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Bastionhost:API overview

Last Updated:Sep 17, 2025

API standard and pre-built SDKs in multi-language

The OpenAPI specification of this product (Yundun-bastionhost/2019-12-09) follows the RPC standard. Alibaba Cloud provides pre-built SDKs for popular programming languages to abstract low-level complexities such as request signing. This enables developers to call APIs using language-specific syntax without dealing with HTTP details directly.

Custom signature

If your specific needs, such as a customized signature, are not supported by the SDK, manually sign requests using the signature mechanism. Note that manual signing requires significant effort (usually about 5 business days). For support, join our DingTalk group (ID: 147535001692).

Before you begin

An Alibaba Cloud account has full administrative privileges. A compromised AccessKey pair exposes all associated resources to unauthorized access, posing a significant security risk. Create a Resource Access Management (RAM) user with API-only access and use RAM policies to apply the principle of least privilege (PoLP). Alibaba Cloud accounts are only used when explicitly required.

To call APIs securely, configure the following:

Bastionhost instance (V3.2.X only)

API

Title

Description

DescribeInstanceAttribute DescribeInstanceAttribute Queries the attribute information about the specified bastion host. The information includes the ID and remarks of the bastion host.
DescribeInstances DescribeInstances Queries bastion hosts.
ConfigInstanceSecurityGroups ConfigInstanceSecurityGroups Configures security groups for a bastion host.
ConfigInstanceWhiteList ConfigInstanceWhiteList Configures a whitelist of public IP addresses for a bastion host.
StartInstance StartInstance Starts a bastion host.
EnableInstancePublicAccess EnableInstancePublicAccess Enables Internet access to a bastion host.
DisableInstancePublicAccess DisableInstancePublicAccess Disables Internet access to a bastion host.
ModifyInstanceAttribute ModifyInstanceAttribute Modifies the information about a bastion host.
MoveResourceGroup MoveResourceGroup Moves a Bastionhost instance to a specified resource group.
AddInstanceRdMember AddInstanceRdMember Adds a member account from a Resource Directory (RD).
ListInstanceRdMembers ListInstanceRdMembers Lists the member accounts of a Resource Directory.
RemoveInstanceRdMember RemoveInstanceRdMember Removes an RD member account.

Tags (for V3.2.X only)

API

Title

Description

ListTagKeys ListTagKeys Queries the tags that are attached to a resource.
ListTagResources ListTagResources Queries the tags attached to one or more Bastionhost instances.
UntagResources UntagResources Removes tags from one or more Bastionhost instances in a batch.
TagResources TagResources Creates and attaches tags to one or more Bastionhost instances.

Region (V3.2.X only)

API

Title

Description

DescribeRegions DescribeRegions Queries the Alibaba Cloud regions where Bastionhost is available.

Host (V3.2.17 and later)

API

Title

Description

CreateHost CreateHost Bastionhost allows you to perform O\\\&M operations on hosts from different sources, such as Alibaba Cloud Elastic Compute Service (ECS) instances, servers in on-premises data centers, and servers on other cloud platforms. Before you perform O\\\&M operations on hosts by using a bastion host, you must import the hosts to the bastion host. You can call this operation to import a host to a bastion host.
GetHost GetHost Queries the details of a host, such as the name, source, address, protocol, and service port of the host.
ListHosts ListHosts Queries the hosts in a bastion host.
DeleteHost DeleteHost Deletes a host.
ModifyHostsPort ModifyHostsPort Changes the port for the O\\\\\\&M protocol on one or more hosts.
ModifyHostsActiveAddressType ModifyHostsActiveAddressType Changes the endpoint type of one or more hosts for O\\\&M. Public and private IP addresses are supported.
ModifyHost ModifyHost Modifies information about a host. The information includes the address, name, and description of the host and the operating system that the host runs.

