Type Protocol Port Range Source Details Inbound rules All ICMP IPv4 All NA All

Type protocol port range source details inbound rules

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EMR adds the same rules if you specify a custom managed security group. Type Protocol Port Range Source Details Inbound rules All ICMP- IPv4 All N/A All TCP TCP All All UDP UDP All The Group ID of the managed security group for the master instance. In other words, the same security group in which the rule appears. These reflexive rules allow inbound traffic from any instance associated with the specified security group. Using the default ElasticMapReduce-master for multiple clusters allows the core and task nodes of those clusters to communicate with each other over ICMP or any TCP or UDP port. Specify custom managed security groups to restrict cross-cluster access. All ICMP- IPV4 All N/A All TCP TCP All All UDP UDP All The Group ID of the managed security group specified for core and task nodes. These rules allow all inbound ICMP traffic and traffic over any TCP or UDP port from any core and task instances that are associated with the specified security group, even if the instances are in different clusters. Custom TCP 8443 Various Amazon IP address ranges These rules allow the cluster manager to communicate with the master node. SSH TCP 22 0.0.0.0/0 Allow inbound SSH connections from any source. Warning We strongly recommend that you edit this inbound rule to restrict traffic only from trusted sources. Alternatively, specify a custom EMR- managed security group to restrict access. For more information, see see the procedure to remove public access to SSH (p. 260) . 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 . 1. Open the Amazon EMR console at . 260
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Amazon EMR Management Guide Working With Amazon EMR-Managed Security Groups 2. Choose Clusters . 3. Choose the Name of the cluster. 4. Under Security and access choose the Security groups for Master link. 5. Choose ElasticMapReduce-master from the list. 6. Choose Inbound , Edit . 7. Find the rule with the following settings and choose the x icon to delete it: Type SSH Port 22 Source Custom 0.0.0.0/0 8. Scroll to the bottom of the list of rules and choose Add Rule . 9. For Type , select SSH . This automatically enters TCP for Protocol and 22 for Port Range . 10. For source, select My IP . This automatically adds the IP address of your client computer as the source address. Alternatively, you can add a range of Custom trusted client IP addresses and choose Add rule to create additional rules for other clients. In many network environments, IP addresses are allocated dynamically, so you may need to periodically edit security group rules to update the IP address of trusted clients.
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  • Spring '12
  • LauraParker
  • Amazon Web Services, Amazon Elastic Compute Cloud

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