34.225.188.132
ec2-34-225-188-132.compute-1.amazonaws.com
52.202.242.207
ec2-52-202-242-207.compute-1.amazonaws.com

router10.mail.cornell.edu.
router1.mail.cornell.edu.
router2.mail.cornell.edu.
router3.mail.cornell.edu.
router4.mail.cornell.edu.
router9.mail.cornell.edu.