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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What's the safest way to access my US-based bank's website from within Mexico? VPN vs SSH vs HTTPS?

I will soon be moving to Mexico and living there for an extended period. During that time I will need to occasionally access my US-based bank's website. I'll always be connecting using my own laptop, ...
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2answers
816 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 ...
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5answers
381 views

Does using ssl matter if I am connected using a VPN?

Say I have an internal server that I am using for source control. If I only access that server through a VPN connection, do I still need to have SSL setup on the source control server to ensure that ...
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2answers
183 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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1answer
2k views

Is L2TP as secure as IPSEC for VPNs?

Is it as secure to use L2TP for VPN access, rather than IPSEC? Am I introducing any risks by using L2TP?
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633 views

I'm being followed on the web. Explanations for mysterious behavior

Am I being stalked? I was recently doing some basic Python development scripting. Python has a nice feature where it can run a simple HTTP server that serves the contents of the local directory, on ...
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2answers
207 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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4answers
777 views

Are there consumer-grade VPN services that support two-factor authentication, like SecurID?

I'd like to increase my VPN security, and Google hasn't turned up anything with regard to VPN services and SecurId. Does anyone know of services like this?
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2answers
93 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 ...
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1answer
182 views

Store To Store communication through MPLS VPN

In a PCI environment with an MPLS VPN network setup should you allow store to store communication? Do you think that an MPLS network would be consider secure enough for this? why or why not?
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2answers
1k views

L2TP/IPsec shared secret: Can it be public?

My university provides a VPN service to gain access to internal services to all members. They are apparently using an L2TP/IPsec solution by Cisco. I'm able to connect just fine, but I'm a bit ...
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5answers
3k 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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332 views

Securing data transfer between public network and personal accounts

I would be traveling soon and I am looking for all kinds of ways to encrypt the data transfer (usernames, passwords, emails ...) between the new networks to which I will connect my Laptop, that is ...
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3answers
800 views

How do a VPNs route SSL traffic and do they compromise security?

If my understanding of how VPNs operate is correct, all traffic between me and the Internet at-large is routed through the VPN's servers. So an attacker would only be able to see encrypted traffic ...
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3answers
808 views

How can I make it more difficult for a user to create multiple accounts?

I would like to know the best way to increase security on a website so that the a single user can't create multiple accounts. What all of a user can be traced? I'm thinking: IP address Mac address ...
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2answers
313 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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3answers
5k views

Understanding VPNs : How VPNs can be used for anonymization?

Previously, I asked the question Why is it difficult to catch “Anonymous” or “Lulzsec” (groups)? I understood every answer except the VPN thing. Its because I never knew what VPNs were. Any how that ...
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2answers
1k views

Does Microsoft Remote Desktop require a VPN to be secured?

I am connecting from my home Windows 7 machine to a hosted server Windows Server 2008 R2. I am connecting to it using Remote Desktop on a non-default port. I am wondering if I should go to the effort ...
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1answer
756 views

OpenVPN Why CBC mode is recommended?

I just set up my installation of OpenVPN on my server. I am curious why the OpenVPN manual recommends CBC mode. I heard that CBC is predictable and not secure; is that true?
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1answer
783 views

I'm using a Cisco ASA as a VPN endpoint. Where do the VPN clients get firewalled?

(Is this too application specific? It seems like a reasonable question that would be useful to other people...) So, I've got this ASA in front of a network that I didn't set up. It's been ...
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2answers
2k views

How is a website determining my location even via VPN? [duplicate]

I'm currently in China, and accessing the Internet via a VPN in the USA. When I access Google maps or other location-based web services, they all show my location as that of the VPN server. However, ...
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3answers
1k views

Can a VPN decrypt my SSL traffic?

Are VPNs able to decrypt SSL traffic originating from my use of services such as Gmail, Dropbox and Skype, Google Talk and HTTPS-enabled websites? I'm asking because I always turn off these and other ...
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2answers
266 views

VPN Appliance Placement Options

I'm currently looking to implement a VPN solution (based on a Checkpoint Connectra) purely to provide remote access to staff (no site-to-site, or customer access), but the one design decision I can't ...
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1answer
715 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
306 views

SSL VPN placement strategies

I wanted to know the advantages and disadvantages of placing an SSL VPN with respect to CIA in different locations: with firewall within the internal network within the DMZ Any reference also ...
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3answers
302 views

Dedicated Server in Cloud Environment - SSL Remote Login vs Dedicated VPN

Thanks for taking your time to look into this question. Background I have my website hosted in a dedicated server in the cloud. The server is a Windows 2008 R2 machine. To publish I FTP files to ...
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2answers
2k views

When is it posible to sniff VPN traffic?

