Enabling SSH, # license | Cisco Systems OL-5650-02 guide

Chapter 2 Configuring the Secure Shell Daemon Protocol

Enabling SSH

This chapter contains the following major sections:

•Enabling SSH

•Configuring SSH Access

•Configuring SSHD in the CSS

•Configuring Telnet Access When Using SSHD

•Showing SSHD Configurations

Enabling SSH

To enable SSH functionality in your CSS, you must purchase the Secure Management software option. If you purchased the Secure Management software option:

•During the initial CSS order placement, the software Claim Certificate is included in the accessory kit.

•After you receive the CSS, Cisco Systems sends the Claim Certificate to you by mail.

Note If you cannot locate the Secure Management option Claim Certificate in the accessory kit, call the Cisco Licensing department in the Technical Assistance Center at (800) 553-2447 or email them at licensing@cisco.com.

Follow the instructions on the Claim Certificate to obtain the Secure Management software license key.

To enter the Secure Management license key and activate SSH:

1.Log in to the CSS and enter the license command.

# license

2.Enter the Secure Management license key.

Enter the Software License Key (q to quit): nnnnnnnnnnnn

The Secure Management license key is now properly installed and the SSH function activated.

	Cisco Content Services Switch Security Configuration Guide
2-2	OL-5650-02

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Cisco Systems OL-5650-02 manual Enabling SSH, # license

