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.

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Can VPN authentication be used for SSH?

Can VPN authentication details be re-used for SSH access? Context: I'm looking into the feasability of having SSO to authenticate with a VPN and then be able to log into a server via SSH without ...
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35 views

How do I make Docker forward a packet from remote when a packet from the dockerhost works?

I have set up a docker container with a vpn. I added another container with a Squid proxy using the --net option, sharing the same network as the vpn. Running a traceroute from within the container I ...
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16 views

VPN Server Disconnecting Hosts With Same LAN IP

When two hosts with the same local IP (e.g. 192.168.1.2) connect to the sonicwall L2TP VPN from behind two entirely separate gateways, one of the hosts gets bounced. I searched around and I think this ...
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34 views

Server 2012: How could I create a DHCP scope just for my RRAS PPTP VPN clients?

I am using Windows Server 2012, and the server in question is both the PPTP server and the primary DHCP server. My current setup has a DHCP scope for this location, and anyone remoting in is assigned ...
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26 views

OpenVPN Speed Slow

Background: I have an OpenVPN server running on my Netgear R7000 [openddwrt] router. My ISP connection is 50 mb/s down and 25 mb/s up. When connecting to my vpn from my cellphone, and windows ...
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22 views

Site to Site VPN connection is not established between cisco routers in GNS3

guys. In a Scenario I'm using sokootRtr1 as CA server and sokootRtr2 as CA client. As the following, both routers have their digital certificates; sokootRtr1#sh crypto pki certificates CA ...
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20 views

VPN via DNS to digital ocean VM

I'm hoping someone can help with some advice. I'm setting up some VMs on Digital Ocean to act as VPN jump boxes. I've configured my server to be accessible using VPN. I've tested this, and it works ...
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1answer
22 views

Azure point-to-site persistent connection

I have a situation where I don't have access to the firewall at one of our locations, so I have installed Azure point-to-site VPN client apps on the servers there. The problem (as I quickly found ...
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11 views

Can't enable TUN/TAP on VPS [duplicate]

I'm desperately looking for a way to enable TUN/TAP on a VPS in order to use an OpenVPN client. The VPS is based on Parallels Virtuozzo. I've been reading a ton of tutorials and forum topics, and here ...
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20 views

VPN , clients connect but no network

I have a Server Essentials 2012 server that has anywhere access enabled for VPN access, and web access. this has worked fine for a year with no problems that the occasional tickle would't fix. About 1 ...
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1answer
115 views

On windows 10, how do I setup a VPN client so that all users can use it (i.e. available before login)

On Windows XP, 7, 8, 8.1 you could tick a box that says 'Allow other users to use this VPN' when you initially connected the VPN. This option is no longer available - how do I set the VPN to be ...
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18 views

Site to site VPN from Amazon EC2 to Checkpoint device

I have an EC2 with Red Hat 7 in AWS and I need to connect it to a network via VPN. I followed the instructions here ...
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21 views

How to send lan traffic to bypass the vpn for android

How to send lan traffic to bypass the vpn, for that network 192.168.3.0/24 directly appealed to the wifi router, and do not through the VPN
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1answer
20 views

How to redirect traffic on vpc instance

I'm working with Amazon web services and I have a VPC with two instances one of the instances is running my app and the other one has a VPN connection to a payments system. The VPN tunnel is working ...
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1answer
29 views

Static routing between LAN, IPSec and VPN

I got the following network setup: LAN: 10.10.2.0/24 -> IPSec -> 10.10.1.0/24 (VPN Server addr: 10.10.1.5/24) VPN: 10.10.3.0/24 IPSec connection is transparent Users between 10.10.1.0/24 and ...
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5 views

Lightswitch App AD authentication over SSL VPN

I have a lightswitch App (desktop app for windows) which authentications with AD against their logged in account, so the user doesn't need to log in again. This works great in the office but over the ...
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1answer
54 views

What would cause inconsistent SSL failure over Cisco ASA VPN

Over the weekend I completed the installation and testing of a Cisco ASA 5512 to replace our old router/firewall. Today, I've been wrestling with an issue of browsers inconsistently failing to connect ...
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13 views

OpenSwan on Amazon EC2 - max number of retransmissions reached STATE_MAIN_I3. Possible authentication failure:

We are communicating with one of our clients over a VPN Tunnel. Openswan tunnel was working perfectly fine before. Today we attached an Elastic IP to the server and rebooted. Since then the tunnel ...
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3answers
470 views

How do VPN servers/clients avoid routing their own remote connection packets through themself?

