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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Can a system administrator see if someone is using a VPN?

A friend of mine wants to use a VPN on his school's Wi-Fi becuase they've blocked many applications such as Skype, etc. My question is, if he uses a VPN (with iOS 7) will the system administrators be ...
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1answer
83 views

Is running a TOR node from device in home network secure?

I want to run a TOR node using a small ARM device mini server. I already have a good firewall set but feel a bit uncomfortable when giving away my IP address to the open web by opening a port. If I ...
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465 views

VPN over HTTPs for a web service only

I have a web service (PHP & MySQL on Ubuntu 12.04) running in a corporate intranet. I have also connected it to internet through a firewall letting incoming connections on HTTPs only (port 443). ...
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1answer
478 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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1answer
883 views

OpenVPN through company proxy and surfing history

Been trying to find an answer to no avail. Probably I just don't understand the terminology... So if anyone may shed some light in plain English, that would be awesome. I connect to a paid VPN ...
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1answer
803 views

Can I used Google Authenticator with Radius and VMwareview

We're looking to add 2 factor and one of the options is google authenticator and I was wondering if we can attach that to a radius server attached to our VM infrastructure for remote access. All ...
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1answer
52 views

VPN disconnection and snooping

When you use VPN, what happens if the VPN server goes offline? Would Windows silently revert to using your LAN connection, without notifying you? This would be an OK behavior if you use VPN to access ...
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1answer
110 views

Practical way to communicate a pre-shared key?

Company A needs to set up an IPsec VPN with company B, where each side will configure its own devices. Is there a recommended practical and quick way to communicate a pre-shared key from A to B? I ...
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1answer
209 views

Secure connection between two clients inside a wifi without internet connection

I'm currently trying to understand secure connections inside a WiFi network without an Internet connection. I would like to use some sort of SSL tunneling inside a WiFi network between two clients. ...
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2answers
319 views

VPN Client - Addtional Security Layer or a Useless Feature

I have a corporate web portal which is used for staff collaboration including a web-based mail interface connected to MySQL Database, corporate calendar, file storage, customer contacts data with ...
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2answers
272 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
648 views

What is the difference between an HTTPS traffic setup with Stunnel and a SSL-VPN

We have a scenario where we cannot connect to our stunnel server running on port 443 on our network, which only allows access to Internet via a proxy server. On the contrary, when we tried a SSL VPN ...
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1answer
494 views

What's most standard way to secure internet connections and protect privacy?

It's common knowledge that Wi-Fi, or other Internet connections, should be encrypted via a VPN to be secure, and to hide our real IP address from intermediary network observers. However, one can't ...
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3answers
785 views

Sniffing on VPN configuration

Our company wants to implement a service based on sniffing for security purposes, since we manage important information this requirement is imperative. The situation is as follows. Everyone in the ...
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1answer
105 views

Can wifi network administrators see through proxy servers?

I've looked at a lot of VPNs, and "what's my ip address" sites confirm that outsiders can't tell where I really am when I'm using them, but I haven't been able to get my own WiFi yet, so I don't know ...
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1answer
144 views

How to post comments on websites without being traced back

Just trying to get some general sense about the security on internet now-a-days. There are so many websites I go and comment on different things. If some comments are political and they don't like, I ...
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2answers
324 views

VPN tunnel inside other VPN tunnel

This question is kind of asked already but it was asked with different context: VPN tunnel in VPN tunnel Connect through two VPN clients ...
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2answers
154 views

Repercussions of hacked router?

I am staying in Thailand right now on a "long holiday" to do some work on my laptop. A few weeks I noticed that at the condo where I am staying, sometimes I am redirected to ad sites. I researched it ...
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1answer
154 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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189 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 ...
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1answer
6k 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
4k 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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1answer
274 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 ...
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5answers
374 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
546 views

Can p2p use be traced by targeting a known individual rather than an offending IP Address?

My understanding of most filesharing lawsuits initiated by copyright holders is as follows: The monitoring agency will connect to a torrent swarm and collect the ip addresses of people downloading ...
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1answer
134 views

Is there a router that acts as a VPN to get into the network but also sends traffic out through a VPN?

I have several servers that I want to lock down so they're only assessable from inside the network so I need a router that allows me to VPN in. On top of that I want certain ports(22,8022) from my ...
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1answer
2k views

Is there a difference between a VTI and a regular VPN tunneling process?

