Is that possible to configure timeout for proxy service at application level rather than at the server level domain configuration. I need to set a connection timeout for my service below the timeout setting that we already have in server configuration
Please let me know the ways to achieve this
Related
I have an Azure VPN client that I use for connecting to a web server using RDP and to an Azure SQL Server instance using SSMS. The problem is, I cannot connect to both at the same time.
When I go to the Networking properties of the VPN connection, then select the properties of TCP/IPv4, if I select "Use default gateway on remote network", I am able to connect to RDP, but not SQL Server. If "Use default gateway on remote network" is not selected, I am able to connect to SQL Server, but not RDP.
What can I do to be able to connect to both at the same time?
As far as I know. By default, once a successful VPN connection creates, the highest priority entry will be added automatically in the local machine route table. When you select Use default gateway on remote network, data that can not be sent on the local network is forwarded to the dial-up network when you are connected to a local network and a dial-up network simultaneously. The local network prefers to select a VPN connection route. The connection to a local network is disconnected automatically by default. So you could RDP to the web server via the private VPN connection in the dial-up network. You could not access the Azure SQL server since the traffic from the dial-up network is not allowed in the firewall of Azure SQL server firewall. In this scenario, you could check if the outgoing traffic to the Internet from your dial-up network is blocking.
When you un-select Use default gateway on remote network, usually default gateway of the PPP adaptor will be empty. In this scenario, you cannot connect to resources on the remote network because you have disabled the Use Default Gateway on Remote Network setting in the VPN TCP/IP configuration. You could add routes for the desired VPN subnets. Refer to this paragraph Configuring Split Tunnel for Windows
You could use route print on the local machine to check the route entry. Compare the route table in the two situations. More details you could get from this DOC.
It sounds to me like you need to configure a service endpoint on your vnet to allow traffic to route through to your Azure SQL database.
https://learn.microsoft.com/en-us/azure/sql-database/sql-database-vnet-service-endpoint-rule-overview
Try the link above for help configuring it.
Provisioning an instance of Azure AD Domain Services keeps on failing with the following message:
Error testing domain controller connectivity through PowerShell. A connection attempt failed because the connected party did not properly respond after a period of time, or established connection failed because connected host has failed to respond xx.xx.xx.xx:5986
Any ideas?
From : https://github.com/MicrosoftDocs/azure-docs/issues/43240
"message" : The resource operation completed with terminal provisioning state 'Failed'
"details":[{"code":"InternalError","message":"Error testing domain controller connectivity through PowerShell. A connection attempt failed because the connected party did not properly respond after a period of time, or established connection failed because connected host has failed to respond 20.190.251.173:5986"}]
Other people who have experienced this issue typically had something to do with VPNs, ExpressRoutes, or other special network setups.
I would suggest checking all your network connections and if you have any unique connections
Wait a few hours or until the next day to try again, as there may be some transient network related issues.
If that does not work, try reinstalling AAD DS on the server.
In addition to that : Please take into consideration Domain service instances using Classic Virtual networks are not supported.
Also I want to share with you the documentation for prerequisites, tutorial, network, notifications.
Prerequisites:
https://learn.microsoft.com/en-us/azure/active-directory/fundamentals/active-directory-how-subscriptions-associated-directory
Tutorial to create the instance
https://learn.microsoft.com/en-us/azure/active-directory-domain-services/tutorial-create-instance
Network security group rules require to setup the Azure AD DS
https://learn.microsoft.com/en-us/azure/active-directory-domain-services/network-considerations#network-security-groups-and-required-ports
Notifications to assist and manage alerts on the ADDS
https://learn.microsoft.com/en-us/azure/active-directory-domain-services/notifications
Make sure the network security group attached to the AADDS subnet is setup properly.
I was able to reproduce the error when the NSG did not have the required inbound rules
Error: waiting for Domain Service (Name: "", Resource Group: ""): Code="InternalError" Message="Error testing domain controller connectivity through PowerShell. A connection attempt failed because the connected party did not properly respond after a period of time, or established connection failed because connected host has failed to respond 20.198.186.xxx:5986"
The following NSG entries fixed the issue described above.
Also make sure you set the DNS servers on the vnet to the IP addresses that will be assigned to the DC before you deploy the AADDS service.
Our infrastructure team has worked to configure a site-to-site Azure VPN connection between our Azure subscription and our on-prem firewall, essentially following these steps. To test this, we've created a simple Azure web app that makes a query against a SQL Server that is located on-prem behind the firewall.
