Hi ----- Original Message ----- From: "Sebastian Rubenstein" <asdf123...@gmx.com> To: <openvpn-users@lists.sourceforge.net> Sent: Friday, December 18, 2015 4:58 PM Subject: [Openvpn-users] How exactly does setting the option "block-outside-dns" help for Linux and BSD users?
> Suppose I use Linux or BSD as my primary OS and if I add the following > line to my config file: > > setenv opt block-outside-dns > > How exactly will doing the above help me to prevent DNS leaks? (Based on > my rudimentary knowledge of Linux and BSD systems, DNS leaks only occur on > Microsoft Windows OSes. Linux and BSD systems never do have problems with > DNS leaks.) > > Some clarifications and explanations from the experts here would be most > helpful. > This option does not have any effect on Linux or BSD (other than to set an environment variable) $ man openvpn: <..> +.B \-\-block\-outside\-dns +Block DNS servers on other network adapters to prevent +DNS leaks. This option prevents any application from accessing +TCP or UDP port 53 except one inside the tunnel. It uses +Windows Filtering Platform (WFP) and works on Windows Vista or +later. Regards ------------------------------------------------------------------------------ _______________________________________________ Openvpn-users mailing list Openvpn-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/openvpn-users
