I have a Win32 service that runs in an AD environment. Very early in its startup phase, this service now needs to make ADSI calls in order to find out the computer account's group membership. What service dependencies do I have to configure for my service so all necessary AD client services have successfully started beforehand and my ADSI calls can succeed? I already have a dependency on rpcss, because the service implements an rpc server, but past experience has shown to me, that this is not sufficient in order to make successful ADSI calls during system startup.
Any help appreciated,
--
Stefan
• Regarding the ‘Win32’ service class is an object in WMI that represents a service on a computer system running Windows. It is simplified from Managed Object Format (MOF) code and includes all the inherited properties. For more information on configuring, it through its various syntaxes, kindly refer to the below documentation link that describes in detail the syntax for configuring the methods and properties that it supports: -
https://learn.microsoft.com/en-us/windows/win32/cimwin32prov/win32-service
• Also, as you want your Win32 service to find out the computer account's group membership through ADSI, you would have to use collection objects to represent any arbitrary set of items in a directory service that can be represented using the same data type as that of the Win32 service. Collection objects are defined as a set of VARIANT values, representing any of the valid Automation data types. Collection objects can represent both persistent information such as access-control lists and volatile information such as print jobs in a print queue. Groups are simply collections of objects supporting the ‘IADsMembers’ interface. Kindly refer to the documentation below to use the above-stated interface as it will help you to retrieve the information from an AD group: -
https://learn.microsoft.com/en-us/windows/win32/api/iads/nn-iads-iadsmembers
• The services required for the connecting to Active Directory are Kerberos Key Distribution Center (KDC), BITS (Background Intelligence Transfer Service), WMI (Windows Management Instrumentation), RPC (Remote Procedure Call), Background Tasks Infrastructure Service (BTIS), Extensible Authentication Protocol (EAP), Distributed Transaction Coordinator, Netlogon, RPC Endpoint Mapper and Remote Registry. These services are normally required by the client to connect to the AD Services.
Related
Chris Richardson mentioned in his article "3rd-party-registration":
"The 3rd party registrar might only have superficial knowledge of the state of the service instance, e.g. RUNNING or NOT RUNNING and so might not know whether it can handle requests."
But what this really means? What information does a microservice send to the registrar when it starts? Why is the registrar not able to know information about the service and its location?
"The 3rd party registrar might only have superficial knowledge of the state of the service instance, e.g. RUNNING or NOT RUNNING and so might not know whether it can handle requests."
What information does a micro service send to the registrar when it starts? Why the registrar is not able to know information about the service and its location ?
The service will typically not contact the registry by itself. The pattern that has emerged is rather that an orchestration system starts up the service and makes sure the service is registered and its status is checked. This is helpful so you don't have to worry about these things when you design your service - The service should have a pure business focus and not have any knowledge about service discovery mechanisms. And the registry will of course need to know about the service and its location(s). Because it's part of the orchestration system it provides this information to the rest of the service cluster.
Then about the quote: It refers to the fact that the registrar is a separate entity and there is a need for communication between the registry and the service. The scope of communication is usually confined to the purpose of service readiness and availability (e.g. through a health probe). However it is not uncommon that systems with a service registry allow custom health probes for your own service types. Since those are in your control, you can define the exact communication and what APIs and return values make your service healthy or not.
Why is this very basic information about the service status sufficient?
The status information is what is required to divert traffic to healthy services when a service fails and / or automatically replace unhealthy service containers. These are the typical use cases and thus supported out of the box by a typical registration or orchestration system.
As far as I understand, the main entry point for a service application calls StartServiceCtrlDispatcher with an array of entries containing (among other things) the entry points for services to be run.
Nothing about that setup specifically requires any kind of installation: So why must a windows service be installed anyway?
I'm assuming it's an access management/security thing, but I can't find anything on the net.
Services are not connected to a specific user and a major selling point of a service is the ability to run when there are no users logged in. If there is no user around to start a service, how would Windows know what to start if there was no central list it could consult?
