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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Is there a way to check is a machine is accessible from its public ip?

My purpose is to find out if a machine (here known as C1) is accessible from its public ip. A few details: C1 private ip: 192.168.0.14 . C1 belongs to LAN 192.168.0.0-255 netmask 255.255.255.0 ...
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1answer
290 views

OpenVPN 63 max clients limit?

I'm newbie in network/routing subject and I'm doing my first VPN server. While reading my server.ovpn file, I saw the line: server 10.1.0.0 255.255.255.0 So I though: looks like I can reach only ...
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1answer
246 views

OpenVPN-Connection as default gateway for another host in the same subnet

I would like to achieve to use my openvpn-connection as default gateway for another host in the same subnet. I have 2 Hosts in the same subnet, both of them with Ubuntu Server 14.04. Host A runs ...
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0answers
142 views

Access internal network via VPN

I'm quite the newbie when it comes to network admin, so please excuse my ignorance! I have what seems to be a fairly simple-to-solve problem (so I hope!) Inside my company, we run a Synology Server ...
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1answer
41 views

Openvpn and ssh which port can be accessed

Scenario: point to point openvpn between two machines (this implies that computerA and computerB have both public ip) If I nmap computerA (nmap -PO 192.168.0.10) the output shows that there are 22 ...
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1answer
29 views

How to “clear” IPs allocation?

my server is allocating 4 IPs per new key generated. I read in documentation that this is a normal behavior when using a /30 subnet (I'm not sure if I'm using this :roll: ) Anyway, I noted that I ...
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2answers
242 views

OpenVPN route remote traffic depending of the subnet

I achieved to setup an OpenVPN to route all the traffic through a remote openvpn server. The OpenVPN server have two interfaces : eth0 -> Internet access eth1 -> Private network : 192.168.1.0/24 ...
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1answer
3k views

Centos 7 and OpenVPN: how make them friends?

I'm trying to install OpenVPN server on Centos 7 and faced with next problem: [root@msk ~]# /etc/init.d/openvpn start Starting openvpn (via systemctl): [ OK ] [root@msk ~]# ...
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53 views

Routing with bridge and multiple taps

I have a server with VPS nodes and 3 dedicated servers in other DCs. I use OpenVPN with tun devices and policy routing for packets being routed to a correct server like this ip route add via 10.0.0.1 ...
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1answer
182 views

OpenVPN config for route some traffic through VPN CentOS 6

My server is using CentOS 6.4 64 bit and have 2 network adapter. 1st adapter have an internet ip: 192.241.190.x 2rd adapter is an LAN network with ip: 10.60.5.62 I installed openvpn and config for ...
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1answer
120 views

How to make Nginx try_files ignore the port the server listens?

I have a server running both OpenVPN and Nginx on port 443: I configured OpenVPN to run on 443 with the port-share option while Nginx runs on 4545. All of this seems to work except the try_files ...
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1answer
109 views

How to add password authentication to working OpenVPN server?

I have already working OpenVPN server, which connects 25 branches. Config is below. Our company has outsourcing developers, and they need to access servers in DMZ. How do I add N number of ...
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1answer
20 views

Why OpenVPN create keys with '-nodes' option?

I was reading about the parameters that OpenVPN build-key script uses to generate a private client's key (with OpenSSL) and I noted the parameter "-nodes". According to documentation, this parameter ...
1
vote
1answer
684 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 ...
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1answer
383 views

openvpn connection has established but cant ping the server

I have a openvz vps and setup a openvpn server, and I successfully connect to the server in my ubuntu 14.10 client. server.conf: port 1199 proto udp dev tun ca ca.crt cert server.crt key server.key ...
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0answers
20 views

openvpn installation fails on debian squeeze [duplicate]

when I try to install openvpn on debian squueze 6.0.10 executing as root # apt-get install openvpn I get the following error: # apt-get install openvpn Reading package lists... Done Building ...
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0answers
42 views

Share local area connection with multiple TAPs

I'm setting up an VPN server. In this server I want to have 2 different encryptions (1024, 2048), each one in different ports. So I created 2 TAP adapters, and shared the local area connection with ...
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1answer
164 views

