AWS Snowball User Guide
soft bounce A temporary email delivery failure such as one resulting from a full mailbox.
software VPN A software appliance-based VPN connection over the internet.
sort enabled Amazon CloudSearch (p. 110): An index field option that enables a field to be
used to sort the search results.
sort key An attribute used to sort the order of partition keys in a composite primary key
(also known as a range attribute).
See Also partition key, primary key.
source/destination checking A security measure to verify that an EC2 instance (p. 129) is the origin of all
traffic that it sends and the ultimate destination of all traffic that it receives; that
is, that the instance is not relaying traffic. Source/destination checking is enabled
by default. For instances that function as gateways, such as VPC (p. 159)
NAT (p. 141) instances, source/destination checking must be disabled.
spam Unsolicited bulk email.
spamtrap An email address that is set up by an anti-spam (p. 153) entity, not for
correspondence, but to monitor unsolicited email. This is also called a honeypot.
SPF Sender Policy Framework. A standard for authenticating email.
See Also http://www.openspf.org.
Spot Instance A type of EC2 instance (p. 129) that you can bid on to take advantage of unused
Amazon EC2 (p. 111) capacity.
Spot price The price for a Spot Instance (p. 153) at any given time. If your maximum price
exceeds the current price and your restrictions are met, Amazon EC2 (p. 111)
launches instances on your behalf.
SQL injection match condition AWS WAF (p. 121): An attribute that specifies the part of web requests, such
as a header or a query string, that AWS WAF inspects for malicious SQL code.
Based on the specified conditions, you can configure AWS WAF to allow or block
web requests to AWS resource (p. 148)s such as Amazon CloudFront (p. 110)
distributions.
SQS See Amazon Simple Queue Service (Amazon SQS).
SSE See server-side encryption (SSE).
SSL Secure Sockets Layer
See Also Transport Layer Security.
SSO See AWS Single Sign-On.
stack AWS CloudFormation (p. 116): A collection of AWS resource (p. 148)s that you
create and delete as a single unit.
AWS OpsWorks (p. 119): A set of instances that you manage collectively,
typically because they have a common purpose such as serving PHP applications.
A stack serves as a container and handles tasks that apply to the group of
instances as a whole, such as managing applications and cookbooks.
station AWS CodePipeline (p. 117): A portion of a pipeline workflow where one or more
actions are performed.
station A place at an AWS facility where your AWS Import/Export data is transferred on
to, or off of, your storage device.
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