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We are noticing this on a number of our openvpn clients:

[root@box ~]# netstat -tulpn | grep openvpn
udp        0      0 0.0.0.0:53950               0.0.0.0:*                               1562/openvpn
[root@box ~]#

I am having a hard time finding any info via google regarding what is causing openvpn to open this random UDP port.

This port is random as it differs on each box, and when one restarts openvpn.

Any ideas?

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  • Could you paste a client config into your question?
    – MadHatter
    Dec 15, 2013 at 12:55

1 Answer 1

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We have found the issue causing this.

We had nobind in our openvpn client conf.

After removing nobind, and adding the following:

bind
local {OUR LAN IP}

The 0.0.0.0:PORT listen has changed to whatever IP we provide in "local".

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  • Please accept your own answer as suggested in the SO FAQ.
    – kostix
    Dec 16, 2013 at 11:21
  • Would love to... Even tried right after I entered the answer... But unfortunately I am not "allowed": "You can accept your own answer tomorrow". Dec 16, 2013 at 12:40

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