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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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 ...
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2answers
5k 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
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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
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1answer
881 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
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2answers
408 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
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1answer
6k 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
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1answer
5k 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.
6
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1answer
3k 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 ...
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4answers
2k 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?
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4answers
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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!
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1answer
36k 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 ...
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6answers
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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 ...
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6answers
15k views

Can Wake on LAN work on VPN connection?

Is it true that we can’t allow any machine to sleep that may need to be accessed var a VPN connection? (I am asking this on server fault as it is as much about VPN servers as about the end user PCs ...
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6answers
11k 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
389 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
994 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
4answers
5k 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 ...
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6answers
3k views

Have one application use VPN while others do not in Linux?

I want one application to use a VPN connection while others do not. I'm using Xubuntu (thus XFCE) but I'd like a command line / static configuration solution if it's possible. Is it possible to ...
5
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3answers
303 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 ...
5
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5answers
8k views

Improving VPN performance - stronger encryption = more performance?

I have a site-to-site VPN set up with two SonicWall's (a TZ170 and a Pro1260). It was suggested to me that turning off encryption (so the VPN is tunneling only) would improve performance. (I'm not ...
5
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2answers
18k views

How to set up OpenVPN to let the VPN clients to access all the servers inside the server LAN?

My server LAN IP is 192.168.1.1 and there is an intranet web server on 192.168.1.2 The OpenVPN daemon is configured to give clients 192.168.2.* addresses. There is push "route 192.168.1.0 ...
5
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1answer
179 views

What is a “VPN Consolidator”

A client recently mentioned using a VPN consolidator for remote access to their server. I've never heard this term used before. Is it some type of slang that I'm not familiar with? I did a bit of ...
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4answers
32k 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 ...
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2answers
2k views

Differences between SSH's tunnels and OpenVPN

I discovered that recent OpenSSH has support for tun devices. When it comes to tunnels and VPNs, I always thought the main programme was OpenVPN. Are there any advantages to using SSH tunnels? What ...
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8answers
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Cisco VPN Client on Vista - Virtual Adapter

I have used the Cisco VPN client for years, and on XP it is pretty much rock solid, on Vista, not so much. You might be able to connect, but unless you set up a constant ping to something, it usually ...
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2answers
1k views

How to Configure Secure Connectivity between Multiple Subnets

I have the following setup 2 x linode vps 1 x lab (physical) running 4 vps My goal is to make it so all nodes act as if they are on the same LAN. This will allow me to alter IPTable rules, to allow ...
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3answers
3k views

How do I route a public IP range over an IPSEC VPN?

So, I have an established IPSec Site to Site tunnel. Site A has a SonicWall, Site B has a EdgeRouter. The first tunnel consists of Site A's NATed ips to Site B's NATed ips. Everything works as ...
5
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4answers
2k views

What's going on with this strange MTU?

I have a server mike at our office communicating with a remote server through a VPN. There have been various problems which seem to be linked to the MTU size. Mike is a RHEL 3 server and the customer ...
5
votes
1answer
4k 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 ...
5
votes
1answer
2k views

Direct connection between multiple clients on OpenVPN

I've spent my entire day learning about VPN, and have been working with following setup: 2 VPS Servers at the same data centre in Texas. (Texas1 and Texas2), 1 VPS in England and 1 VPS in Atlanta and ...
5
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2answers
5k views

Windows Server 2008 R2 as VPN Server

I'm going to be setting up a network at a data center and I was wondering if it's possible to have Windows Server 2008 R2 act as a VPN server. Also, I've heard there are 3 main types of VPN: PPTP, ...
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3answers
3k views

Making an ASA TFTP backup through VPN

I have a site to site VPN configured between two ASA 5520s. I have a TFTP server behind ASA1, with an IP of 172.16.1.1 on the "inside" network. I'd like to be able to copy the running config of ASA2 ...
5
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2answers
735 views

How to correctly configure DNS usage in Ubuntu? Authoritative answers without RA flag are ignored

I have latest clean Ubuntu 14.04.1 64-bit from official website installed in Virtualbox. I connect to a VPN network using vpnc that sets 2 DNS servers using DHCP: user@virtual:~$ cat /etc/resolv.conf ...
5
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1answer
10k 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? ...
5
votes
1answer
7k 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, ...
5
votes
3answers
10k views

Cisco 877 as a VPN server?

I have a Cisco 877 router which connects my network to the Internet using an ADSL line, a single public IP address and NAT; the IOS version is 15. Everything is working ok, but I'd like to configure ...
5
votes
1answer
1k views

Remove Server 2012 Remote Access Server

My IT director was walking me through setting up a Server 2012 VPN/RA server. We did not do this in our test environment, and now I would like to remove it. I know that when installing this server it ...
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2answers
183 views

Connecting to basic office network from the outside

Back Story: I work in the IT Department for a company that got its start by being given space to work out of from a warehouse when my company first got its start about a decade ago. Ever since then, ...
5
votes
1answer
7k 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 ...
5
votes
1answer
1k views

IPv6 over Cisco IPSec VPN?

We use a Cisco ASA 5505 as the firewall and IPSec VPN endpoint on our network. We use split-tunneling to reduce the load on our internet link. In other words, when someone is connected to the VPN ...
5
votes
1answer
318 views

VPN server on Windows Server 2008 for a small office

I'm going to refurbish the IT-infrastructure for a small organization with one single office, and I'm not sure what VPN server to use. In your opinion, would the built-in Windows Server 2008 VPN ...
5
votes
2answers
6k views

How do I setup virtual networking Xenserver?

I'd have a network like this currently. Basically, It's two Xenservers connected to our colocation provider's switch via one ethernet cable per server. Each server currently has a second ethernet card ...
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votes
2answers
1k views

Can't access database server over VPN

I am attempting to connect to an Oracle server via a VPN. I have tried to do so, unsuccessfully, from OSX and, alternately, from a Windows XP VM machine (VMWare Fusion) running on OSX. I can, ...
5
votes
0answers
346 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 ...
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1answer
4k 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
1answer
2k 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 ...
5
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3answers
76k views

Where can I download the latest 64-bit edition of Sonicwall SSL-VPN NetExtender for Windows 7?

Does anyone know where to download the latest edition of the 64-bit version of SonicWall SSL-VPN NetExtender for Windows 7?
5
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1answer
808 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
8answers
7k views

File transfer problems through VPN when Cisco IPS is enabled

We have a Cisco ASA 5510 firewall with the IPS module installed. We have a customer that we must connect to via VPN to their network to exchange files via FTP. We use the Cisco VPN client (version ...