On 06/12/2023 11:09, Jason Long via Openvpn-users wrote:
Hello,
Suppose the OpenVPN server is located in another country, but the DNS server is
inside the company. What options should be included in the server and client
configuration file?
Thank you.
For OpenVPN 2.6 and newer, the new --dns option is preferred.
For OpenVPN 2.5 and older, use --dhcp-option.
If you operate in a mixed environment with clients running both 2.5 and
2.6, you can push both --dns and --dhcp-option from the server to
clients (via --push). And once all your client is updated to 2.6,
remove the --dhcp-option.
The reason for preferring --dns is that it should have a consistent
behavior across platforms. The --dhcp-option has several corner cases
where it does slightly different things depending on if you're on
Windows, macOS or Linux. *BSD and some Linux setups will not do the DNS
setup out-of-the-box and will require additional script hooks to be
enabled (the exception is when starting VPN sessions via
NetworkManager). Hosts running OpenVPN 3 Linux will get DNS setup
out-of-the-box, and that should support the --dns option as well.
--
kind regards,
David Sommerseth
OpenVPN Inc
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