Last Updated: November 21, 2025
AWS Services
Amazon Web Services essentials
Core Services
| Item | Description |
|---|---|
EC2
|
Virtual servers in the cloud |
S3
|
Object storage service |
RDS
|
Managed relational databases |
Lambda
|
Serverless compute |
DynamoDB
|
NoSQL database |
VPC
|
Virtual private cloud |
CloudFront
|
Content delivery network |
Route 53
|
DNS service |
AWS CLI Basics
aws configure
Configure credentials
aws s3 ls
List S3 buckets
aws s3 cp file.txt s3://bucket/
Upload to S3
aws ec2 describe-instances
List EC2 instances
aws lambda list-functions
List Lambda functions
Security & IAM
- IAM Users: Individual user accounts
- IAM Roles: Permissions for AWS services
- IAM Policies: JSON permission documents
- MFA: Multi-factor authentication
- Security Groups: Virtual firewalls
- KMS: Key Management Service
Cost Optimization
- Use Reserved Instances for predictable workloads
- Enable S3 Lifecycle policies
- Use Auto Scaling to match demand
- Monitor with CloudWatch
- Set up billing alerts
- Use Spot Instances for batch jobs
💡 Pro Tips
Quick Reference
Navigate AWS cloud services efficiently