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.

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How to fix the Logjam vulnerability in OpenVPN server config?

As of this writing (Day-2), there are quite few accurate guidelines as to how to mitigate Logjam for Apache and other web servers, such as this page: https://weakdh.org/sysadmin.html What are the ...
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1answer
988 views

How to troubleshoot problem with OpenVPN Appliance Server not able to connect

1) I have a Windows Server 2008 Standard SP2 2) I am running Hyper-V and have the OpenVPN Appliance Server virtual running 3) I have configured it as it said, only issue was that the legacy network ...
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1answer
3k views

IP served by OpenVPN doesn't take ipp.txt into account

I'm facing some troubles right now with an OpenVPN server an former colleague set up (I'm not too into it ATM). We're using OpenVPN for a private network of ~200 clients (to be more specific, only 15 ...
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3answers
13k views

How to connect multiple VPNs using OpenVPN on Windows 7 on the same time?

I work most of the time remotly from home. To gain access to the different servers (via SSH) I have to use OpenVPN. I would like to connect to all of them (three, sometimes four) at once, so I dont ...
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10 views

embedded device vpn routing for iptables: Good place to find docs? [on hold]

We will be making a vpn for our embedded linux devices. The embedded devices are outside the local network somewhere on the internet. We would like our company employees to be able to connect into a ...
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30 views

openvpn only works with https

i have an openvpn server and it only works with https web pages. I would like to use with any resource, any help? /etc/openvpn/server.conf local 192.168.100.102 dev tun proto udp port 1194 ca ...
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5answers
4k views

OpenVPN client connects but can't access internet

I setup an Openvpn server on a centos box and I can get the client to connect (osx) but can't access the internet or even the local network. I thought maybe DNS but couldn't access any sites via IP. ...
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1answer
42 views

OpenVPN: Traffic Redirection not Working

tl;dr (after hours of debugging with @krisFR): At least under Debian 8, never use virtual interfaces (eth0:1) for OpenVPN, instead apply the new debian iproute2 methods (manual approach) described ...
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15 views

Use haproxy to route openvpn trafic to mutliple openvpn instances

I'd like to use multiple OpenVPN docker instances on the same IP port, so I'm looking for a way to route the ssl vpn trafic, does something like haproxy can do the job? Maybe by sniffing the ssl ...
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54 views

My OpenVPN setup is still has a DNS leak [on hold]

I just setup a OpenVPN server on Ubuntu 14. Then I did a test on: http://dnsleak.com/. It says that my DNS is leaking. DNS IP: 68.67.52.186 Hostname: IP-68-67-52-186.static.fibrenoire.ca ISP: ...
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1answer
1k views

Help with OpenVPN setup on Windows Server 2003

Just wondering if someone can assist me further with the set-up of OpenVPN on my Windows Server 2003. I have configured Win Server as per the following guide: http://tinyurl.com/kxusv and I'm now at ...
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19 views

How to add an adblocking functionality to my openVPN server? [on hold]

I've just installed openVPN on my (ubuntu) server and generated&installed the clients configurations files on my iPhone and my Macbook. However I would like to add an adblocking functionality: I ...
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1answer
32 views

Tcpdump/Iptables on bridge interface without assigned IP address

I have set up a bridge interface without an ip on it. $ brctl addbr br0 $ brctl addif tap0 $ brctl addif tap1 $ ifconfig br0 up As seen above, this bridge is connecting 2 TAP interfaces setup ...
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3answers
887 views

OpenVPN routing issue (cache in routing tables)

I'm adding the route IP_ADDRESS NETMASK net_gatewayto the OpenVPN config file (locally), so it's not being pushed by the server and it works perfectly fine. However, when I remove the routing line ...
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1answer
6k views

OpenVPN: ERROR: could not read Auth username from stdin

I managed to setup openvpn but now I want to integrate a user/pass authentication method so, even though I haven't added the auth-nocache in the server config, whenever I try to connect it returns ...
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1answer
30 views

OpenVPN Server configuration to route internet trafic

I have a problem to configure OpenVPN. This happens when I am connected: I can ping the server 192.168.42.1 from the client 192.168.42.6 and vice versa. I can access to the listening daemons on the ...
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1answer
77 views

