How to connect on-premises server to azure server? - azure

I'm trying to make a connection between on-premises server and azure server. I tried to ping the azure server IP from on-premises server but no connection was made (Note: I'm on a free-trial plan). I did some research and found out either VPN setup / ExpressRoute is required. My question is:
is it possible to make a connection in free-trial plan?
is there any way to make a hybrid connection without setting up VPN/ExpressRoute?

I believe it is, but it will cost you whatever the cheapest VPN costs (basic SKU).
Azure Service Bus Relay might be an option, depending on what you are after

Firstly, make sure you have set the Azure SQL database firewall settings, then the Azure SQL database will allow the connect from the On-premise SQL Server.
Azure SQL Server doesn't have the IP property, you must use the fully qualified name to connect to the SQL Azure server, format like:
[servername].database.windows.net
You can get this On portal:
Hope this helps.

Related

How do you connect an Azure Function (not an App Service) to an on-premise SQL server via a VPN?

I have a large SQL server hosted in our infrastructure, and an Azure resource set up with VPN access to our servers.
I want to create an Azure Function that connects to this SQL server. It's going to be a webhook endpoint to save to that DB. I don't need the overhead of an App Service Plan, I want the lightweight Function and the cheaper consumption pricing model.
All the tutorials online refer to App Services and Hybrid Connections that don't appear to be available in to Azure Functions on Consumption Plans.
I also want to keep the connection string configuration in Azure, and not hard-coded in the source or publish (which will ultimately be via CI).
The Azure Function is currently coded in C# in VS2019, but I can change that if it helps.
How do I set this up?
This option is not available on consumption plan. There is a already user voice open for this.
https://feedback.azure.com/forums/355860-azure-functions/suggestions/33398398-add-support-for-hybrid-connections-to-consumption
Yes it is possible. You would need to use something like Hybrid Connection. Does not matter which IDE you used to create the function.Check out the following link.
The Hybrid Connections feature requires a relay agent in the network
that hosts your Hybrid Connection endpoint. That relay agent is called
the Hybrid Connection Manager (HCM). To download HCM, from your app in
the Azure portal, select Networking > Configure your Hybrid Connection
endpoints.
Azure App Service Hybrid Connections

How to enable the access to Azure services in my AZURE SQL database server?

I'm trying to create a "Integration Runtime" (AZURE-SSIS type) in my data factory. (To run my SSIS packages in cloud) I already have a virtual machine (Azure SQL data base server Up and running).
While during the IR creation process I'm not able to link my AZURE SQL database SSISDB catalog to "Catalog database server endpoint" (OR) the server is not showing up in the drop down box.
In the MSDN blog it says
"Confirm that the **Allow access to Azure services** setting is enabled for the database server. This is not applicable when you use Azure SQL Database with virtual network service endpoints/Managed Instance to host SSISDB."
Could anyone know how to enable this feature ? I hope by enabling this feature I can link my server in the IR and run the packages in the cloud.
Thanks
To allow applications from Azure to connect to your Azure SQL server,
Azure connections must be enabled. When an application from Azure
attempts to connect to your database server, the firewall verifies
that Azure connections are allowed. A firewall setting with starting
and ending address equal to 0.0.0.0 indicates Azure connections are
allowed. If the connection attempt is not allowed, the request does
not reach the Azure SQL Database server.
you can do it any way, powershell, az cli, arm templates. if you go to the portal to the firewall blade, there would be a button to do that.
https://learn.microsoft.com/en-us/azure/sql-database/sql-database-firewall-configure
Please take a look where is located on below image.
On this documentation you will have instructions how to reach that screen.

