Useful Stuff

Question 1

How to configure a DNS server to run on a router or switch

Answer 1

Information taken from link

1. Enable the DNS server
   ip dns server
2. (Optional) Add additional DNS servers
   router(config)#ip name-server *ip address
3. (Optional) add a queue limit to the DNS server processes
   router(config)#ip dns server queue limit forwarder 10
4. Configure local hosts
   router(config)#ip host fqdn hostname ip address
5. Configure the router as the primary DNS server for the domain.
   router(config)#**ip dns primary domain-name soa primary-server-name mailbox-server-name
6. Create an NS resource record to be used by the DNS server
   router(config)#ip host domain-name ns * server-name*

Check configuration with
router#debug domain