Briefly, how to block outside dns (leak) using Network Manager configuration files or the GUI? networking 18.04 network-manager dns vpn. share | improve this question | follow | edited Aug 15 '18 at 12:56. Pobe. asked Aug 15 '18 at 12:47. Pobe Pobe. 170 1 1 gold badge 1 1 silver badge 11 11 bronze badges. block-outside-vpn typically is only a Windows OpenVPN connection option. Fixing the DNS 10/11/2017 DEFINE_GUID (OPENVPN_BLOCK_OUTSIDE_DNS_SUBLAYER, 0x2f660d7e, 0x6a37, 0x11e6, 0xa1, 0x81, 0x00, 0x1e, 0x8c, 0x6e, 0x04, 0xa2) VOID NETIOAPI_API_ InitializeIpInterfaceEntry (PMIB_IPINTERFACE_ROW Row) static void default_msg_handler (DWORD err, const char *msg) static DWORD add_sublayer (GUID uuid) DWORD Re: [Openvpn-devel] block-outside-dns and persist-tun Re: [Openvpn-devel] block-outside-dns and persist-tun From: ValdikSS - 2017-06-04 07:11:55 And for Windows users (OpenVPN +2.3.9) : block-outside-dns. share | improve this answer | follow | edited Jun 11 at 14:16. Community ♦ 1. answered Mar 9 '19 at 20:29. Soheyl Soheyl. 101 3 3 bronze badges. add a comment | Your Answer Thanks for contributing an answer to Unix & Linux Stack Exchange! Please be sure to answer the question. Provide details and share your research! But avoid I tried enabling the "block-outside-dns" on two tunnels that i normally have running in parallel and i get no DNS resolves at all. Disabling it for one tunnel enabled DNS again but only for that tunnel, as expected. I was expecting this to work so that both tunnels DNS servers would work, or at least one of them and that no leaks would appear on the native interface. Attachments (1) Capture

Dec 9, 2018 My DNS server address on the Pi-Hole is 127.0.0.1#5053. PiHole with OpenVPN the easy way — use PiVPN DNS 1.0.0.1" # Prevent DNS leaks on Windows push "block-outside-dns" # Override the Client default gateway 

16/04/2020 I want to set path for client rsa files. but get this error: Options error: Unrecognized option or missing or extra parameter(s) in client3.ovpn:3: ca (2.4.7) the config file: client tls-cl 07/03/2019 If you’re using an OpenVPN client on Windows 10 and you use the block-outside-dns option to prevent DNS leaks then you may experience some serious connection delays. The easiest way to fix the block-outside-dns connection issue is through the Network and Sharing Center, here’s how to do it:

Re: [Openvpn-devel] block-outside-dns and persist-tun Re: [Openvpn-devel] block-outside-dns and persist-tun From: ValdikSS - 2017-06-04 07:11:55

Hello, On a Windows 7 laptop, openvpn client 2.3.10 with "block-outside-dns" option enabled interferes with Microsoft NCSI active probing. As a result, after seconds of establishing the tunnel, Windows assumes there is no Internet connectivity on the (or .ovpn) file for the server that you are connecting to and add the following on a new line. For more information see the OpenVPN manual. block-outside-dns. OpenVPN 2.3.9 introduced the "block-outside-dns" command as a method to prevent DNS leaks under Windows by blocking access to VPN servers through  To fix this either remove block-outside-dns or use DNS server addresses Is there a way to force the client to ignore the "block-outside-dns" config pushed by Further questions on this is better handled in the openvpn-users mailing list. Push block-outside-dns (DNS leak/Windows 10). Post by TitianRob16 » Tue Jul 05, 2016 12:42 pm. Hi all, Firstly, you'll have to forgive me as I've never used  May 2, 2017 If you're using an OpenVPN client on Windows 10 and you use the block-outside- dns option to prevent DNS leaks then you may experience  Nov 10, 2017 2017-11-11 02:45:31 Options error: Unrecognized option or missing parameter (s) in [PUSH-OPTIONS]:1: block-outside-dns (2.3.18) and my 

Nov 10, 2017 2017-11-11 02:45:31 Options error: Unrecognized option or missing parameter (s) in [PUSH-OPTIONS]:1: block-outside-dns (2.3.18) and my 

Blocking DNS Queries to External Resolvers¶. This procedure will allow the firewall to block DNS requests to servers that are off this network. This can force DNS requests from local clients to use the DNS Forwarder or Resolver on pfSense® for resolution. This behaviour introduces significant delay when block-outside-dns is in use. Fortunately, setting low metric for the TAP interface solves this issue, making Windows always pick with TAP adapter first. I made a patch to lower interface metric when --block-outside-dns is … He configured OpenVPN TCP without persist-tun on the > client side and pushes block-outside-dns from server. > > When he restarts OpenVPN server, DNS no longer works on the clients. > Neither with or without VPN. Users say this can be fixed only with > rebooting, I believe restarting service would help too. > Is this only with 2.4.2 or is 2.4.1 When used with –client or –pull, accept options pushed by server EXCEPT for routes, block-outside-dns and dhcp options like DNS servers.When used on the client, this option effectively bars the server from adding routes to the client’s routing table, however note that this option still allows the server to set the TCP/IP properties of the client’s TUN/TAP interface.

03/05/2016

Re: [Openvpn-devel] block-outside-dns and persist-tun Re: [Openvpn-devel] block-outside-dns and persist-tun From: ValdikSS - 2017-06-04 07:11:55 The block-outside-dns is a Windows specific option:--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. DEFINE_GUID (OPENVPN_BLOCK_OUTSIDE_DNS_SUBLAYER, 0x2f660d7e, 0x6a37, 0x11e6, 0xa1, 0x81, 0x00, 0x1e, 0x8c, 0x6e, 0x04, 0xa2) VOID NETIOAPI_API_ InitializeIpInterfaceEntry (PMIB_IPINTERFACE_ROW Row) static void default_msg_handler (DWORD err, const char *msg) static DWORD add_sublayer (GUID uuid) DWORD It uses Windows Filtering Platform (WFP) and works on >> Windows Vista or later. >> >> --block-outside-dns is not an openvpn directive it cannot be used in >> a >> config file as such. > At least as I understood it, it is. Ahh .. it is not ' push "set [Openvpn-devel] [PATCH v9-master] Add Windows DNS Leak fix using WFP ('block-outside-dns') [Openvpn-devel] [PATCH v9-master] Add Windows DNS Leak fix using WFP ('block-outside-dns') From: ValdikSS - 2015-12-10 20:52:10 OpenVPN src; openvpn; block_dns.c. Go to the documentation of this file. 1 /* 2 * OpenVPN -- An application to securely tunnel IP networks. 3 * over a single TCP/UDP port, with support for SSL/TLS-based. 4 * session authentication and key exchange, 5 * p Add Windows DNS Leak fix using WFP ('block-outside-dns') This option blocks all out-of-tunnel communication on TCP/UDP port 53 (except for OpenVPN itself), preventing DNS Leaks on Windows 8.1 and 10.