the selected host to the completed hosts
pane.
3.
Click Next to continue to system
discovery.
The Select Items to be
Installed screen displays the server hosts and their status information.
The Select Items to be Installed screen includes the
following GUI buttons:
·
View Host—Enables you to view additional information about the
selected host.
·
Install—Installs all selected components.
·
Exit—Exits the HP Smart Update Manager.
The server host pane of the Select Items to be Installed
screen displays the summary information for the server hosts available for
installation, and features a drilldown of individual hosts.
The server host pane is divided into the following
columns:
·
Host—Specifies the name of the system, number of updates
available, and the estimated time for the installation.
·
Status—Specifies the status of the host.
|
Icon
|
Text
|
Description
|
|
|
Ready
|
The host is ready for installation.
|
|
|
Nothing to Install
|
The host is already up-to-date.
|
|
|
Host Skipped Due to Existing HPSUM Session
|
The host is skipped due to an existing HP
Smart Update Manager session.
|
|
|
Action Required
|
The host is not ready for installation.
Additional action is required.
|
|
|
Discovery Failed
|
The host is not ready for installation. The
detection of installed hardware, software, and firmware has failed.
|
|
|
NOTE: The default reboot
behavior after updates are installed might also appear in the Status column.
|
To zoom in to single host
selections, click View Host on the Select Items to be
Installed screen. The Selections for Single Host screen appears.
To set single-host selections, proceed as described in Selecting Components to Install (on
page 13).
After setting the single-host selections for all hosts to
be updated, click Install on the Select Items to be
Installed screen to proceed with the installation.
When the installation is
complete, the Installation Results screen appears.
The Installation Results screen is divided into the
following columns:
·
Host—Specifies the IP address or DNS name of the host.
·
Status—Specifies the overall installation status of the
component.
|
Icon
|
Text
|
Description
|
|
|
Success
|
The host was updated successfully.
|
|
|
Nothing to install
|
The host is already up-to-date.
|
|
|
Installation cancelled by user
|
The installation was cancelled and cannot
continue the process.
|
|
|
Installation failed
|
One or more of the components have failed.
|
The Installation Results screen also includes the
following buttons:
·
View Host—Enables you to view the
installation results on the selected host.
·
Exit—Exits the HP Smart Update Manager.
In order to view
single-host installation results, double-click on the host or select the host,
and click View Host.
Proceed as described in Viewing the
installation results.
Use redundant ROM or ROMPaq to recover from a system ROM
upgrade failure.
Redundant ROM recovery
When you flash the system ROM, ROMPaq writes over the
backup ROM and saves the current ROM as a backup, enabling you to switch easily
to the alternate ROM version if the new ROM becomes corrupted for any reason.
This feature protects the existing ROM version, even if you experience a power
failure while flashing the ROM.
When the server boots, the system identifies whether the
current ROM is corrupt. If a corrupt ROM is detected, the system boots from the
backup ROM and alerts you through POST that the ROM is corrupt.
To access the redundant ROM through RBSU:
1.
Access RBSU by pressing the F9 key during
powerup when the prompt is displayed in the upper right corner of the screen.
2.
Select Advanced Options.
3.
Select Redundant ROM Selection.
4.
Select the ROM version.
5.
Press the Enter key.
6.
Press the Esc key to exit the current
menu or press the F10 key to exit RBSU. The server
restarts automatically.
If RBSU is inaccessible, you can switch ROM images by
changing the switch settings on the system configuration switch. See your
server documentation for more information.
If both ROM images are corrupt, use ROMPaq recovery.
ROMPaq recovery
If both the current and backup versions of the ROM are
corrupt, perform ROMPaq disaster recovery procedures:
1.
On another server, insert the Firmware Maintenance CD. The
Firmware Maintenance CD interface opens automatically.
2.
Read the End-User License Agreement. If you agree to the terms of
the license agreement, click Agree to continue. The
Firmware Maintenance CD interface is displayed.
3.
Click the Firmware Update tab.
4.
Click Browse Firmware CD.
5.
Browse to and save the ROMPaq image to the hard drive.
6.
Execute the ROMPaq image to create the ROMPaq diskette.
7.
Switch to the server with the corrupted ROM.
8.
Power down the server.
9.
Insert the ROMPaq diskette.
10.
Power up the server.
a.
The server generates one long beep and two short beeps to
indicate that it is in disaster recovery mode. If the diskette is not in place,
the system continues to beep until a valid ROMPaq diskette is inserted.
b.
The ROMPaq diskette flashes both system ROM images. If
successful, a sequence of ascending audible beeps is generated. If
unsuccessful, a sequence of descending audible beeps is generated and you need
to repeat the disaster recovery process.
11.
Power down the server.
12.
Remove the ROMPaq diskette.
13.
Power up the server.
To manually set the server for ROMPaq disaster recovery:
1.
Power down the server.
2.
Remove the access panel.
3.
Set the system maintenance switch positions for disaster
recovery. Switch positions are server-specific; see the server documentation
for information about the correct settings for your server.
4.
Insert a ROMPaq diskette with the latest system ROM from the
Firmware Maintenance CD or the HP website (http://www.hp.com/support).
5.
Install the access panel.
6.
Power up the server.
7.
Allow the system to boot completely.
8.
Repeat steps 1 and 2.
9.
Reset the system maintenance switch positions to their original
settings.
10.
Repeat steps 5 and 6.
To recover from an option ROM upgrade failure, use the
recovery method that is appropriate to the specific option.
Array controller ROMs
Array controllers support Recovery ROM, which is a
redundancy feature that ensures continuous system availability by providing a
backup ROM. During the flash process, a new version of the firmware can be
flashed to the ROM while the controller maintains the last known version of the
firmware. If the firmware becomes corrupt, the controller reverts back to the
redundant version of the firmware and continues operating.
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NOTE: Storage option ROMs
cannot be downgraded with ROMPaq because ROMPaqs have been retired as a
delivery method for storage options.
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Lights-Out management ROMs
To perform disaster recovery for RILOE II, iLO, and iLO 2,
see the documentation for your particular Lights-Out management product on the Remote management website
(http://www.hp.com/servers/lights-out).
When the Unable to Access
Host message appears, the target firewall is enabled. By default, the
target firewall is enabled in Linux.
To recover remote Linux functionality, the target and host
firewall must be disabled or reconfigured.
