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.

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OpenVPN tap interface not connecting to server public IP through tunnel

I have a server with 1 interface bridged to tap0. Also a client with 2 interfaces that have public Internet connection (eth1 and eth2) and a tunnel for interface 2, so I can send traffic through tap0 ...
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1answer
31 views

Convert one interface to a tunneled interface

I have a server with 2 WAN interfaces, eth1 and eth2. Each one have one router connected which gives them these IPs: 192.168.3.101 and 192.168.1.101. The thing is that I want to completely avoid ...
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77 views

Chain two VPN subnets via VPS

I need to chain two subnets via VPS according to this schema: 192.168.1.0/24 -> VPN client -> VPS <- VPN client <- 192.168.2.0/24 So I want to reach, for example, 192.168.2.2 from 192.168.1.0/...
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Apache Require ip and OpenVPN on the same server

I have Apache 2.4 and OpenVPN running on the same machine (Ubuntu 16.04 Server). I have a Virtual Host configuration and I am trying to restrict the access only for the clients connected to the ...
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38 views

site to site openVpn link aggregation with linux

I'm trying to improve access over VPN for a site office to the head office. Will the following increase single file download speed. Provide 2 WAN (NBN) connection at both sites. Dedicate each WAN ...
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1answer
22 views

Openvpn: Set specific default gateway for one staticclient

I would like to create a configuration in which one client is a default gateway for another one specific client. I have an openvpn server configured in client-to-client mode.Two clients are ...
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1answer
22 views

Strange routing behavior, Synology combined with OpenVPN

Essentially the setup I've got is WAN <-> OpenVPN running on OpenWRT running on WRT3200ACM <-> LAN -> Gigabit Switch -> RPI and synology The openVPN tun is working fine and dandy. I get an IP ...
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1answer
39 views

Setup Brand New OpenVPN to allow LAN Connection

So i'm new to openVPN, after setting it up, and connecting between client - server , i need both to allow LAN connection So my setup is as follow (as for now) Client is set on the 192.168.1.X ip ...
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1answer
29 views

I cannot access the website through the internet when openvpn is enabled

In the same server (windows server 2008 r2) we have dns, web server and openvpn. The server has a static IP address, which is used to access the website through the internet by the domain name. At ...
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OpenVPN vpn chaining

Background I have two networks: Home network Servers network My home's network contains a VPN server. My Servers network contain another VPN server. The only way to my computer to log into the ...
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1answer
84 views

SMA LCS tool through open VPN

I'm trying to make SMA LCS tool work through openVPN. Context The hardware Inverter Manager permits to manage the inverters. The LCS tool, is the only windows application (no other OS) which ...
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OpenVPN - high CPU even when cipher is set to none

When sending 125mbit/sec over OpenVPN configured to use cipher none, the openvpn process uses 25% CPU (on an i3-5010U CPU). What would cause it to use so much? Here are the config files: CLIENT....
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147 views

Cannot use public DNS to SSH to OpenVPN server when I am connected to the VPN

I have a strange issue with a new OpenVPN server. I've set up am OpenVPN 2.4.7 server on CentOS 7.7.1908, hosted in AWS. This is used to both have a single outbound IP address for various whitelists ...
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1answer
33 views

openvpn can't sudo within “down” script when shutting down systemd service

OS: Ubuntu 16.04.2 LTS My VPN config has directives: user ovpn group ovpn up "/path/to/my/script" down "/path/to/my/script" My visudo file has the directive: %ovpn ALL=(ALL:ALL) NOPASSWD: /sbin/...
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What information does an OpenVPN provider store about me [closed]

I was wondering what information is stored about me when I connect to an OpenVPN VPN provider. For example, can the provider know my operating system? I cannot seem to find any docs about this. ...
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Cannot route and connect to server lan through VPN

I have a Teltonika RUT230 that I'm using as a VPN server. So far, I'm able to stablish the VPN connection and talk with server, but I cant ping LAN network. Here are my IP's, note that these are only ...
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1answer
49 views

OpenVPN client pings, but will not resolve DNS

long-time lurker, first time poster. I have read almost every post regarding open-vpn on this site, but I cannot get this issue fixed. I can connect without issue to openvpn server and can ping ...
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38 views

Host unreachable if eth0 has no IPv4 in ethernet bridge

I am currently attempting to configure an ethernet bridging VPN with the use of OpenVPN. However, whenever I am trying to setup the ethernet bridge, the server (Raspberry Pi) looses connection from ...
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20 views

openvpn server source address wrong?

