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@@ -33,7 +33,7 @@ Subnets helps to enforce a greater level of security. **Logical grouping of simi
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- Valid CIDR are from a /16 netmask to a /28 netmask.
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- Valid CIDR are from a /16 netmask to a /28 netmask.
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- A subnet cannot be in different availability zones at the same time.
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- A subnet cannot be in different availability zones at the same time.
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- **AWS reserves the first three host IP addresses** of each subnet **for** **internal AWS usage**: he first host address used is for the VPC router. The second address is reserved for AWS DNS and the third address is reserved for future use.
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- **AWS reserves the first three host IP addresses** of each subnet **for** **internal AWS usage**: the first host address used is for the VPC router. The second address is reserved for AWS DNS and the third address is reserved for future use.
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- It's called **public subnets** to those that have **direct access to the Internet, whereas private subnets do not.**
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- It's called **public subnets** to those that have **direct access to the Internet, whereas private subnets do not.**
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### Route Tables
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### Route Tables
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@@ -157,7 +157,7 @@ aws s3api list-buckets
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# list content of bucket (no creds)
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# list content of bucket (no creds)
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aws s3 ls s3://bucket-name --no-sign-request
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aws s3 ls s3://bucket-name --no-sign-request
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aws s3 ls s3://bucket-name --recursive
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aws s3 ls s3://bucket-name --recursive --no-sign-request
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# list content of bucket (with creds)
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# list content of bucket (with creds)
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aws s3 ls s3://bucket-name
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aws s3 ls s3://bucket-name
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