Block Zenmate

[dreamteam-1]

How should I block Zenmate? It is not blocked even when I place the check mark for "Proxy/Anonymizer".

[rotblitz]

You cannot block VPNs with a DNS service, because they use their own DNS, not the one you configured.  You can at best block the domains where the program can be downloaded from.

[dreamteam-1]

But Zenmate is the Chrome Browser extension, how can the browser extension be blocked?

[rotblitz]

I say it again: DNS services cannot block VPN programs, including VPN browser extensions, because they do not use your configured DNS.  A DNS service can block DNS lookups to domains only, but cannot block apps, browser extensions or any other objects.

You block browser extensions by disabling or uninstalling them.

[#5]

You can block any VPN with OpenDNS, you just need to know which domains they are using to connect to their services, I've blocked Zenmate using OpenDNS on my DNS and it's working flawlessly. all I've done is open DNS Query Sniffer (by Nirsoft) on a #1 PC and disabled it's firewall, configure #2 PC's Primary DNS server with the IP address of #1. When I enable Zenmate Plugin for chrome in #2 PC. the plugin started connecting to their services but because In #2 primary DNS was configure to IP Address of #1 PC, it failed to connect because #1 PC is not a DNS Server, but DNS Query Sniffer grab all the requests coming from #2 PC. and I block all the domains with OpenDNS now nobody is able to use Zenmate VPN on our network.

Note: they change their domains after sometime so you've to keep checking their domains.