Is it possible to install multiple copies of the web server with only on backend database?

Is it possible to install multiple copies of the web server with only on backend database?

We would like to install a web server to present the SDP MSP user interface to our customers on thier site/network but the database to be located on a server that is on our site(for security reasons. This will need to be done for multiple customers. so a backend Database server with the SDP MSP database installed on our network and the java/web server to be in stalled on multiple sites (belongiong to customers) but able access the central database with us through a VPN. hope this is clear :)  

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