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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Alternative Cisco VPN clients for Windows XP

I'm considering investing in a Cisco ASA5505. As Cisco's own VPN client requires a service subscription, which I am trying to do without, are there any free or low-cost ipsec VPN clients that will ...
7
votes
3answers
12k views

VPN can't connect properly

have set up a vpn client on my laptop connecting to a openvpn server on a vps. It was working just fine until i restarted my laptop. I get this connection log in the VPN client: Tue Nov 01 19:25:26 ...
7
votes
9answers
3k views

Need prosumer router/firewall/vpn/vlan/nat advice [closed]

Looking for a recommendation on a device (or devices I guess) to do router/firewall/vpn/vlan/nat functons for my home network. Right now, I'm doing this with an IPCop box, but I'd prefer a little ...
7
votes
4answers
43k views

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 ...
7
votes
2answers
5k views

Windows Authentication behaves oddly when VPN'd

We've got a few apps that rely on windows authentication - a couple of web apps with AD auth turned on and we usually connect to our SQL servers with windows auth. This normally runs without a hitch. ...
7
votes
1answer
340 views

OpenVPN Client timing out

I recently installed OpenVPN on my Ubuntu VPS. Whenenver I try to connect to it, I can establish a connection just fine. However, everything I try to connect to times out. If I try to ping something,...
7
votes
2answers
4k views

IPSec VPN between Amazon VPC and Linux Server

I'm trying to set up an IPSec VPN connection between our corporate network and Amazon's Virtual Private Cloud, using their VPN system and a Linux server. Unfortunately, the only guide I've found ...
7
votes
4answers
6k views

How to automatically assign a route to client in Windows Server PPTP VPN?

Is there a way to configure PPTP VPN on Windows Server which automatically tells the client to add a route for the private network? I have to do it manually on every PC (once) using following command ...
7
votes
4answers
19k views

Windows VPN client connect on different port

Scenario: Two Windows Server 2003 machines running RRAS VPNs. The firewall port forwards 1723 to one of those machines for normal remote access. I'd like to find a way to connect to the second machine ...
7
votes
1answer
140 views

How does Windows decides which DNS Server to use when resolving names and connected to a VPN

When connected to a VPN network how does the windows DNS client choose a prefered DNS server, between the DNS servers configured for the local connection and the server statically defined for the VPN? ...
7
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2answers
6k views

Ubuntu Connect To SSTP VPN

Does anyone have any experience with connecting an Ubuntu 10.10 machine to a SSTP VPN server? I haven't found anything too great of information on how to do it.
7
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2answers
17k views

Connect to Cisco ASA 8.2 VPN with Android 2.1 L2TP/IPsec?

I am trying to configure my Cisco ASA 5510 running software version 8.2 to allow my Droid X to connect via L2TP/IPSec VPN. I have configured the DefaultRAGroup like so: tunnel-group DefaultRAGroup ...
6
votes
7answers
45k views

How to setup VPN on home network [closed]

I am a software developer. I travel and sometimes have a need to access my files at home and tweak other family members computers. I would like to connect to my home network via VPN and then RDP ...
6
votes
4answers
4k views

Why do VPN connections break when I sleep my computer? [closed]

On the limited (Cisco) VPN systems that I've used, the VPN connectivity is broken when my computer is put to sleep and must be re-established on wakeup. Is this a necessary property of VPN?
6
votes
2answers
301 views

Accelerating VPN speed using multiple connections

I have set up a VPS with openVPN running on centOS. The VPN works, but it's too slow. Is there a way to speed this up using open multiple connections like IDM or aria2? I'm using openVPN but I'm ...
6
votes
2answers
6k views

Force SSH connection through a different interface

I want to connect remotely using SSH. However, I'm not able to while my VPN is active, so I disconnect from the VPN and then connect using the other connection. How can I force the connection ...
6
votes
4answers
7k views

