This is not part of the course, but noted from my own experience
Important INBOUND Rules
| Type | Protocol | Port Range | Source | Rule | Note |
|---|---|---|---|---|---|
| All Traffic | ALL | ALL | 10.0.0.0/16 | Allow | Accept all communications from any resource on the VPC |
| All ICMP | ICMP | ALL | 0.0.0.0/0 | Allow | Ping |
| SSH | TCP | 22 | 0.0.0.0/0 | Allow | SSH Access |
| HTTP | TCP | 80 | 0.0.0.0/0 | Allow | Web Traffic |
| Custom TCP | TCP | 32768-65535 | 0.0.0.0/0 | Allow | Allow incoming traffic for yum, curl, aws, etc. (Ephemeral Ports) |
Important OUTBOUND Rules
| Type | Protocol | Port Range | Source | Rule | Note |
|---|---|---|---|---|---|
| All Traffic | ALL | ALL | 10.0.0.0/16 | Allow | Permit all communications to any resource on the VPC |
| All ICMP | ICMP | ALL | 0.0.0.0/0 | Allow | Ping |
| HTTP | TCP | 80 | 0.0.0.0/0 | Allow | curl |
| HTTPS | TCP | 443 | 0.0.0.0/0 | Allow | yum, aws |
| Custom TCP | TCP | 32768-65535 | 0.0.0.0/0 | Allow | Allow outgoing traffic for all allowed incoming ports (Ephemeral Ports) |