a Virtual Private Network is a private network that is built upon a public network, typically using encryption for to secure the private communication.

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Is it necessary to use PEAP for L2TP/IPsec?

This is a sister question of Is EAP-MSCHAP v2 secure?. Based on my understanding, IPsec should have authenticated the server (we're using PKI) and secured the rest of the protocols before the user ...
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5answers
7k views

How is Facebook locating me when I use a VPN?

I am using a private VPN network for my internet connection. But it seems that if I go to http://m.facebook.com and try to check in, Facebook sees my location properly. My IP address seems to be from ...
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3answers
353 views

Can authentication in social networks through VPN defeat the purpose of the latter?

If a person uses VPN and authenticates herself to some social network through the VPN, doesn't she lose her anonymity for as long as the VPN session is used ? By losing her anonymity, I mean that her ...
3
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1answer
2k views

How can I detect if someone is using an ssh tunnel as a proxy to connect to a VPN?

I've got an SSH server setup in a remote location, which I use to tunnel traffic from an android tablet. On the tablet, I have the Cisco AnyConnect app to connect to my company's VPN. We want to be ...
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1answer
10k views

Configure OpenVPN as a local proxy to use it only when needed

First, I think it is the proper place to post my question (and not serverfault or networkengineering). If not, please tell me what's the correct place. I used FreeGate. I configured the Firefox ...
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1answer
313 views

Sniff HTTP(S) from PPTP VPN server

I've setup an PPTP VPN server on my Debian 7 server. I'm using this VPN in combination with my Android phone to ensure a secure connection. However, i'm getting curious of what my phone is sending ...
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2answers
406 views

Idea for hiding your mobile phones' location, and still be able to place and receive calls. Any suggestions?

The diagram below is a thought experiment that could provide a certain level of privacy to mobile (smart)phone users, beyond what they currently have. Some of it is purely theoretical, but it should ...
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1answer
340 views

Shall I enable 'send all traffic over VPN' on my Mac?

I want my Mac to be as secure as possible, but I don't know if the send all traffic over VPN option is safe or not. Please can someone explain if it is more secure to enable it or not.
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229 views

If someone has access to VPN and your computer, is there a point of using VPN?

If someone sniffs requests coming from my computer and my VPN's computer, there's no point using VPN, right? Because they can see the time when I made a request to my VPN and they can analyze all of ...
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1answer
620 views

How can I protect files on my personal home PC for when it is connected to my employers network via VPN? [duplicate]

I think my employer uses Citrix product to supply VPN. I have files in My Documents folder on my home PC that I would not want my employer to be able to access when I am connected over their VPN. I am ...
2
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2answers
977 views

ISP role with VPN & VPS?

I have notice online that many people get a VPN so that ISP can not view the sites you visit, create a profile of you and so on. Reading How safe is it to connect to Internet through VPN?, Jonah ...
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8answers
33k views

How does Google Maps know where I am, when I'm using a VPN?

How does Google Maps determine my location? I've gotten some understanding of Google Maps' geolocation methods from here: http://friendlybit.com/js/geolocation-and-google-maps/ In the newer ...
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2answers
1k views

How does VPN (IPSec) work?

Let's assume both, my VPN client and VPN gateway has public and private keys. I encrypt my request with VPN gateway's public key. VPN gateway gets the request, decrypts it with private key. Then, VPN ...
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2answers
670 views

Is setting up my own VPN more secure than buying from third party vendors?

When Googling for the most trusted VPN provider (for keeping your anonymity), some users say that the best way to go is to just setup your own (e.g., OpenVPN) using a dedicated server. How is this ...
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1answer
6k views

Is my information secure when using Private Tunnel? [duplicate]

I am using Private Tunnel to do some tasks involving sensitive data like logging in to PayPal and online banking. Is my data safe or can it be retrieved by other users of the Private Tunnel service?
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1answer
284 views

Can I use a vpn to securely use prototypes of webapps from my phone or laptop?

