openvpn pushed dns get lost by local dhcp

amadom

Hello, I'm trying to configure an OpenVPN client (using ubuntu network manager). Everything is working perfectly except that the openVPN pushed DNS get overwriten by the local DHCP client. The file /etc/resolv.conf get changed to the original one (before the VPN went UP). So I cannot access the remote DNS server to resolv.

Any help will be greatly appreciated.

amadom

Here's my server configuration :

port 1194
proto udp
dev tun
ca ca.crt
cert server.crt
key server.key
dh dh1024.pem                                                                                                                                                                                                                                                                  
server 10.8.0.0 255.255.255.0
ifconfig-pool-persist ipp.txt
push "route 192.168.144.0 255.255.255.0"
push "route 10.0.2.0 255.255.255.0"
push "dhcp-option DNS 10.0.2.1"
push "dhcp-option WINS 10.0.2.2"
push "dhcp-option NBT 8"
keepalive 10 120
comp-lzo
user nobody
group nogroup
persist-key
persist-tun
status openvpn-status.log
verb 3
client-cert-not-required
username-as-common-name
plugin /usr/lib/openvpn/openvpn-auth-ldap.so /etc/openvpn/ldap-config/auth-ldap.conf

janjust

if you're using networkmanager to manage your local network as well then this should not happen ; I'm using NetworkManager 0.8+ on Fedora to manage both eth0 and my VPN connections and DNS resolution works OK (using default settings).

amadom

Thank you for your reply.

I will look the DHCP server side.

Thank you !