cyberghost unable to keep the connection established.

[ghost]

I have started some tests with gluetun today, but I am facing some issues.
The VPN is established for a few seconds, then I get a signal kill and it is unable to re-establish. See below the logs:

2021/07/16 14:27:53 INFO openvpn: UDP link local: (not bound)                                                                                                                                                                                                                             
2021/07/16 14:27:53 INFO openvpn: UDP link remote: [AF_INET]195.78.54.19:443                                                                                                                                                                                                              
2021/07/16 14:27:53 WARN openvpn: 'link-mtu' is used inconsistently, local='link-mtu 1569', remote='link-mtu 1549'                                                                                                                                                                        
2021/07/16 14:27:53 WARN openvpn: 'auth' is used inconsistently, local='auth SHA256', remote='auth [null-digest]'                                                                                                                                                                         
2021/07/16 14:27:53 WARN openvpn: 'keysize' is used inconsistently, local='keysize 256', remote='keysize 128'                                                                                                                                                                             
2021/07/16 14:27:53 INFO openvpn: [amsterdam-rack404.nodes.gen4.ninja] Peer Connection Initiated with [AF_INET]195.78.54.19:443                                                                                                                                                           
2021/07/16 14:27:54 INFO openvpn: sitnl_send: rtnl: generic error (-101): Network unreachable                                                                                                                                                                                             
2021/07/16 14:27:54 INFO openvpn: TUN/TAP device tun0 opened                                                                                                                                                                                                                              
2021/07/16 14:27:54 INFO openvpn: /sbin/ip link set dev tun0 up mtu 1500                                                                                                                                                                                                                  
2021/07/16 14:27:54 INFO openvpn: /sbin/ip link set dev tun0 up                                                                                                                                                                                                                           
2021/07/16 14:27:54 INFO openvpn: /sbin/ip addr add dev tun0 10.203.12.118/24                                                                                                                                                                                                             
2021/07/16 14:27:59 WARN openvpn: OpenVPN was configured to add an IPv6 route. However, no IPv6 has been configured for tun0, therefore the route installation may fail or may not work as expected.                                                                                      
2021/07/16 14:27:59 INFO openvpn: add_route_ipv6(2000::/3 -> :: metric -1) dev tun0                                                                                                                                                                                                       
2021/07/16 14:27:59 INFO openvpn: Initialization Sequence Completed                                                                                                                                                                                                                       
2021/07/16 14:27:59 INFO VPN routing IP address: 84.17.47.110                                                                                                                                                                                                                             
2021/07/16 14:28:08 ERROR openvpn: signal: killed                                                                                                                                                                                                                                         
2021/07/16 14:28:08 INFO openvpn: retrying in 15s                                                                                                                                                                                                                                         
2021/07/16 14:28:16 WARN ip getter: Get "https://ipinfo.io/195.78.54.19": context deadline exceeded (Client.Timeout exceeded while awaiting headers)                                                                                                                                      
2021/07/16 14:28:16 INFO ip getter: Public IP address is 195.78.54.19                                                                                                                                                                                                                     
2021/07/16 14:28:23 INFO firewall: setting VPN connection through firewall...                                                                                                                                                                                                             
2021/07/16 14:28:23 INFO openvpn configurator: starting OpenVPN 2.5                                                                                                                                                                                                                       
2021/07/16 14:28:23 INFO openvpn: 2021-07-16 14:28:23 DEPRECATED OPTION: ncp-disable. Disabling cipher negotiation is a deprecated debug feature that will be removed in OpenVPN 2.6                                                                                                      
2021/07/16 14:28:23 INFO openvpn: OpenVPN 2.5.2 x86_64-alpine-linux-musl [SSL (OpenSSL)] [LZO] [LZ4] [EPOLL] [MH/PKTINFO] [AEAD] built on May  4 2021                                                                                                                                     
2021/07/16 14:28:23 INFO openvpn: library versions: OpenSSL 1.1.1k  25 Mar 2021, LZO 2.10                                                                                                                                                                                                 
2021/07/16 14:28:23 INFO openvpn: TCP/UDP: Preserving recently used remote address: [AF_INET]195.78.54.19:443                                                                                                                                                                             
2021/07/16 14:28:23 INFO openvpn: UDP link local: (not bound)                                                                                                                                                                                                                             
2021/07/16 14:28:23 INFO openvpn: UDP link remote: [AF_INET]195.78.54.19:443                                                                                                                                                                                                              
2021/07/16 14:28:24 WARN openvpn: 'link-mtu' is used inconsistently, local='link-mtu 1569', remote='link-mtu 1549'                                                                                                                                                                        
2021/07/16 14:28:24 WARN openvpn: 'auth' is used inconsistently, local='auth SHA256', remote='auth [null-digest]'                                                                                                                                                                         
2021/07/16 14:28:24 WARN openvpn: 'keysize' is used inconsistently, local='keysize 256', remote='keysize 128'                                                                                                                                                                             
2021/07/16 14:28:24 INFO openvpn: [amsterdam-rack404.nodes.gen4.ninja] Peer Connection Initiated with [AF_INET]195.78.54.19:443                                                                                                                                                           
