KLE - Quick Installation Guide KVM Link Extender 1 x PC/KVM port IP-based KVM Link Extender for Remote Server Management
Rev. 1.4 Copyright© All rights reserved. 2007
To check for viewer screen proper centering, just try to hit the
Right_Ctrl – Right_Ctrl –Home to sync your remote and local mouse
cursors. A properly centered viewer screen should have both cursors
align perfectly. (But before that you should turn off the mouse
acceleration. See prevous section for mouse acceleration turn-off.). Also
if a screen is not properly centered it will have a black strip (offset) on
edge of the screen.
3.
If the viewer screen is not centered correctly, try:
either
(a)
to click
the computer icon within the
Select Computer
Box to align it anew; or
(b)
Go to the viewer Quick Menu (by clicking the title bar icon of the
viewer window), and
select
Adjust Screen
to
bring out the
Adjust
Screen
box. First, uncheck
the
Automatic Centering
option. And then adjust
the vertical and horizontal
shift. This way, you can
manually center the screen
output by the increment of
one pixel. After the display is centered again, you can choose to check
the
Automatic Centering
option again, or just leave it unchecked since
you have made the correction. However, remember to click the
Store
button to save this correction into KLE memory, so that it will
implement the correct value when next time you switch to this computer
without even trying its automatic centering!
After the optimization, you can always disable the Automatic
Centering option or even disable the Automatic Optimization option just
to make the viewer more efficient for initial capturing of the display
output from your PC. .It will connect faster!
Add a KVM switch and its switching hotkeys for
Click-
and-Switch KVM port selection
You should add a KVM Switch within the KLE configuration only
when you need to allow multiple servers/computers to be access by KLE.
In this case, you should input the KVM switch and its port switching
hotkey to the KLE database, so that you can use the Select Computer box
for
click-and-switch
operation. However, if you intend to connect only
one single server/computer to the KLE, then there’s no need to add any
KVM switch to the KLE database.
1.
Go to the
KVMs
page of KLE Web Management:
2.
Add in your KVM Switch:
Either
select a KVM switch from the
available list if you happen to use one on the list.
Or
, you can just add in
your own KVM switch on the list as well --- Just
type in the
Model Name
, and select the
Escape
Hotkey
this KVM switch uses and type in the rest of
the port switching hotkey sequences corresponding
to every KVM port. For details, please refer to the
User Guide, Section 4.11.
3.
Validate your setting:
Go to the
Apply Setting
page and hit
Apply Setting
button to restart KLE.
Now you can try to connect to KLE with your
viewer and try to click on the computer icons on the
Select Computer box to see if it can click-and-
switch to the corresponding KVM port.
Configure your Computer Names
1.
Go to the
Computers
page of KLE Web and configure the computer
names as you wish.
2.
However, every time when you rename a computer, please hit the
Submit
button to save the modification to the KLE database, and then go
to rename the next computer …. (
Note that if you don’t click Submit
button, your modification won’t go into KLE database!
)
3.
After you have finished renaming all the connected computers, go to
the
Apply
Setting
page and hit the
Apply setting
button to make the name
modifications effective. For details, please refer to
User Guide, Section
4.7.
4.
Establish a new viewer connection and you’ll see the
Select Computer
box is now with new computer names you have specified.
Add, edit or delete KLE user accounts
KLE allows three types of user accounts with different privileges to the
access of KLE Web management features – SUPERADMIN- access to
all management features / ADMIN – access to partial management
features / USER – access to minimal features. For details, please refer to
User Guide, Section 4.1.
1.
Go to the
User Management
page on KLE Web.
2.
Add, edit or delete the user accounts as well as assign access
privilege
.
There are three default user accounts:
username / password
superuser / superu
Æ
SUPERADMIN privilege
admin / 123456
Æ
ADMIN privilege
user / 123456
Æ
USER privilege
We recommend you to add your own user accounts and delete or at
least modify the passwords of the existing default accounts for security
sake.
You should at least retain one account with SUPERADMIN privilege.
In fact, the KLE won’t allow you to delete the last SUPERADMIN
account so that you won’t lock yourself out by accidentally deleting all
SUPERADMIN accounts.
Install Certificates on both KLE and your client
computer
The certificates are only needed when you want to implement level 3
Security – SSL data encryption plus full PKI authentication - over
viewer connection. If you have no intention to implement level-3 security,
you could as well skip this section.
1.
Obtain a set of certificates from your certification authority (CA):
This set of certificates should have the following file names and format
requirements:
root.crt
Æ
file name is mandatory, in
.crt
format
server.crt
Æ
file name is mandatory, in
.crt
format
serverkey.pem
Æ
file name is mandatory, in
.pem
format
client_name
.p12
Æ
file name could be freely chosen, in .p12 format.
2.
