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 Timeout when connecting
I have followed instructions here (with slight adaptations, as listed below) to set up OpenVPN on an OpnSense router, but clients are not able to connect.
Differences:
I set Local port to 1179
I set ...
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Unprivileged LXC - Cannot set tx queue length
I've installed and configured OpenVPN server on unprivileged LXC.
Everything works fine except for one problem/warning:
Cannot set tx queue length on tun0: Operation not permitted (errno=1)
My tun0 ...
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OpenVPN setup with MS authenticator
I have set up openvpn with active directory authentization in our company.
Now I set up microsoft atuhenticator (in pam.d with pam_unix.so and pam_google_authenticator.so).
It is working fine.
Is some ...
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Open vpn - connection timeout
I have problem with establishing vpn connection.
here is my server.conf
#################################################
# Sample OpenVPN 2.0 config file for #
# multi-client server. ...
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Restricting "auth" hash function OpenVPN will use for HMAC
We have a few OpenVPN 2.5 servers running on VMs, simulating some scenarios a product of ours have had to deal with. We run tests against them. One of these scenarios is a server that would only ...
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ssh to the same server of openvpn, tries to connect with original IP instead of VPN IP
I'm using ubuntu Linux 22.04.3 LTS with OpenVPN 2.5.5 and i have ssh server installed there too.
i want people to be able to connect to that server by ssh only if they are connected to the VPN.
that ...
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Configure OpenVPN with existing certificate
I want to configure OpenVPN with available certificates, without using easy-rsa.
I use openssl to generate private.key and csr.csr. Then I use opensource CA EJBCA to authenticate csr and create a ...
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Why do I get ECONNREFUSED|ECONNREFUSED for an openvpn server, after doing easyrsa gen-crl?
My OpenVPN server has been working perfectly fine on an Arch Linux install. I've done regular pacman -Syu updates over the past year, every now and then I've had to run:
easyrsa gen-crl
When the ...
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OpenVPN Server on K3s Kubernetes Cluster: No Internet Access
I've set up an OpenVPN server on a K3s Kubernetes cluster. While I can successfully deploy the OpenVPN server pod and connect from a client machine, the client doesn't have internet access through the ...
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OpenVPN Revoke a certificate without the CRT file with Easy RSA
I'm confused, I have an OpenVPN server on Debian. The previous system administrator who was in charge of this server deleted the user certificates (.crt file) with the command "rm -f example.crt&...
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Routing Issues with OpenVPN, Docker Compose, and NAT
I have been struggling with this for more than two days with this networking
and docker problem. I have the following setup:
Server hilux: Has an OpenVPN server serving ips in the range 10.160.0.0/16....
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OpenVPN - Server cannot access devices in client's LAN
I have an OpenVPN server (10.1.0.0, 255.255.255.0 VPN subnet) and a client with a local subnet of 192.168.1.0 255.255.255.0.
Server VPN IP is: 10.1.0.1
Client VPN IP is: 10.1.0.2
Server local IP: 172....
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Managing and Securing OpenVPN Routing: Controlling Client Access to Subnets
In OpenVPN, the server.conf file can distribute a routing table, for example, I only distributed two subnets:
route 192.168.1.0 255.255.255.0
route 192.168.18.0 255.255.255.0
But clients can edit the ...
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How to auto-reconnect OpenVPN on Windows
I use OpenVPN software on Windows and notice that when internet drops and resumes, the client would remain disconnected. Every time I have to manually click 'Reconnect' on the panel to recover the vpn ...
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OpenVPN - Route specific clients to use VPN only
I have an Asus RT-AX53U VPN router and I only want to route 2 clients to the VPN and the rest of the clients to bypass the VPN and go direct to local internet.
This is my OpenVPN client file.
dev tun
...
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Is there a significant difference when virtualizing a VPN server?
Basically, my question is this: I have a "server"(a regular PC) with Debian installed. On this machine, I need to have a Tomcat service running at the same time as a VPN server service.
To ...
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OpenVPN hangs on “Initialization Sequence Completed” on Ubuntu, but works fine on Windows
I have strange situation with OpenVPN on Ubuntu Desktop 22.04.
