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3. DHCP Process : DORA

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1. STP PVST EtherChannel HSRP

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2. Https Ssl/tls

What is HTTPS? HTTPS stands for HTTP + SSL/TLS, a protocol that encrypts data to enhance security. It ensures secure data transmission between the client and the server. In plain HTTP, a third party can intercept the data exchanged between the clie...

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[Bedrock Lambda API Gateway]Trouble Shooting When Using AWS Bedrock, Lambda, and API Gateway

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Mail service memo

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AWS IAM: Identity-Based vs Resource-Based Policies and Conflict Resolution

1. Identity-Based Policy Definition: Attached to users, groups, or roles. Purpose: Defines what actions the entity can perform on specific resources. Example: Allow MarketingTeam IAM group to perform rds:DescribeDBInstances. Key Point: Specifies ...

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Troubleshooting Subnet CIDR Issues for Load Balancer Setup on AWS

Problem Overview Public Subnet CIDR Setup: Initial Setup: Public subnet CIDR block set to /28. /28 CIDR Block: Provides 16 IP addresses, but fewer are available due to reserved IPs. 5 Reserved IP Addresses in Subnet: Network address: First IP ad...

Jul 30, 20242 min read

[EKS] Setting Up an EKS Cluster and ALB Integration on AWS

K8S ARCITECTURE 1. EKS Cluster Setup 1.1 Install eksctl Windows (Powershell): choco install -y eksctl eksctl version # Verify installation Linux: curl --silent --location "https://github.com/weaveworks/eksctl/releases/latest/download/eksctl_$(...

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[ VPC ]Setting Up a VPC on AWS

Project Architecture 1. VPC Setup 1.1 Create VPC CIDR Block: 10.10.0.0/16 Command: vpc_id=$(aws ec2 create-vpc --cidr-block 10.10.0.0/16 --query 'Vpc.VpcId' --output text) echo "VPC ID: $vpc_id" 1.2 Internet Gateway Configuration Purpose: ...

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[Network Policies Resource Quotas HPA] in an EKS Cluster

K8S ARCHITECTURE Defining Network Policies 1. ArgoCD Network Policy Purpose: Restrict traffic within the ArgoCD namespace and allow external traffic from a specific CIDR block. apiVersion: networking.k8s.io/v1 kind: NetworkPolicy metadata: name:...

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Google Sign-In with Amazon Cognito and Next.js

1. Setting Up Amazon Cognito User Pool Cognito Console: Go to Amazon Cognito Console, select Create user pool. Configure Sign-In Experience: Select Federated identity providers. Choose Email as the minimum sign-in option. Under Federated sign-...

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