All Machines are in "us-oregon".  They can be connected to with:

ssh -i keys/us-oregon -l aws-user HOSTNAME
sudo (no password) is installed.

50.112.29.113 team21_app # ID 275070001, private IP 10.252.25.174
50.112.21.33 team21_db1 # ID 275071001, private IP 10.252.15.144
50.112.22.233 team21_db2 # ID 275072001, private IP 10.252.13.227
50.112.28.114 team21_cacti # ID 275073001, private IP 10.252.20.143

50.112.16.210 team22_app # ID 275074001, private IP 10.252.2.177
50.112.52.150 team22_db1 # ID 275075001, private IP 10.252.40.101
50.112.39.13 team22_db2 # ID 275076001, private IP 10.252.4.93
50.112.24.144 team22_cacti # ID 275077001, private IP 10.252.21.22