Users Guide

Command History
This guide is platform-specific. For command information about other platforms, see
the relevant Dell Networking OS Command Line Reference Guide.
Version Description
9.10(0.1) Introduced on the S6010-ON and S4048T-ON.
9.8(1.0) Introduced on the Z9100–ON.
9.8(0.0P5) Introduced on the S4048-ON.
9.8(0.0P2) Introduced on the S3048-ON.
9.8(0.0) Introduced on the S4810, S4820, S5000, S6000, S6000-ON,
and Z9500.
Usage Information
You must have either the System Administrator or Security Administrator privileges to
configure login concurrent-session limit or to enable clear-line.
To limit the number of concurrent sessions that any user can have on console,
auxiliary, and virtual terminal lines, use the login concurrent-session limit
number-of-sessions command.
If the login concurrent-session clear-line enable command is configured,
you are provided with an option to clear any of your existing sessions after a successful
login authentication. When you reach the maximum concurrent session limit, you can
still log in by clearing any of your existing sessions.
Example
The following example shows how to limit the number of concurrent sessions that any
user can have to four:
Dell(conf)# login concurrent-session limit 4
Dell(conf)#
The following example shows how to use the login concurrent-session clear-
line enable command.
Dell(conf)# login concurrent-session clear-line enable
Dell(conf)#
When you try to log in, the following message appears with all your existing concurrent
sessions, providing an option to close any one of the existing sessions:
$ telnet 10.11.178.14
Trying 10.11.178.14...
Connected to 10.11.178.14.
Escape character is '^]'.
Login: admin
Password:
Current sessions for user admin:
Line Location
2 vty 0 10.14.1.97
3 vty 1 10.14.1.97
Clear existing session? [line number/Enter to cancel]:
Control and Monitoring 127