Problems with SCP stalling during file copy over VPN

I have a series of files I need to copy via SCP over a VPN to a remote linux server each night. The files are not large, we're talking about tens of megabytes here, but the file copy almost always ...
6
votes
2answers
2k views

stunnel vpn traffic and ensure it looks like SSL traffic on port 443

I am trying to make my outgoing and incoming traffic look as legitimate as close to SSL traffic as possible. Is there a way to DPI my own traffic to ensure it looks like SSL traffic and not OpenVPN ...
6
votes
1answer
4k views

strongSwan IPsec server with AWS EC2 VPC VPN client

I'm trying to create a VPN tunnel between 2 AWS regions. The way I'm trying to do this is by setting up a IPsec server in Linux with strongSwan in one region, and then a VPC VPN in the other region. ...
6
votes
5answers
47k views

Is there a Windows 7 compatible IPSec VPN client that allows protocol and port specific rules?

I'm looking for a Windows 7 compatible IPSec VPN client that allows protocol and port specific rules as well as an aggressive mode. On Windows XP and Vista we've used SafeNet SoftRemote in which you ...
6
votes
2answers
2k views

Very low TCP OpenVPN throughput (100Mbit port, low CPU utilization)

I am experiencing extremely slow OpenVPN transfer rates between two servers. For this question, I'll call the servers Server A and Server B. Both Server A and Server B are running CentOS 6.6. Both ...
6
votes
5answers
9k views

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 ...
6
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8answers
9k views

Force Juniper-network client to use split routing

I'm using the Juniper client for OSX ('Network Connect') to access a client's VPN. It appears that the client is configured to not use split-routing. The client's VPN host is not willing to enable ...
6
votes
2answers
4k views

pptp (pon) fails when called via cron (debian)

I have a pptp VPN link dialing from my (debian) linux server here, to an ISA2003 server at a remote site. The internet connection at (both) ends is somewhat dodgy, so I have written a little script ...
6
votes
2answers
1k views

VPN endpoint for my IPhone?

For my company I need to setup a VPN endpoint so that my users can securely login to my network. Can anyone recommend a good server side software product/solution that can allow my Iphones to ...
6
votes
1answer
9k views

Cannot connect to SSTP VPN - Unable to check revocation because revocation server was offline

I have been trying to set up an SSTP VPN to my SBS 2011 server and have been battling certificate issues the whole way. I've been able to generate a new certificate for my external vpn address, ...
6
votes
1answer
5k views

PPTP VPN iptables firewall issues csf [closed]

I am having a problem with iptables and a PPTP VPN, I have read related topics both on hear and online but still can't get it to work! I am trying to set up PPTP on an ubuntu server on our local ...
6
votes
3answers
7k views

Bridging VirtualBox over OpenVPN TAP adapter on Windows

I'm trying to configure a virtual machine (VirtualBox guest running Backtrack 4) with a bridged adapter over a VPN connection. The VPN is is hosted by the cybersecurity club at my university, and ...
6
votes
2answers
15k views

L2TP client for Ubuntu

It's easy enough to get a pptp client going on a Ubuntu 9.04 (Jaunty) desktop: sudo apt-get install network-manager-pptp However, I can't seem to find documentation find a corresponding L2TP ...
6
votes
1answer
3k views

Software VPN connection to Amazon AWS VPC private instance [closed]

I have a Virtual Private Cloud (VPC) instance on Amazon AWS. Inside the VPC, I have a private instance which is running the database and a public instance which has the front-end web pages for ...
6
votes
2answers
10k views

How do I prevent TCP connection freezes over an OpenVPN network?

New details added at the end of this question; it's possible that I'm zeroing in on the cause. I have a UDP OpenVPN-based VPN set up in tap mode (I need tap because I need the VPN to pass multicast ...
6
votes
1answer
1k views

RODC and remote site

I have a two-site domain (call them Local and Remote). Site Local has our main IT infrastructure, including two Active Directory Domain Controllers (2008R2). We're trying to set up an RODC at site ...
6
votes
1answer
9k views

How to route traffic from a VirtualBox VM only over a VPN?

I've got a VirtualBox VM (both host & guest Ubuntu Maverick). My VPN provider uses OpenVPN to setup TUNs. I'd like to set things up so that traffic from the VM only goes over the VPN and is just ...
6
votes
3answers
6k views

How can Bonjour be setup to function over a VPN connection using Mac OS X — Mountain Lion Server?

