"Checking DNS Failed" Error on Ubuntu 18.10

[elisimmer 0]

I've been using AirVPN and Eddie on Xubuntu 18.04 for a couple months now with no issues. However, a couple days ago I upgraded to Xubuntu 18.10 and have since been experiencing constant "Checking DNS Failed" errors while Eddie attempts new connections. I've found this issues in the forums, but haven't been able to solve it and need some help.

What happened:
-Eddie was working in Xubuntu 18.04 and this issue began after upgrading to 18.10

-I was connected to the VPN with Eddie while doing the system upgrade

-I currently have no network issues with Eddie disabled

Things I've tried:

- Disabling DNS Checks in Eddie. This results in a faulty internet connection where I cannot load webpages in my browser.

- Using the Eddie generated resolv.conf file, and deleting it to have a new one generated. Not sure how this works, but I definitely had one generated by the system and one from Eddie, neither of which solved any issues.

-Disabled IPv6, which made no difference.

 

Here is my most recent log. Apologies if this isn't the most convenient formatting, first forum post.

 

. 2018.11.25 10:14:55 - Eddie version: 2.16.3 / linux_x64, System: Linux, Name: Ubuntu 18.10 \n \l, Version: Linux hax 4.18.0-11-generic #12-Ubuntu SMP Tue Oct 23 19:22:37 UTC 2018 x86_64 x86_64 x86_64 GNU/Linux, Mono/.Net: 4.6.2 (Debian 4.6.2.7+dfsg-1ubuntu1); Framework: v4.0.30319
. 2018.11.25 10:14:55 - Reading options from /home/eli/.airvpn/default.xml
. 2018.11.25 10:14:55 - Command line arguments (5): path="/home/eli/.airvpn" path.resources="/usr/share/eddie-ui" path.exec="/usr/bin/eddie-ui" console.mode="none" linux.dbus="unix:path=/run/user/1000/bus"
. 2018.11.25 10:14:55 - Profile path: /home/eli/.airvpn/default.xml
. 2018.11.25 10:14:56 - OpenVPN Driver - Found, /dev/net/tun
. 2018.11.25 10:14:56 - OpenVPN - Version: 2.4.6 - OpenSSL 1.1.1 11 Sep 2018, LZO 2.10 (/usr/sbin/openvpn)
. 2018.11.25 10:14:56 - SSH - Version: OpenSSH_7.7p1 Ubuntu-4, OpenSSL 1.0.2n 7 Dec 2017 (/usr/bin/ssh)
. 2018.11.25 10:14:56 - SSL - Version: stunnel 5.44 (/usr/bin/stunnel4)
. 2018.11.25 10:14:56 - curl - Version: 7.61.0 (/usr/bin/curl)
. 2018.11.25 10:14:56 - Certification Authorities: /usr/share/eddie-ui/cacert.pem
. 2018.11.25 10:14:56 - Updating systems & servers data ...
W 2018.11.25 10:14:56 - Special Black Friday deal on AirVPN now! Save up to 67.5%
I 2018.11.25 10:14:57 - Session starting.
. 2018.11.25 10:14:57 - Systems & servers data update completed
I 2018.11.25 10:15:02 - Checking authorization ...
! 2018.11.25 10:15:02 - Connecting to Rana (Canada, Toronto, Ontario)
. 2018.11.25 10:15:03 - OpenVPN > OpenVPN 2.4.6 x86_64-pc-linux-gnu [sSL (OpenSSL)] [LZO] [LZ4] [EPOLL] [PKCS11] [MH/PKTINFO] [AEAD] built on Sep 3 2018