Database (for version 3.2.40 or later)

API

Title

Description

CreateDatabase CreateDatabase Imports an ApsaraDB RDS for MySQL instance, ApsaraDB RDS for SQL Server instance, ApsaraDB RDS for PostgreSQL instance, PolarDB for MySQL cluster, PolarDB for PostgreSQL cluster, PolarDB for PostgreSQL (Compatible with Oracle) cluster, self-managed MySQL database, self-managed SQL Server database, self-managed PostgreSQL database, or self-managed Oracle database to a bastion host.
ModifyDatabase ModifyDatabase Modifies the basic information about a database.
GetDatabase GetDatabase Queries the detailed information about a database.
ListDatabases ListDatabases Queries the databases that are managed by a bastion host.
DeleteDatabase DeleteDatabase Deletes a database.

Network domain (V3.2.40 and later)

API

Title

Description

CreateNetworkDomain CreateNetworkDomain If you want to perform O\\\&M operations on assets that reside in different networks or assets that cannot communicate with the virtual private cloud (VPC) of your bastion host in a centralized manner, we recommend that you use the network domain feature of Bastionhost. You can configure a proxy server for these assets, create a network domain for a bastion host, and then connect the network domain to the proxy server. This way, you can perform O\\\&M operations on the assets by using the bastion host.
GetNetworkDomain GetNetworkDomain Queries the detailed information about a network domain.
ListNetworkDomains ListNetworkDomains Retrieves the list of network domains for a specified Bastionhost instance.
DeleteNetworkDomain DeleteNetworkDomain Deletes a network domain.
ModifyNetworkDomain ModifyNetworkDomain Modifies the basic information about a network domain.
MoveHostsToNetworkDomain MoveHostsToNetworkDomain Adds multiple hosts to a network domain at a time.
MoveDatabasesToNetworkDomain MoveDatabasesToNetworkDomain Adds multiple databases to a network domain at a time.

Host accounts (V3.2.17 and later)

API

Title

Description

CreateHostAccount CreateHostAccount After creating a host in Bastionhost, you can create corresponding host accounts for it, which means managing your existing host accounts in Bastionhost. After creating host accounts, O&M engineers can use these accounts to log on to hosts through Bastionhost for O&M operations.
GetHostAccount GetHostAccount Retrieves the details of a specified host account.
ListHostAccounts ListHostAccounts Queries a list of host accounts.
ModifyHostAccount ModifyHostAccount Modifies host account information, including the name, password, and private key of the host account.
DeleteHostAccount DeleteHostAccount Removes a host account.
ResetHostAccountCredential ResetHostAccountCredential Deletes the logon credential of a specified host account. The logon credential can be the password or Secure Shell (SSH) private key.

Database accounts for V3.2.40 and later

API

Title

Description

CreateDatabaseAccount CreateDatabaseAccount After a database is created, you can create a database account for the database. After the account is created, O\\\&M engineers can use the account to log on to and perform O\\\&M operations on the database.
ModifyDatabaseAccount ModifyDatabaseAccount Modifies the basic information about a database account.
GetDatabaseAccount GetDatabaseAccount Queries the detailed information about a database account.
ListDatabaseAccounts ListDatabaseAccounts Queries the database accounts of a database.
ListDatabaseAccountsForUserGroup ListDatabaseAccountsForUserGroup Queries the database accounts of a database and whether a user group is authorized to manage each database account.
DeleteDatabaseAccount DeleteDatabaseAccount Deletes a database account.

Users (Version 3.2.17 and later)

API

Title

Description

CreateUser CreateUser Adds a user to a bastion host.
GetUser GetUser Queries the details of a user of the specified bastion host.
ListUsers ListUsers Queries a list of users of a bastion host.
ModifyUser ModifyUser Modifies the information about a user of a bastion host.
DeleteUser DeleteUser Deletes a bastion host user.
CreateUserPublicKey CreateUserPublicKey Creates a public key for a bastion host user and hosts the public key in the bastion host. This way, O\\\&M engineers can use the private key that corresponds to the public key to log on to the bastion host from an O\\\&M client.
ListUserPublicKeys ListUserPublicKeys Queries all public keys of a user.
ModifyUserPublicKey ModifyUserPublicKey Modifies the public key of the user.
DeleteUserPublicKey DeleteUserPublicKey Deletes a public key from the specified user.
LockUsers LockUsers Locks one or more users of a bastion host.
UnlockUsers UnlockUsers Unlocks one or more users of a bastion host.

