Dell SMA 200 Administration Manual page 485

29 What does the 'encrypt settings file' check box do?
Answer: This setting encrypts the settings file so that if it is exported it cannot be read by unauthorized
sources. Although it is encrypted, it can be loaded back onto the SMA/SRA appliance (or a replacement
appliance) and decrypted. If this box is not selected, the exported settings file is clear-text and can be
read by anyone.
30 What does the 'store settings' button do?
Answer: By default, the settings are automatically stored on a SMA/SRA appliance any time a change to
programming is made, but this can be shut off if desired. If this is disabled, all unsaved changes to the
appliance are lost. This feature is most useful when you are unsure of making a change that could result
in the box locking up or dropping off the network. If the setting is not immediately saved, you can
power-cycle the box and it returns to the previous state before the change was made.
31 What does the 'create backup' button do?
Answer: This feature allows you to create a backup snapshot of the firmware and settings into a special
file that can be reverted to from the management interface or from SafeMode. Dell SonicWALL strongly
recommends creating system backup right before loading new software, or making significant changes to
the programming of the appliance.
32 What is 'SafeMode'?
Answer: SafeMode is a feature of the SMA/SRA appliance that allows administrators to switch between
software image builds and revert to older versions in case a new software image turns out to cause
issues. In cases of software image corruption, the appliance boots into a special interface mode that
allows the administrator to choose which version to boot, or load a new version of the software image.
33 How do I access the SafeMode menu?
Answer: In emergency situations, you can access the SafeMode menu by holding in Reset on the
SMA/SRA appliance (the small pinhole button located on the front of the SMA/SRA appliances) for 12-14
seconds until the 'Test' LED begins quickly flashing yellow. After the SMA/SRA appliance has booted into
the SafeMode menu, assign a workstation a temporary IP address in the 192.168.200.x subnet, such as
192.168.200.100, and attach it to the X0 interface on the SMA/SRA appliance. Then, using a modern Web
browser (Microsoft IE6.x+, Mozilla 1.4+), access the special SafeMode GUI using the appliance's default IP
address of 192.168.200.1. You are able to boot the appliance using a previously saved backup snapshot,
or you can upload a new version of software with Upload New Software image.
34 Can I change the colors of the portal pages?
Answer: This is not supported in the current releases, but is planned for a future software release.
35 What authentication methods are supported?
Answer: Local database, RADIUS, Active Directory, and LDAP.
36 I configured my SMA/SRA appliance to use Active Directory as the authentication method, but it fails
with a very strange error message. Why?
Answer: The appliances must be precisely time-synchronized with each other or the authentication
process fails. Ensure that the SMA/SRA appliance and the Active Directory server are both using NTP to
keep their internal clocks synchronized.
37 I created a FTP bookmark, but when I access it, the filenames are garbled – why?
Answer: If you are using a Windows-based FTP server, you should change the directory listing style to
'UNIX' instead of 'MS-DOS'.
38 Where can I get a VNC client?
Answer: Dell SonicWALL has done extensive testing with RealVNC. It can be downloaded at:
http://www.realvnc.com/download.html
39 Are the SRA 4600/1600 appliances fully supported by GMS or Analyzer?
Answer: Yes.
Dell SonicWALL Secure Mobile Access 8.5
Administration Guide
485