I have setup a VPN between Digital Ocean and my private network. I would like to use the DNS I have setup on that network for my VPN clients to use. Is this possible?
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Hi, I believe the answer to your question strongly depends on the configuration. In my case I cannot use DNS servers of my home office network because there are accessible just from inside my ISP’s network, and my internet gateway is in DO’s network when vpn connection is established. Here is my configuration:
Internet
|
|
------------------ ------------------
| DO Droplet 1 | 10.8.0.0/24 | Home Office |
| (CentOS 8) |_________VPN_______ | ISP's router |
| Internet gateway | \----| Internet gateway |
| VPN Server | \ ------------------
| Front-end Server | \____ |
------------------ | |LAN 192.168.0.0/24
| | |------------
|VPC | | |
|10.106.0.0/20 ------------- |
| | PC 1 | |
----------------- | VPN Client/ | |
| DO Droplet 2 | | VPN Gateway | |
| (Ubuntu 20.04) | | (CentOS 7) | |
| VPN Access | ------------- |
----------------- |
------------- |
| PC 2 | |
| VPN Access |--
| (Windows 10)|
-------------
So, I have to use either DO’s DNS servers or publicly accessible servers (e.g. OpenDNS, Google, etc.).
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