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Older notes, lessons, and series entries from the growing technical library.

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2 min readSeries: AWS from Zero · Part 30

Enforce bucket owner ownership in S3

Set S3 Object Ownership to BucketOwnerEnforced and confirm ACLs are disabled.

#aws#cli#s3#storage#security
2 min readSeries: AWS from Zero · Part 29

Read each S3 public access block setting

Inspect and explain the four independent S3 Block Public Access values.

#aws#cli#s3#storage#security
2 min readSeries: AWS from Zero · Part 28

Block all public access on an S3 bucket

Enable all four S3 Block Public Access controls from the AWS CLI.

#aws#cli#s3#storage#security
2 min readSeries: AWS from Zero · Part 27

Inspect S3 bucket encryption deeply

Query an S3 bucket encryption configuration and distinguish SSE-S3 from SSE-KMS.

#aws#cli#s3#storage
2 min readSeries: AWS from Zero · Part 26

Set S3 default encryption with AWS KMS

Configure default SSE-KMS encryption with the AWS managed S3 key and verify the bucket setting.

#aws#cli#s3#storage#security#kms
2 min readSeries: AWS from Zero · Part 25

Set S3 default encryption with SSE-S3

Explicitly configure SSE-S3 default bucket encryption and verify encryption on a new object.

#aws#cli#s3#storage#security
2 min readSeries: AWS from Zero · Part 24

Restore an older S3 object version

Restore an older S3 object version by copying it over the same key as the new current version.

#aws#cli#s3#storage#versioning
2 min readSeries: AWS from Zero · Part 23

Understand S3 delete markers through CLI

Create, inspect, and remove an S3 delete marker to understand deletion in a versioned bucket.

#aws#cli#s3#storage#versioning
2 min readSeries: AWS from Zero · Part 22

Enable S3 Versioning from zero

Enable S3 Versioning, upload two versions of one object, and inspect their version IDs.

#aws#cli#s3#storage#versioning
2 min readSeries: AWS from Zero · Part 21

Delete many S3 objects safely

Delete a controlled list of S3 object keys in one request and inspect the result.

#aws#cli#s3#storage
2 min readSeries: AWS from Zero · Part 20

Delete one S3 object safely

Inspect, optionally back up, delete, and verify one S3 object from the command line.

#aws#cli#s3#storage
2 min readSeries: AWS from Zero · Part 19

Use include and exclude rules with S3 sync

Preview and run an S3 sync that uploads only matching files with include and exclude filters.

#aws#cli#s3#storage
2 min readSeries: AWS from Zero · Part 18

Copy S3 objects across buckets

Copy an object from one S3 bucket to another and verify the destination with AWS CLI.

#aws#cli#s3#storage
2 min readSeries: AWS from Zero · Part 17

Copy S3 objects inside one bucket

Copy an S3 object to a new key in the same bucket, then compare the source and destination.

#aws#cli#s3#storage
2 min readSeries: AWS from Zero · Part 16

List S3 buckets with s3api

List the S3 buckets in your AWS account and shape the result with AWS CLI queries.

#aws#cli#s3#storage
2 min readSeries: AWS from Zero · Part 15

Inspect an S3 object with head-object

Use head-object to check S3 object size, type, metadata, and last modified time without downloading the object.

#aws#cli#s3#storage
2 min readSeries: AWS from Zero · Part 14

Upload an S3 object with metadata

Use AWS CLI to upload an S3 object with custom metadata, then inspect it without downloading the file.

#aws#cli#s3#storage
2 min readSeries: AWS from Zero · Part 13

S3 CLI vs S3 API commands

Understand when to use high-level aws s3 commands and when to use lower-level aws s3api commands.

#aws#cli#s3#storage
2 min readSeries: AWS from Zero · Part 12

S3 create-bucket: us-east-1 vs other regions

Understand why S3 bucket creation looks different in us-east-1 compared with other AWS regions.

#aws#cli#s3#storage
2 min readSeries: AWS from Zero · Part 11

S3 bucket naming rules from the CLI

Learn the bucket naming rules that matter before you run create-bucket, and test names safely from the command line.

#aws#cli#s3#storage
3 min readSeries: AWS from Zero · Part 10

Automation and the long AWS roadmap

Turn one-off AWS CLI commands into repeatable scripts, JSON inputs, CloudFormation steps, and a service-by-service roadmap.

#aws#automation#cloudformation#cli
2 min readSeries: AWS from Zero · Part 9

VPC from Zero: networking pieces by command

Build the mental model of VPCs, subnets, routes, internet gateways, and security groups before adding bigger services.

#aws#vpc#networking#cli
2 min readSeries: AWS from Zero · Part 8

EC2 from Zero: launch your first instance

Create a key pair and security group, find an AMI, launch an EC2 instance, SSH into it, and terminate it safely.

#aws#ec2#linux#cli
2 min readSeries: AWS from Zero · Part 7

Host a static website on S3 using only CLI

Turn an S3 bucket into a tiny static website with bucket website configuration, public-read policy, upload, test, and cleanup.

#aws#s3#web#cli
2 min readSeries: AWS from Zero · Part 6

S3 from Zero: buckets, objects, and sync

Create an S3 bucket, upload and download objects, use sync, then delete everything with CLI-only commands.

#aws#s3#storage#cli
3 min readSeries: AWS from Zero · Part 5

AWS safety habits: cost, regions, and cleanup

Build the boring habits that save money: check your region, tag resources, list what exists, and clean up every lesson.

#aws#billing#cloud#cli
3 min readSeries: AWS from Zero · Part 4

IAM from Zero: identity before infrastructure

Understand IAM users, groups, roles, policies, and why every AWS CLI command starts with identity.

#aws#iam#security#cli
2 min readSeries: AWS from Zero · Part 3

Learn the AWS CLI command shape

Use help pages, JSON output, filters, and JMESPath queries so AWS CLI starts feeling predictable.

#aws#cloud#devops#cli
3 min readSeries: AWS from Zero · Part 2

Install AWS CLI and configure your first profile

Set up AWS CLI, create a named profile, choose a region, and verify exactly which AWS identity your terminal is using.

#aws#cloud#devops#cli
3 min readSeries: AWS from Zero · Part 1

AWS from Zero: the CLI-only map

A practical roadmap for learning AWS without touching the console UI: tiny commands first, real systems later.

#aws#cloud#devops#cli