RHEL on AWS ec2 missing the following packages

sudo yum install httpd24 php56 mysql55-server php56-mysqlnd
Loaded plugins: amazon-id, rhui-lb, search-disabled-repos
No package httpd24 available.
No package php56 available.
No package mysql55-server available.
No package php56-mysqlnd available.
Error: Nothing to do

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not authorized to perform: route53:ChangeResourceRecordSets on resource:

{ [AccessDenied: User: arn:aws:iam::902816437957:user/SrinivasNidadavolu is not authorized to perform: route53:ChangeResourceRecordSets on resource: arn:aws:route53:::hostedzone/Z4MNS19SVTW6HWE]
  message: 'User: arn:aws:iam::902816437957:user/SrinivasNidadavolu is not authorized to perform: route53:ChangeResourceRecordSets on resource: arn:aws:route53:::hostedzone/Z4MNS19SVTW6HWE',
  code: 'AccessDenied',
  time: Sun Apr 09 2017 14:54:04 GMT+0800 (Malay Peninsula Standard Time),
  requestId: '320f74e1-1cf1-11e7-b82f-d7cbe814b865',
  statusCode: 403,
  retryable: false,
  retryDelay: 49.57547772210091 }


Solution :

Go to IAM in AWS Console
IAM Resources    - Users: 1

steps:
1.click on the user

2. add Add inline policy

      Policy Generator - Select

You need to add inline policy to the user

1.Select Route 53,
2. ChangeResourceRecords
3. ARN is  arn:aws:route53:::hostedzone/M148QEXAMPUE9J    - us your hostzone

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Instance does not have a volume attached at root (/dev/sda1)

Error starting instances

Invalid value 'i-07a7ac5708cbb15' for instanceId. Instance does not have a volume attached at root (/dev/sda1)

Solution:

Whenever you attach the Volume, set parameter :

Device: /dev/sda1

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Different Domains in AWS

Compute
Storage
Database
Migration
Networking and content delivery
Management tools
Security and Identity, Compliance,
Messaging


Services under Compute domain:

 

  Services under Storage domain:

Services under Database

Services under Migration :

Services under Network & Content Delivery

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Benefits of AWS

1. Servers are very expensive. Using AWS , total cost of ownership is lower than the private servers.
You rent servers instead of buying.

2. Highly scalable ( You can increase the configurations on the go. You pay as you use)

3. Highly Reliable

4. Centralized management and billing.

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DryRunOperation: Request would have succeeded, but DryRun flag is set

{ [DryRunOperation: Request would have succeeded, but DryRun flag is set.]
  message: 'Request would have succeeded, but DryRun flag is set.',
  code: 'DryRunOperation',
  time: Sun Mar 26),
  requestId: 'xxxxxxxxxxxxxxxxx-xxxxxxxxxxxxxxxxxxx',
  statusCode: 412,
  retryable: false,
  retryDelay: 12.43 } 'DryRunOperation: Request would have succeeded, but DryRun flag is set.\n    at Request.extractError (

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Address Not Allocated { [UnknownEndpoint: Inaccessible host

Tagging instance failure
Address Not Allocated { [UnknownEndpoint: Inaccessible host: `ec2.ap-southeast-1.amazonaws.com'. This service may not be available in the `ap-southeast-1' region.]
  message: 'Inaccessible host: `ec2.ap-southeast-1.amazonaws.com\'. This service may not be available in the `ap-southeast-1\' region.',
  code: 'UnknownEndpoint',
  region: 'ap-southeast-1',
  hostname: 'ec2.ap-southeast-1.amazonaws.com',
  retryable: true,
  originalError:
   { [NetworkingError: getaddrinfo ENOTFOUND ec2.ap-southeast-1.amazonaws.com ec2.ap-southeast-1.amazonaws.com:443]
     message: 'getaddrinfo ENOTFOUND ec2.ap-southeast-1.amazonaws.com ec2.ap-southeast-1.amazonaws.com:443',
     code: 'NetworkingError',
     errno: 'ENOTFOUND',
     syscall: 'getaddrinfo',
     hostname: 'ec2.ap-southeast-1.amazonaws.com',
     host: 'ec2.ap-southeast-1.amazonaws.com',
     port: 443,
     region: 'ap-southeast-1',
     retryable: true,

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