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I just managed to cut my OpenVPN connection to some 20 servers tonight. I was experimenting with the client-connect scripts, and at some point one of the scripts returned a non zero response. This non zero response triggered an AUTH: Received AUTH_FAILED control message in the syslog which eventually resulted in a SIGTERM[soft,auth-failure] received, process exiting exit from the OpenVPN client. Is there a way to protect myself from this? Any configuration on the server or client side?

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Any help is appreciated... anyone? –  rmarimon Jun 29 '11 at 2:23
This is like typing something in google and getting 0 pages found. –  rmarimon Jun 29 '11 at 16:33
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1 Answer 1

up vote 1 down vote accepted

The easiest way to protect yourself from this is to wrap the openvpn client in a while loop that restarts it. Looking at the openvpn discussion list it appears this was a design decision made because auth failures likely require manual intervention and having the client retry repeatedly would in many cases lock out the user (according to SOX/PCI compatible security precautions). It isn't clear what your OS config is, in OS X the launchd would take care of respawning this.

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Will do this and see how it works. I'm thinking this as a protection mechanism against misconfigurations on my side that would result in a disconnected openvpn client. As for the clientes they are linux so I'll cron my way through it. –  rmarimon Aug 16 '11 at 16:41
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