User`s manual

IA260 WinCE User’s Manual Getting Started
Operating the IA260-CE Computer via Telnet
Before operating your IA260-CE computer using a Telnet client, we suggest that you change the
network settings of the computer (see an earlier section) so that at least one of the two network
ports is on the same LAN as your development workstation.
Use a cross-over Ethernet cable to connect your development workstation directly to the target
computer, or a straight-through Ethernet cable to connect the computer to a LAN hub or switch.
Next, use the Telnet client on your development workstation to connect to the Telnet console
utility of the target computer. Once a connection is established, type the login name and password
as requested to log on to the computer.
After logging in via the console port or a Telnet client, several busybox commands are available to
operate the computer. Use HELP to display all of the commands, or type HELP [command
name] to display extended help for the selected command. Some of the commands, such as DATE
and TIME are very useful for managing the computer’s the system time. Other commands, such
as DIR and MKDIR are good utilities for file management. For example, to inspect the file
structure of the root directory, simply type DIR.
\> dir /b
NORFlash
My Documents
Program Files
Temp
Windows
User/Group Management
User Group—You should assign specific services, such as ftp and Telnet, to defined user groups
so that these services are accessible only by the users within the permissible user group. Three user
groups, namely ftpd, telnetd, and httpd, are created by default for your convenience.
Adding a Group—Use the command useradd –g <groupName> to create a user group.
\> useradd –g yyyy
group yyyy has been added.
Deleting a Group—To remove a group, use the command userdel –g <groupName>.
\> userdel –g yyyy
group yyyy has been removed.
Adding a User—Use the command useradd <newUserID> to add a user for accessing the system.
The user’s password, by default, is the same as the user name.
\> useradd xxxx
user xxxx has been added.
In addition, you can permit this user to access a particular service by typing -g followed by the
user group name of the service, i.e., useradd –g <groupName> <newUserID>. For example,
\> useradd –g telnetd xxxx
user xxxx is existent
group telnetd is existent
user xxxx has been added to group yyyy
Deleting a User—Use the command userdel <userID> to delete a user from the system. User
“admin” CANNOT be deleted.
\> userdel xxxx
user xxxx has been deleted
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