Import certificates to both the KLE and the viewer on your client
computer:
For details please refer to the
User Guide, Section 3.3 and
Section, 4.16.
You could also set up your own CA (Certification Authority) using
freeware such as XCA (downloadable from
http://sourceforge.net/projects/xca
) to generate the set of certificates
you need to implement full PKI authentication on your own with the
ultra-security yet without incurring the costs of buying certificates from
external CA. For details, please refer to the document
How to generate
KLE certificates using XCA
(could be found on the KLE Support CD-
ROM).
Change Viewer Security Level
KLE offers three viewer connection security levels:
* Level 1: No SSL encryption, No SSL authentication
* Level 2: 256-bit encryption, server authentication by client
* Level 3: 256-bit encryption, full authentication (requires the
installation of certificates)
By factory default, the security level is set at level 2 - with SSL
encryption but without full PKI Authentication.
1.
Go to the Security Page on KLE Web
.
2.
Choose your viewer connection Security Level:
If you choose level
1 or level 2, you just select it and
Submit
and
Apply Settings
. However, if
you intend to implement the highest level of security – Level 3 – you
should first upload the certificates to KLE and also import certificates to
the viewer on your client computer before you can enable level 3 (SSL +
full PKI authentication) security setting. For details, please refer to the
User Guide, Section 3.3
.
3.
Validate your settings:
go to the
Apply Setting
page to hit the
Apply
Setting
button to validate the security setting…
Change Password Policy for viewer connection
KLE offers three viewer password control policies: No password – No
password is required for connection, Global password – a global
password is required for all users; User-specific password – each user
has a specific password. Each user account and its password are valid
for use only when KLE is adopting the User-specific password policy.
The password policy does not affect the browser access, which is only
granted using User-specific account and password For details, please
refer to User Guide, Section 4.16.
1.
Go to the
Security
page on KLE Web.
2.
Select your password policy:
select your password policy and click
Submit.
3.
Validate your settings:
go to the
Apply Setting
page and hit the
Apply
Setting
button to validate the new setting.
If you select Global Password policy, you will have to enter a global
password, which is used for all users when they want the viewer access
to the KLE.
By factory default, the user policy is User-specific Password, which
is a more secure policy than either No Password or Global Password.
Power Control, Radius Accounting, Remote
Authentication and other Settings
Settings such as
Power Control
,
Radius accounting
and
remote
authentication
are disabled by factory default. If you are not going to use
these features, there is no need to enable it, so that it won’t take up KLE
resource during booting time. However, if you are going to use any of
these, please configure the settings according to your requirements.
Power control
- You should go to the
Power Control
page on KLE Web
to enable the power control over serial port, and configure all required
settings.
For details, please refer to User Guide, Section 4.6.
Radius accounting setting
- If you have a Radius accounting server,
you can go to the
User Management
page on KLE Web and check the
Radius accounting option, and configure all required settings.
For
details, please refer to User Guide, Section 4.15.
Remote authentication
- If you have implemented remote
authentication servers such as Active Directory, Radius or LDAP server,
you can go to the
User Management
page and check the Radius
accounting option, and configured all required settings.
For details,
please refer to User Guide, Section 4.15.
Now KLE is ready for use
Now KLE is ready for connection, and you can distribute the accounts,
passwords and connection information to all KLE users. Basically, one
needs the following information for connection:
1.
KLE access IP address (or domain name) and access port number
for KLE browser management and KLE viewer.
Taking example from previous case, it’s
https://61.220.14.122:5908
for
browser access and
61.220.14.122:5900
for viewer access
2.
User account and password:
For example, Brian / zw2x5W. Or if
you choose a global password policy, it’ll be the global password. Or if
you choose No Password policy, there will be no need for password.
[3.]
The certificates are required only if you enable level 3 security
–
PKI authentication and SSL encryption - for the viewer connection.
Restore to Factory Default
In case you have totally forgot the access IP of your KLE, or you want to restore
KLE to its factory default, just take a pointed needle or pen tip to depress the
recessed
Restore-to-default button for over 5 seconds
on the KLE front-panel
(meanwhile you should do this when KLE is connected to power). Then release
and wait for the KLE to load and restart. When restarting, the Video and Link
LED indicator will be off for some seconds and then the KLE restart itself from
ground up with the default factory settings:
[TCP/IP
settigns]
Port base:
5900
IP address:
192.168.1.200
Subnet mask:
255.255.255.0
Default
gateway:
192.168.1.254
DNS:
192.168.1.1
[username / password]
superuser / superu
Æ
SUPERADMIN privilege
admin / 123456
Æ
ADMIN privilege
user / 123456
Æ
USER privilege
Then you can access KLE again
with Browser by https://192.168.1.200:5908
and
with viewer by 192.168.1.200:5900
Troubleshooting
Q.
I can see the screen output on local console. It’s OK. However, there’s only
No Video on the viewer screen when connected. What’s up?