Contents

Cisco Content Services Switch Security Configuration Guide Cisco Content Services Switch Security Configuration Guide N T E N T S Iii ACL Overview Configuring the CSS as a Client of a Radius Server Configuring Firewall Load Balancing Example of Fwlb Vii Viii B L E S OL-5650-02 Preface Audience How to Use This GuideXii Related Documentation Xiii Rmon Xiv Document Title Description Symbols and Conventions Xvi Cisco.com Obtaining DocumentationXvii Documentation Feedback Documentation DVDOrdering Documentation Xviii Cisco Product Security Overview Reporting Security Problems in Cisco ProductsXix Obtaining Technical Assistance Cisco Technical Support Website Submitting a Service Request Xxi Definitions of Service Request Severity Xxii Xxiii Xxiv Controlling CSS Access Changing the Administrative Username and Password Config# username-offdm bobo password secret Creating Usernames and Passwords Config# username picard password captain superuser Controlling CSS Access Creating Usernames and Passwords Config# no username picard Config# username picard password captain superuser NwbnnnrConfig# username picard password flute superuser Controlling Remote User Access to the CSS Configuring Virtual Authentication #config virtual authentication primary tacacs Configuring Console Authentication#config virtual authentication secondary local #config console authentication secondary local #config console authentication primary tacacs#config no console authentication Controlling Administrative Access to the CSS Enabling Administrative Access to the CSS Disabling Administrative Access to the CSS Config# no restrict web-mgmt Controlling CSS Network Traffic Through Access Control Lists Config# restrict telnet ACL Overview ACL ACL Configuration Quick Start Config-acl7#clause 15 permit any any destination any Config-acl7#clause 10 deny any any destination range 20Config-acl7#apply circuit-VLAN1 Creating an ACL Config-acl7#remove circuit-VLAN1 Config# acl disableDeleting an ACL Configuring Clauses Cisco Content Services Switch Security Configuration Guide Variables Options Parameters Destination content ownername/ rulename for an Variables OptionsParameters Variables Options Parameters Show group ? Adding a Clause When ACLs are Globally Enabled Prefer Config-acl7apply circuit-VLAN1 Config-acl7remove circuit-VLAN1Deleting a Clause Applying an ACL to a Circuit or DNS Queries Removing an ACL from Circuits or DNS Queries Enabling ACLs on the CSS Disabling ACLs on the CSS Showing ACLs Field Description Setting the Show ACL Counters to Zero Logging ACL Activity Config-acl7#clause 1 log enable Config-acl7#clause 1 log disable Config# no logging subsystem acl ACL Example Configuring Network Qualifier Lists for ACLs Describing an NQL Creating an NQLAdding Networks to an NQL Config# logging subsystem nql level debug-7 Config-nqlbypassnql#no ip address 192.168.0.0/16 Showing NQL Configurations Adding an NQL to an ACL Clause Configuring the Secure Shell Daemon Protocol Enabling SSH # license Configuring SSH Access Configuring Sshd in the CSSConfiguring Sshd Keepalive Config# no restrict ssh Configuring Sshd Port Configuring Sshd Server-Keybits Configuring Sshd Version Config# sshd server-keybitsConfig# no sshd server-keybits Config# sshd version Configuring Telnet Access When Using Sshd Showing Sshd ConfigurationsConfig# no restrict telnet # show sshd config # show sshd sessions Ptyfd # show sshd version Radius Server Configuring the CSS as a Client of a Radius Server Config# radius-server primary 172.27.56.76 secret Hello Radius Configuration Quick StartConfig# radius-server secondary 172.27.56.79 secret Hello Configuring a Radius Server for Use with the CSS #config virtual authentication primary radius Configuring Authentication Settings Configuring Authorization Settings Specifying a Primary Radius Server Config# no radius-server secondary Config# no radius-server primarySpecifying a Secondary Radius Server Configuring the Radius Server Timeouts Configuring the Radius Server RetransmitsConfig# radius-server timeout Config# no radius-server timeout Configuring the Radius Server Dead-Time Config# no radius-server retransmitConfig# radius-server dead-time Config# no radius-server dead-time Config# show radius statistics secondary DOWN, Unknown 3describes the fields in the show radius statistics output OL-5650-02 TACACS+ Server TACACS+ Configuration Quick Start Config# show tacacs-server Configuring Authorization Settings Configuring Global TACACS+ Attributes #config tacacs-server timeout Setting the Global CSS TACACS+ Timeout Period#config no tacacs-server timeout Setting the Global TACACS+ Keepalive Frequency #config tacacs-server key market#config tacacs-server key acskefterefesdtx #config no tacacs-server key Config# no tacacs-server frequency Defining a TACACS+ Server OL-5650-02 #config no tacacs-server 192.168.11.1 Setting TACACS+ Authorization #config tacacs-server authorize config #config tacacs-server authorize non-config#config no tacacs-server authorize config #config no tacacs-server authorize non-config Setting TACACS+ Accounting Showing TACACS+ Server Configuration Information Field Description OL-5650-02 Configuring Firewall Load Balancing Overview of Fwlb Configuring Fwlb Firewall Synchronization Config# ip firewall 1 192.168.27.1 192.168.28.1 Configuring a Keepalive Timeout for a FirewallConfig# no ip firewall Config# ip firewall timeout Configuring an IP Static Route for a FirewallConfig# no ip firewall timeout Configuring Ospf to Advertise Firewall Routes Config# ip route 192.168.2.0/24 firewall 1Config# no ip route 192.168.2.0/24 firewall Config# ospf redistribute firewall metric 3 type1 Configuring RIP to Advertise Firewall Routes Example of Fwlb Static Route ConfigurationConfig# no ospf redistribute firewall Config# rip redistribute firewall Config# ip firewall 1 192.168.28.1 192.168.27.1 Config# ip route 192.168.2.0/24 firewallConfig# ip firewall 2 192.168.28.2 192.168.27.2 Config# ip route 0.0.0.0/0 firewall Example of Fwlb Configuring Fwlb with VIP and Virtual Interface Redundancy Fwlb with VIP/Interface Redundancy Configuration Cisco Content Services Switch Security Configuration Guide Example of Firewall and Route Configurations CSS-OUT-L Configuration CSS-IN-L Configuration Config# show flows Config# show flows 192.165.22.1Displaying Firewall Flow Summaries Config# show ip routes firewall Displaying Firewall IP Routes Config# show ip firewall Displaying Firewall IP Information OL-5650-02 D E IN-1 IN-2 FTP IN-3 Radius IN-4 XML IN-5 IN-6