EC2 Security Groups
— EC2, Security Groups — 1 min read
Security Groups
- Virtual Firewall
- Changes take effect immediately
- Security Groups are Stateful
- Network Access Control Lists (NACL) are Stateless
- Cannot block ports with Security Groups (All inbound traffic is blocked by default)
- Can block ports with NACL
- You can specify allow rules, but not deny rules
- Can add multiple instances per one Security Group
- Can add multiple Security Groups per one instance