OpenVPN tls-verify with batch script

I want to execute a batch script to verify if the common name of the user is present in some TXT file, if yes, authorize the connection, otherwise deny. My server.ovpn is: local IPADDRESS mode server ...
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1answer
1k views

How to route only specific openVPN traffic through a openVPN based on IP filtering of the destination? [closed]

I noticed a DNS proxy service I saw utilizes openvpn and tunnels supposedly only DNS traffic through the VPN which masks the users of the VPN's geolocation and allows the users system to use their ...
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0answers
44 views

OpenVPN network topology

I'm part of a very small startup and as such I have little money for infrastructure, etc. I need to roll out a OpenVPN service so some employees can VPN in while on-site. To give an indication of ...
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0answers
154 views

Remote client (android) can't connect to OpenVPN sever behind LAN

My plan is to connect over tunnel (via Internet) android phone with my LAN at home. I set up OpenVPN server behind (router) lan (ip adress is 192.168.1.3). There is also my laptop. Port 1194 UDP on my ...
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0answers
331 views

OpenVPN Access Server can't ping it's clients

As a proof of concept, I'm trying to configure an OpenVPN Access Server (AS) with two clients on respective private networks. The goal of the experiment is for the clients to communicate with each ...
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1answer
91 views

OpenVPN + Samba share not working on very fast connection

I have a server running ClearOS with OpenVPN and Samba shares (flexshares) enabled. Client machines are able to connect to the OpenVPN server from a remote location, and are able to see all shares on ...
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0answers
61 views

Printer on OS X not printing across VPN subnets

I have an interesting situation where I have a two servers that connect two subnets via a VPN. One side is 192.168.0.0/24 and the other is 192.168.1.0/24. Communications appear to be working okay. I ...
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1answer
34 views

Can OpenVPN routes be stored in a database?

I'm trying to develop a simple custom intranet web-based tool to manage OpenVPN routes so that they can be added and removed without having to edit the config file. Is there any way to make OpenVPN ...
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1answer
55 views

How to know which user is connected to the OpenVPN Server?

I'd like to learn which user is connected to the OpenVPN server and the user is authenticated through certification. How can I do that? Is that possible to match the users and their certifications ...
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53 views

OpenVPN Radiusplugin AD and the user restriction

Im using FreeRadius which is using Samba4 (AD DC) as the user/password provider. OpenVPN is using Radiusplugin, which use that FreeRadius Server for authentication. This solution work great, but I ...
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0answers
17 views

Encapsulating VPN tunnels on Linux

I'm playing with python and networking and I want to write a program that allows me to select one of several VPN connections and encaspulate them within each other. That is to say, if I have VPN-A, ...
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44 views

OpenVPN and adding .p12 cert

Is there a way to add the .p12 type of cert to the openvpn config file? I've read and learned how to add the other files like so: <ca> -----BEGIN CERTIFICATE----- # insert base64 blob from ...
0
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1answer
96 views

Forward traffic to VPN

I have several servers I want to put on a VPN. I've set the VPN up with OpenVPN and that's working fine, each machine can access the other servers on the VPN. My issue is I would like to somehow ...
0
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1answer
138 views

Route all traffic through VPN

So I have one VPS (based on openvz) with VPN (openvpn) up and running. I'm connecting to this setup with laptop (archlinux) and everything seems to be working. Let's say that vps's ip is 192.0.2.4. I ...
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2answers
1k views

OpenVPN: How to mitigate path MTU issues on a per-client basis?

We have dozens of embedded devices installed at customers, all calling home to our OpenVPN service. That works fine in general, but a few of our customers have severe path MTU issues. Our influence on ...
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1answer
177 views

OpenVPN Access Server connects and can browse all other ports than port HTTP and HTTPS

Hello dear Serverfault experts, I have a very frustrating issue with my recently installed OpenVPN Access Server ...
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0answers
166 views

Setting Up Policy Based Routing For Openvpn

I am trying to run a server that is connected to a vpn. I want to route some of the traffic through the vpn and some of the traffic outside of the vpn. More specifically, I want all traffic to go ...
0
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1answer
137 views

