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 using an free and anonymous VPN service safe? [on hold]

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 ...
5
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1answer
99 views

Prevent location being exposed through VPN

I use the Astrill VPN service to access websites that my country has blocked. There is nothing sinister going on here. Sites like google and youtube have all been blocked. This VPN service offers ...
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0answers
34 views

Allow network access to employees in China? [closed]

The nonprofit I work for is sending employees to China to work. We are providing loaner machines with various third party VPN options to allow them to connect to gmail, godcs, etc. Do you think it ...
3
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0answers
9 views

No browsing issue on PPTP VPN Server on CentOS 6 64bit [migrated]

I am trying to setup a VPN server in CentOS6 64bit. I used the first 4 steps of following document to setup the server . ...
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1answer
127 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
119 views

How to protect iKvM, IPMI, KvM Interfaces from 0day and other exploits

In REF to http://threatpost.com/ipmi-protocol-bmc-vulnerabilities-expose-thousands-of-servers-to-attack and the hacks of several companies and web hosts have been hit and had their servers wiped from ...
5
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1answer
72 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 ...
8
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1answer
874 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 ...
2
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1answer
49 views

Would a VPN with changing configs do the same job as different VMs

I was reading this question. So my question: Would using a VPN and swapping out configuration files that change your IP address mask the same as using different VMs?
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2answers
46 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
131 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 ...
3
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4answers
123 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
65 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
18 views

Share Intranet through VPNs [migrated]

Site (#S1) has a internal computer quiz system of the PCs in the subnet of 192.168.8.0/24, the web server is located on 192.168.8.2. Those PCs do not connect to Internet. There is a PC (#A) joined to ...
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0answers
80 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
83 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 ...
13
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3answers
2k 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 ...
3
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1answer
60 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
17 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 ...
1
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1answer
230 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
70 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. ...
4
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2answers
380 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 ...
2
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1answer
86 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 ...
3
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3answers
137 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
110 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
40 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
89 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 ...
2
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4answers
98 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 ...
5
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2answers
379 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
47 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 ...
7
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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
71 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.
0
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1answer
45 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
1k 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
144 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 ...
2
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1answer
103 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, ...
24
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3answers
6k views

symmetric encryption session keys in SSL/TLS

This question concerns the session send and receive keys used in SSL/TLS protocol. my understanding is that this key uses symmetric encryption (DES, AES, BlowFish, etc.) I'm wondering, if ...
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1answer
84 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
43 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
140 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 ...
2
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2answers
641 views

Squid proxy and VPN software

I have some questions about squid proxies, we 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.but after install some ...
0
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1answer
109 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 ...
1
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1answer
53 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 ...
1
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1answer
63 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 ...
0
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1answer
306 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
72 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
14k 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 ...
2
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2answers
71 views

How would an attacker know the Gateway IP's of 2 VPN endpoints?

My office has two Sonicwall Routers each at a different physical location and with two different ISPs. There is an SSL-VPN tunnel between the two. Today I noticed that the same Chinese IP address ...
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3answers
257 views

How to hide my ip and browsing history from others on my network?

I need to hide my activity and IP address from those I share this network with. I'm unsure if a VPN will serve my needs, because I'm not concerned about the sites I access tracking me. I'm concerned ...
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2answers
93 views

What can IT see and log? [closed]

First of all, I'm a co-owner of my company and I am using my own computer on my company network. Occasionally I'll browse some websites throughout the day to kill some time. My business partner ...