Server Fault Stack Exchange
Server Fault Stack Exchange

Questions tagged [openvpn]

OpenVPN is a free and open source software VPN solution. It allows secure point-to-point or site-to-site connections with routed or bridged configurations and remote access facilities.

OpenVPN is a free and open source software application that implements VPN techniques for creating secure point-to-point or site-to-site connections in routed or bridged configurations and remote access facilities. It uses SSL/TLS security for encryption and is capable of traversing network address translators and firewalls.

It's architecture is build upon 4 principles:

  • Encryption
  • Authentication
  • Networking
  • Security

More info is to be found on the Open-Source site of VPN.
A very thorough tutorial can be found on Shorewall.

3274 questions
1
vote
1 answer

Multi connection option for Openvpn management interface

Is there any option for multi connection to openvpn management interface? I can make one connection at same time. I need more. Regards, Hakan.
hakand
  • 13
  • 3
1
vote
2 answers

OpenVPN client on Amazon EC2

I have an account with an OpenVPN service, and I'd like to get that running on my EC2 instance running Ubuntu 12.04. I have my config file in /etc/openvpn, and it connects fine when I run sudo openvpn --config matt.ovpn. However, I then lose…
Matt Culbreth
  • 113
  • 1
  • 4
1
vote
1 answer

kernel openvpn segfault

e.. I have some trouble about OPENVPN these days.. At first,I find that the OPENVPN is always down. Then I try to restart it.But after a short while,It's down again. Then I check /var/log/messages and find something below openvpn[4338]:…
Rex
  • 11
  • 1
1
vote
1 answer

Routing between two OpenVPN tunnels fails

We have three sites A, B an C. There is an OpenVPN link from A to B and from A to C. A is the client for both. Bnet Cnet | | B C \ / \ / V A | Anet Anet can communicate with Bnet and Cnet just fine. Both Bnet and Cnet can…
Eric Darchis
  • 153
  • 1
  • 7
1
vote
0 answers

How do I reach both VPN IPs of Machine running multiple instances of OpenVPN (as client)?

I haven't been able to clearly find an example solving a problem that is exactly like this, so I'm posting this request for help. Ideally, diagnosis of what's wrong with my ecosystem and applicable fixes. What I'm trying to achieve is have a one…
starlocke
  • 223
  • 2
  • 11
1
vote
1 answer

OpenVPN up directive not working

I'm having trouble setting up OpenVPN on my server running CentOS 6.2. I have used OpenVPN on this server before and it worked (although that was with Ubuntu, now I'm using CentOS). I just reformatted the hard drive and am trying to get OpenVPN up…
edc1591
  • 173
  • 2
  • 9
1
vote
3 answers

Road Warrior VPN Setup

I apologise up front for the rather open ended nature of this question but I've got well out of my depth and could really do with some pointers. I need to set up a road warrior VPN solution which will allow our customers to securely access a number…
wobblycogs
  • 115
  • 7
1
vote
1 answer

NFS4 (TCP) over openvpn (UDP) - mount can be browsed, but D/L kills it

Setup works (client can browse nfs over openvpn and do some work and file transfers), but something is wrong because the NFS/OpenVPN mount will fail/freeze mid-transfer and (among other things) prevent the client from restarting. issuing #mount -l…
jojo
  • 23
  • 7
1
vote
1 answer

multiple openVPN instances - tun1 fails

Various resources are on the below LAN, one of which is Linux openVPN server. For complicated reasons, I have to run 2 openVPN server instances, VPN1 and VPN2. VPN1 works great, hands out 10.8.0.x tun0 IP's to connecting clients. Clients are then…
dan
  • 279
  • 1
  • 4
  • 15
1
vote
1 answer

Use OpenVPN gateway only on selected destinations?

Is it possible to set up OpenVPN on the client so that the gateway is used only on chosen destinations? I have read this answer OpenVPN make redirect-gateway optional on making the use of the gateway optional, via push-reset. If any client is…
vfclists
  • 1,632
  • 5
  • 22
  • 37
1
vote
3 answers

How can an OpenVPN server be setup to use multiple certificates?

The OpenVPN documentation sets up a single certificate from a single CA to be used for all clients. Is there a way to set the server to enable multiple certificates from different CAs so long as the clients have valid certificates from trusted…
vfclists
  • 1,632
  • 5
  • 22
  • 37
1
vote
1 answer

OpenVPN port sharing - can traffic be distinguished from HTTPS?

I intend to set up OpenVPN with the port-share option on port 443. --port-share When run in TCP server mode, share the OpenVPN port with another application, such as an HTTPS server. Can a network node which routers the OpenVPN traffic distinguis…
Robert Munteanu
  • 1,644
  • 5
  • 23
  • 41
1
vote
1 answer

pfSense - OpenVPN - tap - client connection: Default Gateway Error

We have setup a OpenVPN Server on a pfSense v2.0.1 Router with the "OpenVPN tap Bridging Fix package" to build a bridged VPN network. We followed this HOWTO: link Nearly everything workes fine expect getting tap device online on client side (Ubuntu…
Arny80Hexa
  • 139
  • 1
  • 4
  • 14
1
vote
2 answers

Dnsmasq Configuration for OpenVPN

I'm trying to configure an OpenVZ VPS running Debian 6 to run OpenVPN. I've got OpenVPN running, and I can connect to it, but my traffic isn't passing through yet. I get an error when dnsmasq start, and I'm not sure how to resolve it. Here's the…
Lenwood
  • 184
  • 1
  • 11
1
vote
1 answer

OpenVPN Setup - Service Won't Start

I'm in the process of setting up OpenVPN on a VPS running Debian 6. I've walked step-by-step through this guide twice now, and I can't get the service to start. When I start the service, the error reported in the log file is: Cannot ioctl TUNSETIFF…
Lenwood
  • 184
  • 1
  • 11
1 2 3
…
99
100