To describe snapshots

1. If you are using SOAP, construct the following request:

   <DescribeSnapshotAttribute xmlns="http://ec2.amazonaws.com/doc/2009-10-31/">
       <snapshotId>snapshot-id</snapshotId>
   </DescribeSnapshotAttribute>
   

2. If you are using Query, construct the following request:

   https://ec2.amazonaws.com/
   ?Action=DescribeSnapshotAttribute
   &SnapshotId=snapshot-id
   &...auth parameters...
   

3. View output similar to the following:

   <DescribeSnapshotAttributeResponse xmlns="http://ec2.amazonaws.com/doc/2009-10-31/">
     <snapshotId>snap-78a54011</snapshotId>
     <createVolumePermission/>
   </DescribeSnapshotAttributeResponse>

4. If you are using SOAP, construct the following request to make the snapshot public:

   <ModifySnapshotAttribute xmlns="http://ec2.amazonaws.com/doc/2009-10-31/">
       <snapshotId>snapshot-id</snapshotId>
       <createVolumePermission>
         <add>
           <item>
             <group>all</group>
           </item>
         </add>
       </createVolumePermission>
   </ModifySnapshotAttribute>
   

5. If you are using Query, construct the following request to make the snapshot public:

   https://ec2.amazonaws.com/
   ?Action=ModifySnapshotAttribute
   &SnapshotId.1=snapshot-id
   &Add.1=all
   &...auth parameters...
   

6. View output similar to the following:

   <ModifySnapshotAttributeResponse xmlns="http://ec2.amazonaws.com/doc/2009-10-31/">
     <return>true</return>
   </ModifySnapshotAttributeResponse>