I want to experiment with web development (using django) for both desktop and mobile. Server, phones and desktops could all be part of the same virtual private network. The VPN will be from some ...
1
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1answer
195 views

how to continuously caputre all my network traffic? [closed]

I've got a Linux desktop that will be a gateway between my private network and the open internet. I'd like it to capture and store all network traffic passing through it continuously, 24/7 (until the ...
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0answers
120 views

Are VPNs using shared secret susceptible to trivial MITM attacks

I'm looking at a few VPN providers and many seem to offer L2TP VPN but they seem to share their shared secrets publicly on their website, for example : Goldenfrog ...
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1answer
240 views

Setting up a Secure Home Proxy for VPN Service Providers

VPN service providers such as ProXPN offer a service in which you pay a monthly subscription, allowing you to download an app for Windows or Macs so that your traffic goes to the internet via this ...
4
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2answers
172 views

Privacy/Security with SSH Tunnels and QuickVPN

I currently use QuickVPN, however, it does not seem to route my web browsing traffic through a tunnel. Am I correct? It only opens up a tunnel for accessing windows shares and documents back at the ...
27
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7answers
50k views

How can you be caught using Private VPN when there's no logs about who you are?

I know there are 2 services of VPN (free and paid). Normally, free VPNs need money from somewhere and sometimes they can sell your information to any agency that needs it. Now, if we are talking about ...
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2answers
336 views

Security risks of leaving open a VPN connection

We have older firewalls that don't allow for scheduling up/down times of VPN connections, and we're working with a client that will need to connect to it at different times each day. What are the ...
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2answers
951 views

What order is best for nesting VPNs?

if anyone is available to give me advice on a VPN situation I'd appreciate it. So the story is, I have one Swedish VPN which I trust not to log, and which I've connected to with my real IP, and I've ...
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0answers
26 views

MAC changer and VPN can be trusted? [duplicate]

I must spoof my identity for some reason. Are Technitium Mac Address Changer App on windows and VPN is a trusted way to be anonymous?
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2answers
382 views

Questions on IDS, IPS, VLANs and VPN [closed]

I have a network that has a single point of entry the WAN. The WAN exposes about 10 static IP's that resolve internally to servers that are in the same subnet. Meaning that if you RDP over 3389 to ...
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1answer
190 views

How does tunneling actually work?

I recently saw a question in which someone implied that tunneling could foil MITM even if it were implemented while an MITM was taking place. My understanding of tunneling is that it is only capable ...
3
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1answer
12k views

OpenVPN Tap vs Tun Mode [closed]

I would like to know practical difference between TAP and TUN mode when use with OpenVPN. When to use TAP and When to use TUN ? What types of traffic will pass with both mode ?
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1answer
49 views

PPTP and Split Routing

If I uncheck the "use default gateway on remote network" to be able to browse local shares and the internet at the same time, does that void encryption?
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1answer
2k views

What methods are there of protecting a VPS from DDOS attacks? [duplicate]

I was just wondering what would be the best way to stop a VPS from being attacked, bandwidth would be a problem in this case so methods that reduce the amount of incoming attacks and stop sending ...
4
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1answer
5k views

TLS v1.0 best cipher for OpenVPN setup

I'm trying to setup OpenVPN with as much security as I can. I'm in the process of selecting a cipher for OpenVPN. Which is the safest one, tls-cipher DHE-RSA-AES256-SHA or tls-cipher AES256-SHA? I've ...
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2answers
63 views

Secure the Datacenter, untrust the LAN?

In a scenario where you have a Wireless network provisioned as untrusted behind a firewall, using VPNs to reach the trusted Datacenter. Does anyone have an reason why this should/not be expanded to ...
4
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2answers
309 views

Does the password you use to sign into a VPN determine the strength?

