Cisco 2950 Software Configuration Guide - Page 169
Configuring a System Prompt, Understanding DNS
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Chapter 8 Administering the Switch Configuring a System Name and Prompt Configuring a System Prompt Beginning in privileged EXEC mode, follow these steps to manually configure a system prompt: Step 1 Step 2 Command configure terminal prompt string Step 3 Step 4 Step 5 end show running-config copy running-config startup-config Purpose Enter global configuration mode. Configure the command-line prompt to override the setting from the hostname command. The default prompt is either switch or the name defined with the hostname global configuration command, followed by an angle bracket (>) for user EXEC mode or a pound sign (#) for privileged EXEC mode. The prompt can consist of all printing characters and escape sequences. Return to privileged EXEC mode. Verify your entries. (Optional) Save your entries in the configuration file. To return to the default prompt, use the no prompt [string] global configuration command. Understanding DNS The DNS protocol controls the Domain Name System (DNS), a distributed database with which you can map host names to IP addresses. When you configure DNS on your switch, you can substitute the host name for the IP address with all IP commands, such as ping, telnet, connect, and related Telnet support operations. IP defines a hierarchical naming scheme that allows a device to be identified by its location or domain. Domain names are pieced together with periods (.) as the delimiting characters. For example, Cisco Systems is a commercial organization that IP identifies by a com domain name, so its domain name is cisco.com. A specific device in this domain, for example, the File Transfer Protocol (FTP) system is identified as ftp.cisco.com. To keep track of domain names, IP has defined the concept of a domain name server, which holds a cache (or database) of names mapped to IP addresses. To map domain names to IP addresses, you must first identify the host names, specify the name server that is present on your network, and enable the DNS. This section contains this configuration information: • Default DNS Configuration, page 8-18 • Setting Up DNS, page 8-18 • Displaying the DNS Configuration, page 8-19 78-11380-10 Catalyst 2950 and Catalyst 2955 Switch Software Configuration Guide 8-17
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