2021/07/16 14:28:25 INFO openvpn: sitnl_send: rtnl: generic error (-101): Network unreachable                                                                                                                                                                                             
2021/07/16 14:28:25 INFO openvpn: TUN/TAP device tun0 opened                                                                                                                                                                                                                              
2021/07/16 14:28:25 INFO openvpn: /sbin/ip link set dev tun0 up mtu 1500                                                                                                                                                                                                                  
2021/07/16 14:28:25 INFO openvpn: /sbin/ip link set dev tun0 up                                                                                                                                                                                                                           
2021/07/16 14:28:25 INFO openvpn: /sbin/ip addr add dev tun0 10.203.12.118/24                                                                                                                                                                                                             
2021/07/16 14:28:30 ERROR openvpn: RTNETLINK answers: File exists                                                                                                                                                                                                                         
2021/07/16 14:28:30 INFO openvpn: ERROR: Linux route add command failed: external program exited with error status: 2                                                                                                                                                                     
2021/07/16 14:28:30 WARN openvpn: OpenVPN was configured to add an IPv6 route. However, no IPv6 has been configured for tun0, therefore the route installation may fail or may not work as expected.                                                                                      
2021/07/16 14:28:30 INFO openvpn: add_route_ipv6(2000::/3 -> :: metric -1) dev tun0                                                                                                                                                                                                       
2021/07/16 14:28:30 INFO openvpn: Initialization Sequence Completed                                                                                                                                                                                                                       
2021/07/16 14:28:30 INFO VPN routing IP address: 84.17.47.110                                                                                                                                                                                                                             
2021/07/16 14:28:39 ERROR openvpn: signal: killed                                                                                                                                                                                                                                         
2021/07/16 14:28:39 INFO openvpn: retrying in 15s                                                                                                                                                                                                                                         
2021/07/16 14:28:45 WARN ip getter: Get "https://ipinfo.io/195.78.54.19": context deadline exceeded (Client.Timeout exceeded while awaiting headers)                                                                                                                                      
2021/07/16 14:28:45 INFO ip getter: Public IP address is 195.78.54.19                                                                                                                                                                                                                     
2021/07/16 14:28:54 INFO firewall: setting VPN connection through firewall...                                                                                                                                                                                                             
2021/07/16 14:28:54 INFO openvpn configurator: starting OpenVPN 2.5                                                                                                                                                                                                                       
2021/07/16 14:28:54 INFO openvpn: 2021-07-16 14:28:54 DEPRECATED OPTION: ncp-disable. Disabling cipher negotiation is a deprecated debug feature that will be removed in OpenVPN 2.6                                                                                                      
2021/07/16 14:28:54 INFO openvpn: OpenVPN 2.5.2 x86_64-alpine-linux-musl [SSL (OpenSSL)] [LZO] [LZ4] [EPOLL] [MH/PKTINFO] [AEAD] built on May  4 2021                                                                                                                                     
2021/07/16 14:28:54 INFO openvpn: library versions: OpenSSL 1.1.1k  25 Mar 2021, LZO 2.10                                                                                                                                                                                                 
2021/07/16 14:28:54 INFO openvpn: TCP/UDP: Preserving recently used remote address: [AF_INET]195.78.54.110:443                                                                                                                                                                            
2021/07/16 14:28:54 INFO openvpn: UDP link local: (not bound)                                                                                                                                                                                                                             
2021/07/16 14:28:54 INFO openvpn: UDP link remote: [AF_INET]195.78.54.110:443                                                                                                                                                                                                             
2021/07/16 14:28:54 WARN openvpn: 'link-mtu' is used inconsistently, local='link-mtu 1569', remote='link-mtu 1549'                                                                                                                                                                        
2021/07/16 14:28:54 WARN openvpn: 'auth' is used inconsistently, local='auth SHA256', remote='auth [null-digest]'                                                                                                                                                                         
2021/07/16 14:28:54 WARN openvpn: 'keysize' is used inconsistently, local='keysize 256', remote='keysize 128'                                                                                                                                                                             
2021/07/16 14:28:54 INFO openvpn: [amsterdam-rack407.nodes.gen4.ninja] Peer Connection Initiated with [AF_INET]195.78.54.110:443                                                                                                                                                          
2021/07/16 14:28:56 INFO openvpn: sitnl_send: rtnl: generic error (-101): Network unreachable                                                                                                                                                                                             
2021/07/16 14:28:56 INFO openvpn: TUN/TAP device tun0 opened                                                                                                                                                                                                                              
2021/07/16 14:28:56 INFO openvpn: /sbin/ip link set dev tun0 up mtu 1500                                                                                                                                                                                                                  
2021/07/16 14:28:56 INFO openvpn: /sbin/ip link set dev tun0 up                                                                                                                                                                                                                           
2021/07/16 14:28:56 INFO openvpn: /sbin/ip addr add dev tun0 10.203.1.53/24      