User groups (V3.2.17 and later)

API

Title

Description

CreateUserGroup CreateUserGroup Creates a user group for a bastion host.
GetUserGroup GetUserGroup Queries the details of a user group in a bastion host.
ListUserGroups ListUserGroups Queries a list of user groups on a bastion host.
ModifyUserGroup ModifyUserGroup Modifies the information about a user group.
DeleteUserGroup DeleteUserGroup Deletes a user group from a bastion host.
AddUsersToGroup AddUsersToGroup Add one or more users to a user group.
RemoveUsersFromGroup RemoveUsersFromGroup Removes one or more users from a user group.

Asset groups (for V3.2.17 and later)

API

Title

Description

CreateHostGroup CreateHostGroup You can create asset groups based on your business requirements and add assets of the same type to an asset group. This allows you to classify assets and manage multiple assets at a time.
AddDatabasesToGroup AddDatabasesToGroup Adds multiple databases to a specified asset group.
AddHostsToGroup AddHostsToGroup Adds one or more hosts to the specified host group.
RemoveDatabasesFromGroup RemoveDatabasesFromGroup Removes multiple databases from an asset group at a time.
DeleteHostGroup DeleteHostGroup Deletes a host group.
RemoveHostsFromGroup RemoveHostsFromGroup Removes multiple hosts from an asset group at a time.
ModifyHostGroup ModifyHostGroup Modifies the name or description of the specified host group.
GetHostGroup GetHostGroup Queries the details of a specified host group.
ListHostGroups ListHostGroups Queries a list of asset groups that are managed by a bastion host.

Host authorization (for V3.2.17 and later)

API

Title

Description

AttachHostAccountsToUser AttachHostAccountsToUser After you add a user to your bastion host, you must authorize the user to manage assets. Only authorized users can log on to the bastion host to perform O\\\&M operations on the assets.
ListHostsForUser ListHostsForUser Queries the hosts that a user group is authorized or not authorized to manage.
ListHostAccountsForUser ListHostAccountsForUser Queries the host accounts of a host and whether a user is authorized to manage each host account.
DetachHostAccountsFromUser DetachHostAccountsFromUser Revokes permissions on hosts and host accounts from a user.
DetachHostAccountsFromUserGroup DetachHostAccountsFromUserGroup Revokes the permissions on one or more hosts and host accounts from a user group.
DetachHostGroupAccountsFromUser DetachHostGroupAccountsFromUser Removes host groups and host accounts from the list of host groups and host accounts that a user is authorized to manage.
AttachHostAccountsToUserGroup AttachHostAccountsToUserGroup Authorizes a user group to manage one or more hosts and host accounts.
DetachHostGroupAccountsFromUserGroup DetachHostGroupAccountsFromUserGroup Revokes permissions on one or more host groups and host accounts from a user group.
AttachHostGroupAccountsToUser AttachHostGroupAccountsToUser Authorizes a user to manage one or more host groups and host accounts.
AttachHostGroupAccountsToUserGroup AttachHostGroupAccountsToUserGroup Authorizes a user to manage one or more host groups and host accounts.
ListHostAccountsForUserGroup ListHostAccountsForUserGroup Queries the host accounts of a host and whether a user group is authorized to manage each host account.
ListHostGroupAccountNamesForUser ListHostGroupAccountNamesForUser Queries the names of the host accounts that a specified user is authorized to manage in a specified host group.
ListHostGroupAccountNamesForUserGroup ListHostGroupAccountNamesForUserGroup Queries the names of the host accounts that a user group is authorized to manage in a host group.
ListHostGroupsForUser ListHostGroupsForUser Queries a list of host groups that a bastion host user is authorized or is not authorized to manage.
ListHostGroupsForUserGroup ListHostGroupsForUserGroup Queries the hosts that a specified user group is authorized or not authorized to manage.
ListHostsForUserGroup ListHostsForUserGroup Queries the hosts that a user group is authorized or not authorized to manage.