. 2018.11.25 10:15:03 - OpenVPN > library versions: OpenSSL 1.1.1 11 Sep 2018, LZO 2.10
. 2018.11.25 10:15:03 - Connection to OpenVPN Management Interface
. 2018.11.25 10:15:03 - OpenVPN > MANAGEMENT: TCP Socket listening on [AF_INET]127.0.0.1:3100
. 2018.11.25 10:15:03 - OpenVPN > Outgoing Control Channel Authentication: Using 160 bit message hash 'SHA1' for HMAC authentication
. 2018.11.25 10:15:03 - OpenVPN > Incoming Control Channel Authentication: Using 160 bit message hash 'SHA1' for HMAC authentication
. 2018.11.25 10:15:03 - OpenVPN > TCP/UDP: Preserving recently used remote address: [AF_INET]199.19.94.132:443
. 2018.11.25 10:15:03 - OpenVPN > Socket Buffers: R=[87380->87380] S=[16384->16384]
. 2018.11.25 10:15:03 - OpenVPN > Attempting to establish TCP connection with [AF_INET]199.19.94.132:443 [nonblock]
. 2018.11.25 10:15:03 - OpenVPN > MANAGEMENT: Client connected from [AF_INET]127.0.0.1:3100
. 2018.11.25 10:15:04 - OpenVPN > TCP connection established with [AF_INET]199.19.94.132:443
. 2018.11.25 10:15:04 - OpenVPN > TCP_CLIENT link local: (not bound)
. 2018.11.25 10:15:04 - OpenVPN > TCP_CLIENT link remote: [AF_INET]199.19.94.132:443
. 2018.11.25 10:15:04 - OpenVPN > TLS: Initial packet from [AF_INET]199.19.94.132:443, sid=781deaed 146a81fd
. 2018.11.25 10:15:04 - OpenVPN > VERIFY OK: depth=1, C=IT, ST=IT, L=Perugia, O=airvpn.org, CN=airvpn.org CA, emailAddress=info@airvpn.org
. 2018.11.25 10:15:04 - OpenVPN > VERIFY KU OK
. 2018.11.25 10:15:04 - OpenVPN > Validating certificate extended key usage
. 2018.11.25 10:15:04 - OpenVPN > ++ Certificate has EKU (str) TLS Web Server Authentication, expects TLS Web Server Authentication
. 2018.11.25 10:15:04 - OpenVPN > VERIFY EKU OK
. 2018.11.25 10:15:04 - OpenVPN > VERIFY OK: depth=0, C=IT, ST=IT, L=Perugia, O=airvpn.org, CN=server, emailAddress=info@airvpn.org
. 2018.11.25 10:15:04 - OpenVPN > Control Channel: TLSv1.2, cipher TLSv1.2 DHE-RSA-AES256-GCM-SHA384, 4096 bit RSA
. 2018.11.25 10:15:04 - OpenVPN > [server] Peer Connection Initiated with [AF_INET]199.19.94.132:443
. 2018.11.25 10:15:05 - OpenVPN > SENT CONTROL [server]: 'PUSH_REQUEST' (status=1)
. 2018.11.25 10:15:05 - OpenVPN > PUSH: Received control message: 'PUSH_REPLY,comp-lzo no,redirect-gateway ipv6 def1 bypass-dhcp,dhcp-option DNS 10.27.205.1,dhcp-option DNS6 fde6:7a:7d20:17cd::1,tun-ipv6,route-gateway 10.27.205.1,topology subnet,ping 10,ping-restart 60,ifconfig-ipv6 fde6:7a:7d20:17cd::107e/64 fde6:7a:7d20:17cd::1,ifconfig 10.27.205.128 255.255.255.0,peer-id 0,cipher AES-256-GCM'
. 2018.11.25 10:15:05 - OpenVPN > Pushed option removed by filter: 'redirect-gateway ipv6 def1 bypass-dhcp'
. 2018.11.25 10:15:05 - OpenVPN > Pushed option removed by filter: 'dhcp-option DNS6 fde6:7a:7d20:17cd::1'