I'm trying to set up a VPN network on my server to create a tunnel to my Raspberry Pi in my local network. The goal of this was to reach a prometheus metric provider on it. The problem is that the ...
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1answer
14 views

Configuring an Site to Site VPN ,open VPN client on Pfsense and Azure will host Open VPN Scess Server

Dears, I am relatively new to Open vpn , by reading through forums i have tried may of the suggestions, but still not able to get it work. I am trying to have a Site To Site VPN , with Open VPn ...
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1answer
35 views

OpenVPN only redirect traffic that uses the openvpn network interface

I have a standard OpenVPN client setup on Windows 10 with this config (Windscribe VPN): client dev tun proto udp remote nl.windscribe.com 443 nobind auth-user-pass resolv-retry infinite auth ...
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1answer
24 views

OpenVPN - Cannot ping or ssh through vpn

I've set up OpenVPN 2.7, and can connect to the VPN just fine. When I try to ping or SSH to another server on the private network through the VPN, the connection times out. However, tcpdump on the ...
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36 views

DMZ over OpenVPN

I'm setting up an OpenVPN server. I want it to redirect any incoming connection (except for ports 22 (ssh) and 1194 (the VPN server itself)) to a client connected to the VPN. The VPN server will live ...
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37 views

Cant block specific ports for OpenVPN users

CentOS7.6 + iptables + OpenVPN2.4 (UDP proto) onboard. Question is duplicated and seems simple: I just want to block some specific ports for my VPN users. So I make iptables -I FORWARD -p udp -m ...
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openvpn make local network available to vpn windows server

I have a windows 2016 server running OpenVpn. I use tunneling. What I would like is to be able to see my local resources (printers/servers) from the TSE session on the VPN Windows server. If I do a ...
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1answer
37 views

OpenVPN works well with mobile data, but can not connect through ADSL

I've installed OpenVPN on a CentOS machine and created a user on it. Then I installed the client software on my PC and tried to connect to the VPN. The strange problem is that when I am using the ...
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NPS (Radius) Strategy understanding [on hold]

I have a little issue with the understanding of NPS strategies. I have an NPS Server and PfSense running : 1 ) a strategy for allowing "domain users" (all users) AD group to login into Captive Portal....
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26 views

Access services in a remote OpenVPN server network via local VPN-Client in docker container

I need all of the PC's in my local network to access a remote OpenVPN network. I am able to connect to the VPN network via vpn client installed on a docker container. My question is how do I forward ...
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OpenVPN: Accept multiple client for a single .OVPN configuration [duplicate]

Currently I am using this script to quickly setup an OpenVPN Server https://github.com/Nyr/openvpn-install I managed to get the client to connect to OVPN. However, If two client try to use that same ...
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OpenWRT + OpenVPN - connection to the VPN succeeds but can't ping LAN, can't ping outside

I'm setting up a VPN connection using OpenVPN client on OpenWrt. The client connects to the server, but I can't ping any network hosts using the tun0 interface Ping Examples: ping -I tun0 192.168.1....
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Configure IPs for site–to-site VPN

my vpn-client is connected to a VPN-server and the Client is in a 192.168.1.0/24 network. I have successfully setup an client to site VPN but I want to create a site to site VPN. I have read some ...
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1answer
53 views

OpenVPN traffic incorrectly routed outside tunnel when accessing server IP

My setup consists of a client and a server where the client is connected to the server using OpenVPN. It's configured to route all traffic through the tunnel. This works well, the ip is the server ip ...
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1answer
56 views

Need IPTABLES rules explanation about OpenVPN set up

I've got Ubuntu 16.04 and OpenVPN installed and seems to be working fine. But when I check firewall rules using "sudo ufw status", then I see this: Status: active To Action ...
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1answer
83 views

How to allow OpenVPN (W10) client to use DNS server (BIND9) that resides on (Ubuntu 16.04) OpenVPN server?