I purchased Mountain Lion Server for our office thinking that Bonjour would automatically enable any computers connected via VPN to see all computers and applications (such as Bento) running on the ...
6
votes
2answers
418 views

What is the best way to secure remote server/tool access from many locations?

I have a number of remote servers I lock down by restricting SSH to specific IPs. Equally, our internal customer admin tools are also locked down by IP. This is fine when working from the office but ...
6
votes
1answer
4k views

How to tunnel all Internet traffic via SoftEther?

My intention is to route all Internet traffic via a remote machine behind multiple NATs. The ISP's NAT servers are not under my control. I do control my own NAT server, which is a local router. Both ...
6
votes
2answers
3k views

Issue routing openswan vpn traffic beyond the server

Trying to set up a openswan based server sitting in an Amazon VPC cluster. The goal is to make it so we can VPN into VPC and have our workstations be as if they were on the network, more of a ...
6
votes
0answers
403 views

What does tracert make NETBIOS work on Win7?

This is really strange - I have a workaround for this (read on), but I'd love to know why it works. I had a VPN setup working fine with a WinServer2003 server and a Vista client. Then I setup a new ...
6
votes
1answer
5k views

L2TP/IPSec from Windows 7 to ASA 5520

I am trying to setup L2TP/IPSec on our ASA5520 to support a fringe case for one of our developers. The Windows VPN subsystem apparently stores the kerberos or NTLM cookie for the login when you use ...
5
votes
4answers
9k views

“Primary” DNS when there are multiple network connections

I have a machine that has a LAN network connection, which is used for internet access. This machine also has to be connected to a VPN connection. When the VPN is connected, Windows seems to ask the ...
5
votes
1answer
45k views

IPsec VPN site-to-site: How should I configure the ipsec.conf files on both sites to get the tunnel up?

What I am trying to do is to create a site-to-site IPsec VPN between my network and my friend's network. We both have a router and two computers on each router, with all computers running Linux. So I ...
5
votes
4answers
8k views

What is difference between OpenVPN and PPTP?

I know PPTP is based PPP, so what is the openVPN based on ? can the packets of openVPN be routed by ubuntu server ? thanks!
5
votes
6answers
2k views

Cheap and easy solution for VPN?

I would like to access my office-network from remote via VPN. My router is a Zyxel Prestige 600, and from what I have been able to google, does not support VPN in itself. What would be a cheap and ...
5
votes
4answers
2k views

What is the best VPN technology to implement in a SOHO setting? [closed]

Most firewalls/VPN appliances today allow you to select one of the various tunneling technologies available. The most popular are IPSEC and PPTP, although I've heard good things about OpenVPN. Is ...
5
votes
6answers
11k views

Why Can't OpenVPN GUI add routes in Windows 7?

Good-day all, I'm having trouble getting the OpenVPN GUI application to add routes to a Windows 7 client. I'm using the same config file I've used on a Windows XP client except that I added the ...
5
votes
6answers
13k views

HTTPS vs. VPN for communication between business partners?

A business partner has asked to set up a site-to-site VPN just so that a few servers can communicate with each other over HTTPS. I'm convinced this isn't necessary, or even desirable. To be fair it ...
5
votes
4answers
420 views

How secure is limiting site access by IP? [closed]

I'm currently developing software which requires various remote sites to securely connect to our servers to access a basic webapp. Up until now, I've been working on a client/server VPN setup - it's ...
5
votes
4answers
1k views

Why VPN when I can just use SSH keys?

A friend of mine installed VPN on our LAMP development server. Previously, we just used SSH and sometimes SSH public keys to avoid password prompts. My question is, what is the advantage of using ...
5
votes
4answers
1k views

Reaching a Linux server with a private IP without VPN

I'm working on a network where I can't obtain a public IP address or set up VPN access. Is there a way that I can communicate with a local server remotely by using an intermediary in the cloud that ...
5
votes
3answers
349 views

Network isolation with IPv6

It is my understanding that network address translation (NATing) goes away with IPv6. How do we isolate network resources to those that need them from the rest of the internet? I am specifically ...