. 2018.11.25 10:15:05 - OpenVPN > Pushed option removed by filter: 'tun-ipv6'
. 2018.11.25 10:15:05 - OpenVPN > Pushed option removed by filter: 'ifconfig-ipv6 fde6:7a:7d20:17cd::107e/64 fde6:7a:7d20:17cd::1'
. 2018.11.25 10:15:05 - OpenVPN > OPTIONS IMPORT: timers and/or timeouts modified
. 2018.11.25 10:15:05 - OpenVPN > OPTIONS IMPORT: compression parms modified
. 2018.11.25 10:15:05 - OpenVPN > OPTIONS IMPORT: --ifconfig/up options modified
. 2018.11.25 10:15:05 - OpenVPN > OPTIONS IMPORT: route-related options modified
. 2018.11.25 10:15:05 - OpenVPN > OPTIONS IMPORT: --ip-win32 and/or --dhcp-option options modified
. 2018.11.25 10:15:05 - OpenVPN > OPTIONS IMPORT: peer-id set
. 2018.11.25 10:15:05 - OpenVPN > OPTIONS IMPORT: adjusting link_mtu to 1627
. 2018.11.25 10:15:05 - OpenVPN > OPTIONS IMPORT: data channel crypto options modified
. 2018.11.25 10:15:05 - OpenVPN > Data Channel: using negotiated cipher 'AES-256-GCM'
. 2018.11.25 10:15:05 - OpenVPN > Outgoing Data Channel: Cipher 'AES-256-GCM' initialized with 256 bit key
. 2018.11.25 10:15:05 - OpenVPN > Incoming Data Channel: Cipher 'AES-256-GCM' initialized with 256 bit key
. 2018.11.25 10:15:05 - OpenVPN > ROUTE_GATEWAY 10.0.0.1/255.255.255.0 IFACE=wlo1 HWADDR=74:29:af:6c:45:8e
. 2018.11.25 10:15:05 - OpenVPN > TUN/TAP device tun0 opened
. 2018.11.25 10:15:05 - OpenVPN > TUN/TAP TX queue length set to 100
. 2018.11.25 10:15:05 - OpenVPN > do_ifconfig, tt->did_ifconfig_ipv6_setup=0
. 2018.11.25 10:15:05 - OpenVPN > /sbin/ip link set dev tun0 up mtu 1500
. 2018.11.25 10:15:05 - OpenVPN > /sbin/ip addr add dev tun0 10.27.205.128/24 broadcast 10.27.205.255
. 2018.11.25 10:15:11 - OpenVPN > /sbin/ip route add 199.19.94.132/32 via 10.0.0.1
. 2018.11.25 10:15:11 - OpenVPN > /sbin/ip route add 0.0.0.0/1 via 10.27.205.1
. 2018.11.25 10:15:11 - OpenVPN > /sbin/ip route add 128.0.0.0/1 via 10.27.205.1
. 2018.11.25 10:15:11 - /etc/resolv.conf moved to /etc/resolv.conf.eddie as backup
. 2018.11.25 10:15:11 - DNS of the system updated to VPN DNS (Rename method: /etc/resolv.conf generated)
. 2018.11.25 10:15:11 - Routes, added a new route, 199.19.94.135 for gateway 10.27.205.1
. 2018.11.25 10:15:11 - Unable to compute route for 2604:6880:c713:5e84:a4ee:64a5:d8f2:e5c0: IPv6 VPN gateway not available.
. 2018.11.25 10:15:11 - Flushing DNS
I 2018.11.25 10:15:16 - Checking route IPv4
I 2018.11.25 10:15:17 - Checking DNS
. 2018.11.25 10:15:18 - Checking DNS failed:
. 2018.11.25 10:15:18 - Checking DNS (2° try)
. 2018.11.25 10:15:19 - Checking DNS failed:
. 2018.11.25 10:15:19 - Checking DNS (3° try)
. 2018.11.25 10:15:22 - Checking DNS failed:
E 2018.11.25 10:15:22 - Checking DNS failed.
. 2018.11.25 10:15:22 - OpenVPN > Initialization Sequence Completed
! 2018.11.25 10:15:22 - Disconnecting
