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 my ISP know that I am connected through a VPN?

I have a general understanding of VPNs and how they work. However, I am not sure of how the initial request is seen by my ISP? For example say I am connected to an OpenVPN provider, what happens when ...
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6answers
12k views

Fortigate VPN client “Unable to logon to the server. Your username or password may not be properly configured for this connection. (-12)”

We're running a Fortigate 100D, and having some trouble with the SSL VPN via FortiClient. I installed FortiClient on an external Windows 7 PC a few days pack and the SSL VPN connected and worked. I ...
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3answers
962 views

Is a cloud-based domain controller behind a VPN feasible?

I'm considering setting up a windows domain controller in MS Azure within an Azure virtual network. Goal is to be able to centrally manage GPs and users. Is this even feasible, since the client ...
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2answers
1k views

OpenVPN DNS Fails to Resolve

I am connected to an OpenVPN server that is configured with the options to redirect the VPN as the default gateway and to push my internal DNS servers: push "dhcp-option DNS 192.168.1.2" push ...
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2answers
7k views

Connect to a Fortinet VPN with Ubuntu

I don't know a lot about VPNs but I'd like to connect to a Fortinet VPN with Ubuntu. I can connect on Windows using Forticlient just by entering the policy server (vpn.theserver.com) and then it asks ...
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2answers
6k views

How to make iPhone Cisco VPN client work with ASA with certificate authentication

I have an ASA that's providing IPsec VPN services using certificate authentication (no xauth, just the certs). It works perfectly with the Cisco IPsec VPN Client. Now I'm trying to let iPhones ...
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2answers
3k views

pptp (pon) fails when called via cron (debian) [solved]

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 ...
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5answers
2k views

SSH remote access vpn tunnel

I have two machines both running CentOS linux, one is public facing machine with a real ip address (foo). The other is at a client's site behind a very restrictive firewall and with no real ip and no ...
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1answer
1k views

What is the difference between Microsoft VPN and Cisco VPN

What is the difference between Microsoft VPN and Cisco VPN? Are they just separate implementations of the same protocol? I seem to remember hearing somewhere that they were not compatible with each ...
4
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1answer
222 views

High throughput meshed VPN to connect datacenter hosts

We're renting a number of hosts in a public datacenter. The datacenter does not offer private VLANs; all hosts receive one (or more) public IPv4/IPv6 addresses. The hosts come with very modern CPUs ...
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6answers
3k views

Free or very Cheap VPN server software with high concurrent users count [closed]

I'm hoping to implement a VPN whereby about 200 concurrent users can log in to briefly access my network. I had a look at OpenVPN and this seemed excellent, but was hoping that there would be a less ...
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1answer
3k views

Which ports to forward for a VPN server that sits behind a firewall?

Question pretty much says it all. From what I have found, it seems that port 1723 is the main port to forward, but I also see numerous references to others ports. The server that is hosting the VPN ...
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2answers
567 views

What should I use instead of MS-CHAP v2?

There's a new tool and service that makes it very easy to break MS-CHAP v2, which is used to secure VPNs. A good summary of the attach against MS-CHAP can be found at Ars Technica. Here's the way I ...
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votes
2answers
251 views

remote network access to LAN devices - VPN/LAN

I have several energy meters (with a web server embedded) distributed in many buildings, all these sensors are connected to the local network so that can be accesed through a browser to see the real ...
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votes
1answer
3k views

PPTP VPN iptables firewall issues csf

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 ...
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1answer
2k views

Simplest possible VPN to Amazon EC2 instance

I have setup an EC2 instance (Windows Server 2008) that I will let different developers connect to. Since I want the connection to be secure I am trying to setup a VPN connection to that machine, but ...
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votes
2answers
3k views

iOS/Mac-Compatible IPSec VPN Server on Ubuntu

I pay for a VPS from a Xen VPS host and the load on it is fairly light, so I'd like to run a VPN off of it. The configuration I'm shooting for is "roadwarrior"-style, as I'd like to use it to secure ...
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3answers
260 views

