<div>
Get a wildcard DNS certificate (that supports multiple subdomains). The certificate will work for all your subdomains and can be on different servers.
</div>


Get a wildcard DNS certificate (that supports multiple subdomains). The certificate will work for all your subdomains and can be on different servers.

<div>
<div class="content wysiwyg-content">
I have two servers, one server for accessing the office internal network from Internet, the other one for Exchange/owa. <br />
Both OWA and the home-office-connection require port 443 to work. <br />
We can only have 1 external IP-adress, which is assigned to the firewall. <br />
The Internet-adresses would be like this:<br />
<a href="https://vpn.companyname.com" rel="ugc">https://vpn.companyname.com</a><br />
<a href="https://webmail.companyname.com/owa" rel="ugc">https://webmail.companyname.com/owa</a><br />
Is there any way we can make this work?
</div>
</div>


I have two servers, one server for accessing the office internal network from Internet, the other one for Exchange/owa. 
Both OWA and the home-office-connection require port 443 to work. 
We can only have 1 external IP-adress, which is assigned to the firewall. 
The Internet-adresses would be like this:
https://vpn.companyname.com
https://webmail.companyname.com/owa
Is there any way we can make this work?

2 internal servers need to use the same 443-port

Transmission Control Protocol/Internet Protocol (TCP/IP) is the set of networking protocols that define end-to-end connectivity specifying how data should be packeted, addressed, transmitted, routed and received at the destination. This functionality is organized into four abstraction layers which are used to sort all related protocols according to the scope of networking involved.