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Questions tagged [openvpn]

OpenVPN is a free virtual private network (VPN) client and daemon.

849 questions
20
votes
2 answers

How to make OpenVPN to listen both TCP and UDP ports

I've searched around and the only thing I've found is that "yes, OpenVPN supports connections over TCP", but I haven't found any way to coerce the openvpn server to listen the same port for both protocols at the same time. I've found some very old…
Braiam
  • 35,991
16
votes
1 answer

Changing OpenVPN device name

I have multiple VPN server software running on the same server, two of them (tinc and openvpn) are using the same /dev/net/tun devices and spawning a tunX iface. The later started ones will use tun devices from zero, so they're reusing each other's…
Quan Zhou
  • 163
12
votes
1 answer

How to use --auth-nocache with correct TUN/TAP in openvpn?

I do and get when I have the password file nordvpn.txt of permissions 700 in /etc/openvpn/nordvpn and declaring auth-user-pass nordvpn.txt in .ovpn files root@masi:/etc/openvpn# openvpn --auth-nocache lv2.nordvpn.com.udp1194.ovpn Options error: You…
Léo Léopold Hertz 준영
  • 6,928
11
votes
1 answer

Purpose of IP addresses on tun interface?

--ifconfig option, which configures local and peer IP address for point-to-point tunnel interface, is a mandatory configuration option for OpenVPN. However, what is the purpose of local and peer IP addresses? Only purpose I can think of is that one…
Martin
  • 7,516
8
votes
1 answer

How to check server.conf error for OpenVPN

I want to install OpenVPN server in my VPS. After configuration I run sudo service openvpn start, but failed to start. Is there a some kind of "grammar check" option for server.conf? I put the config file in /etc/openvpn/server.conf, and I'm using…
ironsand
  • 5,205
7
votes
1 answer

Redirect traffic from a OpenVPN server to an OpenVPN client running in the same device

I have a raspberry box running an OpenVPN server that I'm using as a way to connect to use my Pihole installation when outside my home network. This is working without issues. | HOME NETWORK/Pihole | (Remote client) …
Proto
  • 71
6
votes
1 answer

Change password in OpenVPN configuration file

I use OpenVPN via command line: openvpn --config acme.ovpn with the config file user-locked to my username. Is there a way to change the password that protects the private key in the config file?
dr_
  • 29,602
4
votes
0 answers

OpenVPN stops after a couple of minutes, seems to hang all system networking

I'm trying to create an OpenVPN connection. My colleagues using Windows have received a self-extracting executable that sets up everything, but I could recover the .ovpn and key files from their configuration. The .opvn says: dev…
xenoid
  • 8,888
4
votes
1 answer

How to configure OpenVPN to only listen on given interface?

How can I configure an OpenVPN server on a Linux machine to only listen on given interfaces? Are there any features like this in OpenVPN?
LanceBaynes
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4
votes
1 answer

forward vpn traffic to another vpn server

I have set up 2 VPN servers in 2 different locations (A running strongswan as server and openvpn as client; B running openvpn as server), And A and B is linked via openvpn. What I want to do is to make A route all client traffic to port 443 and 80…
JIA
  • 51
3
votes
2 answers

Why is the OpenVPN service stuck at 'activating'?

I tried to set up OpenVPN following this step by step guide. Now I struggle to start the server using sudo systemctl start openvpn@server the output of sudo systemctl status openvpn@server looks like this: * openvpn@server.service - OpenVPN…
mabu
  • 171
3
votes
1 answer

Route problem with OpenVPN

I've installed OpenVPN on a dedicated CentOS 7.2 server. On several clients I tried to use it, but there is a problem I've noticed that there is a problem with routes. Running traceroute 8.8.8.8 on client-side (once connected) returns : traceroute…
0xmax
  • 655
3
votes
0 answers

OpenVPN public IP on tun0 interface instead of vpn network

I can't access devices in local network behind openvpn client using public IP of VPN server. A little bit of information: Openvpn server (openVZ, Debian7) Opevpn client (raspberry pi 2 raspbian jessie). Everythink works fine, when I use other vpn…
Bartek
2
votes
1 answer

Openvpn clients can not access to LAN

Openvpn: clients connected to server = firewall; but can not access database in LAN I have 5 vlan: vlan 2: 192.168.12.0/24 vlan 3: 192.168.13.0/24 vlan 4: 192.168.14.0/24 vlan 5: 192.168.15.0/24 vlan 6: 192.168.100.0/24 All are LAN had been…
jimmy
  • 21
2
votes
2 answers

Allow clients in network to communicate to client connected via OpenVPN

Network topology is like this: OpenVPN Server: Private IP (eth0): 10.0.4.23/16 Public IP (eth1): 77.20.30.40/24 Routes: default via 77.20.30.1 10.0.0.0/16 (not routable, so no gateway) 10.8.0.0/16 via 10.0.0.65 On same private subnet we have…
Marko Todoric
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