Hotspot Shield is a free openvpn software that can bypass webfilters and firewalls. In our workplace, we are preventing access to networking sites such as friendster, facebook, and etc. through a linux box running squid and iptables. However, some of our client users have manage to use hotspot shield in order access those blocked sites. any idea???
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Accepted AnswerAli RazaOfflineCheckout the blog post @
This works for following firewalls(tested):
to block Hotspot shield Just make a single rule in firewall to allow only “HTTPS”……no other rule……..that’s it..
your “HTTP” traffic is already handled by Squid with transparent mode enabled. B)