User guide

You can get the dig utility as part of the BIND software download. For more information on BIND, go to
BIND in the Internet Systems Consortium documentation.
Supported Platforms to Launch Your Cluster
Amazon Redshift clusters run in Amazon Elastic Compute Cloud (Amazon EC2) instances that are
configured for the Amazon Redshift node type and size that you select.You can launch an Amazon
Redshift cluster in one of two platforms: EC2-Classic or EC2-VPC, which are the supported platforms for
Amazon EC2 instances. For more information about these platforms, go to Supported Platforms in the
Amazon EC2 User Guide for Linux Instances.The platform or platforms available to you depend on your
AWS account settings.
Note
To prevent connection issues between SQL client tools and the Amazon Redshift database, we
recommend disabling TCP/IP jumbo frames by setting the maximum transmission unit (MTU)
to 1500 on the network interface (NIC) of your Amazon EC2 instances. For more information
about setting the MTU, see Queries Appear to Hang in the Client and Do Not Reach the
Cluster (p. 176).
EC2-Classic Platform
In the EC2-Classic platform, your cluster runs in a single, flat network that you share with other AWS
customers. If you provision your cluster in the EC2-Classic platform, you control access to your cluster
by associating one or more Amazon Redshift cluster security groups with the cluster. For more information,
see Amazon Redshift Cluster Security Groups (p. 43).
EC2-VPC Platform
In the EC2-VPC platform, your cluster runs in a virtual private cloud (VPC) that is logically isolated to your
AWS account. If provision your cluster in the EC2-VPC platform, you control access to your cluster by
associating one or more VPC security groups with the cluster. For more information, go to Security Groups
for Your VPC in the Amazon VPC User Guide.
To create a cluster in a VPC, you must first create an Amazon Redshift cluster subnet group by providing
subnet information of your VPC, and then provide the subnet group when launching the cluster. For more
information, see Amazon Redshift Cluster Subnet Groups (p. 36).
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Amazon Redshift Management Guide
Supported Platforms to Launch Your Cluster