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 secure is VPN addons for browsers [duplicate]

I regularly uses VPN addons like browsec, Zenmate etc in my browser. These addons/Plugin boast about hiding IPs, bypass firewalls, faster and encrypted services, tracking protection etc which they ...
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1answer
206 views

PPP over SSH - is this correct?

I see a lot of talk online about whipping up a VPN connection using PPP over SSH. This term confuses me, as SSH is an app tier protocol and PPP operates on the data-link layer. So, my question is: ...
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193 views

Foolproof way to hide your IP when browsing [closed]

is there a fool proof-ish way to hide your IP from websites you visit? I heard even if you use VPN, there can be 'leaks'? And one step more secure is Anonymizer or Tor? Can they have 'leaks', too? ...
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2answers
272 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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2answers
353 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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2answers
2k 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 ...
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1answer
813 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
5k 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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723 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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3answers
552 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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3answers
119 views

What is this Polish IP doing on my internal WiFi?

Lately I've seen many strange events in the logs of my wifi router / cable modem. Many are linked to the IP address 83.0.68.240 from the ISP, Orange Polanska. Events like "DoS attack: Ping Of Death", ...
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1answer
97 views

Can in a VPN LAN-to-LAN one site be completely isolated from the other?

In a VPN LAN-to-LAN setting, is it possible to isolate one site from the other? I know that we can use a firewall but that would obligate us to manage specific rules in the firewall. I would like to ...
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2answers
144 views

Public AP: How to reduce vulnerability window between Captive Portal and starting VPN?

I always use a VPN on my Mac when I access over public APs (such as coffee shop free WiFi) How much should I worry about the window of time where I am in the captive portal (the agreement screen) and ...
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2answers
696 views

Using VPN in the UAE - safe or trackable?

I'm currently in the United Arab Emirates, and I am wondering if Etisalat or the UAE can track what I am doing if I use the ZenMate VPN addon to Chrome?
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1answer
247 views

Is it particularly unsafe to use openvpn or pptp with only username/password authentication instead of certificates?

I use a vpn server (supporting pptp and openvpn) built in to my router at home to make a secure connection back to my home network. I currently use OpenVPN with certificate authentication, but since ...
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212 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 ...
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2answers
335 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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2answers
3k views

When connecting to internet through VPN what precautions should be taken?

I've read this similar question and it has some very good information. Can a site that has personal information about you be accessed by another site to determine who you are/where you are? For ...
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3answers
584 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
1k 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 ...
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1answer
981 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
1k 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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1answer
5k 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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2answers
185 views

Meterpreter session over VPN

I have the following situation: Attacker machine connected to a router with public IP assigned from ISP, forwarding enabled. Victim machine connected to another router, (obviously) different IP ...
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1answer
73 views

Properly solving IP leaking from WebRTC and other apps with STUN when using a VPN

This is really a follow-up question from this: Stun scripts/webRTC IP leaks I'm connecting to a VPN using a virtual adapter, which has a default routing rule so all traffic goes through it. I still ...
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1answer
541 views

Hide Docker Containers Behind VPN

I want to run all services within Docker containers (including RA and site-to-site VPN) such that all containers except the VPN are not exposed on the public IP, but are reachable on the VPN IP. This ...
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1answer
6k views

Understanding OpenWRT LuCI Firewall Routing with VPN

I'm still fairly new to networking, and I'm having a little trouble grasping some concepts of the proper firewall rules I need to implement for my desired setup. I'm setting up a router with OpenWRT ...
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3answers
305 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 ...
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2answers
118 views

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

I was reading this post: Can a website still detect my real MAC address even if I use different virtual machine each time I visit the website? So my question: Would using a VPN and swapping out ...
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1answer
183 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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2answers
114 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
197 views

Is there any point to connecting to a VPN server while on the local network?

I plan on installing a VPN server on one of my computers that is running Ubuntu for purposes of connecting to my local network while I am not at home. At home I also have a desktop computer (separate ...
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1answer
507 views

PFS incentive during IKE Phase 2

I'm trying to see the actual point in implementing Perfect Forward Secrecy during Internet Key Exchange Phase 2, if it had already been used during Phase 1. Quoting the IKEv2 RFC: RFC 5596 ...
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2answers
2k 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 ...
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2answers
607 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 ...
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1answer
225 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 ...
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1answer
80 views

Remote network security option

I'm a bit confused with some different network security techniques. Say we want a secure communication with a particular mail server in a remote company network. Reading and sending mails should be ...
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1answer
91 views

VPN using SmartPhone Location

When you VPN using your smartphone as a hotspot, can the VPN tell your location like it can when you VPN over a wireless connection hotspot?
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1answer
4k views

Is it secure to install RSA SecurID Software Tokens on the same computer that will be used to access the VPN?

My office switched from using the old hardware RSA SecurID key tokens to the RSA SecurID Software Tokens and most users have them installed on the same machines they use to access the VPN. I asked ...
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2answers
947 views

Low level attacks on WLAN/LAN connection while connected to VPN

Is it really secure to connect to a (well-secured) VPN server over an unencrypted WLAN connection (or maybe a hotel Ethernet)? I know, that there have been questions like this - but I'm not asking ...
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29 views

What are the security risks of using public address schemes for the DHCP of your VPN'd Users?

At the company I work for we recently purchased a network scanning tool to help with asset inventory and overall PC network management. My supervisor, while looking at the different IP address ranges ...
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45 views

what are the advantages and disadvantages of using ipsec protocol, how vulnerable is it? [closed]

There are several ways through which the VPN can be applied, like SSL, TLS etc. But most of the VPN use IPSec. What kind vulnerabilities does ipsec possess?
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2answers
118 views

Is a vpn connection through a proxy more secure?

At the moment there are a number of online services (Hide my ass or PIA) that offer some type of security through an VPN connection. This of course can work, but the big problem (for me at least) ...
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1answer
106 views

VPN and Unencrypted Protocols

I recently started subscribing to a VPN service, and to check that all traffic is in fact encrypted I used Wireshark. According to this page, the lower, right hand side should be gibberish (from this ...
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1answer
51 views

Server side Client VPN management?

Is this possible, and how? Here's the scenario: (1) Public Web Server hosts basic content for general public. (2) Private server inside a VPN hosts special subscriber content and services. The two ...
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0answers
104 views

Ways to prevent traffic injection by ISP [closed]

I live in a big brother country (Egypt, but valid to many other countries), which apparently bought Hacking team and fin fisher software since couple of years. After reading about the very-easy ways ...
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0answers
182 views

Does enabling VPN on our router increase the risk of our network being exposed to the outside network? [closed]

We are thinking about using VPN to connect our remote office and the main office and also support developers working from home. To do this, we are planning to purchase 2 CISCO (or similar) routers to ...
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2answers
76 views

Can a website detect which method you are using to connect (LL2P, SSTP and PPTP)

When you connect to a website using a VPN with the same IP however using a different type of connection each time (LL2P, SSTP and PPTP) can the website detect the difference between these connection. ...
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1answer
119 views

Non-profit on limited budgets looking for safety with VPN/TOR etc [closed]

First off, thank you ahead of time for your patience. We are a small non-profit with a 100% volunteer staff. We deal with children and some adults that suffer from Mitochondrial disease. So, I was ...
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64 views

How do nested vpns through VM work?

Let's say I have 2 different VPN services (vpn1 and vpn2) both using OpenVPN and a Linux host running a guest VM. Now let's suppose I connect from the Linux host to vpn1. Then I connect from the ...