Uploaded January 2025 | Updated September 2026, 1 week ago
In AWS, security groups act as a virtual firewall for subnets inside of your virtual private cloud (VPC). They offer an additional layer of security beyond security groups, which offer protection at the EC2 instance level.
In this video, I’ll walk you through the theory of NACLs, how NACL rules work, and we’ll work on two examples to apply what we’ve learned.
🌟 ***OTHER VIDEOS YOU MIGHT ENJOY*** 🌟
• Security Group Basics: youtu.be/uYDT2SsHImQ
• How IP Addressing Works in AWS | Public, Private, Elastic, CIDR Notation: youtu.be/kRDtwr1dPpw
• Amazon/AWS VPC (Virtual Private Cloud) Basics: youtu.be/7_NNlnH7sAg
🌟 ***MY AWS COURSES*** 🌟
If you’re interested in getting AWS certifications, check out these full courses. They include lots of hands-on demos, quizzes and full practice exams. Use FRIENDS10 for a 10% discount!
- AWS Certified Cloud Practitioner: academy.zerotomastery.io/a/aff_n20ghyn4/external?affcode=441520_lm7gzk-d
- AWS Certified Solutions Architect Associate: academy.zerotomastery.io/a/aff_464yrtnn/external?affcode=441520_lm7gzk-d
🌟 ***TIMESTAMPS*** 🌟
00:00 – What are network access control lists (NACLs) in AWS?
00:55 – Understanding NACL rules
01:40 – The Default NACL on a subnet in AWS
02:13 – Example: How to block HTTP traffic on Port 80?
03:32 – What are ephemeral ports in AWS?
05:32 – Additional details about NACLs in AWS
06:17 – Another example: How would you set up NACL rules in this case?
In AWS, security groups act as a virtual firewall for subnets inside of your virtual private cloud (VPC). They offer an additional layer of security beyond security groups, which offer protection at the EC2 instance level.
In this video, I’ll walk you through the theory of NACLs, how NACL rules work, and we’ll work on two examples to apply what we’ve learned.
🌟 ***OTHER VIDEOS YOU MIGHT ENJOY*** 🌟
• Security Group Basics: youtu.be/uYDT2SsHImQ
• How IP Addressing Works in AWS | Public, Private, Elastic, CIDR Notation: youtu.be/kRDtwr1dPpw
• Amazon/AWS VPC (Virtual Private Cloud) Basics: youtu.be/7_NNlnH7sAg
🌟 ***MY AWS COURSES*** 🌟
If you’re interested in getting AWS certifications, check out these full courses. They include lots of hands-on demos, quizzes and full practice exams. Use FRIENDS10 for a 10% discount!
- AWS Certified Cloud Practitioner: academy.zerotomastery.io/a/aff_n20ghyn4/external?affcode=441520_lm7gzk-d
- AWS Certified Solutions Architect Associate: academy.zerotomastery.io/a/aff_464yrtnn/external?affcode=441520_lm7gzk-d
🌟 ***TIMESTAMPS*** 🌟
00:00 – What are network access control lists (NACLs) in AWS?
00:55 – Understanding NACL rules
01:40 – The Default NACL on a subnet in AWS
02:13 – Example: How to block HTTP traffic on Port 80?
03:32 – What are ephemeral ports in AWS?
05:32 – Additional details about NACLs in AWS
06:17 – Another example: How would you set up NACL rules in this case?
