Domain Name System (DNS) Caching Lookup

Due : September 18, 2009

Assignment: 
Install and configure domain name server software, manage a DNS domain.

Requirements: 

• Configure two caching lookup domain name servers.
• Correct the hostname, domain, and DNS lookup of all systems.

Configure two caching lookup domain name servers: 

• Both of your DNS servers will be used as caching lookup servers.
• Only allow hosts from your 32 ip addresses to ask for caching DNS lookups.

Correct the hostname, domain, and DNS lookup of all systems: 

• Change the /etc configuration files so that the operating system knows the correct host and domain names for your systems.
• Change the /etc configuration files so that your systems use your DNS lookup servers first and second. As a third backup they may use 144.38.192.2.
• Change the /etc configuration files so that your systems use look for hosts in your domain automatically.
• Verify that your configuration changes are working correctly.

Pass-off Procedure: 

• Use the CIT submission system.
• Submit /etc/resolv.conf from each system.
• Submit /etc/hosts from each system.
• Submit /etc/hostname from each system.

Links and Help: 

• Sample registrars:
  Go Daddy
• InterNic
• Testing: man dig
• http://www.dnsreport.com/
• Debugging: less /var/log/daemon.log
• Configuration Files: /etc/bind