Let's suppose i work in a small office and i can't use my workstation to navigate in Facebook because the external firewall forbids it. But i still can use a VPN to bypass the firewall.

I read that that it's possible to integrate VPN with the firewall, in this case could the security administrator set the external firewall in a way that it blocks access to Facebook even if i'm using a VPN ?

  • Depending on the Firewall the admin can block VPNs in general – camp0 Nov 28 '19 at 16:32
  • What's the purpose of integrating a Firewall with VPN ? – AleQuercia Nov 28 '19 at 16:51

Your question seems to be conflating two different ways that VPN's are used:

1) Corporate VPN's are often used by companies to enable their employees to work remotely. When an employee is working remotely, he/she can connect to the company's network through a VPN. Then, it's as if the user is on the 'trusted' side of the firewall, and it's as if they are on the company's network. They can access other resources (e.g. network file servers, etc.) on the network. Also, any outside connections will appear to be coming from the network's public IP address. This is normally what people mean when they refer to a VPN integrated with a firewall.

2) VPN services allow users to route their network connection through the VPN service's network. User's typically use a VPN service to make their internet connection appear to be originating from an IP other than their own, for privacy reasons. Or, users can use a VPN service to 'bypass' blocks on outgoing connections from the network that they are on to certain services (like Facebook). The connection to the VPN is typically encrypted, so anyone/anything monitoring your traffic on your local network will have no way of knowing that sites you are accessing through the VPN.

So in your case, if you were on your company's network, and you wanted to access Facebook, you could try connecting to a VPN provider, and you may succeed in getting around your company's block on Facebook this way. This is basically (2), above. However, this is not the same way of using a VPN as described in (1) above, which is the case where a VPN is integrated with a firewall, typically used for allowing remote access to the network.

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When you connect to a VPN, administrator don't know where you navigate, but he know you'r using a VPN. So he can block the access to your VPN (or any VPN if he want). There is other solution: proxy (but if VPN are blacklisted, chance are they are not available too)

But there is a small trick to bypass this:

Use Google translate

It seems odd but it work! Google translate can be used as a proxy. And 99% chance are they won't blacklist it.

  1. set the source to a random language you don't use (pick chinese for example) and the destination to your language (let's say english)
  2. copy past the website you want (facebook here) and click on the link in destination.

CAUTION: It doesn't mean that administrator can't see where you go: facebook will appear in clear text in the request. But chance are he won't blacklist it (he could blacklist google translate but probably many co-worker will complain if he decide to do so). And most of the time he is not 24/7 looking what you'r doing.

The best advice I can give is: Use this kind of trick (VPN, proxy) wisely: If you need to send an important msg via facebook once a month, go for it! If you go everyday, even on a VPN, on unauthorized website, blocked website won't be your main problem

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  • 1
    Can you log in to Facebook or other sites using this method? – multithr3at3d Nov 29 '19 at 20:51

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