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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How to design a right VPN connection for an organisation (Interconnected MPLS link or Individual FW)

Thanks in advance for your advice We have to implement VPN connection for nearly 7 countries Option 1 : As we have private MPLS link to all 7 countries. It is been outsourced Third party. They ...
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4answers
187 views

Help understanding VPN

I've been reading about VPNs lately, and I'm struggling to understand what they do and how they're essential components to upholding anonymity online. The basic idea I have is that a VPN allows two ...
15
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4answers
5k views

Differences between using Tor browser and VPN

I can't quite figure out the differences between using the Tor browser and using a VPN (like concretely proXPN). From what I understand the idea is the same, that they both hide the IP address. The ...
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2answers
112 views

What are the risks in using a VPN tunnel

I live in a small town and I know my ISP in person. I don't like the idea he can read all my unsecured communication (if he wanted to do so). I know I can use a VPN tunnel such as SecurityKISS.com to ...
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2answers
167 views

Finding the IP address origin of malware attacker behind VPN and proxies

I have a client that wants me to begin doing research on finding the origin of a persistent attacker to their network and employees. I haven't gotten the specifics yet, but I'm trying to think of ways ...
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3answers
574 views

Can a VPN connection established by running a VPN client from an arbitrary location increase 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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8answers
2k views

How do I pick a VPN provider?

There's a lot of VPN providers out there. Some are free, some are for a fee, some report to the government, some inject ads int your HTTP, some are in other countries, you might not have any real ...
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1answer
66 views

IPsec: Is AH in tunnel mode secure?

I have a site-to-site IPsec VPN which was performing poorly (10 -20% upload/download speeds as a percentage of available WAN circuit bandwidth) when using ESP in tunnel mode with DES encryption and ...
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1answer
102 views

Is a self-signed SHA-1 certificate sufficient security for a company transmitting sensitive data?

We recently decided to pay an ISP (a substantial sum, mind) for a managed internet service up to and including the router in our head office. Part of the initial discussions made it clear that ...
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7answers
2k views

Alternative to VPN

We have a network that is completely closed to the outside world. It needs to be. Problem is we need to remote into a server on this network once in a blue moon for diagnostics. We've discussed ways ...
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0answers
47 views

How secure is L2TP+IPSEC?

I understand PPTP is widely used still, but insecure. A convenient alternative is: L2TP+IPSEC. How secure is it? What steps in the server setup can I take to maintain a high degree of compatibility ...
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99 views

VPN Server + Anonymity + Adblock for mobile Devices

In order to improve private security and anonymity while browsing the web on my mobile devices I wanted to tunnel all traffic to my own server via VPN and use a proxy software to filter unwanted ...
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1answer
173 views

How to properly test that an OpenVPN connection is secured?

I have a router (ASUS RT-AC66U) with an embedded OpenVPN server. I'm able to successfully connect to the OpenVPN on the router, as well as, access internal services in my home network; However, ...
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2answers
117 views

Is using an free and anonymous VPN service safe? [closed]

There are VPN services that are totally free and high speed vpn which makes me think, how can they offer such a service for free without ads nor donations? Is using this VPN safe? Regarding my ...
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1answer
102 views

How can I protect myself against DNS leaks?

As discussed here, a DNS leak is where DNS lookups ignore your current routing (in the example of a VPN connection) and still end up going out over your normal internet connection. This can ...
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1answer
1k views

How can I find my home network's vulnerabilities when opening it for VPN connections

I want to open my home network so I can connect to it via VPN to do things™ while not at home. This concerns me because I am potentially opening doors that I don't know about. What tools can I use ...
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2answers
69 views

Expose the source code repository externally or allow VPN access?

To allow third party consultants, offshore developers and contractors working on the code, we can expose our Git repository externally. Or we can grant VPN access to the external parties and limit ...
3
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2answers
148 views

Can First Hop Man in the Middle be Defeated with TOR or VPN?

I was reading this article about a certain in flight WiFi provider issuing fake SSL certificates for Google. This doesn't really surprise me all that much since I'm well aware of the concept of ...
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4answers
157 views

Is password + second factor more secure than public key auth now? (SSH)

I ask this question because, I think, we now can reasonably assume the following: NSA can break VPN and SSH: This is stated many times in the unclassified slides. Also, GCHQ has demonstrated (and ...
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1answer
138 views

Can IPs be trusted inside a VPN?

Question I have several linux clients connected to an OpenVPN server. Each client is given a persistent IP based on their X509 Common Name. Can I trust these IPs ? Context I have Client1 and ...
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0answers
110 views

Is a VPN enough to hide my trafic from my schools IT department? [duplicate]

At my school we log on WiFi with a personal login. If I wanted to hide the traffic from my computer from the network administrators would it be enough for me to use a VPN service like for example ...
2
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3answers
130 views

How do people know that IP adress belongs to VPN?

It seems that many servers know that I use VPN. They either block me completely or make me answer CAPTCHA etc. I want to use VPN but seems that many hosts don't want their customers to use VPN. How ...
3
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1answer
77 views

iOS VPN profiles - are the signing certificates global? Can this be a MITM exploit?

I have installed an app on iOS to connect to a well-known VPN service. The app requests installation of a profile onto iOS, which as far as I can see are a collection of 7 certificates - 5 of which ...
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0answers
20 views

Is it possible to combine VPN and TOR on the same connection? [duplicate]

I'm looking into using a Raspberry Pi 2 between my Router and my Modem acting as an VPN and possibly a TOR gateway (two-in-one). It should just be out-of-the-way and passively/transparently route all ...
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1answer
285 views

Uploading file with VPN…can they see my real ip?