Is there a difference between a VTI (Virtual Tunnel Interface) and a regular VPN tunneling process? Or have I got the whole concept wrong?
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356 views

What security protocols provide point-to-point confidentiality?

Am I right in thinking that VPN doesn't protect until you're out onto the external network (assuming you're connecting from within an internal network)? Or does VPN provide confidentiality from the ...
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51 views

making online transactions over proxy

So I went over quite a lot of topics here and on the internet.. but I still can't seem to completely understand this issue. How secure really are services like proxies, VPN or VPS? VPN is promoted ...
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56 views

Configure icefloor to prevent leaks when VPN connected

I am trying to configure icefloor firewall on OS X 10.9 so as to make sure all traffic will go through VPN. I recently notified that even with "Route all traffic through vpn" option in tunnelblick ...
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1answer
59 views

Securing a VPS network with a VPN and a DMZ

I've got several VPS boxes (Digital Ocean boxes w/Ubuntu) that I would like to lock down from the outside world. I want to have several private boxes (web servers, db servers, puppet/master boxes ...
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1answer
329 views

Squid proxy and VPN software

I have some questions about squid proxies, in my office , IT guys set a squid proxy server to block certain web sites for users. and some users only can access one website that related to our work. ...
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1answer
593 views

Which is more secure - a VPN, a proxy-server, Tor, etc.? And why so, exactly? [closed]

I want to know how to ensure the most complete anonymity when browsing the internet and connecting to remote servers: I want to be as anonymous and secret as possible. I don't know exactly how VPNs ...
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137 views

Does using NAT-T for L2TP / IPsec VPN pose a realistic security risk?

I'm working on upgrading an old Windows RAS server that hosts PPTP VPN. I want to move to a L2TP/IPsec VPN. Due to the firewall appliance we use, the VPN server has to be behind a NAT. This means ...
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331 views

How to securely delete an OpenVPN connection profile

I store my OpenVPN profile (keys) in an encrypted drive but I run OpenVPN inside an OS that is not encrypted. When I finish my OpenVPN session and disconnect, the connection profiles are still there ...
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1answer
425 views

What does a Remote Desktop Connection risk for both computers?

I recently had a malware issue called "mysearchdial" that installed itself into my home computer's browser because someone didn't pay attention to what they were installing. I RDP'd into my work ...
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98 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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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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63 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 ...
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228 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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1k views

Best practices for operating a Bitcoin-Qt client regarding netwok privacy?

As privacy is part of security, I know there is a Bitcoin SE here but they couldn't answer my question so I hope it's appropriate to ask it here. I don't ask about how to secure my wallet on my ...
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1answer
350 views

How am I able to use Input Director when one machine is VPN'd into work?

So - I don't actually have a problem, but I'm really curious, because apparently VPN's don't work the way I thought they did. It was my impression that when I VPN into my office, my computer is ...
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2answers
360 views

How do I ensure that a VPS host will keep my information private?

Basically, I want to use OpenVPN on a VPS to browse confidentially. However, I don't know much about VPS hosters and to me, it seems to be a hard choice because there are so many. However, I think ...
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127 views

understanding the point of VPNs

I can't really understand the concept of VPNs, since we already have various secure transmission protocols. Isn't the point of VPNs that people using its 'channels' can send encrypted data to each ...
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4answers
8k 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 ...
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3answers
5k 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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1answer
2k views

Is OpenVPN secure in this way?

I'm familiar with OpenVPN because my home router has a builtin OpenVPN server. I would like to use OpenVPN all the time, but how do I deal with situations where I don't own the routers? ex.: in a ...
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4answers
249 views

Anonymity through Tor over VPN [closed]

I want to do some research on network anonymity. Assume that I am careful enough not to disclose any personal information while connected to an anonymous network. If I run a system that uses TOR ...
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2answers
107 views

I'm wondering how I hide my identity online well

what are the different ways to become anonymous. Is quicksilver a good email for that? What are the different options? I know about proxies, Tor, and VPNs. Should I do all three? I like computers but ...
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775 views

Are VPNs/proxies legal? [closed]

Are VPNs/proxies (and VPN/proxy software such as Tunnelblick and Hola) legal in the U.S., assuming that you are doing legitimate activities on the Internet (i.e. nothing illegal)?