Connecting multiple servers.?

Question

I am hosting up a small VPN and already have 1 server. I want to get another one but want it "connected" to the first, meaning, the login info for any of the servers is the same so if server1 isn't working, my users could connect to server2 but they cannot login to both at the same time.

Answer 1

This is exactly how domain authentication works. You set up one domain controller (like Windows server), and then set up a second server and promote it to be another domain controller. The first domain controller will automatically be the primary (the server that contains the master list of users) and the second will automatcially become the backup controller (the sever that can authenticate users as long as they're on the list it gets from the primary controller).



When users log in, if the primary controller is busy, the secondary controller will automatically step in. Only one server will authenticate a user at a time, so you can look at the primary server and think someone has never logged in because they're always logging into the secondary server.



FYI if you're setting up a VPN you will need to identify both authentication servers in your firewall or else users will only connect in via the server the firewall knows about.

Answer 2

You're hosting a VPN, but you come to Yahoo answers for advice on computer networking? I are confused.



Without a considerable amount of additional information (ie: platform OS, protocols, etc) this question is all but unanswerable. Besides, there's 1000 other places you should start before coming here for advice on configuring servers, this site is all but for kids looking for advice about what they should do about their Justin Bieber obsession.



Or are you looking for a quick answer? The quick answer is that there is no quick answer. Here's a few things to get you started on the right track.

Answer 3

Here is a good starting point for info