Risk of having Azure Multi Site-To-Site VPN with different client

[David9712]

My company decided to build an ETL server on Azure and share by multiple client. My task is to research on possibility to set up multiple VPN tunnel from cloud to multiple client office network. I feel that it will have security concern, but this is just my opinion, can anyone help me to list out the risk? Should i proceed?

[#2]

You can refer to Azure Network Security Guidelines, such as VPN services, which you can access using certificate-based VPN

https://docs.microsoft.com/en-us/azure/security/fundamentals/network-overview

https://docs.microsoft.com/en-us/azure/architecture/reference-architectures/dmz/secure-vnet-dmz?toc=...