OpenVPN cannot connect to local machine that has two NIC cards

This is my first time EVER posting to these forums. Most of the time when I have an issue I can usually solve them by searching forums/Google. But this one issue has me stumped! My company just ...
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0answers
37 views

Secondary floating IP on TUN/TAP interface

I'm currently working on a HA Cluster implemented using Corosync 2 and Pacemaker and I've run into a network limitation beyond my control that prevents me from implementing floating virtual IPs. Now ...
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1answer
50 views

Openvpn, two tap network adapters

I have installed openvpn client on my pc (windows 7) and I have two tap network adapters. In this way I can open two openvpn connections at the same time. What I would like to understand is how it's ...
1
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1answer
114 views

Openvpn authenticating to multiple AD domains

I've a site with openvpn server on linux authenticating users against Active Directory (domain A) everything working fine. Now company has a different AD domain (B) with "Trust" setuped to original ...
0
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1answer
65 views

Is netbios required with samba -> win7 and what ports are needed for view/read/write functionality?

Basically I do an IT course at my college (United Kingdom) and obviously with it being a college, they have web filters and a restrictive firewall. To bypass the web blocks and to access my rented ...
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1answer
175 views

What is the meaning of “/usr/bin/ip route add 180.151.157.4/32 via 0.0.0.0”

In the process of setting up a VPN client side, openvpn tries to add a route but it fails: /usr/bin/ip route add 180.151.157.4/32 via 0.0.0.0 RTNETLINK answers: No such device The reason why we add ...
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0answers
445 views

site-to-site OpenVPN tunnel with PFSense + CARP enabled causes regular drops

I have two datacenters, and in each datacenter I have two pfSense 2.1.5 servers running in CARP failover mode. I've established a OpenVPN, shared-key tunnel between the two datacenters, pointing at ...
2
votes
1answer
170 views

OpenVPN redirect-gateway breaks other tunnels

This is my ifconfig setup: eth1 Link encap:Ethernet HWaddr 54:04:a6:49:99:16 inet addr:192.168.0.12 Bcast:192.168.0.255 Mask:255.255.255.0 inet6 addr: ...
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0answers
49 views

openvpn peers can ping network but not reverse

In a nutshell, I have two libvirt/kvm hosts on which I have virtual machines running. The hosting company that these machines are with cannot provide any sort of virtual network between these ...
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0answers
53 views

openvpn bridge works, but I can't get any other server on the network

I was configuring openvpn server, and I got the keys and the connection to work pretty fast. However, I can't get the client to connect to other instances in the vpn network, which defeats the whole ...
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0answers
104 views

DD-WRT OpenVPN Client Router not routing

I have been trying all weekend to solve this and unfortunately no success. I have a DD-WRT installed router, which is intended to be a gateway or tunnel to an OpenVPN server via the internet with the ...
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0answers
115 views

OpenVPN + Scrambled patch on Amazon EC2

Yesterday I deployed a regular OpenVPN installation on Debian Squeeze / Amazon EC2. The VPN server is in Singapore and I connect to it from China Mainland. Later on, after some tests I had to start ...
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2answers
396 views

OpenVPN - can I use an existing SSL certificate?

I want to setup OpenVPN server for my personal usage. I own domain and I have valid SSL certificate for this domain (issued by StartSSL). At the beginning of the setup instructions for OpenVPN ...
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0answers
511 views

OpenVPN --route-up Missing environment variables when passing to script

I'm diving into the glory of OpenVPN and I'm having a bit of trouble manually configuring the routing tables. I'm on Arch Linux. I know OpenVPN automatically updates the routing tables when ...
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0answers
460 views

Client successfully connects to OpenVPN server but with no internet access over the VPN

I'm trying to setup OpenVPN with static key authentication(instead of TLS) on TCP port 443; but the client cannot access the internet over the VPN after connecting to the server. Here's my current ...
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0answers
221 views

OpenVPN - Http proxy - connection reset

I am dealing with a problem in OpenVPN (I think so) and maybe someone can help to sort it out. I am connecting to the internet through a HTTP proxy server (10.0.0.1:8080). As I set manual ...