Any reason not to start openvpn as root?

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http://askubuntu.com – I'm running openvpn (client) on a home ubuntu server. I currently create the connection with the command: sudo openvpn /path/to/config/file If I don't run it as root, I get an error that the TUN interface can't be created. I found an old thread on the topic where someone suggested adding your user to netdev, but after doing that I still get the same error. How urgent is it to solve this problem? Does it really matter if I init the openvpn connection as root or not? Is it a security hazard? Thanks! (HowTos)