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.

learn more… | top users | synonyms

0
votes
0answers
63 views

OpenVPN bridge failed to forward packet

I have a pair of OpenVPN bridge working for my school. The bridge works well, it did bridge ip traffic between the 2 sites. My problem is, if a user turn on a PC after the bridge has already started. ...
-1
votes
1answer
2k views

OpenVPN server on Windows 7 - How to route specific IP addresses to clients?

Okay, so I do not have a strong background per se in computing, nor networking, and I'm really just starting to learn this stuff now, for a relatively small family business of ours. It is rather ...
1
vote
0answers
303 views

Using iptables to route all internal data to tun0 from eth0

Looking for a few answers ;) I'm running Zentyal on a gateway. The gateway is also an OpenVPN client, to a server I run out of another country. Interfaces are thus : External : eth1 (dhcp from the ...
1
vote
0answers
90 views

What's the meaning of “\x38\x01\x00\x00\x00\x00\x00\x00\x00” in openvpn connection using netcat?

I am testing my openvpn server by netcat, and I found this answer: How to check that an OpenVPN server is listening on a remote port without using OpenVPN client? by send a magic string ...
0
votes
0answers
141 views

OpenVPN networks conflict

When having an OpenVPN instance working fine I'm having troubles with networks conflict in some specific circumstances. The setup is as this: tun-mode clients' network in OpenVPN: 172.16.159/24 ...
0
votes
2answers
273 views

OpenVPN Allow Servers to talk to VPN Clients

I have setup a VPC in Amazon with 2 subnets. The public subnet has a ip range of 10.0.0.XXX and a private subnet with a ip range of 10.0.1.XXX my OpenVPN sits on 10.0.0.100 and hands out ip from the ...
0
votes
3answers
1k views

OpenVPN - Client traffic is not entirely routed through VPN

I installed OpenVPN on my dedicated server. Using Viscosity or Tunnelblick on the client, I successfully connected to this server. However, after some tests, I realized that not all the traffic ...
0
votes
1answer
116 views

OpenVPN - Windows redirect log to windows event log

Running OpenVPN as a service, How do I redirect the log (which defaults saves to \program files\openvpn\log or if --log is specified) to windows event logger. I don't want to store logs in more ...
1
vote
0answers
49 views

here filtering terminate TLS in openvpn but not ssl

I have configured an openvpn sever appliance on vmware and windows 2008 R2 and set it to use port 80 for openvpn, iphone and ipad could connect to it but windows and mac could't and generated error in ...
0
votes
1answer
153 views

OpenVPN Server subnet addresses conflict

Where I work we have the same subnet pool (192.168.1.x) that I have at home. Hence I can't reach to home's subnet addresses when connected to the OpenVPN Server. What's the best/easiest way to ...
0
votes
0answers
130 views

openvpn up script execute command in schroot

We would like to control a service in a chroot environment utilising scripts run during an openvpn up and down sequence. Host OS is ubuntu-12-04, chroot environment runs ubuntu-12-10 A session has ...
0
votes
3answers
244 views

Logging OpenVPN/PPTP connections

I currently have a default setup of OpenVPN and PPTP. I was wondering how I can enable the most verbose logging of the services so in case of abuse we can track down who's IP did what?
0
votes
1answer
211 views

Iptable forward configuration

I have OpenVPN and PPTP installed on a VPS. I'm having a few questions that I can't seem to get a firm answer on. I want to install OpenVPN on 1.1.1.1 (eth0, public IP address) and PPTP on 1.1.1.2 ...
0
votes
1answer
71 views

Running multiple site-to-site with openvpn

I'm planning to connect two offices in two diffrenet locations with Openvpn, here I know that I can use site-to-site for my purpose, But the offices will grow in the future up to 10 or more and all of ...
1
vote
3answers
628 views

How can I log OpenVPN packet contents?

I'm designing a developer tool that would analyse and debug arbitrary network connections, but I want to provide it as a service rather than software to be installed locally. Ideally I would like to ...
0
votes
1answer
181 views

Ensure PPTP / OpenVPN clients cannot interact with each other?

