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EC2 with Elastic IP User talks to a public EC2 instances access by EIP We want to have a failover instance ElP address points to failover instances Su 阅读全文
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SAA Case 1 User can get Authed by using Cognito User need to access his own S3 folder, we can use Cognito to generate temp credentials by using STS, t 阅读全文
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S3 is not good at searching object We can use DynamoDB to save the metadata of S3 object Then do the search in DyanmoDB If you need to get data direct 阅读全文
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SAA API Gateway Security IAM Permission For user has aws account Authentication + authorization Sigure v4 Lambda Authorizer 3rd party tokens Authentic 阅读全文
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SAA CPU is linked to RAM (cannot be set manually) 2 vCPU are allocated after 1.5G of RAM are used... if you are enabling multi thread, you cannot leve 阅读全文
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SAA Overview For each container, there is ECS Agent attached to it. ECS Agent talk to ECS Service, ECR to pull image and send log to CloudWatch. There 阅读全文
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SAA Overview A: hostname to IPv4 AAAA: hostname to IPv6 CNAME: hostname to hostname Alias: hostname to AWS resouce Create a Record point to a IP that 阅读全文
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SAA Load Balancer LBs can scale but not instantaneously -- contact AWS for a "warm-up" 4xx errors are client induced errors 5xx errors are application 阅读全文
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SAA EC2 instance types Security Group SG can refer to another SG. EC2 You have more access to hareware Whole hardware for your EC2 Still share hardwar 阅读全文
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1) There's a connection timeout This is a security group issue. Any timeout (not just for SSH) is related to security groups or a firewall. Ensure you 阅读全文