I am trying to conceptualise how networking works under the hood for linux VPNs which use TUN interfaces. My current best guess is as follows (please correct me): Connection established to remote ...
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57 views

OpenVPN Access Server Site-to-Site Layer 2 Bridging. DHCP Issues

First of all sorry, my english is a bit sucky or broken at parts. I'm having a little issue with OpenVPN S2S Layer-2 Bridging and DHCP over the bridge. First of all, all clients no matter on which ...
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1answer
56 views

How to start and stop a libreswan connection

I have a connection configured on my libreswan instance on two machines. The connection start automatically when I start the pluto daemon, I have try other settings, but the connection also starts if ...
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1answer
28 views

Forwarding VPN from one router through another

I have been setting up the network for my workplace and would like to setup a VPN so my colleagues and I can connect from outside, but I have run into a bit of a snafu. The way we currently have our ...
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14 views

Branch Office Server vs VPN [duplicate]

Historically our branch offices have had their own servers to do DNS, Active Directory and a few other services. But the number of people working out of our branch office has shrunk to about 4 people. ...
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2answers
63 views

Routing in Azure between point-to-site and site-to-site networks

I'm new to Azure and trying to use VPN to connect a single machine here to a VM on Azure. The VM is on the newer Resource Manager platform. Unfortunately, only the classic platform supports ...
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25 views

How to allow separate Sonicwall Global VPN clients to reach one another?

I'm assuming that this should be possible, but I'm not entirely sure. Here's the scenario: 2 offices, both have SonicWALL TZ200s in them, and the two offices are connected together by way of ...
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27 views

Site to site vpn with one vpn endpoint behind NAT

I building an IOS <> Strongswan vpn between 2 host and following this exact guide: http://www.cisco.com/c/en/us/support/docs/ip/internet-key-exchange-ike/117258-config-l2l.html I use ikev1 since ...
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1answer
52 views

Routed traffic away from VPN has no internet (Fedora)

I'm very new to linux routing and such as a preface. I have a plex server set up on Fedora 22. I've recently started using a VPN service connected via OpenVPN. Everything works great via VPN on my ...
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1answer
24 views

Client to Site VPN Active Directory Sync

Hard question to word, but here it goes. I have a client with a W2k12 essentials Domain Controller that needs to replicate offsite. We have purchased another 2k12 server to mirror AD, which I've ...
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1answer
17 views

Two VPNs using same subnet, NAT not possible on the customers end

I have a problem with a couple of VPN's. I have looked at various similar questions, but most invariably suggest using NAT on the customers end. In my case that simply isn't possible, and I can only ...
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116 views

Running Cisco VPN Client after Windows 10 November Update

I had installed Cisco VPN Client so that I could connect to my client's VPN, and this was working great on Windows 10 (after many hacks) until the Windows 10 November update, which automatically ...
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42 views

How to set up routes and rules at Debian gateway to bypass VPN for certain hosts?

I built my own router running Debian 7, having two NICs: Internal ethernet, eth0: 192.168.42.0/24 External link to VDSL modem, eth1: 10.42.42.42/8 (address arbitrary, just used for PPPoE). I have ...
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27 views

RRAS IKEv2 Behind Router

I have an installation of Server 2012 R2 running that I need to deploy an IKEv2 VPN on. It's my way of accessing files at my office. The current setup involves a NAT Router (Just a standard ...
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50 views

Private DNS in VPN

I have set up a VPN. I have a web app running on Apache and I changed configuration files only to allow connections from 10.8.0.0/24 subnet. My goal was to distinguish connection made from inside of ...
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1answer
23 views

VPN connection between two computers both masqueraded by symmetric NAT devices [closed]

How to establish a VPN connection between two computers both masqueraded by symmetric NAT devices without a public IP? I suppose ICE technique with TURN or RSIP protocol should be used in order to ...
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1answer
58 views

Can't Ping other local ips on l2tp vpn connection, getting: ping: sendmsg: No such device

I have setup an l2tp client using xl2tp to connect to an l2tp vpn server. The server connection requires that the connection be setup WITHOUT ipsec. So I have set up a basic xl2tp connection. The ...
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1answer
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What are the ports needed for L2TP VPN on Mac OS X Server 5.0.15?

