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ianneub/ec2.log

Created June 26, 2013 15:51
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Comparing DNS checks when running `hostname -r` in both VPC and non-VPC EC2 instances.
Raw
ec2.log
Non - VPC
sudo tcpdump -nieth0 -s0 port 53
hostname -f
15:47:51.310998 IP 10.117.95.179.44198 > 172.16.0.23.53: 44142+ AAAA? ip-10-117-95-179.ec2.internal. (47)
15:47:51.311358 IP 172.16.0.23.53 > 10.117.95.179.44198: 44142 0/1/0 (108)
15:47:51.311785 IP 10.117.95.179.37773 > 172.16.0.23.53: 50187+ AAAA? ip-10-117-95-179. (34)
15:47:51.312091 IP 172.16.0.23.53 > 10.117.95.179.37773: 50187 NXDomain 0/1/0 (109)
15:47:51.312303 IP 10.117.95.179.57413 > 172.16.0.23.53: 3240+ A? ip-10-117-95-179.ec2.internal. (47)
15:47:51.312517 IP 172.16.0.23.53 > 10.117.95.179.57413: 3240 1/0/0 A 10.117.95.179 (63)
Raw
vpc.log
VPC
sudo tcpdump -nieth0 -s0 port 53
hostname -f
15:51:09.401079 IP 10.1.23.61.43437 > 10.1.0.2.53: 16749+ AAAA? ip-10-1-23-61. (31)
15:51:09.401306 IP 10.1.0.2.53 > 10.1.23.61.43437: 16749 NXDomain 0/1/0 (106)
15:51:09.401576 IP 10.1.23.61.36923 > 10.1.0.2.53: 22825+ A? ip-10-1-23-61. (31)
15:51:09.401895 IP 10.1.0.2.53 > 10.1.23.61.36923: 22825 NXDomain 0/1/0 (106)
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