Can amazon ec2 connect to an external oracle database server?

Question

my project requires me to use PHP and connect to the oracle database service hosted by our department. I want to use amazon ec2 to deploy the project. Is it able to connect to an external oracle database from amazon ec2 by PHP?

I've tried google app engine. It doesn't support external database connection. what a drawback!

Answer 1

Yes, it does. By default, Ec2 instances launched in EC2-Classic have full outbound access. So, the Ec2 instance can connect to your Oracle DB Provided your Oracle DB is accessible over the internet (in other words, your Oracle DB has a public IP address and you have firewall rules configured on your end to allow inbound access to Oracle DB).

If you Oracle DB is in a private network, then you need proxy server or SSH tunnel (or something similar) to connect to the instance.

Overall, there is no limitation on EC2 side.