how are you going to resolve a) host.example.com resolves in multiple "A" records b) host.example.com resolves in both "AAAA" and "A" records
? 2016-05-11 20:41 GMT+05:00 Paul Garnier <paul.garni...@gmail.com>: > Hello, > > > I’m actually trying to add an option in openvpn which will allow the > client to connect to the server with the lowest latency in his remote list. > For now there are only two options to choose between servers : “ > *--remote-random*” which randomize the order of the address list, the > default one which will try the hosts in the order of the config file, and I > want to add a 3rd one. To start I want to do it for udp and unix servers > and clients. > > > I’m a beginner in things like this so I started very simply : I wrote a > little program in C to ping a host:port using udp but I can’t get an answer > from an openvpn server. The only way I found to get an answer was to make > the packet I send look like the start of a TLS transaction, but because of > the TLS processing I can only get the first ping right, after it takes way > too long to come back to be accurate. > > > So I started digging in the source code to find where my packet is > thrown away and why I don’t get any answer (even an error message would be > enough). I’ve found how a “normal” packet is sent but what I want is the > latency with the server, not in the tunnel. I don’t want to establish a > connection to test my link with each server and, how I understand it, if I > want use function like *encrypt_sign*() so my packet is recognized I need > to have a tunnel set. I can’t replicate how the existing *ping *and *occ > *packets > are sent. > > > What I would like to know is : > > > - where my packet is processed and rejected ? > > - why I don't get any answer at all nor an error message on my server ? > > - is there a major issue making what I want to do impossible ? > > Kind regards, > > > Paul Garnier > > > ------------------------------------------------------------------------------ > Mobile security can be enabling, not merely restricting. Employees who > bring their own devices (BYOD) to work are irked by the imposition of MDM > restrictions. Mobile Device Manager Plus allows you to control only the > apps on BYO-devices by containerizing them, leaving personal data > untouched! > https://ad.doubleclick.net/ddm/clk/304595813;131938128;j > _______________________________________________ > Openvpn-devel mailing list > Openvpn-devel@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/openvpn-devel > >
