Dell PowerEdge FN I/O Module Command Line Reference Guide 9.10(0.0)

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login concurrent-session

Configures the limit of concurrent sessions for all users on console and virtual terminal lines.

Syntax

login concurrent-session {limit number-of-sessions | clear—line enable}

no login concurrent session {limit number-of-sessions | clear—line enable}

Parameters

limit number-of-sessions	Sets the number of concurrent sessions that any user can have on console and virtual terminal lines. The range is from 1 to 12 (10 VTY lines, one console, and one AUX line).
clear-line enable	Enables you to clear your existing sessions.

Defaults

Not configured. You can use all the available sessions.

Command Modes

CONFIGURATION

Supported Modes

Full–Switch

Command History

Version	Description
9.9(0.0)	Introduced on the FN IOM.
9.8(0.0)	Introduced on the MXL 10/40GbE Switch IO Module.

Usage Information

You must have either the System Administrator or Security Administrator privileges to configure login concurrent-session limit or to enable clear-line.

Use the login concurrent-session limit number-of-sessions command to limit the number of concurrent sessions that any user can have on console, aux, and virtual terminal lines.

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 login 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 login, 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]:

When you try to create more than the permitted number of sessions, the following message appears, prompting you to close one of your existing sessions. You must close any of your existing sessions to login to the system .

$ telnet 10.11.178.14
                                             Trying 10.11.178.14...
                                             Connected to 10.11.178.14.
                                             Escape character is '^]'.
                                             Login: admin
                                             Password:
                                             Maximum concurrent sessions for the user reached.
                                             Current sessions for user admin:
                                             Line              Location
                                             2  vty 0          10.14.1.97
                                             3  vty 1          10.14.1.97
                                             4  vty 2          10.14.1.97
                                             5  vty 3          10.14.1.97
                                             Clear existing session? [line number/Enter to cancel]:

Related Commands

login statistics — Enable and configure user login statistics on console and virtual terminal lines.

show login statistics — Displays login statistics of users who have used the console or virtual terminal lines to log in to the system.