DEV Community: Waris Khan

🚀 AWS Journey - Day 9

Waris Khan — Sat, 01 Aug 2026 03:22:20 +0000

Today, I continued my AWS Cloud learning journey by exploring one of the most important topics in cloud networking: Amazon Virtual Private Cloud (VPC).

📚 Topics Covered
✅ Amazon VPC

Learned how to create a Virtual Private Cloud (VPC), which provides a private and isolated network inside AWS where cloud resources such as EC2 instances can be securely deployed.

✅ Subnets

Created both Public and Private Subnets to understand how AWS separates internet-facing resources from internal resources for better security and architecture.

✅ Internet Gateway (IGW)

Configured an Internet Gateway and attached it to the VPC, allowing resources in public subnets to communicate with the internet.

✅ Route Tables

Learned how Route Tables control network traffic by defining routes for public and private subnets. Configured routes to direct internet-bound traffic through the Internet Gateway.

✅ VPC Peering

Explored VPC Peering, which enables two separate VPCs to communicate privately using AWS's internal network without traversing the public internet.

✅ NAT Gateway

Configured a NAT Gateway to allow instances in private subnets to access the internet for software updates and package downloads while remaining inaccessible from the internet.

✅ Network ACL (Access Control List)

Learned how Network ACLs provide subnet-level security by allowing or denying inbound and outbound traffic based on customizable rules.

🎯 Key Takeaways
Built a secure and scalable AWS network architecture.
Understood the difference between Public and Private Subnets.
Learned how Internet Gateway and NAT Gateway manage internet connectivity.
Configured Route Tables for proper traffic flow.
Connected multiple VPCs using VPC Peering.
Strengthened network security with Network ACLs.

Every networking concept in AWS builds the foundation for designing secure, highly available, and production-ready cloud environments.

☁️ AWS Journey – Day 8 🚀

Waris Khan — Fri, 24 Jul 2026 03:14:27 +0000

Today was all about mastering Amazon EBS, Snapshots, and EFS through both theory and hands-on labs. 🔐💾

📚 Topics I Studied

What is a Snapshot
What is Amazon EBS (Elastic Block Store)
What is Lifecycle Manager
What is Amazon EFS (Elastic File System)

🛠️ Practical Labs Completed
✅ Launched an EC2 instance and attached an EBS volume
✅ Created an EBS snapshot, deleted the volume, and restored it from the snapshot backup
✅ Created multiple snapshots across different Availability Zones
✅ Created an encrypted EBS volume from a snapshot
✅ Performed a regional snapshot copy
✅ Explored and configured Fast Snapshot Restore
✅ Configured Amazon Data Lifecycle Manager (DLM) for snapshot automation
✅ Created a dedicated EC2 security group allowing only SSH (22) and HTTP (80)
✅ Created a dedicated EFS security group allowing access only from the EC2 security group
✅ Deployed two EC2 instances in different Availability Zones and connected them to the same EFS file system

💡 Key Learning
Snapshots provide reliable backups for EBS volumes, while EFS enables shared, scalable storage across multiple EC2 instances and Availability Zones. Proper security group design is essential for secure communication between EC2 and EFS.

Every day of this journey is strengthening my understanding of AWS architecture, storage, backup strategies, and security best practices. 🌩️🔒

🚀 AWS Journey - Day 6 & Day 7 ☁️

Waris Khan — Wed, 15 Jul 2026 11:18:06 +0000

Another productive step in my AWS learning journey! This week, I focused on understanding AWS pricing models, storage services, and hands-on EC2 storage management.

📚 Theory Covered

💰 AWS Pricing

Understanding the AWS pay-as-you-go pricing model
Cost optimization fundamentals

🧮 AWS Pricing Calculator

What it is
How to estimate cloud infrastructure costs before deployment

🖥️ EC2 Purchasing Options

⚡ Spot Instances
📌 Reserved Instances
⏰ Scheduled Instances

🌐 Elastic IP Address (EIP)

What an Elastic IP is
Why static public IPs are important
Common use cases for Elastic IPs

💾 AWS Storage Services

Direct Attached Storage (DAS / Instance Store)
Block Storage (Amazon EBS)
File Storage
- Amazon EFS
- Amazon FSx
Object Storage
- Amazon S3

🔹 Deep Dive into Storage

Instance Store
Block Storage
Amazon EBS Storage Types
Understanding IOPS (Input/Output Operations Per Second) and Throughput

🛠️ Practical Labs Completed

✅ Created an Elastic IP Address and attached it to an EC2 instance.

✅ Created an Amazon EBS Volume, attached it to an EC2 instance, and explored its configuration.

✅ Reviewed and compared Spot, Reserved, and Scheduled EC2 instance purchasing options.

Every lab helps me understand how AWS services work in real-world cloud environments. Looking forward to diving deeper into networking, security, and advanced AWS architecture! 🚀

🚀 AWS Journey Day - 5☁️

Waris Khan — Mon, 13 Jul 2026 09:16:57 +0000

Another productive day of learning and hands-on practice! 💪 Today, I focused on AWS networking, EC2 security, and instance management while completing multiple practical labs.

