DHCP clients and VPN connections

Andrew Pollock apollock at debian.org
Fri Apr 4 05:42:19 UTC 2008


An interesting bug[1] was just brought to my attention:

if user on a computer using dhclient brings up a VPN connection, and
dhclient subsequently renews the lease, there's a bit of a fight over
/etc/resolv.conf. The VPN client updates it when the VPN connection is
brought up, but then dhclient goes and clobbers it with the original local
nameserver information.

There's a few suggestions for workarounds in the bug report followups, but I
don't think any of them are particularly ideal.

Does anyone have any suggestions on how to deal with this scenario?



[1] https://bugs.launchpad.net/ubuntu/+source/dhcp3/+bug/90681
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