This web app works locally with no issues. Furthermore, the same code and connection string, when compiled as a console application and run on an Azure virtual machine, works correctly as well. But when deployed to the web app in Azure, the connection to the SQL Server fails:
[Win32Exception (0x80004005): The wait operation timed out]
[SqlException (0x80131904): A network-related or instance-specific
error occurred while establishing a connection to SQL Server. The
server was not found or was not accessible. Verify that the instance
name is correct and that SQL Server is configured to allow remote
connections. (provider: TCP Provider, error: 0 - The wait operation
timed out.)]
Both the Azure VM and web app are configured to point to the Azure VNet. It seems like something is preventing the web app from communicating with the SQL Server on its default port (1433). If I open up the web app's debug console and do a tcpping at the SQL Server with the default port (80), it returns successfully. But a tcpping to port 1433 times out.
It doesn't appear that the Azure Network Security Group is blocking that port:
The only solutions I've found that are relevant to our specific setup basically boil down to "use Azure Hybrid Connections instead", which would not be our first choice.
After working with Microsoft's support, the following changes were made and the VNet integration is working now. I apologize for the lack of detail on some of these, but our infrastructure team did most of the troubleshooting. Hopefully, some of these items will help point someone else the direction of a solution for their setup:
Initially, the connection was being made through public internet and not the VNET Integration and VPN. We identified that the VNET integration was failing due to the tunnel type being used. Azure App Service has a requirement that the tunnel type is SSTP. Once we changed it and synced the network, we were able to tcpping the SQL Server through its private IP.
We noticed it had to allow on the on-premises Network the point-to-site address pool. As a workaround, we decided to use the New VNET Integration (Preview). We created an empty subnet and were able to use this new feature.
We noticed then the App Service was not using the custom DNS. To resolve this, we added the DNS on the Virtual Network and also in the App Settings ("WEBSITE_DNS_SERVER") for the web app.
I’m having a very specific issue with Azure and I couldn’t find any solution on the web.
So, we are little by little migrating our client’s infrastructure to Azure and we are starting with our Workers (webjobs).
These webjobs need to consume data present on a AWS SQL Server instance.
We already have checked that the App Service Plan’s Outbound IPs are whitelisted and that the SQL server is listening on TCP port 1433.
An evidence of that is the fact that we are able to communicate with the SQL Server instance through the Azure Debug Console:
But when we run the WebApp, the worker cannot find and connect to the same DB:
Does anyone have a clue of how I can solve this issue? It would be very appreciated!
Well, as you demonstrated by the first image, the SQL Server instance is configured correctly.
The worker Outbound IP address is definetely the same as the App Service Plan's machine.
Based on that, can you then please check if the Connection string you are setting have 'tcp:' before the IP Address?
Sometimes you need to force it, otherwise IIS can choose other ways to connect to your SQL server (like UDP for instance).
One of our partners recently reported that our software could not contact a remote instance of SQL Express until they started the RPC Locator and SQL Server Browser services. Where would I find a list of services that must be running, on both server and client, to enable remote access to SQL Express and/or SQL Server?
Sadly, the SQL Express documentation does not appear to include this detail.
SQL Express always installs as a named instance (servername\sqlexpress) and hence has a dynamic port assigned to it. The SQL Browser service is required for clients to locate the instance. Without the SQL browser, a client won't know what port the service is listening on.
Looking at my current installation of SQL Server, I have remote connections enabled and working and both RPC Locator and SQL Server Browser services are disabled on the machine.
The key is that you have to enable remote connections properly in the Surface Area Configuration Wizard.
I've experienced problems in the past running linked server queries if the MS DTC (Distributed Transaction Co-ordinator) service was not running
I don't know of any services that need to running on the client (unless they're application dependencies), but for the server, this KB article explains how to enable remote connections to SQL Server: http://support.microsoft.com/kb/914277.
By default, SQL Express is configured to only allow local connections. The gist of the article is: use the Surface Area Configuration tool to tell the SQL service to listen on tcp/ip and/or named pipes; then enable the SQL Browser service (or don't, and use a specific port in your client connection); and finally, poke a hole in your firewall. Anecdotally, I think most people have the most trouble with the firewall exceptions.
I think the RPC Locator service is more of a general windows service for handling COM calls, so I'm not sure it's fair to characterize it as a SQL-specific requirement; your app may require it to connect, but I don't know that every app would (e.g. Mitchel says that his installation works fine w/out it).