Questions tagged [vpn]

VPN is the acronym for Virtual Private Network - a network type that uses a the Internet to provide remote networks or single machines with secure access to their organization's network avoiding expensive leased lines.

A VPN is a private network that uses a public network to connect remote sites or users. VPN use virtual connections routed through the Internet from the company's private network to the remote user or secondary site.

VPNs encapsulate data transfers using secure cryptographic methods and other security mechanisms to ensure that only authorized users can access the network and that the data cannot be intercepted.

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Hyper-V Cut-n-Paste

I use Hyper-V on a development machine for multiple reasons and one of my biggest annoyances is that I can't cut and paste to/from the virtual machines. I've been through all the options and can't find anything that seems like it would allow this. …
Chris Shaffer
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What is the difference between AWS site-to-site VPN and AWS client VPN?

I know that site-to-site is using IPSec (layer 3), but client is using TLS (application layer). It seems like both are actually site to site vpns after reading articles/ docs online. I guess the protocol (IPSec vs TLS) is their only difference,…
Ben Butterworth
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How to Bond Two (Multiple) Internet Connections for Increased Speed and Failover

We are located in a rural area with two slow ADSL connections (3.5/0.5 Mbps) and wanted to improve connection speed and reliability by somehow "combining" them. The following describes our solution which so far works very well. This is therefore not…
legolas108
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OpenVPN low performance. Do I have MTU problems? Dumps inside

I have problems with an OpenVPN tunnel which does not reach line speed. The gateway is a Debian Jessy virtual server hosted at OVH. The client is either my freebsd 10.2 homeserver (Intel I3 Ivy Bridge) or my RaspberryPI2. I deactivated encryption…
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MULTI: bad source address from client - any one-off solutions?

Setup: I have the an openvpn client/server setup (config files at bottom), and I get the infamous MULTI: bad source address from client [192.168.x.x], packet dropped message at server. The server has a public IP address, while the client is behind…
m000
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Improving OpenVPN Performance

I've been trying to improve my OpenVPN performance and this is my current setup: cat /etc/openvpn/server.conf port 443 #- port proto tcp #- protocol dev tun #tun-mtu 1500 tun-mtu-extra 32 #mssfix 1450 tun-mtu 64800 mssfix 1440 reneg-sec 0 ca…
user192680
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Fortinet SSL VPN Client Setup Without GUI on Linux (centos)

How can I install and setup a fortinet SSL VPN client on a VPS that's running on Centos? I have problem to do it because all guide I have are all using GUI which is not installed on the VPS to save resource. (example:…
Calua
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What is TLS and how does it compare to SSL?

Is TLS the "new" version of SSL? What features does it add, or security issues does it address? Can anything that supports SSL support TLS? What would be involved in making the switch? Is the switch worth it? Why is it that emails are sent over…
makerofthings7
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Windows VPN always disconnects after < 3 minutes, only from my network

First, this problem has existed for almost two years. Until serverfault was born, I pretty much gave up on solving it - but now, hope is reborn! I've set up a Windows 2003 server as a domain controller and VPN server at a remote office. I am able to…
hemp
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How to configure StrongSwan IKEv2 VPN with PSK (pre-shared key)?

I'm looking for a configuration instructions for IKEv2 VPN that uses pre-shared keys instead of certs (those are different methods for tunnel encryption I'd assume?). I've followed this wonderful tutorial to get IKEv2 VPN working (with certificate)…
Dannie P
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Strongswan VPN tunnel between two AWS instances won't connect

I am trying to set up a VPN tunnel using StrongSwan 5.1.2 between two Amazon AWS EC2 instances running Ubuntu 14.04.2 LTS. Prior to using StrongSwan, I used open(libre)swan on an Amazon RedHat AMI, which worked fine. For some reason I can't even…
lobi
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Allow OpenVPN client to push it's own DNS servers, regardless of OpenVPN server's pushed dns?

There is an OpenVPN server running on a Debian and it pushes a DNS in the server config file: push "dhcp-option DNS 8.8.8.8" Is there an option to allow the users to change that DNS servers on the client side? Here is the catch, the openvpn server…
Dimi
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Is it possible to configure a reverse VPN tunnel?

Basically, my goal is to have a 100% portable and independent server. I'm building it using a Raspberry Pi powered by solar panels and batteries, and it is to be connected to the internet using a 4g hotspot. It only needs to have 2 functions, an SSH…
Nikita240
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ipsec verify on ubuntu Two or more interfaces found, checking IP forwarding [FAILED]

Ubuntu 14.04, Openswan U2.6.38/K3.13.0-30-generic When I run ipsec verify I get this error. Two or more interfaces found, checking IP forwarding [FAILED] I see quite a few of this same question floating around. Has anybody finally found…
user236822
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VPN server on Google Compute Engine with OpenVPN

I'm trying to use Google Compute Engine server as VPN server for all my traffic (I'm living in Russia, we have some issues with censorship here). There is mini-tutorial about VPN on GCE, but it's about network between 2 servers inside GCE and not…
OZ_
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