GetHost - Bastionhost - Alibaba Cloud Documentation Center

Queries the details of a host, such as the name, source, address, protocol, and service port of the host.

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RAM authorization

The table below describes the authorization required to call this API. You can define it in a Resource Access Management (RAM) policy. The table's columns are detailed below:

Action: The actions can be used in the Action element of RAM permission policy statements to grant permissions to perform the operation.
API: The API that you can call to perform the action.
Access level: The predefined level of access granted for each API. Valid values: create, list, get, update, and delete.
Resource type: The type of the resource that supports authorization to perform the action. It indicates if the action supports resource-level permission. The specified resource must be compatible with the action. Otherwise, the policy will be ineffective.
- For APIs with resource-level permissions, required resource types are marked with an asterisk (*). Specify the corresponding Alibaba Cloud Resource Name (ARN) in the Resource element of the policy.
- For APIs without resource-level permissions, it is shown as All Resources. Use an asterisk (*) in the Resource element of the policy.
Condition key: The condition keys defined by the service. The key allows for granular control, applying to either actions alone or actions associated with specific resources. In addition to service-specific condition keys, Alibaba Cloud provides a set of common condition keys applicable across all RAM-supported services.
Dependent action: The dependent actions required to run the action. To complete the action, the RAM user or the RAM role must have the permissions to perform all dependent actions.

Action

Access level

Resource type

Condition key

Dependent action

yundun-bastionhost:GetHost

get

*All Resource

*

None

Request parameters

Parameter	Type	Required	Description	Example
InstanceId	string	Yes	The ID of the bastion host in which you want to query the host. Note You can call the DescribeInstances operation to query the ID of the bastion host.	bastionhost-cn-st220aw****
RegionId	string	No	The region ID of the bastion host in which you want to query the host. Note For more information about the mapping between region IDs and region names, see Regions and zones.	cn-hangzhou
HostId	string	Yes	The ID of the host that you want to query. You can specify only one host ID. Note You can call the ListHosts operation to query the ID of the host.	1

Response elements

Element	Type	Description	Example
	object
RequestId	string	The request ID.	EC9BF0F4-8983-491A-BC8C-1B4DD94976DE
Host	object	The returned information about the host.
Comment	string	The description of the host.	host
ActiveAddressType	string	The address type of the host. Valid values: Public: a public address Private: a private address	Public
HostPublicAddress	string	The public address of the host. The value is a domain name or an IP address.	1.1.XX.XX
HostName	string	The hostname.	host
Source	string	The source of the host. Valid values: Local: a host in a data center Ecs: an Elastic Compute Service (ECS) instance Rds: a host in an ApsaraDB MyBase dedicated cluster	Local
HostPrivateAddress	string	The internal endpoint of the host. The value is a domain name or an IP address.	192.168.XX.XX
OSType	string	The operating system of the host. Valid values: Linux Windows	Linux
HostId	string	The ID of the host.	1
SourceInstanceState	string	The status of the host. Valid values: Normal: normal Release: released	Normal
SourceInstanceId	string	The ID of the ECS instance or the host in an ApsaraDB MyBase dedicated cluster. Note If Local is returned for the Source parameter, no value is returned for this parameter.	i-bp19ienyt0yax748****
Protocols	array<object>	The protocol information about the host.
	object
HostFingerPrint	string	The fingerprint of the host. This parameter uniquely identifies a host. A value is returned for this parameter only if you have performed O&M operations on the host by using the bastion host. Otherwise, no value is returned.	ssh-ed25519\|3e:46:5a:e1:1f:0d:39:7e:61:35:d5:fa:7b:2b::
Port	integer	The service port of the host.	22
ProtocolName	string	The protocol that is used to connect to the host. Valid values: SSH RDP	SSH
NetworkDomainId	string	The ID of the network domain to which the host belongs.	1
PrefKex	string	The preferred key exchange algorithm of the host. The value of this parameter is returned if OSType is set to Linux. Valid values: default diffie-hellman-group1-sha1 diffie-hellman-group14-sha1 diffie-hellman-group-exchange-sha1	default

Examples

Success response

JSON format

{
  "RequestId": "EC9BF0F4-8983-491A-BC8C-1B4DD94976DE",
  "Host": {
    "Comment": "host",
    "ActiveAddressType": "Public",
    "HostPublicAddress": "1.1.XX.XX",
    "HostName": "host",
    "Source": "Local",
    "HostPrivateAddress": "192.168.XX.XX",
    "OSType": "Linux",
    "HostId": "1",
    "SourceInstanceState": "Normal",
    "SourceInstanceId": "i-bp19ienyt0yax748****",
    "Protocols": [
      {
        "HostFingerPrint": "ssh-ed25519|3e:46:5a:e1:1f:0d:39:7e:61:35:d5:fa:7b:2b:**:**",
        "Port": 22,
        "ProtocolName": "SSH"
      }
    ],
    "NetworkDomainId": "1",
    "PrefKex": "default"
  }
}

Error codes

HTTP status code	Error code	Error message	Description
400	InvalidParameter	The argument is invalid.	The argument is invalid.
400	HostNotFound	The host is not found.
500	InternalError	An unknown error occurred.	An unknown error occurred.

See Error Codes for a complete list.

Release notes

See Release Notes for a complete list.