If I'm connected to a VPN, and I upload a file to a website from my computer via a system similar to this Can they tell that I have uploaded it from my real IP or will they see my VPN IP? Thank you ...
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2answers
76 views

Remote administration methods

There is a requirement for users to remotely access one of my corporate servers from internet. Policy wise, i would want them to at least use 2FA for communication,eg VPN Tokens, password+SMS etc. ...
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2answers
392 views

Would our company system be more secure using a VPN?

I'm currently building a back-office system for our company [for internal use] that will manage our customers, accounts etc (not interested in don't reinvent the wheel comments today, thank you!). I'm ...
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1answer
199 views

Why should I use easy-rsa when using OpenVPN?

Reading this guide on how to setup an OpenVPN server on a Raspberry Pi, I saw this line: 4) You don’t want anyone who finds your VPN server address to be able to connect. So next, we’re going to ...
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3answers
172 views

Is a VPN really secure at the VPN providers side? [closed]

Please forgive my basic ignorance regarding a VPN connection. As I understand it, a VPN connection encrypts all the data between my computer and the VPN provider. Thus preventing my ISP from seeing ...
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2answers
160 views

What can my university see by installing a CA root certificate on my computer, even when I'm using a VPN?

To use the wifi at my university, you must install a CA root certificate by them. In my case, I am using a Mac computer with a VPN installed. I'm curious, what can they see me do on my computer by ...
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1answer
63 views

OpenVPN bridging vs routing: which is more secure?

I have read about the differences between routing and bridging in OpenVPN, but I haven't found much from a security perspective. Which of the two modes is more secure?
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1answer
114 views

What does this mismatching SSL certificate hint at?

I'm currently visiting China, and I use a well known VPN service for both my laptop and my phone. Every now and then, I get certificate errors when using my phone when I'm connected to a VPN, but ...
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4answers
109 views

Is there a way to make Tor network your full VPN?

Is there a way to use Tor network as your VPN, proxy or something alike? I have been gone to their website but I've seen just browser (Tor Browser), bridge, relay and exit. Is there way to tell ...
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2answers
399 views

How safe can connecting to VPN really be?

I would like to make this story as short as possible since my question is not that long, I have worked with journalists previously in war zone where we investigated the involvement of EU IT companies ...
0
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1answer
95 views

VPN - Unique client certificates? [duplicate]

Currently installing the OpenVPN service on my Linux box and stumbled across this in a guide: All of our clients will also need certificates to be able to authenticate. These keys and ...
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4answers
2k views

Security considerations in providing VPN access to non-company issued computers

There have been a few people at my office that have requested the installation of DropBox on their computers to synchronize files so they can work on them at home. I have always been wary about cloud ...
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1answer
83 views

How are some sites able to bypass vpn? [closed]

I have seen many sites which I couldn't open even if i try to access using VPN. Eg: deezer. Any method how to access the website in such cases? Well I use free vpn mainly open vpn.
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1answer
95 views

How do shared IP addresses work and do they give privacy?

I assume "shared IP addresses" work by NAT, because obviously two devices with the same IP address need someway to distinguish them. I've seen some privacy advocates boast they have "shared IP ...
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3answers
2k 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 ...
2
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1answer
318 views

Firewall and Torrent

I use my university internet network and all incoming connection is blocked on every port.(they use netasq firewall) They have no other restrictions which stops me from using a torrent client. Using ...
3
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1answer
293 views

Is it a bad idea to use a domain name to access my VPN?

I'm using a VPN mainly as a way of limiting access to my servers as it has a static IP address. Is it bad practise to use a domain name to access my VPN? That is, is it fine to use vpn.example.com, ...
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1answer
311 views

Are VPNS vulnerable to active man in the middle attacks?

I know that with SSL/TLS, man in the middle attacks are not possible. For example if Alice and Bob are trying to communicate and Trudy is trying to perform a man in the middle attack, then when Alice ...
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2answers
57 views

Should you use a VPN while on the same network as the VPN server?

This questions is somehow connected to this other one, where I asked whether it was better to have a dedicated VPN machine or to use the built-in VPN feature of the router when connecting from an ...
2
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2answers
320 views

Is using VPN on a router more secure than using a dedicated VPN machine?

I was looking at the features of the Asus RT-N66U router and noticed the built-in VPN feature. I am currently running an OpenVPN server on an ESXi VM, but I was wondering: would using the VPN feature ...
0
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1answer
148 views

Why is browsing while logged onto a VPN from public wifi more secure than not?

I've been trying to wrap my brain around VPNs for a while now, but can't find a good source that answers the questions I have. In particular, I can't understand why browsing from a public access ...
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1answer
75 views

How can a VPN use a virtual router and not send encrypt traffic and still be safe?

Today in networking class we were talking about VPNs. The prof got on topic of virtual routers and said that a way some VPNs work is by a client would purchase the service from the ISP and the ISP ...
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1answer
229 views

What are the practical risks of using IKE Aggressive mode with a pre-shared key?

Our scanning vendor is marking us down because we are using IKEv1 in Aggressive Mode with a pre-shared key. We are using Sonicwall's Global VPN Client to connect to the VPN device in question. I ...
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1answer
1k views

SFTP or FTP through VPN?

I'm struggling to find out whether or not I should set up SFTP since I already connect to the internet using a secure VPN. Is the security using FTP through a VPN (using OpenVPN, more specifically ...
2
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1answer
93 views

Does having a VPN service mean accessing my email etc. over public free open WiFi mean I have security/privacy? [duplicate]

Is my information secure over public WiFi if I use a VPN service? i.e. protection of emails and login details.
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5answers
16k views

What are the pros and cons of a VPN for privacy

Recently I have been getting more and more interested in the security (privacy and anonymity) issues of my online life. Not that I have anything to hide, or that what I do online is so interesting to ...