amazon web services - AWS EC2 small is accessible on and off every few minutes -


i have believe route53 dns problem

enter image description here

domain topishare.com. ec2 working fine weeks. no software/configuration changes made

cpu credit ok - more 100

access using public dns (ec2-35-163-250-189.us-west-2.compute.amazonaws.com) or ip ok. access ssh ok.

any idea? can wrong other aws infrastructure? , how can track source of problem?

top ok

ubuntu@ip-172-31-46-249:~$ top top - 09:45:08 13 days,  1:19,  3 users,  load average: 0.02, 0.02, 0.00 tasks: 140 total,   1 running, 139 sleeping,   0 stopped,   0 zombie %cpu(s):  0.3 us,  0.0 sy,  0.0 ni, 99.7 id,  0.0 wa,  0.0 hi,  0.0 si,  0.0 st kib mem :  2046428 total,  1025364 free,   671184 used,   349880 buff/cache kib swap:        0 total,        0 free,        0 used.  1112132 avail mem

disk space ok

    filesystem      size  used avail use% mounted on udev            991m     0  991m   0% /dev tmpfs           200m   21m  180m  11% /run /dev/xvda1      7.8g  4.8g  2.6g  66% / tmpfs          1000m     0 1000m   0% /dev/shm tmpfs           5.0m     0  5.0m   0% /run/lock tmpfs          1000m     0 1000m   0% /sys/fs/cgroup tmpfs           200m     0  200m   0% /run/user/1000


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