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Re: OpenVPN dhcp



On Fri, 2018-07-27 at 14:52 -0400, Roberto C. Sánchez wrote:
> The short answer is, "as long as you use NetworkManager, no."
> 
> I no longer have the link, but some time ago I found a page that
> explains it very clearly.
> 
> Search terms: "openvpn networkmanager dns leak"
> 
> Effectively, NetworkManager lacks a concept of "replace the active
> DNS settings when this connection becomes active."  Instead, what it
> does is add the DNS servers to those already listed.  There is
> supposed to be a way to specify the IPv4 DNS servers (you can do this
> in the NM gui), then you set the IPv4 DNS priority to -1 (meaning
> clear everything else out and use these instead) by editing the text
> configuration file.
> 
> The problems with that, though, are the result of the -1 priority
> appears to prevent any other connection from having IPv4 DNS servers
> in resolv.conf.  That may or may not be a problem for you.  That
> approach also prevents you from taking advantage of DHCP push of DNS
> servers from the VPN server.
> 
> I have seen some bugs requesting that they fix it, and even a commit
> that might be what you are asking for.  However, I don't know when it
> might make its way into a Debian stable release (or even unstable).
> 

Roberto, thanks for the insight and recommendation, based on your
search suggestion I found the solution here:

https://bugs.launchpad.net/ubuntu/+source/openvpn/+bug/1211110/comments
/92

-Jim P.


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