ModifyInstanceVncPasswd - Elastic Compute Service

Changes the VNC password of an Elastic Compute Service (ECS) instance.

Operation description

The password must be six characters in length and can contain only uppercase letters, lowercase letters, and digits.
After you modify the VNC password of an instance, take note of the following items:
- If the instance is I/O optimized, the new password takes effect immediately.
- If the instance is not I/O optimized, you must restart the instance by using the ECS console or by calling the RebootInstance operation for the new password to take effect.

Debugging

OpenAPI Explorer automatically calculates the signature value. For your convenience, we recommend that you call this operation in OpenAPI Explorer.

Debug

Authorization information

The following table shows the authorization information corresponding to the API. The authorization information can be used in the Action policy element to grant a RAM user or RAM role the permissions to call this API operation. Description:

Operation: the value that you can use in the Action element to specify the operation on a resource.
Access level: the access level of each operation. The levels are read, write, and list.
Resource type: the type of the resource on which you can authorize the RAM user or the RAM role to perform the operation. Take note of the following items:
- The required resource types are displayed in bold characters.
- If the permissions cannot be granted at the resource level, All Resources is used in the Resource type column of the operation.
Condition Key: the condition key that is defined by the cloud service.
Associated operation: other operations that the RAM user or the RAM role must have permissions to perform to complete the operation. To complete the operation, the RAM user or the RAM role must have the permissions to perform the associated operations.

Operation	Access level	Resource type	Condition key	Associated operation
ecs:ModifyInstanceVncPasswd	update	Instance acs:ecs:{#regionId}:{#accountId}:instance/{#instanceId}	none	none

Request parameters

Parameter	Type	Required	Description	Example
InstanceId	string	Yes	The ID of the instance.	i-bp67acfmxazb4ph****
RegionId	string	Yes	The region ID of the instance. You can call the DescribeRegions operation to query the most recent region list.	cn-hangzhou
VncPassword	string	Yes	The new VNC password of the instance.	Ecs123

Response parameters

Parameter	Type	Description	Example
	object
RequestId	string	The ID of the request.	473469C7-AA6F-4DC5-B3DB-A3DC0DE3C83E

Examples

Sample success responses

JSONformat

{
  "RequestId": "473469C7-AA6F-4DC5-B3DB-A3DC0DE3C83E"
}

Error codes

HTTP status code	Error code	Error message	Description
400	IncorrectVncPassword.Malformed	The specified parameter VncPassword is not valid.	The specified VNC password is invalid.
400	IncorrectVncPassword.Malformed	The specified parameter VncPassword must be 6 characters, including uppercase characters, lowercase characters and numbers.	-
403	IncorrectInstanceStatus	The current status of the resource does not support this operation.	The resource is in a state that does not support the current operation.
403	InstanceNotReady	Temporarily unable to connect the specified instance,please try later.	-
404	InvalidInstanceId.NotFound	The specified InstanceId does not exist.	The specified instance does not exist.
404	InvalidRegionId.NotFound	The specified RegionId does not exist.	The specified region ID does not exist.
404	NoSuchResource	The specified resource is not found.	The specified resource does not exist.

For a list of error codes, visit the Service error codes.

Change history

Change time	Summary of changes	Operation

No change history