What ports should I open in my EC2 security group?
It depends on the applications you are running. Commonly, you might need to open port 22 for SSH, port 80 for HTTP, and port 443 for HTTPS.
What if I need to run a database?
For databases, you typically need to open port 3306 for MySQL or port 5432 for PostgreSQL. Make sure to restrict access to trusted IPs.
How can I restrict access to specific IPs?
You can specify the allowed IP addresses in the inbound rules of your security group. Just enter the IP range in CIDR notation.
Is it safe to leave ports open?
It's best to only open the ports you need and restrict access to trusted sources to minimize security risks.
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