Harden the security between Azure Web Apps and Azure SQL Database

For security concerns I'm planning to not allow Azure services to communicate with Azure services but the services it is only working with.
For example, I've some web apps that uses Azure SQL Databases. Should I only add the outbound IP addresses of Azure Web Apps in the Azure SQL server firewall?
or I need to do something else?
This is not as easy as it should be. SQL Azure is not designed to be virtual network friendly so your only options are "Allow all Azure services" or hard-coded IPs. Unless your web apps have static IPs however, this won't be possible without writing a custom updater for the database which picks up IP address changes.
You could install a SQL server onto a VM and use virtual private networks, otherwise, make sure the login credentials are secure and accept the fact that an Azure client from anyone could attempt to connect to your database server.
The best way to lock down your SQL Database is with AAD Integration, and Managed Service Identities. Azure will provision an AAD identity for your application, and only code running in that application will be able to generate an Access Token for that Identity. Then you can provision it as an AAD user in your SQL Server.
This has the (large) added benefit of removing the secrets from the application, so you don't have to configure your application with a Client Secret, or a SQL Login/Password.
You can also run your App on a VNet, and configure your SQL firewall to only permit access from that VNet using Virtual Network service Endpoints For Azure SQL Database.
Or use the newer and much better Private Link for Azure SQL Database.
Some of the ways to secure the connection to the sql database that could be considered in this case are -
As you mentioned you are already thinking of configuring a firewall to whitelist the allowed IP addresses. The firewall could be configured both on the sql server level and the database level(we can use SSMS to configure the firewall at the database level).
We can encrypt data. Of course this would be encryption at rest. And the good news is the application connecting to the database need not change to query encrypted data.
The third way would be the traditional way(even if we were not using azure db) we would prevent unauthorized access by creating users/roles/permissions.
A very nice feature I found Azure db provides is the Threat Detection Capability. If you turned that on we would be notified of the possible vulnerabilities of the current db/server setup. And also where can we make improvements to fix those issues.
Connect your Azure function with your SQL DB using private endpoints and VNET integration. Your app service will need to be standard or premium. Even Premium function plan will do. This LINK talks about it.
Authenticate your azure function on your SQL DB using managed identities. See this link for info on how to do that. Managed identities
In short yes.
You can possibly make this more secure by creating vnet connection from the web app and creating a service endpoint for SQL. I'm not sure that will work, but worth a try.

How to connect Azure SQL database from on-premise SSMS in hybrid environment without Azure Data Gateway

I am trying to connect to Azure SQL database through on-premise SSMS and SSIS (its a requirement to push data on premise to Azure cloud). But my organization's firewall is blocking the connection to Azure database, although the Azure subscription is with same org. I tried pulling data with Azure Data Factory but it requires installation of Data Gateway and firewall is also blocking installation/registration of this gateway. Is there any alternate way to bypass this. Raising firewall exception for Data Gateway is not an option in this case. Thanks
Are sure your firewall blocks the installation of Data Management Gateway? I don't really know how a firewall achieves this. Maybe you meant Group Policy?
Using Data Management Gateway to move data to Azure SQL database is only requiring outgoing port 443, which is allowed by default in most firewalls.
If the Group Policy blocks installation of Data Management Gateway, you could try to upload data to a Azure Blob at first (also require outgoing port 443), and then using Data Factory to copy data from Azure Blob to Azure SQL database (gateway is not needed in that case).
Azure SQL works on Port 1433. You are unable to access Azure SQL probably because your organization's firewall is blocking this port. If you can get port 1433 enabled with your network admin then it should work.

Is there way to create HYBRID CONNECTIONS for azure could service or azure VM?

I azure we can create Hybrid connection to local sql server from Web Sites and Mobile Service. But I need to create Hybrid service to My Local SQL server from VM or cloud service. Is there anyway to achieve this one?
You can, actually.
The tool is called the Microsoft Azure Hybrid Connection Client
This runs as a service on your VM, and you add Hybrid Connections to it.
(That is, it = the VM that needs to talk to the on-prem asset.)
When a connection is added, a HOSTS file entry is made for the particular dns name and is routed through Azure to your on-prem Hybrid Connection Manager.
The Connection String you add will be the 'Application' one(s), which you will find in the old portal
According to Microsoft Hybrid connection will support only for WebSite and Mobile Web Services.
So I couldn't directly achieve my requirement. But alternative way is, implement the WCF service which can be hosted as WebSite.Now you can hosted your SQL database locally and create hybrid connection to the database from WCF service.Then you can call your WCF service from VM or cloud service.
Thanks,
Erandika

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