VPC
stateless / add or remove rules/ inbound rules , by CIDR private ip public ipo cannot reuse and elastic ip can be reused to another instance create ec2 key pair 1. vpc--> your vpc--> create vpc-->vpc only--name vpc--> add ip 10.0.0.0/24 (ipv4) --create vpc is created. 2. vpc console--> network acls--> nacl01(nameit) select vpc(just createdone) -->crtea n/w acl. 3. vpc flow log feature is to capture ip traffic from (vpc) .. pubclished cloud watch/s3 and retrieve (diaglotics, security group stoping traffic, more inbound /or outbound) 4. flow log for sub net / vpc aws consule -- s3 console--giveabucketname--createbucket-->vpc console-->selectecrtedone-->createflow-->defaultoptions..>find arn of s3bckt --> internet gateway--> if ipv4 public address --> egress-only igway. is a scalable for ipv6 -- vpc--> canot talk to ec2 from internet. NAT-- pvt subnet--outside vpc--cannot initate connection to instances. private...