Optimal SVN server configuration for personal use

I have a desktop machine that is currently set up as an SVN server. Currently I have it set up to be accessible via http (using Apache), but only for the local network, as I wasn't confident in my ...
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2answers
2k views

Script logon to a 'Cisco' VPN in windows

I would like to sync my development database with actual data from the production databases on a regular basis (say, weekly). I already have the scripts to do this, and the amount of data is not huge. ...
4
votes
1answer
875 views

VPN server not responding, no indications of blocked traffic

I have a Mac OS X Server (10.9) machine running a L2TP/IPSec VPN server. Configuration appears to be fine, and the hostname of both the server and the VPN is set to a DynDNS hostname. The server is ...
4
votes
1answer
160 views

OpenVPN needs to change its port every time I use

I have a Linode VPS that I setup OpenVPN server on it. Since I'm in China we have to deal with the GFW (Great Firewall), so I use the VPN a lot. The weird part is, that every time I use it, I need to ...
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3answers
471 views

How can I ensure home VPN users don't save connection password?

We are using a PPTP VPN, on Windows RAS/Server 2003. We have users verify anti-virus patching, and then after verification grant access to the VPN. We don't use a CMAK applet, we just provide users ...
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2answers
1k views

Is there an SSTP (Secure Socket Tunneling Protocol) server available for Linux? [closed]

I'm interested in installing an SSTP VPN server on one of my Linux VPSes somehow, but as far as I can see there are only servers available built in to Windows Server. Is this correct or have I just ...
4
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1answer
202 views

Remote support via VPN without split tunnel

my title might not be very clear, but I'll explain my setup in more detail now. We have several customers (companies) that need to be remotely supported. At these customers we have servers running ...
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2answers
285 views

Sharing a VPN connection among several servers with certain IP ranges

I have an OpenL2TP VPN instance running to a company providing me with connections to cellphone modems in the 10.4.2.0/24 private IP range. This server is on the same private network as three other ...
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2answers
400 views

Login-time quota for VPN users

I have configured Routing and Remote Access Service in Windows Server 2003 as the VPN server. VPN users are defined in Active Directory which is running on this server too. How i can configure the ...
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2answers
1k views

IPSec VPN on Vista

My company uses IPCop to configure it's VPN. We have an IPSec script that runs on Windows XP to open a connection using a security certificate for authentication. Microsoft totally changed things ...
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votes
2answers
169 views

TCP connection through IPSec (Linux/Strongswan) stalls after exceeding PMTU

The backups (via Bacula) of one of my servers (“A”) connected via IPSec (Strongswan on Debian testing) to a storage daemon (“B”) don't finish 95% of the times they run. What apparently happens, is: ...
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1answer
4k views

Strongswan vpn tunnel connected but the traffic is not routed through it

I have just set up a vpn tunnel site-to-site with strongswan (4.5). The tunnel looks fine and connected to the other side, but seems there is a problem routing traffic through the tunnel. Any idea? ...
4
votes
2answers
2k views

OpenVPN connection works but no gateway is assigned

i try to setup openvpn on a vps and I'm able to establish a connection to the server, but the gateway isn't assigned to the client. Here are my config files: client config: client dev tun proto ...
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3answers
1k views

pptpd not working externally on Ubuntu Server 11.10

I am trying to set up a pptpd vpn on our newly installed Ubuntu 11.10 64 bit server, but am not having success having a client connect via an iPhone to the VPN. Note that no clients have been able to ...
4
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1answer
277 views

How to handle OpenVPN client as a service, when the laptop is physically on the network already?

The Setup I've gotten OpenVPN working on our Windows XP laptops. Users are limited, so I went ahead and set OpenVPN client to run as a service, which is great anyway because that means they are on ...
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2answers
3k views

Windows 7 VPN Client Default IPsec Configuration?