and my docker-compose file:

version: "3.7"
services:
  gluetun:
    image: qmcgaw/gluetun
    container_name: gluetun
    cap_add:
      - NET_ADMIN
    devices:
      - /dev/net/tun:/dev/net/tun
    network_mode: bridge
    ports:
      - 8888:8888/tcp # HTTP proxy
      - 8388:8388/tcp # Shadowsocks
      - 8388:8388/udp # Shadowsocks
      - 8000:8000/tcp # Built-in HTTP control server
    # command:
    volumes:
      - /share/Data/Docker/Gluetun/config:/gluetun
    environment:
      # More variables are available, see the readme table
      - OPENVPN_USER=VthwTNBhVN
      - OPENVPN_PASSWORD=PPfb5e6KLL
      - VPNSP=cyberghost
      - PROTOCOL=udp
      - CYBERGHOST_GROUP=Premium UDP Europe
      - REGION=Netherlands
      - UID=1001
      - GID=100

      # Timezone for accurate logs times
      - TZ=Europe/Amsterdam
    restart: unless-stopped

[qdm12]

🤔 Not too sure. sitnl_send: rtnl: generic error (-101): Network unreachable looks sketchy. Also openvpn: signal: killed seems to indicate openvpn alone gets killed, maybe not enough memory or it conflicts with another VPN appliance?

1. Try without bind mounting - /dev/net/tun:/dev/net/tun?
2. What's the IP address 195.78.54.19? Is it your VPN one or yours? Because if it's yours we may have an issue, the firewall is meant to block such thing. You can check yours with https://ipinfo.io for example.