Openvpn Conf File For Mac Client

Active1 month ago
  • By the end of this tutorial you'll be running your own OpenVPN server, and have a client configuration file ready to download to connect to this network. Prerequisites A FreeBSD 10.1 Droplet.
  • How can I set DNS servers on the client using only the client configuration. My client is a windows machine and I want to change the DNS servers when the client connects and revert back to the original configuration when I disconnect from the VPN.
  • To add the OpenVPN file to Tunnelblick simply right-click on the file, and select 'Open With' - > 'Tunnelblick' 14. Click on Tunnelblick icon and select your connection.

Each client will need a different, but similar, config file depending upon that client's Common Name.) Copying the Server and Client Files to Their Appropriate Directories Copy these files from C: Program Files OpenVPN easy-rsa to C: Program Files OpenVPN config on the server.

How can I set DNS servers on the client using only the client configuration. My client is a windows machine and I want to change the DNS servers when the client connects and revert back to the original configuration when I disconnect from the VPN.

All information I have found so far refers to pushing the DNS configuration to the client using the server's config but in this case I can't change the server configuration and am currently doing it manually every time I connect to the VPN. An openvpn config option to set the local machines DNS servers for the duration of the connection would be great.

Fahad YousufFahad Yousuf

4 Answers

You can use batch script to do this, something like the following. It assumes your home DNS servers are 1.1.1.1 and 2.2.2.2 and your VPN DNS servers are 8.8.8.8 9.9.9.9:

vpn-connect.bat:

netsh interface ip set dns 'Local Area Connection' static 8.8.8.8

netsh interface ip add dns 'Local Area Connection' 9.9.9.9

vpn-disconnect.bat

netsh interface ip set dns 'Local Area Connection' static 1.1.1.1

Openvpn Conf File For Mac Client Management

netsh interface ip add dns 'Local Area Connection' 2.2.2.2

I was going to include in these scripts methods of connecting and disconnecting, however I do not see an option in OpenVPN to disconnect via command line. If you wish to automate connection, this should work:

C:Program Filesbinopenvpn.exe C:Program Filesconfclient.ovpn

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Andrew WhiteAndrew White

You can add the following to the client config file.

Openvpn Os X For Mac

On the server side it would have been :

It seems it's using dhcp-option on both sides. You can do the same with route.

brunoqcbrunoqc

Apparently there is problem with a faulty binding order in Windows, at least including Windows 2000/XP/7. This will cause Windows OpenVPN clients to use the default network adapter's DNS settings rather than the VPN adapter's settings.

To fix this you need to place your VPN TUN or TAP device above your local network adapter in the bind order:

  1. Identify your VPN device by looking at the output from ipconfig. For me this was 'Local Area Connection 2'. Remember your IP address for this adapter.
  2. Open regedit.exe and find the key under HKEY_LOCAL_MACHINESYSTEMCurrentControlSetServicesTcpipParametersInterfaces which matches your VPN adapter's IP address. Remember the GUID for this adapter.
  3. Go to HKEY_LOCAL_MACHINESYSTEMCurrentControlSetServicesTcpipLinkage and double click on Bind. This will contain a list of GUIDs for the adapters. Cut and paste the line corresponding to your VPN device's GUID to the top of the list and save the list.

This will cause the DNS entries for your VPN device to be used (and only while the VPN connection is active). You can set them according to the answer by @brunoqc. While you're at it, you should probably also add the openvpn option block-outside-dns, to ensure that DNS queries are not leaking.

This answer is based upon this very useful blog post.

jtbrjtbr

In addition to either of the two below:

or

Add these to the client config as well, to force Windows to use the configured DNS:

The 1st forces Windows to prefer the configured DNS server over any other it may have received from DHCP. The 2nd prevents DNS leakage to any DNS server other than the configured one.

Duke NukemDuke Nukem
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Openvpn Client Mac Os

Active9 months ago

Currently our OpenVPN Community Edition server (version 2.3.11 running on RHEL) client config files are stored in /etc/openvpn/ccd. We want to control which network routes each user gets depending on what their job title is. For example developers get AWS routes, which non-developers shouldn't get, but all users need to have file server access. I know routes for all clients can be added to /etc/openvpn/openvpn.conf, but we need to add routes based on job title. Is there a way to control this, perhaps by creating a single file with all AWS routes, which is referenced by each developer's client config (CCD) file? Or is there a way to somehow create a group structure where if you fall into a specific group (ex: developer) you get specific routes? Currently I have to manually edit each user's CCD file to give them the appropriate network access, which is a real pain when you have dozens of users and the routes for each user can change at any time. We have a mixed environment with clients running Windows or macOS, so the ideal solution would be done from the server and not from the client's machine.

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KeithJ
KeithJKeithJ

1 Answer

CCD in principle is per CN (Common name / username). What you can do is to create the 'role' definition (e.g. _developers, _admins, _sales, _developers-admin,...) and create symbolic link to specific cn...

This way you can edit 'template' instead of each single file per user.

CCD is not firewall !

Please be aware that not pushing the route doesn't mean that that user cannot add it manually on his/her side... In case it would be really separate you should handle it also on firewall level to really limit the access to the users:

  • use the persistent IP and next to the pushed route set up the firewall
  • utilize route up/down script (which know who and with what IP is /dis-/connecting) to set up individual firewall rules
Kamil JKamil J

Openvpn Config File For Mac Client

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