Cisco ASR 9000 User Manual

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Cisco ASR 9000 Series Aggregation Services Router Getting Started Guide
OL-28417-02
Configuring Additional Router Features
This chapter contains instructions and information for entering basic configurations using the
command-line interface (CLI).
Contents
• Configuring the Domain Name and Domain Name Server, page 79
• Configuring Telnet, HTTP, and XML Host Services, page 81
• Managing Configuration History and Rollback, page 85
• Configuring Logging and Logging Correlation, page 90
• Creating and Modifying User Accounts and User Groups, page 94
• Configuring Software Entitlement, page 97
• Configuration Limiting, page 98
Configuring the Domain Name and Domain Name Server
Configure a domain name and Domain Name Server (DNS) for your router to contact other devices on
your network efficiently. Use the following guidelines:
• To define a default domain name that the Cisco IOS XR software uses to complete unqualified
hostnames (names without a dotted-decimal domain name), use the domain-name command in
global configuration mode.
• To specify the address of one or more name servers to use for name and address resolution, use the
domain name-server command in global configuration mode. If no name server address is
specified, the default name server is 255.255.255.255 so the DNS lookup can be broadcast to the
local network segment. If a DNS server is in the local network, it replies. If not, there might be a
server that knows how to forward the DNS request to the correct DNS server.
• Use the show hosts command in EXEC mode to display the default domain name, the style of name
lookup service, a list of name server hosts, and the cached list of hostnames and addresses.

Cisco ASR 9000 Specifications

General

Brand	Cisco
Model	ASR 9000
Category	Network Router
Language	English