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Cannot ping AWS EC2 instance
...denied. The exception you need to add to the Security Group depends on the service you need to make available to the internet.
If it is a webserver you will need to allow access to port 80 for 0.0.0.0/0 (which means any IP address).
To allow pinging the instance you need to enable ICMP traffic.
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Real life trading API [closed]
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i think those services does not offer real time data :(
– frabiacca
Nov 4 '10 at 10:24
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