Database authorization (V3.2.40 and later)

API

Title

Description

AttachDatabaseAccountsToUser AttachDatabaseAccountsToUser Authorizes a user to manage databases and database accounts.
ListDatabasesForUser ListDatabasesForUser Queries the databases that a user is authorized to manage.
DetachDatabaseAccountsFromUserGroup DetachDatabaseAccountsFromUserGroup Revokes permissions on databases and database accounts from a user group.
ListDatabaseAccountsForUser ListDatabaseAccountsForUser Queries the database accounts of a database and whether a user is authorized to manage each database account.
DetachDatabaseAccountsFromUser DetachDatabaseAccountsFromUser Revokes permissions on databases and database accounts from a user.
AttachDatabaseAccountsToUserGroup AttachDatabaseAccountsToUserGroup Grants permissions on databases and database accounts to a user group.
ListDatabasesForUserGroup ListDatabasesForUserGroup Queries the list of databases that are authorized for a user group.

O&M token (for V3.2.40 and later)

API

Title

Description

ListOperationDatabases ListOperationDatabases Queries a list of databases that the current Resource Access Management (RAM) user is authorized to manage.
ListOperationHosts ListOperationHosts Queries a list of hosts that the current Resource Access Management (RAM) user is authorized to manage.
ListOperationHostAccounts ListOperationHostAccounts Queries a list of host accounts that the current Resource Access Management (RAM) user is authorized to manage.
ListOperationDatabaseAccounts ListOperationDatabaseAccounts Queries a list of database accounts that the current Resource Access Management (RAM) user is authorized to manage.
GenerateAssetOperationToken GenerateAssetOperationToken Applies for an O\\\&M token.
RenewAssetOperationToken RenewAssetOperationToken Renews an O\\\&M token for one hour.
CreateOperationTicket CreateOperationTicket When an administrator enables operation approval in control policies, operations and maintenance (O&M) engineers must first create an operation request and obtain administrator approval before performing O&M operations.

Authorization rules (for V3.2.40 and later)

API

Title

Description

CreateRule CreateRule You can create authorization rules to authorize multiple users to manage assets. You can also specify a validity period for an authorization rule. This way, you can manage users and assets in a more efficient manner and limit the time periods during which users can access assets.
ModifyRule ModifyRule Modifies the basic information of an authorization rule.
GetRule GetRule Queries the detailed information about an authorization rule.
ListRules ListRules Queries a list of authorization rules of a bastion host.
EnableRule EnableRule Enables an authorization rule.
DisableRule DisableRule Disables an authorization rule.
DeleteRule DeleteRule Deletes an authorization rule.

Control policies for V3.2.40 and later

API

Title

Description

CreatePolicy CreatePolicy Configures a command control, command approval, protocol control, or access control policy to manage O\\\&M operations. This effectively prevents users from performing high-risk operations or accidental operations to ensure O\\\&M security.
ModifyPolicy ModifyPolicy Modifies the basic information about a control policy.
GetPolicy GetPolicy Queries the detailed information about a control policy.
ListPolicies ListPolicies Queries a list of control policies.
GetPolicyAssetScope GetPolicyAssetScope Queries the assets to which a control policy applies.
SetPolicyProtocolConfig SetPolicyProtocolConfig Configures the Remote Desktop Protocol (RDP) options, SSH options, and SSH Fine Transfer Protocol (SFTP) options for a control policy.
SetPolicyCommandConfig SetPolicyCommandConfig Specifies the commands that can or cannot be run by the users or on the assets associated with the policy and the commands that must be reviewed.
SetPolicyIPAclConfig SetPolicyIPAclConfig Specifies whether a source IP address can access the assets to which a control policy applies.
GetPolicyUserScope GetPolicyUserScope Queries the scope of users to whom a control policy applies.
SetPolicyAccessTimeRangeConfig SetPolicyAccessTimeRangeConfig Configures the logon period limits in a control policy.
SetPolicyAssetScope SetPolicyAssetScope Specifies the assets to which a control policy applies.
SetPolicyUserScope SetPolicyUserScope Specifies the users to whom a control policy applies.
SetPolicyApprovalConfig SetPolicyApprovalConfig Configures the O\&M approval setting in a control policy.
DeletePolicy DeletePolicy Deletes a control policy.