I have Ubuntu 16.04 (Desktop Edition) with OpenVPN server and BIND9 installed. I used a script when I installed OpenVPN. My OpenVPN client is a W10 netbook with 4G USB modem. When I choose to use ...
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11 views

Why OpenVPN clients cannot access private network?

I have been reading for days documents, tutorials, etc... and I cannot find the answer to this problem. As far as I can see, this is a usual problem with OpenVPN. And I know this question had been ...
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14 views

openvpn server on vps with multiple public ipv6 addresses

I have a virtual server with an ipv4 public ip address and a pool of ipv6 public ip addresses assigned to the various interfaces eth0: 2, eth0: 3. The interfaces are fully functional and there are ...
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31 views

How to use more than 64 remote options for a random-remote openvpn connection

I have a great list of servers that I would like to tunnel through, which would be selected randomly through the "random-remote" feature, however when I try to use my config with the servers added, I ...
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1answer
68 views

OpenVPN - Access to other client private network

I know that this title seems to be "over answered", but really I had no luck while searching... EDIT: I've updated the diagram and the question, to be more precise To better explain my situation, ...
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1answer
101 views

OpenVPN: Cannot open TUN/TAP dev /dev/net/tun: Operation not permitted

I'm have some trouble with OpenVPN reccently, OpenVPN server are hosted on a VPS. It had been work for few months but last friday I reboot and update and upgrade since impossible to connect from my PC ...
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1answer
169 views

Route traffic from one docker container through a VPN (provided by a second container)

I need to understand how to make two docker containers work with a scenario like this: There is a branch office with a router and a client. The network is 192.168.190.0/24 and the addresses are 1 and ...
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1answer
21 views

openvpn subnet conflicts with wifi subnet

When using openvpn at home, I have a very simple configuration file because my home subnet uses 192.168.1.* so when I run openvpn --config client.config my routing table looks like: Kernel IP ...
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1answer
83 views

tun0 errors when running a vpn server?

I'm running a simple vpn server with these softwares: OpenVPN Shadowsocks MTProto Proxy My server config is: Ubuntu 18.04 x64 512Ram, 1vCPU UFW firewall Netdata monitoring Nginx It's been only few ...
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1answer
27 views

OpenVPN on same server with proxy

I have OpenVPN server with clients with static IPs (192.168.1.0/24). When I access another device connected to VPN I get desired 192.168.1.2 static IP, however when I access proxy server on same ...
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Can openVPN plus easy-rsa CRL lifetime safely be more than 30 days?

Using easy-rsa with OpenVPN, the certificate revocation list, by default with the shipped openssl.cnf, expires every 30 days. Why is that such a short period, given that OpenVPN will not accept any ...
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29 views

CentOS 7: Bridge two interfaces inheriting the MAC address of one interface

I am trying to use OpenVPN in an Ethernet bridge mode. Following the manual, I created a tap interface, set up the configuration the way it was written in the manual. The only problematic part is the ...
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9 views

Connect OpenVPN clients to clients only (without server access)

I have setup an OpenVPN server (on Windows), that allows clients to talk to each other and the server, using client-to-client in the servers conf file. Now I want to restrict the clients access to ...
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23 views

openvpn: pass client's traffic through other interface than the one used for connecting to openvpn server

I'm trying to setup a raspberry pi running raspbian to act as a vpn server. I successfully installed OpenVPN and got it running following this guide: https://www.digitalocean.com/community/tutorials/...
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2answers
90 views

openvpn: crl has expired?

We have an OpenVPN in our aws setup which was set up by a client and now they are not able to connect to open vpn say "crl has expired" . We are trying to regenerate the crl but to do that we need to ...
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17 views

VPN connection between distinct cloud instances

What is the recommended architecture for establishing a virtual "local" area network across many servers located in many geographically distinct datacenters and clients (all running linux) through the ...
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26 views

TLS handshake fails when traffic goes through OpenVPN tunnel [duplicate]

I have an OpenVPN server in US and a client in Europe. When connected all traffic is routed through VPN tunnel. A problem has been detected - for some HTTPS websites connection fails. I will present 3 ...