📚 Theory Covered
🔹 What are AWS Placement Groups?
🔹 Understanding AWS EC2 Tenancy
🔹 AWS Security Groups Explained
🔹 Stateful vs. Stateless Firewalls

🛠️ Hands-on Practical Labs
✅ Created a Public EC2 Instance
✅ Created a Private EC2 Instance
✅ Configured a Bastion Host to securely access the Private EC2 Instance
✅ Created and Configured a New Security Group
✅ Allowed only the required inbound and outbound ports
✅ Enabled and Disabled EC2 Instance Protection Features:
🔸 Stop Protection
🔸 Termination Protection

🎯 Key Takeaways
💡 Learned how AWS Security Groups protect EC2 instances.
💡 Understood the differences between Stateful and Stateless firewalls.
💡 Practiced secure administration of private EC2 instances through a Bastion Host.
💡 Gained hands-on experience configuring Security Groups and EC2 protection settings.
💡 Continued building a strong foundation in AWS architecture and cloud security.

Every lab and every concept brings me one step closer to becoming an AWS Solutions Architect with a strong focus on Cloud Security. 🌍☁️🔐
I'm committed to learning, practicing, and sharing my journey every day. 🚀

🚀 AWS Journey – Day 4 ☁️

Waris Khan — Mon, 13 Jul 2026 01:15:04 +0000

Another productive day of learning and hands-on practice in AWS! Today, I focused on core networking and EC2 concepts that are essential for designing secure and scalable cloud infrastructures.

📚 Topics I Covered:
🔐 Understanding AWS Security Groups and how they act as virtual firewalls.
🌐 Learning the difference between Public IP Addresses and Private IP Addresses.
💽 Exploring Amazon Machine Images (AMI) and how they simplify EC2 deployments.

🛠️ Hands-on Labs Completed:
✅ Created a Public EC2 Instance
✅ Created a Private EC2 Instance
✅ Successfully accessed the Private EC2 Instance through the Public (Bastion Host) Instance using SSH
💡 Key Takeaways:
🔹 Security Groups control inbound and outbound traffic at the instance level.
🔹 Public IPs allow internet access, while Private IPs enable secure communication within a VPC.
🔹 AMIs make it easy to launch pre-configured EC2 instances with the required operating system and software.
🔹 Using a Bastion Host is a secure and widely adopted approach for accessing private resources without exposing them directly to the internet.

AWS Journey – Day 3 🚀

Waris Khan — Sat, 11 Jul 2026 07:48:09 +0000

Another productive day of learning and hands-on practice! Today, I focused on understanding the core AWS Global Infrastructure and launched my first EC2 instances.

📚 Topics Covered:
🌍 AWS Regions
🏢 Availability Zones (AZs)
📍 AWS Local Zones
⚡ AWS Edge Locations
🌐 AWS Regional Edge Caches
🖥️ AWS Outposts
📡 AWS Wavelength
💻 Amazon EC2 (Elastic Compute Cloud)

🛠️ Hands-on Labs Completed:
✅ Created a Windows EC2 Instance
✅ Created a Linux EC2 Instance
✅ Connected to and explored both instances

Every concept is becoming clearer through practical implementation. Building a strong foundation in AWS infrastructure is an essential step toward becoming a certified AWS Solutions Architect.

Looking forward to learning more and sharing my progress throughout this journey! 💪☁️

📚 AWS Cloud Learning Journey - Day 2

Waris Khan — Fri, 10 Jul 2026 15:32:59 +0000

Today, I explored the fundamentals of Amazon Web Services (AWS) and learned the following topics:

AWS & AWS Services
Learned what AWS is and explored core cloud services such as EC2 (virtual servers), S3 (cloud storage), and other essential AWS services.

AWS Free Tier Account
Understood what the AWS Free Tier is, its benefits for beginners, and how to create an AWS account.

AWS Budgets & Budget Alerts – Learned how to set spending limits and configure budget alerts to monitor cloud costs and avoid unexpected charges.

AWS Management Console
Explored the web-based dashboard used to access, manage, and configure AWS services.

AWS GUI Console vs CLI
Understood the difference between managing AWS through the Graphical User Interface (GUI) and the Command Line Interface (CLI).

🚀 Every day is another step toward strengthening my cloud computing skills.

AWS Cloud Journey Day - 1

Waris Khan — Thu, 09 Jul 2026 08:00:58 +0000

☁️ AWS Cloud Journey

Today, I strengthened my understanding of the core concepts of cloud computing and AWS fundamentals.

📚 Topics Covered:

On-Premises Infrastructure Learned how organizations manage and maintain their own physical servers, storage, and networking.

Cloud Computing Fundamentals – Explored the concept of delivering computing resources over the internet.
Types of Cloud Computing – Understood the differences between Public Cloud, Private Cloud, and Hybrid Cloud deployment models.
Cloud Service Models (IaaS, PaaS & SaaS) – Learned how each model provides different levels of infrastructure, platforms, and software services.
Advantages of Cloud Computing – Studied key benefits such as scalability, cost optimization, high availability, flexibility, and global accessibility.
AWS Cloud Fundamentals – Built a solid foundation for learning Amazon Web Services and modern cloud technologies.