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MarkusMcNugen / docker-qBittorrentvpn

Docker container which runs a headless qBittorrent client with WebUI and optional OpenVPN
https://hub.docker.com/r/markusmcnugen/qbittorrentvpn/
GNU General Public License v3.0
171 stars 92 forks source link

Pull Request to Allow DNS on OpenVPN Reconnect #30

Closed PacketShepard closed 4 years ago

PacketShepard commented 5 years ago

Hi Markus,

I decided to make a pull request to fix this issue. If OpenVPN experiences a connection failure and is using a FQDN as the remote server, the current container will not allow it to perform a DNS query to look up the IP address. This creates a permanent failure of OpenVPN unless you restart the container. It's caused by the leak prevention in iptables blocking DNS queries to ${NAME_SERVERS} on eth0 after the initial OpenVPN connection.

This could allow minor DNS leakage while OpenVPN reconnects, but I think is the best compromise for tunnel reliability. Please consider merging into master.

Thanks,

PacketShepard

claabs commented 5 years ago

I'd appreciate this being merged. I currently have my container restart daily to avoid a long-term failure due to a short network outage.