Week 9, Comp [34]49, Oct 23 Midterm demo of Loyola system basic pre-registration setup: ip address 10.201.88.58 mask 255.255.240.0 /20 router 10.201.80.1 dns 10.201.80.10 post-registration: ip 10.39.17.229 mask /20 router 10.39.16.1 dns 147.126.1.{1,2} All the pre-registration hosts (10.201.80.{1,10} can be pinged from a "normal" host. However, all attempts in this preregistration state to ping or arp the normal ip router, 10.39.16.1, failed; ip, mask, and router were all set as indicated. This strongly suggests that I was firewalled off. (I didn't try nmap, though I should have.) pre-registration, *everything* resolves with nslookup to 10.201.80.10. Well, almost everything! EXCEPT microsoft.com root@valhal:/etc/dhcp3# nslookup > google.com Server: 10.201.80.10 Address: 10.201.80.10#53 Non-authoritative answer: Name: google.com Address: 10.201.80.10 > microsoft.com <======== WATCH!! Server: 10.201.80.10 Address: 10.201.80.10#53 Non-authoritative answer: Name: microsoft.com Address: 207.46.197.32 <======= HA! NOT BLOCKED!!! Name: microsoft.com Address: 207.46.232.182 > palinaspresident.us Server: 10.201.80.10 Address: 10.201.80.10#53 Non-authoritative answer: Name: palinaspresident.us Address: 10.201.80.10 > sun.com Server: 10.201.80.10 Address: 10.201.80.10#53 Non-authoritative answer: Name: sun.com Address: 10.201.80.10 > ubuntu.com Server: 10.201.80.10 Address: 10.201.80.10#53 Non-authoritative answer: Name: ubuntu.com Address: 10.201.80.10 > apple.com <======== THEM TOO! Server: 10.201.80.10 Address: 10.201.80.10#53 Non-authoritative answer: Name: apple.com Address: 17.149.160.49