. 2018.11.25 10:15:22 - Routes, removed a route previously added, 199.19.94.135 for gateway 10.27.205.1
. 2018.11.25 10:15:22 - Sending management termination signal
. 2018.11.25 10:15:22 - Management - Send 'signal SIGTERM'
. 2018.11.25 10:15:22 - OpenVPN > MANAGEMENT: CMD 'signal SIGTERM'
. 2018.11.25 10:15:22 - OpenVPN > /sbin/ip route del 199.19.94.132/32
. 2018.11.25 10:15:22 - OpenVpn Management > SUCCESS: signal SIGTERM thrown
. 2018.11.25 10:15:22 - OpenVPN > /sbin/ip route del 0.0.0.0/1
. 2018.11.25 10:15:22 - OpenVPN > /sbin/ip route del 128.0.0.0/1
. 2018.11.25 10:15:22 - OpenVPN > Closing TUN/TAP interface
. 2018.11.25 10:15:22 - OpenVPN > /sbin/ip addr del dev tun0 10.27.205.128/24
. 2018.11.25 10:15:22 - OpenVPN > SIGTERM[hard,] received, process exiting
. 2018.11.25 10:15:22 - Connection terminated.
. 2018.11.25 10:15:22 - DNS of the system restored to original settings (Rename method)
I 2018.11.25 10:15:25 - Checking authorization ...
! 2018.11.25 10:15:25 - Connecting to Sharatan (Canada, Toronto, Ontario)
. 2018.11.25 10:15:25 - OpenVPN > OpenVPN 2.4.6 x86_64-pc-linux-gnu [sSL (OpenSSL)] [LZO] [LZ4] [EPOLL] [PKCS11] [MH/PKTINFO] [AEAD] built on Sep 3 2018
. 2018.11.25 10:15:25 - OpenVPN > library versions: OpenSSL 1.1.1 11 Sep 2018, LZO 2.10
. 2018.11.25 10:15:25 - Connection to OpenVPN Management Interface
. 2018.11.25 10:15:25 - OpenVPN > MANAGEMENT: TCP Socket listening on [AF_INET]127.0.0.1:3100
. 2018.11.25 10:15:25 - OpenVPN > Outgoing Control Channel Authentication: Using 160 bit message hash 'SHA1' for HMAC authentication
. 2018.11.25 10:15:25 - OpenVPN > Incoming Control Channel Authentication: Using 160 bit message hash 'SHA1' for HMAC authentication
. 2018.11.25 10:15:25 - OpenVPN > TCP/UDP: Preserving recently used remote address: [AF_INET]104.254.90.194:443
. 2018.11.25 10:15:25 - OpenVPN > Socket Buffers: R=[87380->87380] S=[16384->16384]
. 2018.11.25 10:15:25 - OpenVPN > Attempting to establish TCP connection with [AF_INET]104.254.90.194:443 [nonblock]
. 2018.11.25 10:15:26 - OpenVPN > MANAGEMENT: Client connected from [AF_INET]127.0.0.1:3100
. 2018.11.25 10:15:27 - OpenVPN > TCP connection established with [AF_INET]104.254.90.194:443
. 2018.11.25 10:15:27 - OpenVPN > TCP_CLIENT link local: (not bound)
. 2018.11.25 10:15:27 - OpenVPN > TCP_CLIENT link remote: [AF_INET]104.254.90.194:443
. 2018.11.25 10:15:27 - OpenVPN > TLS: Initial packet from [AF_INET]104.254.90.194:443, sid=9febe700 2f4d67e8
. 2018.11.25 10:15:27 - OpenVPN > VERIFY OK: depth=1, C=IT, ST=IT, L=Perugia, O=airvpn.org, CN=airvpn.org CA, emailAddress=info@airvpn.org
. 2018.11.25 10:15:27 - OpenVPN > VERIFY KU OK
. 2018.11.25 10:15:27 - OpenVPN > Validating certificate extended key usage