I'm configuring a Mac as a server with a VPN service. So, I opened the ports listed as used by VPN in Apple documentation: UDP 500 -> 500 (+ESP and AH) UDP 4500 -> 4500 Any UDP -> 1701 (I got to ...
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1answer
14 views

Windows Firewall - NAT to share VPN connection [closed]

I have a Windows 7 workstaion which has a permanent VPN connection to a supplier. There are several users who need to access the supplier's server from their own computers through this "gateway". ...
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32 views

How to set up VTI on Cisco router with dual ISP? [closed]

I would have dual ISP on both sites of VPN. How to set up VTI for VPN failover and redundancy?
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2answers
29 views

Rename VPN Connections via Powershell

I'm trying to batch rename vpn connections on my Windows 8.1 machine. I have no trouble modifying the server address with Set-VpnConnection, but I can't find a way to rename a vpn connection: First ...
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1answer
32 views

How to check whether a user uses a VPN connection on a my server? [closed]

I am administrating 10 servers and it seems like someone among the users is using VPN. I do not have root credentials but I can impose a control over the traffic. I want to check whether any of my ...
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71 views

Openvpn+Stunnel+SSLH Configuration

I configured my openvpn server with stunnel, sslh, apache servers on a raspbery pi2 jessie platform.It works fine on pc and no problems at all except android platform.(I can't figured it out.I'm using ...
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13 views

Using DNAT with IPtables

I am trying to figure out a DNAT issue and I am hoping I can get a hand. Basically I have a OpenVZ box that connects to my LAN via the SoftEther Client. What I am trying to accomplish is a way to ...
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1answer
23 views

Secure way of running OpenVPN in windows 7

Is there a more secure way of running OpenVPN GUI in windows 7? Currently we have to use the runas command and savecred. This is fairly insecure as it allows the user to run any application as admin. ...
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1answer
22 views

Two VPNS needing to use same IP Address [duplicate]

What is the best way to deal with this problem. I have a VPN set up on my firewall that runs from a server on my side to a Customer Site. It is configured as serverA on my side and 172.31.255.1 /24 ...
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15 views

Get floating ip from mmm to work on Tinc vpn on Ubuntu

I've got 3 ubuntu servers connected with a Tinc VPN right now. 2 servers are running mysql 5.6 db's, and the 3rd is used only as a monitor. We're using mmm to do the monitoring and assign a floating ...
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22 views

openvp client “spoofing” server with IPv6

An openvpn client (windows 64 bit -presumable windows 8-) is connecting my OpenVPN server normally. After connecting, it is routing all it's vpn related traffic through the vpn, natting (seems to be ...
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18 views

Ipsec not working, cannot ping from server

I have a ubuntu server with public ip and want to connect to some network with ipsec tunnel. I can establish the connection (tunel), but when I try to ping the internal network PCs, there is no ...
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17 views

VPN stop working - can't reach local resources

Masters, I have no more hair on my head, so please help to fix... Topology: - Standalon Windows 2008R2 Server with RRAS - dhcp relay agent - SBS2011 Many years this works fine. Few day ago ...
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16 views

Execute script/gpo via Microsoft VPN

I've put together a small script to install a piece of software that will help us in migrating to Office 365. It's successfully deployed to majority of the hard wired/wireless domain connected ...
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45 views

Configuring VPS as VPN client

I'm trying to achieve that all outgoing connections from my VPS would go through VPN. I've ordered a VPN from a provider and am trying to set up OpenVPN according to their guide ...