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.

5060 questions
23
votes
4 answers

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 packets, which doesn't seem to be possible with tun…
Jason R
  • 428
  • 2
  • 4
  • 11
22
votes
7 answers

How to connect to a Juniper VPN from Linux

The Windows users have a new client "Juniper Pulse" to connect to the Juniper VPN server. On Linux, what VPN client do we have to connect to that Juniper VPN, with maximum compatibility? Please mention the necessary parameters that have to be…
Déjà vu
  • 5,546
  • 9
  • 36
  • 55
22
votes
4 answers

VPN client connect/disconnect via command line in XP

In an XP Pro workstation, is there a way to start the native Windows VPN client and open/close a connection from the command line so it can be scripted in a batch file?
nedm
  • 5,630
  • 5
  • 32
  • 52
21
votes
5 answers

Auto Reconnect VPN on Disconnection due to any reason - Persistent VPN

On windows server 2008,2012 or above I need to re-connect VPN automatically once it is disconnected due to any reason. It may be server restart, Manual command to Disconnect. Persistent VPN connection. Any work arounds
21
votes
10 answers

VPN Connection causes DNS to use wrong DNS server

I have a Windows 7 PC on our company network (which is a member of our Active Directory). Everything works fine until I open a VPN connection to a customer's site. When I do connect, I lose network access to shares on the network, including…
Bryan
  • 7,628
  • 15
  • 69
  • 94
21
votes
1 answer

How to set up strongswan or openswan for pure IPSEC with iPhone client?

I'm having trouble finding concrete, up-to-date information for how to set up strongswan or openswan to be used by the iphone's VPN client. My server is behind a budget linksys NAT router. I found this, but it mentions a whole bunch of .pem files…
Shabbyrobe
  • 567
  • 1
  • 7
  • 19
21
votes
2 answers

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 for a user/password. I use IPSec.
Dan
  • 343
  • 1
  • 3
  • 6
20
votes
5 answers

How to set up a VPN Incoming connection with Windows to tunnel Internet traffic?

I want to set up a VPN on a remote server to route all my Internet traffic for privacy reasons. I can set up an incoming connection and connect to it successfully. The problem is, I can just see the remote computer and no other Web sites will open.…
mmx
  • 482
  • 1
  • 8
  • 19
20
votes
2 answers

Is it possible for L2TP VPN to do auto route configuration for client during connected?

We've setup a L2TP VPN server with this tutorial, everything works like a charm. The only issue is We don't want client to route all traffic using this VPN, only a particular subnet, e.g. 10.0.0.0/20 On Mac, we need to set the route manually using…
Howard
  • 2,135
  • 13
  • 48
  • 72
20
votes
5 answers

Connect an iPhone to OpenVPN

Is there a way to connect an iPhone to our company OpenVPN server?
Marc
  • 405
  • 2
  • 6
  • 12
20
votes
13 answers

VPN within a Remote Desktop session

I connect to a server on my local network via Remote Desktop. I then need to make a VPN connection out to the internet from within that Remote Desktop session. However that immediately disconnects my remote desktop session. What's happening here and…
Dan
  • 521
  • 4
  • 8
  • 18
20
votes
3 answers

Multiple openvpn clients on one openvpn server

Can I have multiple openvpn clients connecting to a single openvpn server? The following setting works well for a single user This is the server configuration (openvpn.conf) port 1194 proto udp dev tun secret openvpn-key.txt ifconfig 192.168.2.1…
ServerDown
  • 372
  • 1
  • 2
  • 9
19
votes
1 answer

VPN: ERROR: Linux route add command failed

I have configured a VPN server local 192.168.0.250 dev tun proto udp port 1194 ca /etc/openvpn/easy-rsa/keys/ca.crt cert /etc/openvpn/easy-rsa/keys/server-vpn.crt key /etc/openvpn/easy-rsa/keys/server-vpn.key dh…
stecog
  • 985
  • 5
  • 11
  • 21
19
votes
8 answers

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 via a VPN connection? (I am asking this on server fault as it is as much about VPN servers than about the end-user PCs sleeping)
Ian Ringrose
  • 870
  • 1
  • 6
  • 12
17
votes
2 answers

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 traffic? And based on my config setup does all…
Jason
  • 3,931
  • 19
  • 66
  • 107