Cisco Systems MDS 9020 manual Telnet Server Connection, Working with Configuration Files

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Chapter 3 Initial Configuration

Telnet Server Connection

Se n d d o c u m e n t a t i o n c o m m e n t s t o m d s f e e d b a ck - d o c @ c i s c o . c o m

Telnet Server Connection

The Telnet server is enabled by default on a Cisco MDS 9020 Fabric Switch. If you require a secure SSH connection, you need to disable the default Telnet connection and then enable the SSH connection. (See the “Enabling SSH Service” section on page 9-9 .)

Tip A maximum of nine Telnet sessions are allowed on a Cisco MDS 9020 Fabric Switch.

Make sure the terminal is connected to the switch and that the switch and terminal are both powered on.

Disabling a Telnet Connection

To disable Telnet connections to the switch, perform this task:

 

Command

Purpose

Step 1

 

 

switch# config t

Enters configuration mode.

Step 2

 

 

switch(config)# no telnet server enable

Disables the Telnet server.

 

updated

 

 

 

 

Working with Configuration Files

Configuration files can contain some or all of the commands needed to configure one or more switches. For example, you might want to download the same configuration file to several switches that have the same hardware configuration so that they have identical module and port configurations.

This section describes how to work with configuration files and has the following topics:

Displaying Configuration Files, page 3-17

Downloading Configuration Files to the Switch, page 3-19

Saving the Configuration, page 3-20

Copying Files, page 3-20

Backing Up the Current Configuration, page 3-20

Rolling Back to a Previous Configuration, page 3-21

Cisco MDS 9020 Fabric Switch Configuration Guide and Command Reference

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OL-6988-02

 

 

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Contents Initial Configuration Starting a Cisco MDS 9020 Fabric Switch Initial Setup RoutinePreparing to Configure the Switch Default LoginSetup Options SubnetworkAssigning Setup Information Enter yes to enter the setup modeEnter yes no is the default to create additional accounts Enter the user passwordEnter a name for the switch Enter the default gateway IP addressEnter no no is the default to not configure the NTP server Enter no no is the default to disable the SSH serviceEnter yes yes is default to use and save this configuration Using the setup Command Accessing the Switch 2illustrates serial console access and out-of-band accessWhere Do You Go Next? Assigning a Switch NameVerifying the Status of the Switch Configuring Date and Time Configuring the Time ZoneAdjusting for Daylight Saving Time Management Interface Configuration NTP ConfigurationObtaining Remote Management Access Using the force OptionDefault Gateway Configuration Configuring the Default GatewayWorking with Configuration Files Disables the Telnet serverTelnet Server Connection Disabling a Telnet ConnectionDisplaying Configuration Files Initial Configuration Working with Configuration Files Downloading Configuration Files to the Switch Saving Configuration Files to an External DeviceBacking Up the Current Configuration Saving the ConfigurationCopying Files Rolling Back to a Previous Configuration Deleting FilesInitial Configuration Deleting Files