. 2018.11.25 10:15:27 - OpenVPN > ++ Certificate has EKU (str) TLS Web Server Authentication, expects TLS Web Server Authentication
. 2018.11.25 10:15:27 - OpenVPN > VERIFY EKU OK
. 2018.11.25 10:15:27 - OpenVPN > VERIFY OK: depth=0, C=IT, ST=IT, L=Perugia, O=airvpn.org, CN=server, emailAddress=info@airvpn.org
. 2018.11.25 10:15:27 - OpenVPN > Control Channel: TLSv1.2, cipher TLSv1.2 DHE-RSA-AES256-GCM-SHA384, 4096 bit RSA
. 2018.11.25 10:15:27 - OpenVPN > [server] Peer Connection Initiated with [AF_INET]104.254.90.194:443
. 2018.11.25 10:15:28 - OpenVPN > SENT CONTROL [server]: 'PUSH_REQUEST' (status=1)
. 2018.11.25 10:15:28 - OpenVPN > PUSH: Received control message: 'PUSH_REPLY,comp-lzo no,redirect-gateway ipv6 def1 bypass-dhcp,dhcp-option DNS 10.29.253.1,dhcp-option DNS6 fde6:7a:7d20:19fd::1,tun-ipv6,route-gateway 10.29.253.1,topology subnet,ping 10,ping-restart 60,ifconfig-ipv6 fde6:7a:7d20:19fd::1089/64 fde6:7a:7d20:19fd::1,ifconfig 10.29.253.139 255.255.255.0,peer-id 0,cipher AES-256-GCM'
. 2018.11.25 10:15:28 - OpenVPN > Pushed option removed by filter: 'redirect-gateway ipv6 def1 bypass-dhcp'
. 2018.11.25 10:15:28 - OpenVPN > Pushed option removed by filter: 'dhcp-option DNS6 fde6:7a:7d20:19fd::1'
. 2018.11.25 10:15:28 - OpenVPN > Pushed option removed by filter: 'tun-ipv6'
. 2018.11.25 10:15:28 - OpenVPN > Pushed option removed by filter: 'ifconfig-ipv6 fde6:7a:7d20:19fd::1089/64 fde6:7a:7d20:19fd::1'
. 2018.11.25 10:15:28 - OpenVPN > OPTIONS IMPORT: timers and/or timeouts modified
. 2018.11.25 10:15:28 - OpenVPN > OPTIONS IMPORT: compression parms modified
. 2018.11.25 10:15:28 - OpenVPN > OPTIONS IMPORT: --ifconfig/up options modified
. 2018.11.25 10:15:28 - OpenVPN > OPTIONS IMPORT: route-related options modified
. 2018.11.25 10:15:28 - OpenVPN > OPTIONS IMPORT: --ip-win32 and/or --dhcp-option options modified
. 2018.11.25 10:15:28 - OpenVPN > OPTIONS IMPORT: peer-id set
. 2018.11.25 10:15:28 - OpenVPN > OPTIONS IMPORT: adjusting link_mtu to 1627
. 2018.11.25 10:15:28 - OpenVPN > OPTIONS IMPORT: data channel crypto options modified
. 2018.11.25 10:15:28 - OpenVPN > Data Channel: using negotiated cipher 'AES-256-GCM'
. 2018.11.25 10:15:28 - OpenVPN > Outgoing Data Channel: Cipher 'AES-256-GCM' initialized with 256 bit key
. 2018.11.25 10:15:28 - OpenVPN > Incoming Data Channel: Cipher 'AES-256-GCM' initialized with 256 bit key
. 2018.11.25 10:15:28 - OpenVPN > ROUTE_GATEWAY 10.0.0.1/255.255.255.0 IFACE=wlo1 HWADDR=74:29:af:6c:45:8e
. 2018.11.25 10:15:28 - OpenVPN > TUN/TAP device tun0 opened
. 2018.11.25 10:15:28 - OpenVPN > TUN/TAP TX queue length set to 100
. 2018.11.25 10:15:28 - OpenVPN > do_ifconfig, tt->did_ifconfig_ipv6_setup=0
. 2018.11.25 10:15:28 - OpenVPN > /sbin/ip link set dev tun0 up mtu 1500
. 2018.11.25 10:15:28 - OpenVPN > /sbin/ip addr add dev tun0 10.29.253.139/24 broadcast 10.29.253.255