I subscribed to a VPN service and need to change the password. Does the password I use to log in determine the strength? For example should it be 64 characters long or can it be 10? I'm thinking of ...
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0answers
51 views

What's The Easiest Way To Maintain Remote Users Access to a Webapp

Here is a real world case: A chain of high schools (several hundreds) has many websites (~ 3x number of Schools) that are content driven by users (the students). Every school maintains about 2-4 ...
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1answer
315 views

Setting up a ram based VPN

Are there any ram based VPN solutions that have options to keep no logs? I've been looking to set up a portable linux distro, probably Debian, that I'd run from CD without any form of persistence. It ...
2
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3answers
867 views

Filtering In Iran

Since many of you already know the Iranian government aggressively uses internet censorship to block sites such as facebook, flicker, bbc, etc. The Iranian people use various methods to bypass ...
2
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2answers
147 views

How to create an anti-flood mechanism without leaving VPN's out?

I'm trying to protect my applications from some bots that are either malfunctioning or trying to take my sites down (lots of requests from the same IPs in the logs). Every time someone requests an ...
4
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2answers
2k views

How does VPN encryption work?

I've been searching and searching, but I can't seem to find a good-enough technical explanation. From what I've gathered, there are two "things" able to secure VPNs: 1) Pre-Shared Key: This handles ...
6
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2answers
4k views

How effective is the iOS “Send All Traffic to VPN” setting at deterring Wifi-based attacks?

iOS version 5 and newer has a setting for VPNs to "Send All Traffic" over that VPN. I think that sending all data to a trusted VPN target would ensure privacy of all communication sent over that WiFi ...
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2answers
363 views

How to uniquely identify / tag client devices to whitelist VPN access?

I'm just wondering if there is any way to uniquely identify or tag client devices like laptops and towers in order to whitelist them for vpn access. (Note: This is a thought-experiment at the moment, ...
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1answer
5k views

Is it safe to use VPNbook or similar sites? [duplicate]

Sometimes I need to use Internet from cybercafes or restaurants. I'm concerned about the security when accessing critical sites such as my bank, Paypal or just my Facebook. Besides the typical ...
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2answers
1k views

Protecting yourself against DNS spoofing?

Are there any things which the user can do, on their own machine, to protect against DNS spoofing? I was just thinking when I was at the airport last and I wanted to check my email I used a hotspot ...
1
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0answers
73 views

How did these websites see through the VPN tunnel? [duplicate]

I'm using privateineternetaccess to VPN my internet connection. Recently I've noticed some web sites appear to know my real location and IP address. The most alarming incident I've seem to have been ...
1
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5answers
421 views

Manual DNS change

If I manually change my DNS setting in the router or in Windows settings from the provider's one to, say, 8.8.4.4 by Google - will it mean that my ISP has no idea which sites I am going to? Maybe it ...
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1answer
10k views

Is it safe to use TunnelBear VPN [closed]

Tunnelbear is a VPN with an easy interface to choose your country IP - https://www.tunnelbear.com/ On installation it installs a network service. When the app is turned off would it be able to ...
5
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1answer
1k views

Is EAP-MSCHAP v2 secure?

I am in a process of enforcing more strict VPN access policy after learning about the attack on PPTP with MSCHAP v2. Basically this I will be disabling the traditional PPP authentication methods and ...
6
votes
2answers
576 views

Should you use VPN if the website uses HTTPS?

If I visit the website which uses https, is there a point using an VPN? In places like coffee shop where internet is not secure. Because I think https already encrypts data?
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1answer
74 views

firewall settings for VPN

In my firewall settings there are options for "Allow VPN connections via PPTP" and "Allow VPN connections via L2tp-IPsec". All of my internet traffic goes through a VPN. Should I have these settings ...
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2answers
788 views

VPN and Firefox proxy

What happens if I use VPN and then configure my firefox browser to use SOCKS proxy? Am I then behind both or just proxy?
0
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1answer
176 views

Does the VPN provider will have access to my content? [duplicate]

I am planning to buy a VPN service just to circumvent the filtering applied by the government. However as I am planning to use OpenVPN on my dd-wrt router, all of my data will pass through this ...
0
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2answers
207 views

A thought experiment about obfuscating the location of a smartphone when it is in use, is it possible? [closed]

I was thinking about how smartphones are very difficult to use in a way that does not transmit your location, with all the networks it has to connect to (and let's say a 'burner phone' is too ...