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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303 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 ...
2
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2answers
172 views

Skype Audio / Video Session over VPN?

Basically I'm wondering if a Skype video session along with audio could be logged (or recorded) over a virtual private network? I know whoever hosts the VPN server can log which websites you visit (or ...
0
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1answer
158 views

Cellular Mobile Network Vulnerabilities - Is VPN the solution?

Do current mobile cellular networks like 3G offer enough security? The article from Info-Security states that 3G encryption cracked in less than two hours. Could a eavesdropper or ...
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1answer
2k 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
149 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
129 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 ...
0
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1answer
225 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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0answers
82 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 ...
0
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1answer
1k views

Is PPTP VPN ever secure? Under DD-WRT? [duplicate]

PPTP is not an open, ratified standard the way that, for example, SSL/TLS is. (see: http://en.wikipedia.org/wiki/Transport_Layer_Security#TLS_1.2 and http://datatracker.ietf.org/doc/rfc5246/ ) The ...
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1answer
163 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
122 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 ...
5
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2answers
151 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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3answers
315 views

Can a VPN connection established by running a VPN client from an arbitrary location guarantee security?

I came across this interesting device called SurfEasy Private Browser. Here's the company's webpage and here's the product page on Amazon.com. I assume it's just a USB stick with a VPN client and ...
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4answers
4k views

Open VPN has DNS leak

Since using www.dnsleaktest.com I have found that any VPN service using Open VPN will leak my DNS through the tunnel. I have tried and tested several VPN providers, even those who say that they have ...
1
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2answers
158 views

Is QuickVPN Secure

Does QuickVPN create a secure tunnel or how does it work to provide encryption and security? When I did a see my IP it was using the remote locations IP and not my office network's IP so does that ...
0
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1answer
208 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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0answers
25 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
207 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 ...
2
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1answer
146 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 ...
2
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1answer
6k 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
47 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?
0
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1answer
1k 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 ...
1
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1answer
3k 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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1answer
2k views

Are there any known vulnerabilities in PPTP VPNs when configured properly?

PPTP is the only VPN protocol supported by some devices (for example, the Asus RT-AC66U WiFi router). If PPTP is configured to only use the most secure options, does its use present any security ...
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2answers
59 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 ...
3
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1answer
1k 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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0answers
49 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
4k 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 ...
1
vote
1answer
180 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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2answers
110 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 ...
2
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2answers
475 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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4answers
5k views

Can someone tell if you are using a VPN by your IP address?

I am wondering whether a website you are accessing can tell if you are using a VPN or not based on your IP address? I have done some Google research and it appears, that this is the case. However, I ...
1
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1answer
3k 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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0answers
59 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 ...
3
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3answers
1k views

SSL VPN Detection and possible to block

Is it possible to determine the difference between a VPN on port 443 compared to standard SSL traffic? In order to access SSL websites you need port 443 open but if you setup a VPN Service on port ...
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2answers
191 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, ...
5
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2answers
2k 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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1answer
5k 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 ...
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1answer
197 views

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 ...
5
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1answer
439 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
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2answers
425 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?
-1
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1answer
65 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 ...
0
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2answers
674 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
133 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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3answers
4k views

How to sniff traffic on my wireless network?

For educational purposes, I want to see what packages are sent over my home wifi with VPN on and off. What program should I use for this?
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5answers
306 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 ...
0
votes
2answers
177 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 ...
1
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1answer
416 views

Openvpn in front of proxy? [closed]

I have been reading books on OpenVPN, and there is one thing I don't understand yet. What happens when a person connects to OpenVPN, and their web browser is set to a Socks5 or HTTP/HTTPS proxy and ...
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2answers
177 views

OpenSSL, x509: what is the correct way to picture signing authorities?

For the purposes of creating a VPN, I can't find a logical explanation of OpenSSL's/x509 scheme. I'm royally confused about these three terms, Certificate Authorities Gateway certificates End-point ...
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2answers
3k views

OpenSSL, x509: what's the significance of CN (Common Name)?

With regard to these three items Certificate Authorities (CA) Gateway certificates End-point Certificates (client-cert) What is the significance of the Common Name CN with regard to the a VPN? ...