Networking Tidbits:

 

Public / Free / Open DNS Servers

www.opendns.com

IP Addresses: 208.67.222.222 & 208.67.220.220

Pornography Blocked Public DNS Servers
www.scrubit.com

IP Addresses: 67.138.54.100 & 207.225.209.66

 

 

NTP Time Servers

www.ntp.org

IP Addresses: 192.43.244.18 & 129.6.15.28

Mode: Unicast

More NTP Sites and IP addresses can be found here:
http://tf.nist.gov/service/time-servers.html