The list of services is stored in the registry and this is where the service manager gets the list of installed services and their configuration.
Most 3rd-party services only contain one service per .exe and the array passed to StartServiceCtrlDispatcher only contains one service. The famous svchost.exe can have more than one service in a single process and in this design each service is implemented in a .dll that is loaded by svchost.exe.
The svchost.exe design is used by Microsoft to reduce the total number of processes on a system. There will still be multiple svchost processes on a system, one for each configuration type (network access vs local only etc.).
Other configuration details the service manger needs to know about each service includes what action it should take if a service dies and if it should be delay-started etc. These settings are not hardcoded in the service itself so that administrators can change the configuration.
We have a complex landscape of web services on Oracle Service Bus (latest release). We use JDeveloper to maintain it and we are going to use Enterprise Architect (SparxSystems) to model it. Currently, we only have MS Visio drawings. To make sure our model matches with reality, we would like to have a list of services and service connections exported from the OSB. It would be sufficient to have a list of connections (i.e. which services call which other services) in any format, but it would be great to be able to import this information into Enterprise Architect. Is this possible?
Instead of using JDeveloper, I would suggest to query the Service Bus runtime with the Java API. The API documentation gives samples how to connect and retrieve service configuration, see the Querying resources paragraph when following the link above.
You can list all proxy services and the business services they call, i.e. get their dependencies. In addition you can obtain other service information, which can be handy in the EA model.
I was looking at Azure SDK for ruby and after comparing the API available there with the list of Azure's services, I noticed that the SDK does not have API for achieving many of the tasks related to various services. Are the API mentioned on SDK's github homepage the only API available ?
Eg: It has API to create a virtual machine, but no API to add DNS server.
The SDK has API to create Virtual network which can take params or XML file.
I also want to know whether we can configure other services using XML files and if yes, where can I find the XML data structure to configure those services.
The azure documentation is huge and I am unable to find proper reference for the XML data structure and list of services which can be configured using Ruby SDK.
FYI : I am on Ubuntu machine and cannot use Azure's other tools which are specific to only Windows.
I wrote an Azure API client (that despite my best efforts, has remained closed source) in ruby that my company uses, and I can relate to how much of a beast their API can be. You will find the best resources here, which will document all of the XML that can be configured. It might also be relevant to note that the official cross platform SDK is actually their Node.js client, which is available at github, which will definitely work on Ubuntu, better than the Ruby SDK.
Following is the list of services configurable by the azure-sdk-for-ruby
Base Management Service (creating affinity group, listing locations)
Cloud Service
Storage Management Service (Blob, Queue, Table)
Service Bus Service (Queue, Topic) - Could not make it work.
SQL Database Management Service
Virtual Machine Management Service
Virtual Image & Disk Management Service
Virtual Network Management Service
I have created a quick reference of available methods and short description of various Azure entities.
Is there any way through which I can exchange data between two organization.
I want to do my coding in Plugin only. Can we write a code in plugin by which it accesses/manipulates the data of a different org through web services only and not directly hitting its database.
In know the orgs are different worker groups. Just wanted to know if its possible or if there is any other technique.
Thanks in advance.
The data for each CRM organisation is exposed via web services which differ slightly for CRM 2011 and CRM 4. The best thing to do is download the latest version of the SDK for the target platform as there are several examples in there for plugins and service based operations.
From your plugin you will be able to access the other organisation via this service and a connection to the service for the "local organisation in which the plugin is running will be available from the IExecutionContext parameter passed to your plugin. Any operations you carry out across both orgs will not be transactional though.
Also be sure to take a look at the sync and async options available for the plugins. If their use is appropriate for your scenario consider using an async plugin for the updates to the target org to minimise their effect on the source org.
Plug-ins will work. Hitting the database directly is actually not a supported model anyways. You can also think of using BizTalk as the middleware.