User manual

105G Wireless Gateway User Manual
Page 159 ©February 2009
Appendix 2 IT Functionality
105G-ET1 Ethernet module only
File system
The file system is a fixed-size storage area with a hierarchical directory structure. Any user- or
application data can be stored in files within the file system. Files can be grouped in directories
for increased readability.
The file system features two security levels. Depending on security level, different users can
have access to different files and directories. The file system can be accessed via FTP, Telnet,
and HTTP.
• Case Sensitivity
The file system is case sensitive. This means that the file ‘CONFIG.txt’ is not identical to
the file ‘config.txt’.
• Filename / Pathname length
Filenames can be a maximum of 48 characters long. Pathnames can be 256 characters in
total, filename included.
• File size
File size is not restricted. However, the size cannot exceed the space available in the file
system.
• Free space
Approximately 1.4MB non-volatile (FLASH).
Security
The file system features two security levels; Admin and Normal. Security level is set at a per
user basis, or globally via setting Admin Mode in configuration software Ethernet Settings.
• Normal Mode
This mode is recommended for normal operation, so that web pages and other settings
are protected from FTP and Telnet access. In this mode, the FTP and Telnet servers are
enabled only if there is a subdirectory called “\user”. When a normal user connects via
FTP or Telnet, this directory will be their root directory. The user will not be able to
access files outside this directory and its subdirectories.
If user/password protection for FTP and Telnet is required in normal mode, a file called
“sys_pswd.cfg” must be placed in the directory “\user\pswd\”. Files in this directory
cannot be accessed from a web browser. If Admin Mode has not been enabled by
configuration software and a valid admin password file (See “System Files”) is found,
the module will operate in this mode (i.e. an admin password file with at least one entry
must exist, and the “\user” directory must exist to enable this mode).