Options error: You must define TUN/TAP device (--dev)

[ergadin]

I previously had all of this working on my Synology device, but did a clean install of the operating system and reinstalled this container. Despite using the same settings, it is no longer working. The container will stop running after less than a minute. I've attached logs below. The things that stick out to me are:

• Options error: You must define TUN/TAP device (--dev)
• sed: can't read /etc/openvpn/nordvpn/default.ovpn: No such file or directory
• WARNING: initial DNS resolution test failed

However, I'm unsure which of these, if any, are the reason for the shutting down. I've already made sure I've done my basic troubleshooting such as permissions, rebooting, correct credentials, ports open, etc.

2022-06-11T16:26:50.888181657Z	stdout	Use --help for more information.
2022-06-11T16:26:50.888144681Z	stdout	Options error: You must define TUN/TAP device (--dev)
2022-06-11T16:26:50.888003537Z	stdout	Sat Jun 11 16:26:50 2022 disabling NCP mode (--ncp-disable) because not in P2MP client or server mode
2022-06-11T16:26:50.867797207Z	stdout	adding route to local network 192.168.0.0/24 via 172.17.0.1 dev eth0
2022-06-11T16:26:50.761644605Z	stdout	Setting OpenVPN credentials...
2022-06-11T16:26:50.758362536Z	stdout	Modification: Remap SIGUSR1 signal to SIGTERM, avoid OpenVPN restart loop
2022-06-11T16:26:50.755480185Z	stdout	Modification: Set output verbosity to 3
2022-06-11T16:26:50.752704625Z	stdout	Modification: Change tls-crypt keyfile path
2022-06-11T16:26:50.749190045Z	stdout	Modification: Update/set resolv-retry to 15 seconds
2022-06-11T16:26:50.748706053Z	stdout	sed: can't read /etc/openvpn/nordvpn/default.ovpn: No such file or directory
2022-06-11T16:26:50.747460938Z	stdout	sed: can't read /etc/openvpn/nordvpn/default.ovpn: No such file or directory
2022-06-11T16:26:50.746341014Z	stdout	sed: can't read /etc/openvpn/nordvpn/default.ovpn: No such file or directory
2022-06-11T16:26:50.745091483Z	stdout	sed: can't read /etc/openvpn/nordvpn/default.ovpn: No such file or directory
2022-06-11T16:26:50.743965487Z	stdout	Modification: Change ping options
2022-06-11T16:26:50.743672651Z	stdout	sed: can't read /etc/openvpn/nordvpn/default.ovpn: No such file or directory
2022-06-11T16:26:50.740866394Z	stdout	Modification: Change ca certificate path
2022-06-11T16:26:50.740708793Z	stdout	sed: can't read /etc/openvpn/nordvpn/default.ovpn: No such file or directory
2022-06-11T16:26:50.737412194Z	stdout	Modification: Point auth-user-pass option to the username/password file
2022-06-11T16:26:50.737181926Z	stdout	Modifying /etc/openvpn/nordvpn/default.ovpn for best behaviour in this container
2022-06-11T16:26:50.734817387Z	stdout	No VPN configuration provided. Using default.
2022-06-11T16:26:50.732963148Z	stdout	curl: (6) Could not resolve host: downloads.nordcdn.com
2022-06-11T16:26:30.703597867Z	stdout	2022-06-11 16:25:30 Downloading from: https://downloads.nordcdn.com/configs/files/ovpn_udp/servers/.udp.ovpn
2022-06-11T16:26:30.703547097Z	stdout	2022-06-11 16:25:30 Downloading config: default.ovpn
2022-06-11T16:26:30.703119369Z	stdout	2022-06-11 16:25:30 Best server :
2022-06-11T16:26:10.668654075Z	stdout	2022-06-11 16:25:30 Unable to find a server with the specified parameters, using any recommended server
2022-06-11T16:25:50.637062266Z	stdout	2022-06-11 16:25:30 Searching for technology: openvpn_udp
2022-06-11T16:25:30.551423542Z	stdout	2022-06-11 16:25:30 Selecting the best server...
2022-06-11T16:25:30.548055311Z	stdout	2022-06-11 16:25:30 Removing existing configs
2022-06-11T16:25:30.547735434Z	stdout	2022-06-11 16:25:30 Checking curl installation
2022-06-11T16:25:30.541644981Z	stdout	Executing setup script for NORDVPN
2022-06-11T16:25:30.541597927Z	stdout	Provider NORDVPN has a bundled setup script. Defaulting to internal config
2022-06-11T16:25:30.541553221Z	stdout	Running with VPN_CONFIG_SOURCE auto
2022-06-11T16:25:30.541320409Z	stdout	Using OpenVPN provider: NORDVPN
2022-06-11T16:25:30.538472359Z	stdout	mknod: /dev/net/tun: File exists
2022-06-11T16:25:30.531716157Z	stdout	Creating TUN device /dev/net/tun
2022-06-11T16:25:30.531273262Z	stdout	WARNING: initial DNS resolution test failed
2022-06-11T16:25:12.435375600Z	stdout	Starting container with revision: 94754fe91d3a430bafa6b0dec75f56ded43ef1df

[edgd1er]

Master and dev have not been merged for a long time. Nordvpn scripts have had a large revision in 2021. You may have more information with the dev tag image. Nonetheless, your missing device and dns problem are host/network related.