I'd like to use the windows vpn client for client-site vpn to my linksys rv042. As far as I can tell, the windows VPN client doesn't provide a lot of flexibility in its IPsec settings. Assuming full ...
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2answers
3k 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 ...
4
votes
2answers
2k views

How to connect MacOS X Snow Leopard to a Windows Server 2008 VPN?

My Windows PC can connect without problems to a Windows Server 2008 VPN at my office. Everything works. I set up the same VPN in my Mac with Snow Leopard. It connects, but I can't access any remote ...
4
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1answer
2k 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 ...
4
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1answer
715 views

Windows Server 2003 IPSec Tunnel Connected, But Not Working (Possibly NAT/RRAS Related)

Configuration I have setup a "raw" IPSec tunnel between a Windows Server 2003 (SBS) machine and a Netgear FVG318 according to the instructions in Microsoft KB816514. The configuration is as follows ...
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votes
4answers
2k views

Cisco ASA user authentication options - OpenID, public RSA sig, others?

My organization has a Cisco ASA 5510 which I have made act as a firewall/gateway for one of our offices. Most resources a remote user would come looking for exist inside. I've implemented the usual ...
4
votes
1answer
362 views

How do I setup a pentest lab for a univeristy? [closed]

I am working with a local univeristy which wants to teach students security. The modules involved using tools like Nmap and Metasploit on Windows and Linux boxes. However, as Windows has licensing ...
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votes
15answers
2k views

Replacement for Linksys WRV54G? [closed]

I work at a small company that has two offices, each with its own Business DSL connection to the Internet. In order to create a LAN between the two offices, my predecessor purchased and installed two ...
3
votes
2answers
479 views

Are all Virtual Private Networks in the 10.x.x.x range?

I am in the very early stages in planning a program for monitoring a VPN connection and am currently catching all ipv4 addresses from the adapters. When I am connected to my VPN it is always starting ...
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6answers
2k views

Creating a UNIX-based VPN: pointers, guidelines and pitfalls?

Does someone have first hand experience with creating a UNIX-based Virtual Private Network? What are the best VPN clients / tools available for accomplishing this? Are there any common pitfalls that ...
3
votes
4answers
6k 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 ...
3
votes
6answers
592 views

Quick and dirty VPN? (Linux to linux)

I have EC2 Ubuntu server which I would like to use as VPN gateway, I'm looking to do geoip targeting test and using a machine with US IP is a must. My client machine is Ubuntu 11.04. Any ideas, it ...
3
votes
4answers
162 views

Is there a general guideline to setting up Firewall policies for Small Business?

I understand that each Business has it's own needs and situation, but I'm looking for a general guideline to commonly blocked services and ports and other policies to be looking for when configuring ...
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2answers
2k views

Simplest vpn server for linux

I'm supposed to setup a vpn server on our linux machine for some of our employees who travel a lot. I have 10 ip's on that server so I'm looking into a simple software (not openvpn which is a hell to ...
3
votes
4answers
4k views

How serious is a problem is multi-homed networks?

Multi-homed is the term that I have heard for being connected to a LAN at the same time as being connected to the internet via something like a wireless connection. I have heard that this is so ...
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10answers
509 views

A VPN solution which requires minimum support for not technical users?

What is VPN solution which requires minimum support for not technical users? I need a solution which would not require lot support at least for windows users without technical knowledge. And could be ...
3
votes
3answers
196 views

Are there some drawback to create software VPN using virtual server instead phisical router?

I need to create a VPN through 3 geographical remote offices. I can buy 3 enterprise router with vpn support, or maybe i can create a VPN tunneling using 3 virtual server with (for instance) openvpn ...
3
votes
3answers
781 views

Small business VPN solution

I've been looking for a while but I'd like to to implement a vpn solution for anywhere from 1-5 employees at a time (possibly 10 in a year or so) edit: Basically I would like outside users to fire ...