iam user and security

How to create and configure AWS IAM role ?

    How to create and configure AWS IAM role ? What is IAM role? An IAM role is an IAM entity that defines a set of permissions for making AWS service requests. IAM roles are not associated with a specific user or group. Instead, trusted entities assume roles, such as IAM users, applications, or AWS services such as EC2.…

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EC2

Error: Server refused our key or No supported authentication methods available

    Error: Server refused our key or No supported authentication methods available When try to connect AWS EC2 Linux instance sometimes you may come across this error. Server refused our key or Error: No supported authentication methods available Most of the time reason could be incorrect AMI user name. below are the default user names for different flavor Linux. Try to…

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AWS Network, Compute

Configure multiple AWS EC2 Elastic Network Interface ENI in Linux

    Configure multiple AWS EC2 Elastic Network Interface ENI in Linux AWS EC2 instance by-default will have one ENI with private / public IP address .In some cases need 2 or more separate IP address for high availability solutions, multiple web deployments or to separate the management ,administration and public traffic .In AWS we can create additional ENI NIC…

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EC2

Status Check Failed (Instance)" aws ec2

    Status Check Failed (Instance)” aws ec2 Normally Instance Status Check’ verifies that your instance’s operating system is accepting traffic. When it fails it means that the operating system inside the instance is not responding to traffic, for example this can happen when a Windows instance hangs or when a Linux instance kernel panics or network is disabled inside the…

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Compute, EC2

EC2 Failing instance status checks

    EC2 Failing instance status checks I hope most of the administrators may come across this issue in AWS ” EC2 Failing instance status checks” . Why this issue occurring ? Yes , there could be multiple reason for each operating system . But one of the frequent reason would be Operating System fail to boot. Remeber you are just…

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EC2

Unable to ssh/ping to my aws ec2 instance 

Everyone come across  this issue in day to day job.There could be multiple reason for this issue .”Unable to ssh/ping to my ec2 instance ” .First you need to look out what kind of error message you are getting . If you read the error message carefully we can shortout easily . Otherwise we have to check all the possible…

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RDS

MySQL/Amazon RDS error: “you do not have SUPER privilege”

  MySQL/Amazon RDS error: “you do not have SUPER privilege” Access denied; you need the SUPER privilege for this operation you do not have SUPER privilege This error normally will occur when try to import or restore mysql database into Amazon rds. The error clearly shows you do not have SUPER user privileges . Yes thats true , becuase Amazon…

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AWS Storage, Compute, EC2

What is EBS optimized instance in AWS? 

What is EBS optimized  instance in AWS?    Normally not all the instances EBS optimized instance type in AWS. Only specific ec2 instance types are EBS optimized. This will trigger another question ,how EBS disks are connecting with ec2? Through ec2 instance network cards only. So your network traffic and EBS data traffic will use same NIC card. But the…

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AWS Network

Description field in security group – AWS New feature

    Description field in security group – AWS New feature Finally the most awaited feature has been added ! Yes its really difficult to understand and track in security group which ip belongs to which network and what purpose. In large scale environment really hard to manage when someone comes to new to the environment. You can add Description…

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Application servicecs, Compute

What is elastic beanstalk in AWS

  What is elastic beanstalk in AWS Elastic Beanstalk is the fastest and simplest way to deploy your application on AWS. AWS Elastic Beanstalk makes it  easier for developers to quickly deploy and manage applications in the AWS Cloud.  Developers simply upload their application, and Elastic Beanstalk automatically handles the deployment details of capacity provisioning, load balancing, auto-scaling, and application…

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Database, RDS

What is rds parameter group in AWS? 

    What is rds parameter group in AWS?  *You can manage your DB engine configuration through the use of parameters in a DB parameter group. *DB parameter groups act as a container for engine configuration values that are applied to one or more DB instances. *A default DB parameter group is created if you create a DB instance without specifying a…

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RDS

What is rds db subnet group in AWS? 

    What is rds db subnet group in AWS?  A DB subnet group is a collection of subnets (typically private) that you create in a VPC  DB instances will reside in the selected subnet group. A DB subnet group allows you to specify a particular VPC when creating DB instances. Each DB subnet group should have subnets in at…

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EC2

Launching a new EC2 instance. Status Reason: Your quota allows for 0 more running instance(s). You requested at least 1. Launching EC2 instance failed

    Launching a new EC2 instance. Status Reason: Your quota allows for 0 more running instance(s). You requested at least 1. Launching EC2 instance failed This error may comes while instance launching manually or through auto scale as well . The reason is you reached on-demand running instance limit on that specific region . You need to increase the…

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