OpenVPN routing: multiple default entries. OpenVPN client: iptables. DNS issues

I'm running an OpenVPN-Server (Debian 8) for privacy purposes when using public wifi. Hence, all network traffic of the client is intended to be handled over the VPN connection. The server and client ...
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0answers
21 views

Internet access not working on VPN set up with OpenVPN: DNS issue [on hold]

I need to set up a VPN using OpenVPN to use it in my project. I did my researches about this subject and I found that the best solution is using OpenVPN. And I try to find a solution to set up a VPN ...
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2answers
4k views

Cisco AnyConnect VPN via OpenVPN tunnel [Unable to modify IP forwarding table]

Background: I'm working as a contractor for a small web design agency. We have a particular project / client requires that any updates / development that are performed are done via VPN. The client VPN ...
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1answer
2k views

Zentyal Server : Setting up secure VPN Client

I have officially exhausted pretty much all my google-fu trying to set this up so I'm asking my question here. For the record, I am a mid level rookie who has played around with servers in his spare ...
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1answer
20 views

Can I use the same client certificate in multiple OpenVPN tunnels to the same server?

I have a simple setup like this: SERVER ---- INTERNET ---- CLIENT On SERVER I already have OpenVPN set up with a sertificate for CLIENT. On CLIENT I already have OpenVPN set up to contact the server ...
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1answer
2k views

Why OpenVPN client fails to start (TLS timeout) when wifi signal is not ideal?

I have OpenVPN clients running on Carambola2 devices [1] and when I use 3g/umts stick or wired ethernet then OpenVPN clients establish vpn tunnel every time. When wifi is used then OpenVPN client ...
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1answer
2k views

OpenVPN: Not all DNS entries get pushed to clients from server. (dnsmasq)

I have been trying to find a solution to this problem, but have found no answer so far, so I hope you guys can help me out. I have a server running Ubuntu 10.04, which has a static IP address and an ...
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2answers
48 views

Are there any Distributed/mesh-like/P2P VPNs?

I have my personal VPN, connecting several devices so they can have fixed IP addresses on an always-reachable network (as long as they are connected to the Internet). This is necessary for me, since ...
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1answer
10k views

OpenVPN connected but not internet access on the client

I've setup OpenVPN following this tutorial, and everything works fine except that I don't have an internet connection on the client while connected to VPN. ...
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2answers
40 views

openvpn dns server not resolving forwarded DNS lookups after connecting, only local

I am using OpenVPN server (on an Ubuntu server 14.04) with Mac OS X Yosemite client (using TunnelBlick v 3.50 build 4265). It works well except for the DNS server from the VPN server which although ...
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7answers
12k views

What's the advantage of OpenVPN over SSTP?

If considering Windows only environment, what's the advantage of introducing OpenVPN as the company VPN service, instead of Windows built-in protocols? Especially the new SSTP protocol already ...
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1answer
38 views

google-authenticator for two-factor-authentication support with openvpn client on linux

I am trying to get openvpn client to work with google-authenticator and two-factor-authentication. I cannot alter the server in any way (i.e. I cannot do password/token concactenation via pam mods, ...
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1answer
35 views

Route a port through a specific network interface

I'm using OpenVPN on Ubuntu Server to connect to my VPN. That network interface is tun0. All traffic currently goes through the VPN. I'd like to exclude traffic that goes over a specific port, and ...
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1answer
1k views

OpenVPN connects but gets invalid IP on Tap Device

I have a WinXP SP2 box trying to connect on a OpenVPN server and getting the following errors: Tue May 14 11:29:52 2013 Notified TAP-Windows driver to set a DHCP IP/netmask of ...
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1answer
32 views

Hide OpenVPN client's IP

Is it possible for a OpenVPN server letting clients communicate with one another and they do not know other's IP in VPN? My VPN server is ubuntu 14.04 32bit
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2answers
1k views

Redirect OpenVPN gateway traffic to Privoxy

I would like to redirect the traffic that goes through my OpenVPN gateway to Privoxy, like so: OpenVPN client->Internet->OpenVPN gateway->Privoxy->Internet->Webserver (and vice versa) So far I ...
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1answer
20 views

