Enterasys Networks CSX6000 - Manual (Page 181)

Central Site Remote Access Switch 181
C ONFIGURING S YSTEM O PTIONS AND I NFORMATION
Administrative Session
T IMEOUT V ALUE
Allows you to terminate login sessions after the configured “time-out value” length in time. If “0”
is entered, the value will be disabled. The time-out will be enabled by entering a number greater
than 0. The range is from 0 to 1,440 minutes.
N UMBER OF S ESSIONS
This value disables, or limits the number of Telnet administrative sessions allowed. The default
value and the maximum value is 3. If 0 is entered, the Telnet server will be disabled.
T ELNET S ERVER TCP P ORT N UMBER
The port number of the Telnet Server TCP Port. The default value is 23.
E MERGENCY T ELNET S ERVER TCP P ORT N UMBER
The port number for emergency Telnet sessions. The default for this emergency port is 9000.
A DMINISTRATIVE S ESSION B ACKGROUND I NFORMATION
A LTERNATIVE D ATABASE L OCATION B ACKGROUND I NFORMATION
In addition to using the local password file to validate a remote device who wishes to login to the
CyberSWITCH, you may also choose to use an off-node database server such as TACACS or ACE.
Using the off-node server allows you to share the password file on the database server for multiple
systems. It may also provide more secure access to the CyberSWITCH: some of the platforms are
PCs, and files on those platforms could be changed, while the database server can be physically
more secure.
As an alternative to the local password file, the user can now use security token cards along with
the TACACS or the ACE server, which provide the use of dynamic, one-time password capability.
S ESSION I NACTIVITY B ACKGROUND I NFORMATION
This option may be set to terminate login sessions after a configured inactivity timeout period.
Since there are only a limited number of sessions available, this avoids the problem of
administrator lockout because a user forgets to logout from the system.
N UMBER OF A DMINISTRATIVE T ELNET S ESSIONS B ACKGROUND I NFORMATION
Whenever IP routing is enabled, three Telnet sessions are available for system administration.
Telnet access is a very useful method to manage the CyberSWITCH remotely, but there may be a
case where it is desirable to disable the Telnet access for security reasons. With this configuration
option, Telnet access to the system can be disabled, or the number of Telnet sessions can be limited
to less than 3.
T ELNET S ERVER TCP P ORT N UMBER B ACKGROUND I NFORMATION
TCP stands for Transmission Control Protocol, which uses IP to deliver its packets. The default
value for this port is 23. However, if you choose to use a different port number, you may adjust this
value through CFGEDIT. The Client must be aware of the port number you have configured.