. 2018.11.25 10:15:33 - OpenVPN > /sbin/ip route add 104.254.90.194/32 via 10.0.0.1
. 2018.11.25 10:15:33 - OpenVPN > /sbin/ip route add 0.0.0.0/1 via 10.29.253.1
. 2018.11.25 10:15:33 - OpenVPN > /sbin/ip route add 128.0.0.0/1 via 10.29.253.1
. 2018.11.25 10:15:33 - /etc/resolv.conf moved to /etc/resolv.conf.eddie as backup
. 2018.11.25 10:15:33 - DNS of the system updated to VPN DNS (Rename method: /etc/resolv.conf generated)
. 2018.11.25 10:15:33 - Routes, added a new route, 104.254.90.195 for gateway 10.29.253.1
. 2018.11.25 10:15:33 - Unable to compute route for 2606:6080:2001:6:e14e:c3f3:8562:6916: IPv6 VPN gateway not available.
. 2018.11.25 10:15:33 - Flushing DNS
I 2018.11.25 10:15:34 - Checking route IPv4
I 2018.11.25 10:15:35 - Checking DNS
. 2018.11.25 10:15:35 - Checking DNS failed:
. 2018.11.25 10:15:35 - Checking DNS (2° try)
. 2018.11.25 10:15:37 - Checking DNS failed:
. 2018.11.25 10:15:37 - Checking DNS (3° try)
. 2018.11.25 10:15:39 - Checking DNS failed:
E 2018.11.25 10:15:39 - Checking DNS failed.
. 2018.11.25 10:15:39 - OpenVPN > Initialization Sequence Completed
! 2018.11.25 10:15:39 - Disconnecting
. 2018.11.25 10:15:39 - Routes, removed a route previously added, 104.254.90.195 for gateway 10.29.253.1
. 2018.11.25 10:15:39 - Sending management termination signal
. 2018.11.25 10:15:39 - Management - Send 'signal SIGTERM'
. 2018.11.25 10:15:40 - OpenVPN > MANAGEMENT: CMD 'signal SIGTERM'
. 2018.11.25 10:15:40 - OpenVPN > /sbin/ip route del 104.254.90.194/32
. 2018.11.25 10:15:40 - OpenVPN > /sbin/ip route del 0.0.0.0/1
. 2018.11.25 10:15:40 - OpenVPN > /sbin/ip route del 128.0.0.0/1
. 2018.11.25 10:15:40 - OpenVPN > Closing TUN/TAP interface
. 2018.11.25 10:15:40 - OpenVPN > /sbin/ip addr del dev tun0 10.29.253.139/24
. 2018.11.25 10:15:40 - OpenVPN > SIGTERM[hard,] received, process exiting
. 2018.11.25 10:15:40 - Connection terminated.
. 2018.11.25 10:15:40 - DNS of the system restored to original settings (Rename method)
I 2018.11.25 10:15:42 - Cancel requested.
! 2018.11.25 10:15:42 - Session terminated.

 

Thanks for the help

 

EDIT Dec 7 : Reformatted log as spoiler

[OpenSourcerer 1435]

W 2018.11.25 10:14:56 - Special Black Friday deal on AirVPN now! Save up to 67.5%

 

Classified as a warning? Really, AirVPN?

 

From Ubuntu 18.04+, systemd-resolved is used for DNS resolution. It doesn't always work as intended with Eddie, or Eddie with it.

What I would do is to create an additional network profile for your interface and define 10.4.0.1 as your DNS server, leaving everything else on DHCP. It guarantees that systemd-resolved updates the DNS servers accordingly. Then disable DNS switching in Eddie altogether. That way you never rely on something you can't control.