15 Amazon EMR Management Guide Step 3 Allow SSH Access Console field Default

15 amazon emr management guide step 3 allow ssh

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Amazon EMR Management Guide Step 3: Allow SSH Access Console field Default value Description EC2 key pair Choose an option This specifies the Amazon EC2 key pair to use when connecting to the nodes in your cluster over a Secure Shell (SSH) connection. We strongly recommend that you create and specify an Amazon EC2 key pair. If you do not select a key pair, you cannot connect to the cluster to submit steps or interact with applications. For more information, see Connect to the Cluster (p. 313) . To connect, you also need to create an inbound rule in the security group to allow SSH connections. Permissions Default Use this option to specify the AWS Identity and Access Management roles that the cluster uses. These roles determine the permissions that Amazon EMR and the applications running on cluster instances have to interact with other AWS services. You can choose Custom to specify your own roles. We recommend using the default roles to start with. For more information, see Configure IAM Service Roles for Amazon EMR Permissions to AWS Services and Resources (p. 177) . Step 3: Allow SSH Connections to the Cluster From Your Client Security groups act as virtual firewalls to control inbound and outbound traffic to your cluster. When you create your first cluster, Amazon EMR creates the default Amazon EMR-managed security group associated with the master instance, ElasticMapReduce-master , and the security group associated with core and task nodes, ElasticMapReduce-slave . Warning The default EMR-managed security group for the master instance in public subnets, ElasticMapReduce-master , is pre-configured with a rule that allows inbound traffic on Port 22 from all sources (IPv4 0.0.0.0/0). This is to simplify initial SSH client connections to the master node. We strongly recommend that you edit this inbound rule to restrict traffic only from trusted sources or specify a custom security group that restricts access. Modifying security groups isn't a requirement to complete the tutorial, but we recommend that you do not allow inbound traffic from all sources. In addition, if another user edited the ElasticMapReduce- master security group to eliminate this rule per the recommendations, you are not able to access the 16
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Amazon EMR Management Guide Step 3: Allow SSH Access cluster using SSH for next steps. For more information about security groups, see Control Network Traffic with Security Groups (p. 258) and Security Groups for Your VPC in the Amazon VPC User Guide . To remove the inbound rule that allows public access using SSH for the ElasticMapReduce- master security group The following procedure assumes that the ElasticMapReduce-master security group has not been edited previously. In addition, to edit security groups, you must be logged in to AWS as a root user or as an IAM principal that is allowed to manage security groups for the VPC that the cluster is in. For more information, see Changing Permissions for an IAM User and the Example Policy that allows managing EC2 security groups in the IAM User Guide .
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  • Spring '12
  • LauraParker
  • Amazon Web Services, Amazon Elastic Compute Cloud

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