Approval (V3.2.37 and later)

API

Title

Description

ListApproveCommands ListApproveCommands Queries commands to be reviewed.
AcceptApproveCommand AcceptApproveCommand If an O\\\&M engineer attempts to run a command specified in the Command Approval field on the Create Control Policy page, the administrator is notified to review the command in the Bastionhost console. The command can be run only after it is approved by the administrator.
RejectApproveCommand RejectApproveCommand If an O\\\&M engineer attempts to run a command specified in the Command Approval section of the Create Control Policy page, the administrator is notified to review the command in the Bastionhost console. The command can be run only after it is approved by the administrator.
ListOperationTickets ListOperationTickets Queries O\\\\\\&M applications to be reviewed.
AcceptOperationTicket AcceptOperationTicket Approves an O\\\\\\\\\\&M application.
RejectOperationTicket RejectOperationTicket If a Bastionhost administrator enables O\\\&M Approval on the Create Control Policy page, O\\\&M engineers can log on to assets to perform O\\\&M operations only after the administrator approves their O\\\&M applications.

Shared key (V3.2.X only)

API

Title

Description

CreateHostShareKey CreateHostShareKey Bastionhost provides the shared key feature. This feature allows you to manage the private key that is used to log on to a host in a bastion host. This way, you can associate the private key with multiple accounts of the host to make host account management more efficient.
GetHostShareKey GetHostShareKey Queries the information about a shared key.
ListHostShareKeys ListHostShareKeys Queries the shared keys that are associated with a host.
ListHostAccountsForHostShareKey ListHostAccountsForHostShareKey Queries the host accounts that are associated with a shared key.
ModifyHostShareKey ModifyHostShareKey Modifies a shared key.
AttachHostAccountsToHostShareKey AttachHostAccountsToHostShareKey Associates host accounts with a shared key.
DetachHostAccountsFromHostShareKey DetachHostAccountsFromHostShareKey Disassociate host accounts from a shared key.
DeleteHostShareKey DeleteHostShareKey Deletes a shared key.

System Settings (available only for bastion hosts that run V3.2.X)

API

Title

Description

GetInstanceADAuthServer GetInstanceADAuthServer Queries the settings of Active Directory (AD) authentication on a bastion host.
ModifyInstanceADAuthServer ModifyInstanceADAuthServer Modifies the settings of the Active Directory (AD) authentication server of a bastion host.
GetInstanceTwoFactor GetInstanceTwoFactor Queries the settings of two-factor authentication on a bastion host.
ModifyInstanceTwoFactor ModifyInstanceTwoFactor Modifies the two-factor authentication settings of a bastion host.
ModifyInstanceLDAPAuthServer ModifyInstanceLDAPAuthServer Modifies the settings of the Lightweight Directory Access Protocol (LDAP) authentication server of a bastion host.
GetInstanceLDAPAuthServer GetInstanceLDAPAuthServer Queries the settings of Lightweight Directory Access Protocol (LDAP) authentication on a bastion host.
GetInstanceStoreInfo GetInstanceStoreInfo Queries the storage usage of a Bastionhost instance.
CreateExportConfigJob CreateExportConfigJob Creates a configuration backup export task. Only one configuration backup export task can run at a time for a Bastionhost instance.
GetExportConfigJob GetExportConfigJob null

Other

API

Title

Description

VerifyInstanceLDAPAuthServer VerifyInstanceLDAPAuthServer Verifies the LDAP service configuration of an instance.
VerifyInstanceADAuthServer VerifyInstanceADAuthServer Verifies the Active Directory service configuration of an instance.