OpenVPN DNS: VPN DNS stomping local VPN

Posted by Eddie Parker on Super User See other posts from Super User or by Eddie Parker
Published on 2010-03-23T17:35:52Z Indexed on 2010/03/23 17:43 UTC
Read the original article Hit count: 1272

Filed under:

openvpn

|

dns

I've finally noodled with OpenVPN enough to get it working. Even better, I can mount samba drives, ping network machines through the TUN device, etc - it's all great.

However, I'm noticing that if I have the directive:

push "dhcp-option DNS 10.0.1.1" # Push our local DNS to clients

Then some of the machines that are normally visible by the client, on the client's side (i.e., not through the VPN) get masked with some other server out on the Internet.

Is there any way to avoid this, besides hacking the 'hosts' file on the client machine? Ideally I'd like to only use my VPN's DNS for machines within that domain.

© Super User or respective owner

Related posts about openvpn

Encouter error "Linux ip -6 addr add failed" while setting up OpenVPN client

as seen on Server Fault - Search for 'Server Fault'
I am trying to set up my router to use OpenVPN and have gotten quite far (I think), but something seems to be missing and I am not sure what. Here is my configuration for the client: client dev tun proto udp remote ovpn.azirevpn.net 1194 remote-random resolv-retry infinite auth-user-pass /tmp/password… >>> More
OpenVpn: Setting Up Openvpn in Ubuntu 10.04

as seen on Ask Ubuntu - Search for 'Ask Ubuntu'
I am trying to setup OpenVpn Server on Ubuntu 10.04. I am not good in network concepts so its hard to understand the IP address that are given in the setup tutorial.. I could find many sites to setup openvpn server but i have few doubts in it. 1.I am mainly setting up the server to make it work… >>> More
pfsense peer-to-peer OpenVPN not connecting

as seen on Server Fault - Search for 'Server Fault'
I'm trying to setup a peer-to-peer OpenVPN between two pfsense servers running 2.0.1-RELEASE, but the client keeps getting the connection dropped, with a status of "reconnecting; ping-restart" and nothing appears to be routing between them. Both these firewalls are also doing PPTP VPNs that are working… >>> More
OpenVPN not connecting

as seen on Ask Ubuntu - Search for 'Ask Ubuntu'
There have been a number of post similar to this, but none seem to satisfy my need. Plus I am a Ubuntu newbie. I followed this tutorial to completely set up OpenVPN on Ubuntu 12.04 server. Here is my server.conf file ################################################# # Sample OpenVPN 2.0 config file… >>> More
openVPN GUI does not run error about error opening registry for reading HKLM\SOFTWARE\OpenVPN

as seen on Super User - Search for 'Super User'
I'm trying to run OpenVPN as a portable application and to that effect i have installed it on a Windows 7 machine, copied the files to another windows 7 machine and manually restored the registry settings using a .reg file. Whenever i try to run open vpn GUI i get the following error error opening… >>> More

Related posts about dns

Master/Slave DNS setup vs. rsync'ed DNS servers

as seen on Server Fault - Search for 'Server Fault'
We currently have primary and secondary DNS servers on our corporate network. They are setup in a master/slave type setup, where the slave gets its DNS information from the master. I'm trying to figure out what the real advantage is for the master/slave setup instead of just setting up an automated… >>> More
Updating Windows DNS records from a remote windows DNS server

as seen on Server Fault - Search for 'Server Fault'
Does anyone know if it is possible for a windows 2003 DNS server to update the records for a domain so that it contains all the records of a domain of of a remotely based DNS server? Im almost certain that doesn't quite explain the problem so I shall illustrate with an example: We have two offices… >>> More
OpenVPN DNS: VPN DNS stomping local VPN

as seen on Super User - Search for 'Super User'
I've finally noodled with OpenVPN enough to get it working. Even better, I can mount samba drives, ping network machines through the TUN device, etc - it's all great. However, I'm noticing that if I have the directive: push "dhcp-option DNS 10.0.1.1" # Push our local DNS to clients Then some of… >>> More
Random DNS Client Issue with BIND9/Windows Server 2003 DNS

as seen on Stack Overflow - Search for 'Stack Overflow'
Within our office, we have a local server running DNS, for internal related "domains", (e.g. .internal, .office, .lan, .vpn, etc.). Randomly, only the hosts configured with those extensions will stop resolving on the Windows-based workstations. Sometimes it'll work for a couple weeks without issue… >>> More
DNS Tools - DNS and Few of its Concerning Terms and Tools

as seen on Article City - Search for 'Article City'
A DNS or Domain Name System lets you locate computers on a network or the Internet TCP/IP network by domain name. The DNS server sustains a database of domain names or host names along with their cor... [Author: Daisy Osbaldo - Computers and Internet - April 02, 2010] >>> More