Same *.ovpn script works very well on Windows 10, but hangs on Ubuntu.
Server config:
# Which local IP address should OpenVPN
# listen on?...
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Openvpn Windows Connected, but can't access any server/site
I have a Ubuntu server, with openvpn server and a web server over nginx,
my android client connect to vpn and can access to web server with ip 10.8.0.1, but windows client with same Ovpn profile ...
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Openvpn forward all traffic not working unless I flush iptables
I want to run an openvpn which forwards all traffic, but it only works when I flush my iptables rules. Can someone tell me which rule(s) are causing the problem?
iptables-save output:
*nat
:PREROUTING ...
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Very strange behavior of OpenVPN between two sites
We've got a OpenVPN configured with layer2.
It is connected to a BGP router which announces a /24 IPv4 and a /29 IPv6. The purpose of the VPN is to redistribute IPv4 and IPv6.
However, recently I have ...
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Best Practices for Setting Up Multiple OpenVPN Instances for Different Clients
I'm working on a project where I need to set up OpenVPN instances to connect IoT devices from various customers to a central server. Each client should have its own isolated VPN connection. I'm ...
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Is it possible to setup a VPN that passes multiple ports through a single port tunnel?
I am looking to set up a VPN (possibly OpenVPN) to allow a computer connected to the internet through a restricted university network to connect to the wider internet through my home network.
My ...
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OpenVPN Gateway and Server Routing
Network Layout
The above network diagram shows a VPN gateway setup. When the VPN is active I can ping Network 1 from Network 2. I can't however ping Network 2 from any device on Network1, including ...
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CA-Certificate and Server Certificate are expired! - openVPN - Server <--> Client(x)
I am hosting an openVPN-Service to connect ~30 IoT-Clients directly to my Server. I have forgoten to extend the lifetime of the self-signed ca.cert and the server.crt. Now my openVPN-Clients could not ...
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OpenVPN server with an OVPN client added to reach networks on another server breaks IPv6
I have a running OpenVPN server which provides clients connecting with IPv4 and IPv6 which works. I am trying to add an OpenVPN client to this system which connects to another OpenVPN server which can ...
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Adding static route between two VPN servers
I have two VPN servers (Wireguard and OpenVpn) and my goal is that the clients connected to both the servers should be able to communicate between them. Say laptop A is connected to wireguard VPN ...
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OpenVPN can connect but can not ping any server and internet traffic fails
So this is a weird one. I have dozens of OpenVPN servers hosted on a pfsense server 2.4. I recently ran into a problem where the a single client can connect but can not ping the router or the openvpn ...
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OpenVPN static IP and reserve it
I build OpenVPN server, and topology subnet config is used. I also want to assign static IPs to specific user.
My question is how to keep this static IP from being given out to the rest of the users ...
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OpenVPN - Problems routing between clients in different subnets
I've been searching for many hours to try and solve a problem I am facing, but with no luck.
I have an OpenVPN (CentOS 7) setup consisting of a VPN server and clients, some of which are in different ...
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Best way of implementing a VPN for remote device management
Looking for thoughts on how to proceed with our remote management of hardware.
We deploy MileSight LoraWan UG65 gateways at our customers.
The tooling Milesight themselves provide for remote ...
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Privoxy and openvpn in docker
for one project purpose I want following. On rpi I want make proxy in docker. I install privoxy and openvpn in docker. When I start docker and start privoxy, everything works normally (I configure ...
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Multiple Site-To-Site VPNs to one OpenVPN Server
I am struggling to setup multiple site-to-site vpns.
I have 3 sites:
Site A: OpenVPN Server, inside OPNsense, IP Ranges: 192.168.10.0/24
Site B: Asus Router with Fresh-Tomato, IP Ranges: 192.168.20.0/...
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OpenVPN Broadcast on Tunnel Network
I need some explanation about the post subject: my scenario is described in the linked image:
https://ibb.co/Qfx8642
I've an APP for smartphone that should communicate with the End Device, I've make ...