I have created a VPN service using Routing And Remote Services on Windows Server 2008 and I haven't configured any Server Network Policy yet. There is only one user for connecting to VPN and all of ...
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1answer
285 views

Setup of Kali Linux for reverse shell connections over the internet

I am running Kali Linux as a VM on my Windows machine which is NAT'd behind my company network, if I wish to pen test a website for a client and believe that a reverse shell is possible, what is a ...
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2answers
1k views

Can remote LogMeIn Hamachi users access our local LAN?

Unknown to me, one of the kids has installed LogMeIn Hamachi on his PC so that he can access and play on his pal's Minecraft server, and vice versa. However, my lack of fu when it comes to these ...
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4answers
14k views

If I use a VPN, who will resolve my DNS requests?

Will they be resolved by my VPN provider, or by my original ISP (if left on "automatic" settings)? Would I have to manually configure a dns server, to make sure my requests will not be resolved by my ...
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3answers
155 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 ...
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3answers
1k views

Could I delete .csr files when the key is signed by CA

I'm creating my own openvpn server. The Certificat authority is located on a separated host. There is two kind of clients: which that just send a .csr and to which i send the .crt as an answer and ...
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3answers
139 views

Does the principle of the CRIME & BEAST attack affect VPNs?

I was recently reading about the attacks on SSL/TLS that CRIME and BEAST were able to exploit by attacking the compression in the secure session. Upon reading this I remembered that OpenVPN has ...
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2answers
93 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 ...
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4answers
4k views

Can my company access my computer via the VPN?

The job I have requires that we have computers at home, a few years ago they had everyone install a VPN on our home personal computers (the company did not provide us with these computer) how safe if ...
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1answer
2k views

Risks of Microsoft Remote Desktop access behind a secure VPN

This is mostly for my own education, but a scenario has came up at work that has me skeptical. I'd like for the security experts to tell me if this policy is overbearing or not. I remote into a VPN ...
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3answers
503 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 ...
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4answers
8k views

Connect through two VPN clients

What exactly happens if I connect through two VPN clients on my laptop? For example, I connect using Cisco Any Connect, and then use another VPN client (such as HotSpot Shield or proXPN) to connect ...
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1answer
471 views

What is a DNS leak?

I'm planning on getting a VPN service (probably Privateinternetaccess) and read that it is imperative to plug DNS leaks. The only information I found on google describing what these are is here and I ...
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2answers
355 views

Test Android Secure Encrypted Traffic

For testing android traffic encryption I have configured a VPN client in my phone. What simple test I can perform in my home wifi network to verify that the traffic is really encrypted and secure?
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2answers
76 views

What can my university see if they have my MAC address?

when i first got to my university i had to provide my MAC address to get access to the internet. What i want to know is what information can they get from having my MAC address linked to my name. i ...
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2answers
91 views

How can I protect myself from the VPN operator when using a VPN to gain free access to the Internet?

I live in a country that the government blocks most ways of accessing to the uncensored Internet (like blocking VPN pptp, l2tp), Luckily there are some very fast services still available like Kerio ...
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1answer
4k 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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2answers
813 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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3answers
191 views

Are intermediate signing certs the only secure+practical way to manage OpenVPN client certs?

My organization needs to issue (and revoke) OpenVPN client certificates for people working remotely. Our system is based on a standard OpenSSL CA setup and the easy-rsa tools, and the whole directory ...
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2answers
425 views

Ordering of shared Phase 1/ISAKMP VPN policies

The various Phase 1 settings of a VPN tunnel policy are fairly well-established (encryption, hashing, DH group, lifetime), but in what order are they considered applicable to a more-secure tunnel? I ...
2
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1answer
249 views

Is OpenVPN secure if both the certificate and private key, are publicly known?

My ISP is rubbish and the state of the internet in the UK seems to be heading to 1984. I've started looking at VPNs and stumbled on IPredator as a cheapy test. It gives you the option of OpenVPN and ...
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1answer
694 views

Analyzing wireshark results (openvpn)

I signed up to Mullvad for VPN service, and manually run OpenVPN from my Linux box. I rebooted my computer and make sure not to start any OpenVPN service. Yet when I did a Wireshark analysis I am ...
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2answers
804 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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2answers
5k views

Does portforwarding present a risk to anonymity?

AirVPN by default has all ports closed but allows port-forwarding. I think this is required for P2P. Is this a threat to anonymity (e.g. would the person at the other end of the P2P transmission know ...