Tripp Lite B020-U16-19-IP Owner's Manual page 53

7. Administration
Login String
The Login String allows the KVM's IP address to be more secure by
adding extra text to the end of it. When text is entered into the Login
String field, users will need to include a forward slash (/) and the
Login String at the end of the URL to access the KVM switch. For
example, if a Login String of abcdefg is entered, the user must enter
a URL such as 192.168.0.126/abcdefg.
The following characters are allowed in the login string:
0 through 9, a through z, A through Z, ~ ! @$^&*()_+'<>,.|
The following characters are not allowed:
%":/?#\[Space]
Note: If a Login String is not entered, anyone can access the KVM
switch using the IP Adress alone, making the installation less secure.
Account Policy
The Account Policy section allows rules for usernames and passwords to be regulated. The settings in this section are described in the table
below.
Item
Minimum Username Length
Minimum Password Length
Password Must Contain
at Least
Enforce Password History
Encryption
This section allows you to set different encryption settings for the Keyboard/Mouse, Video and Virtual Media functions of the KVM switch. You
can choose any combination of encryption methods (DES, 3DES, AES and/or RC4), you can choose to randomly switch between them or you
can choose no encryption at all. Although enabling encryption will add more security to you installation, it can also slow down system perfor-
mance (mouse, keyboard, video), with the following having the most impact:
• RC4 impacts performance the least out of the four encryption methods. DES is second to least in impact, followed by 3DES and AES.
• Of all the possible combinations, a combination of RC4 and DES impacts performance the least.
( continued )
Description
Sets the minimum number of characters required for each username. Values from 1 to 16 can be entered.
Sets the minimum number of characters required for each password. Values can be from 0 to 16.
• One Uppercase – Checking this box will require that each password contain one uppercase letter
• One Lowercase – Checking this box will require that each password contain one lowercase letter
• One Number – Checking this box will require that each password contain one number
Note: Current usernames and passwords are not affected when these settings are changed. Only usernames and passwords
that are created after these settings have been changed must follow the rules.
This policy setting determines the number of unique new passwords that must be associated with a user account before an old
password can be reused. User-specified number from 0 through 24.
MAC Filtering
To add a MAC filter:
1. Click Add. A dialog box similar to the one below appears:
2. Type in the desired MAC address and click OK.
3. Repeat these steps for any additional MAC addresses you want
to filter.
To delete a MAC filter:
Select the desired MAC filter from the list and click Delete.
To modify a MAC filter:
1. Select the desired MAC filter from the list and click Modify. A
Modify dialog box box appears.
2. Delete the old address and replace it with the new one. Click OK.
Note: To block a computer from accessing the B020-Series KVM
Switch, you do not need to filter both its IP address and its MAC
address. Any computer blocked by a MAC filter will be denied access
to the KVM switch, even if the computer is allowed to access the
KVM switch under the IP filters that are set up.
If any filters have been configured, they appear in the IP Filter and/or
MAC Filter list boxes.
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