How can one ensure that PPTP / OpenVPN will not allow clients connected to the tunnels to be able to interact with each others? I never enabled bridging and enabled the following in iptables ...
1
vote
2answers
393 views

Default gateway and bridged interface

I have slackware based server with openvpn bridging, this is my settings of interfaces: root@senior:/# ifconfig br0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500 inet ...
0
votes
0answers
255 views

SMB share client side connection (Win7 with net use) is very slow

I have a SMB share on a CentOS server. Windows 7 based clients connect to the server via OpenVPN. Then net use is used to init the share. On some clients (not all) I am experiencing very long ...
0
votes
0answers
194 views

Cannot access Hyper-V machine via OpenVPN

We have an XP/SP3 Hyper-V machine running at Windows2012 Server. There is no problem to connect that virtual machine via mstsc or ping it from within our LAN. We have a branch in other city. They ...
1
vote
2answers
170 views

OpenVPN Endpoint to endpoint using the real IPs

I want to connect two servers to eachother over the internet. For various reasons I cannot use IPSec for this. I would like traffic to be transparently encrypted as if I was using IPSec transport ...
0
votes
1answer
457 views

Tomato/DD-WRT router firmware, how to restrict mac address to only allow openVPN client connection? [closed]

I want to estable a openVPN connection on one of my computers. But I want to make sure that the connection is secure by filtering everything except for openVPN. Therefore openVPN will be the only way ...
0
votes
1answer
257 views

How secure is OpenVPN on a public server

If I use a VPN Connection on a server that many others use as well for their VPNs, is there any chance they could sniff my traffic or see my packets as we are on the same local network? If so, how do ...
0
votes
1answer
212 views

Small Datacenter Setup - vCenter and OpenVPN

I, as well as two other students, are creating curriculum for a new datacenter course at our university. We have 16 Sun servers that are several years old with decent specs (2x Dual-Core AMD Opterons ...
0
votes
0answers
335 views

OpenVPN: Can't get clients connected

I just followed this tutorial for openVPN: https://help.ubuntu.com/12.04/serverguide/openvpn.html Sadly, I have trouble to get clients machine connect. This is the log of the client: Wed Mar 27 ...
1
vote
1answer
1k views

openvpn tcp or udp (specific situation, reliability-layer collisions)

My question is whether to use TCP of UDP for my openVPN connection. I've set up a simple network for a startup company that allows users from the outside to acces the network via an openvpn server (in ...
1
vote
0answers
250 views

OpenVPN: Run 'bridge-start' on boot before starting openvpn service (Ubuntu)

I've got OpenVPN working properly on my server, using bridge-start and bridge-stop scripts to create and remove network bridge, respectively. How do I set these scripts up to run bridge-start at boot ...
0
votes
1answer
115 views

OpenVPN to unite multiple servers

I have two physical machines (both Ubuntu Linux) located at different hosting companies. Now one machine runs virtual machines which clients can access through VPN (OpenVPN). What I need now is to ...
1
vote
1answer
573 views

OpenVPN connection works fine in Linux but not Windows 8

I have a server set up running Ubuntu 12.04 LTS and OpenVPN. When I connect to it using my home computer running Arch Linux the VPN connection works flawlessly. I can browse websites and watch videos ...
1
vote
1answer
149 views

Selectively route traffic to interface

I have set up a separate routing table (tovpn) #echo 200 tovpn >> /etc/iproute2/rt_tables Now I assign routes to it. Where 10.0.0.1 is the tun2 P-t-P and 10.0.0.2 is the inet #ip ...
1
vote
0answers
139 views

How to properly replace CA certificate when clients get it bundled in PKCS#12 containers?

I'm about to regenerate a certificate of my CA (maintained by OpenSSL) used mostly to provide OpenVPN access to the intranet for my clients. My question is related to this one — "Certification ...
1
vote
0answers
300 views

Static Public IP OpenVPN Client Needs to Accept Incoming Connections on His Public IP

I love serverfault, I have learned quite a bit from this website. Hopefully I can learn one more thing. OpenVPN Server has 30 Static WAN IP's each one has 1 user on it. Plus there is a main IP ...
2
votes
4answers
5k views

Check openVPN client connected Debian

How can I check if my Debian OpenVPN client is connected? Is there a specific command I have to run? Or can I read it from the logfile? Thanks. Edit: The answers below provide great value in ...
6
votes
1answer
3k views

How do I prevent TCP connection freezes over an OpenVPN network?

