Transcript How to configure DNS for Cisco Routers and Switches

How to configure DNS for Cisco
Routers and Switches
http://www.router-switch.com/
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Domain Name System (DNS) is a type of service that
translates names into IP addresses for computers,
services, or any resource connected to the Internet or
a private network. This allows us to successfully find
and connect to Internet websites and services no
matter where they are. In many cases, where a local
DNS server is not available, we are forced to either
use our ISP's DNS servers or some public DNS server,
however, this can sometimes prove troublesome.
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In the Cisco world, you have the ability to configure multiple DNS
Servers on a Cisco device running the Cisco Internetwork Operating
System (Cisco IOS) to ease network management. Following the guide
to configure a DNS server on a Cisco Router and/or Switch.
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Switch > en
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Switch #conf t
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Switch (config)#no ip domain look
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Switch (config)#user cisco pr 15 pass ccie
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Switch (config)#ho SW1
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SW1(config)#line con 0
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SW1(config-line)#exec-tim 0 0
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SW1(config-line)#logg syn
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SW1(config-line)#exit
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SW1(config)#line vty 0 4
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SW1(config-line)#logg syn
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SW1(config-line)#login loc
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SW1(config-line)#exec-tim 30 0
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SW1(config-line)#exit
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SW1(config)#interface vlan 1
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SW1(config-if)#ip address 10.10.10.1 255.255.255.0
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SW1(config-if)#no shu
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SW1(config-if)#exit
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SW1(config)#ip name-server
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SW1(config)#ip name-server 10.10.10.100
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SW1(config)#end
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SW1#wr
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This example can be applied to all Cisco
switches, such as catalyst 3750 series
switch, Cisco 3650 switch, Cisco 3850
switch, catalyst 6500 series switch etc, all
Cisco routers, like Cisco 1900, Cisco 2900
series routers, Cisco 3900 routers, Cisco
1800, Cisco 2800 and Cisco 3800 etc.
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