A. You might have adopted a resolution or refresh rate too peculiar for KLE,
please try to change the frequency to more standard ones such as 70/ 72/ /75 Hz.
And also if that does not help, try to change the pixel dimension as well to say
800 x 600 / 1024 x 768 / 1280 x 1024.
Q.
The KLE booting time has become unduly longer over several minutes.
What’s wrong?
A. Please make sure that the external authentication, PPP server/client, time
server as well as power control settings are correct. If you don’t use all these
features or the authentication/time servers are not available, just try to disable
them to save booting time. If you don’t have all these servers present, the KLE
settings will force it to try to look for them till timeout. That will waste KLE
booting time considerably.
Q:
Video response seems slower in limited bandwidth condition, are there ways
to increase the response speed?
A: There are several ways to increase the response speed on the viewer screen:
(1)
Under bandwidth limited condition, you should select a more economical
encoding scheme such as
Slow Internet or Fast Internet Encoding
scheme
instead of the
LAN
or
No Compression
encoding scheme from the viewer
connection option menu. However, if the connection is made only within
LAN with plenty connection bandwidth,
LAN
or
No Compression
encoding
scheme should be (paradoxically) quicker than Internet scheme – since your
client computer won’t dissipate extra computing power for decoding the
more-compressed internet scheme.
(2)
Use 8-bit color reduction (with only 256 colors instead of the 65K colors in
16-bit settings).
(3)
You can enable Automatic Filter Adjustment (
Web Management/Video
Server page
) for automatic video optimization according to different
bandwidth condition.
(4)
On the other hand, if you don’t want to use Automatic Filter Adjustment,
you could always select either Medium Quality/Low Quality level for more
speed as your Video Filter setting (Web Management/ Video Server Page).
You could also do something to increase the response speed: use a server
desktop of small resolution (such as 800 x 600) and use a solid plain color
background for server desktop.
(5)
Finally, you should check also the networking environment to find if there
is some bottleneck that can be improved or eliminated for more bandwidth
throughput.
Q.
When connection is first made, the display on the viewer screen seems not
centered correctly and there is black margin on the edge of the viewer screen.
How could I eliminate the black strip?
A. The black strip is the offset that will be seen when the display on viewer
screen is not centered correctly. Probably you have not enabled automatic
centering option on KLE, so please check the followings:
(1)
Go to the Video Server page on KLE Web Management Interface to check
whether the
Automatic Screen Alignment
option is enabled. If it is not yet
enabled, please check the option, click
Submit
button and then go to
Apply
Settings
page to click the
Apply Settings
button to restart KLE with new
setting.
(2)
When the viewer connection is made, select the
Adjust Screen
option on
Viewer’s Quick Menu, and the Adjust Screen dialog box appears. On it,
check whether you have
Automatic Centering
enabled. If it is not yet
enabled, please check this option to enable it. If it is already checked, please
uncheck it and then wait for at least 15 seconds and then check the option
again to force the video server to align (center) the display in the viewer
screen.
Q:
I can log in and make successful browser connection with KLE. However, I
cannot make a valid viewer connection or the KLE does not respond to my viewer
connection request. What can I do about it?
A: The KLE video server might not function properly. First, make sure your
account have the SUPERADMIN privilege. If not, you should request one that
has the SUPERADMIN privilege to do the troubleshooting job for you. Next, go
to the
Apply Settings
Page on the Web Management Interface and then hit the
Apply Settings
button to restart KLE. Then wait for at least 10 more seconds for it
to start completely. Try to make the viewer connection again to see if it is back to
normal. Second, If the
Apply settings
button could not bring back the KLE video
server to normal working condition, try to hit the
Emergency Reboot
button
(could be found on the Maintenance Page of the Web Management Interface) for
a complete start from ground level. An Emergency Reboot is a clean reboot, and
it takes longer time for KLE system and video server to load, thus you have to
wait at least a minute for the system to be up and running. Then try to make the
viewer connection again to see if it is brought back to normal function again. A
cold boot of KLE is always a last resort to bring the KLE back – just try to
disconnect the power adapter form KLE and wait for sometime (30 seconds)
before plugging in again for a cold start over.
Technical Support
Please contact your local dealer for technical support issue.
FCC / CE Statements
FCC Statement
:
This equipment has been tested and found to comply with the regulations for a Class B digital device,
pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful
interference when the equipment is operated in a commercial environment. This equipment generates, uses, and can
radiate radio frequency energy and, if not installed and used in accordance with this User Guide, may cause harmful
interference to radio communications. Operation of this equipment in a residential area is likely to cause harmful
interference in which case, the user will be required to correct the interference at his/her own expense.
CE Statement
: This is a Class B product in a domestic environment, this product may cause radio interference, in
which case the user may be required to take adequate measures.