New details added at the end of this question; it's possible that I'm zeroing in on the cause. I have a UDP OpenVPN-based VPN set up in tap mode (I need tap because I need the VPN to pass multicast ...
0
votes
1answer
153 views

Redirect HTTP to HTTPS without a web server

I'm running an OpenVPN AS server on a VPS and the server itself has a web interface accessible through HTTPS. I'd like to redirect all HTTP traffic to HTTPS without having to install a web server for ...
1
vote
0answers
167 views

Virtualbox: Bridging Guest VPN within a Bridged Connection

I've been trying to figure this out for a few days. Perhaps the biggest problem with figuring out the answer is that there are no unique keywords that I can think of to explain the issue. I have ...
3
votes
2answers
652 views

Bypass openvpn for particular ip

My desktop machine runs Trisquel GNU/Linux 6.0 (which is basically a libre version of Ubuntu 12.04), and I use OpenVPN to connect to a commercial VPN provider for internet access. It currently routes ...
2
votes
1answer
2k views

openssl invalid CA certificate

I'm setting up server-to-server OpenVPN with a PKI infrastructure, and cannot make it work. I suspect it's something in the certificate chain, but I'm at a loss to explain how. I have an offline Root ...
0
votes
1answer
531 views

iptables forwarding port to internal IP

I'm using OpenVPN on a VPS which I want to forward incoming port 7999 from the external IP 198.23.248.150 to the internal IP 10.1.10.2 using iptables. I cannot seem to get the syntax correct and I ...
2
votes
2answers
999 views

Cannot run OpenVPN on port 53 (DNS Stops Working)

So I'm trying to get OpenVPN to work on port 53 - sadly this isn't working. I used IP tables to map port 53 to port 1194 (standard OpenVPN port) Here's what I run to do this: iptables -t nat -A ...
2
votes
3answers
3k views

OpenVPN disables WiFi adapter afer connecting; connects after re-enabling it but no VPN hosts connectivity

I want to connect from my Windows 7 Enterprise PC to OpenVPN server. I have OpenVPN client version 2.1.1 installed. I have currently two problems: 1) After I start OpenVPN GUI and connect the ...
2
votes
1answer
4k views

OpenVPN daemon fails to start — starting server manually returns no output

I am setting up an openvpn server on my network for the purposes of accessing devices remotely. I have generated crts and keys with the easy-rsa scripts and have configured server.conf correctly ...
0
votes
1answer
74 views

Creating a gateway server to pass all clients via VPN

This is really broad so tell me if I'm outside the scope of this site. With that said.... I want to setup an Ubuntu machine on my network which has an OpenVPN client installed configured to send all ...
3
votes
1answer
2k views

Routing setup for OpenVPN server on Amazon EC2

Software developer here, trying to get his sysadmin-foo up and running by setting up an OpenVPN server on amazon EC2 to access all the internal resources there. Here's how I envision that on a fresh ...
0
votes
2answers
89 views

Failsafe VPN solution?

I need to set up a VPN. I experimented with PPTP, but I got a lot of problems. VPN connection doesn't work behind some routers or mobile / wifi connections. So I'm looking for a failsafe VPN ...
2
votes
1answer
904 views

iptables rule(s) to send openvpn traffic from clients over an sshuttle tunnel?

I have an Ubuntu 12.04 box with OpenVPN. The VPN is working as expected -- clients can connect, browse the Web, etc. The OpenVPN server IP is 10.8.0.1 on tun0. On that same box, I can use sshuttle ...
0
votes
1answer
60 views

Does an OpenVPN client have to be the edge device?

I have a backup server I would like to use off site, and connect it to the site using OpenVPN. It would be behind a NAT firewall. Would I just need to give it an address on the same subnet as the rest ...
8
votes
2answers
12k views

Generate an OpenVPN profile for client user to import

Is there any documentation or resource describing how to generate and host a profile for an OpenVPN client to import? Ideally would like my users to not have to separately fetch a .zip file of the ...
2
votes
1answer
2k views

OpenVPN Site2Site using PFSense

i'm currently building a s2s VPN using 2 pfsense appliances (2.0.2). the tunnel gets build but i'm unable to route traffic from one side to the other, check my testlab: Okay, i build a fresh ...
0
votes
1answer
176 views

Running an email server on a VPN client, wanting traffic passed through for smtp, pop3,imap etc from vpn server.

I have a home broadband network which I also run an email server. As my provider won't give me a fixed ip address, and most servers refuse to accept smtp mail from dynamic ip ranges, I felt the simple ...
0
votes
1answer
118 views

Getting though firewall without VPN

I am trying to control geographically remote (Android) machines using VNC. Some of these machines are behind firewalls. I was planning on putting all these machines on a VPN and being done with it. ...