OpenVPN client stops working after a few minutes

I'm using OpenVPN client, and it works fine but after a few minutes the VPN stops working. I'm getting these errors in the logs: Sun May 10 20:55:28 2015 [nrt-c01.ipvanish.com] Inactivity timeout ...
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18 views

OpenVPN client-server Static Key setup error: ifconfig used inconsistently

I have followed the basic Static Key guide found here but I cannot establish a successful connection and ping either server. ...
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16 views

DNSMasq stops forwarding requests after a while

Today I've been having DNS issues. I use DNSMasq in conjunction with OpenVPN to form a VPN. Before now I've never had any problems, but today DNSMasq has randomly stopped forwarding requests. No ...
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1answer
25 views

OpenVPN service mode connection from Windows 8 fails after shutdown

I have an openvpn server that works fine, but have an issue on a Windows 8.1 station that is configured in service mode. I have installed it already to more Win8 PCs but not in service mode. The ...
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31 views

Setting up OpenVPN with IPv6 drops packets

I have tried a multitude of OpenVPN tutorials with zero luck getting OpenVPN up and getting clients to talk to the internet with IPv6. However IPv4 works just fine. The server is Ubuntu 14.10 and ...
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2answers
1k views

NFS Over OpenVPN: Top Performance Boosters

I have two VPS's - One is running 2008 Server R2 and the other is a Ubuntu 12.04 installation. I am using the Windows VPS for RD sessions for Quickbooks and a couple other apps and using the Ubuntu ...
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3answers
3k views

How can I achieve OpenVPN client routing without NAT on Linode

I've set up an OpenVPN network, and it is working properly in the sense that I can access the inner/LAN machines from the remote client. However, my problem is that all traffic from the remote ...
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1answer
1k views

How to work around an uncooperative HTTP Proxy?

I am trying to set up a OpenVPN tunnel and I'm getting this error on the server side: Wed Dec 11 13:34:24 2013 us=454625 WARNING: Bad encapsulated packet length from peer (18245), which must be > ...
18
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3answers
9k views

OpenVPN performance: how many concurrent clients are possible?

I am evaluating a system for a client where many OpenVPN clients connect to a OpenVPN server. "Many" means 50000 - 1000000. Why do I do that? The clients are distributed embedded systems, each ...
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4answers
7k views

What is difference between OpenVPN and PPTP?

I know PPTP is based PPP, so what is the openVPN based on ? can the packets of openVPN be routed by ubuntu server ? thanks!
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1answer
1k views

OpenVPN connects and access to ip works but not url in browser

I have been struggling for 2 days to setup Openvpn access to one of my servers but something doesn't work. First about my setup: My server is Debian 6 installed on vps on kvm environment. I have ...
2
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1answer
914 views

Route outbound connections from local network through VPN

I have a server A running OpenVPN, an OpenVPN client B (a rooted Android phone as it happens) and a third party C (a laptop, tablet etc.) tethered to B. B can use the VPN to access the internet via ...
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9 views

SoftEther intercommunication between softether clusters setup

Hi i have setup a minimal configuration of SoftEther with 3 regions. These three regions have internal communication between each other. However now i would like to implement load balancing, thus i ...
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2answers
26 views

Failover or replication with an OpenVPN server?

Is it possible to implement two OpenVPN with failover and replication capability? As in, if one is down/fails, the other one is avaliable for authentification, server/client configuration, etc. ?
2
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1answer
17 views

SSH authentication based on existing OpenVPN tunnel

I have a single CentOS server, and several Windows clients that should connect to it, from remote. I've successfully setup OpenVPN (with Public Keys), with which the clients connect to the server; and ...
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1answer
29 views

Openvpn doesn't log user disconnect event

I am running CentOs 6.5 and OpenVPN server 2.3.6. The task is to log info about VPN sessions: who logged in, when, from what ip, when disconnected. I have already done some part of the task. But how ...
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1answer
1k views

Juniper SRX1400 VPN

I have been trying to set up a client VPN on a Juniper SRX1400 without much success. All documentation I found from Juniper and elsewhere does a lot of other (difficult and wonderful) things other ...
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1answer
28 views

OpenVPN server, UDP port no longer accessible

I am having a strange problem with OpenVPN. The server has worked fine and with no modification for a long time, except for updates. It suddenly stopped working and I can't figure out why. I cannot ...