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OpenVPN Site-to-Site Routing
I've been trying to set up an OpenVPN site-to-site tunnel for 2 days and I'm currently stuck with the following problem. :/
With the current configuration I can reach all servers in the client network ...
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VPN with Network Connections GUI - unable to access Internet
I am trying to setup VPN connection using Network Connections GUI. To do so I pick an option to import vpn configuration and manually enter VPN credentials. So far so good, I can get connected. The ...
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Stuck on OpenVPN Server with PiVPN: Can't Access GUI or SSH on PLCs – Need Guidance
I'm venturing into a bit of uncharted territory for me and need some assistance. I'm working on setting up an OpenVPN server on a Raspberry Pi using PiVPN, aiming to connect my work laptop remotely to ...
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OpenVPN headless on Debian 11.7 IP does not change
I have a ProtonVPN paid account.
I want to use it on my VPS server (so in headless), to change my ip.
Their client does not work in headless mode, so I use OpenVPN.
I download the Linux config file on ...
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VPN server+client without client-specific settings
I have SBCs with Debian. These SBCs will send data to server (using e.g. REST), but I want to secure the connection using some VPN/tunnel and I want also to be able to remote access the SBCs for ...
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MITM attacks inside VPN network?
Is it possible to use any MITM attacks (including ssh-mitm) if I'm connected to a VPN? OpenVPN connects me via tun0 interface with some IP in 10.0.0.0/8 and gateway at some IP 10.0.0.0/8. I know that ...
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OpenVPN connection failed
suddenly openvpn lost connection to server. The logs are following:
server logs:
Jul 21 00:07:40 openvpn 29858 100.90.2.29:62306 TLS Error: Auth Username/Password was not provided by peer
Jul 21 00:07:...
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Properly configuring iptables rules behind an openvpn server
hi friends hope everyone is doing well.
i got a little misunderstanding of how i should configure iptables v4 rules for an openvpn server.
if some wizard can give me a hint it would be great.
i'm ...
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Exposing a LAN through an OpenVPN server running in a virtual machine
There's an OpenVPN server running in a VirtualBox virtual machine with NAT networking. The VM is running on a physical host, and that host is attached to a LAN. I would like to make the VM's host's ...
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OpenVPN route to other local IP Address than PC
I have VPS with server OpenVPN.
iptables rules on VPS:
iptables -A PREROUTING -t nat -i ens3 -p tcp --dport 54000 -j DNAT --to 10.8.0.2:8080
iptables -A FORWARD -p tcp -d 10.8.0.2 --dport 8080 -j ...
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OpenVPN TCP connection to firewall failing: unknown error
I want to premise that I am not an expert in connectivity, firewalls, routers, and related topics.
For the past two days, I have encountered an error when attempting to connect to my office VPN ...
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How can I SSH locally into a server that is using a VPN?
How can i access locally through ssh to my orange pi that is running under a vpn provider?
I attach a draw how it is build the infrastructure, it's a simple hose connection.
The orange pi has a static ...
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open vpn iptables script intermittantly failing
I am new to vpn setup and iptables and i have a basic understanding of networking, but am by no means a networking expert.
I am setting up a openvpn router so that i have remote access to the plc's ...
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openvpn - iptables or nftables
Iptables has been around for a long time, but nftables seems to be picking up steam. I've noticed in newer distributions of Kubernetes images (aws, etc) no longer have the iptables kernel module baked ...
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Access Local IPs of VM after Connecting OpenVPN
I've basically trying for days to achieve this. So basically, simply i just want to connect to Local IPs of VM Once we are connected to VPN Client. All VPN Server and VMs are located on Same VLAN and ...
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58
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openvpn split-tunneling for a blacklist
I want all my internet traffic to go through the vpn, except a few sites (e.g. so I can stream shows normally, but run other things through the vpn).
My vpn provider gives me a .ovnp file. I should ...
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Inconsistent OpenVPN Authentication Issue: Works Locally but Fails via SSH
I am experiencing an intriguing issue when running OpenVPN on a Raspberry Pi 4 (running Raspbian 32-bit Lite). The issue appears to be related to the authentication process when OpenVPN is run via SSH,...
