Block port 53 on Bell Home Hub 1000
I called Bell and asked if port 53 can be blocked to all servers except Open DNS. They said yes it was possible, but they were not going to tell me. "You might hurt your modem" is essentially what they said.
Can someone help? I have teens using the google DNS on local machines to end-around the OpenDns system.
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You'll need to hunt down a support forum for that router model, or perhaps a manual for it. It's either that or open up the configuration interface and look through all of the options till you find it.
In the meantime remove administrator access to their computers from your kids. Otherwise it won't matter what you do with the router since they'll be able to change anything they want and use some other way to get around OpenDNS.
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From what I have seen on the Bell support site, this device does not allow to block ports beside 80 and 443 (via "access control").
If your teens use Windows computers, you can introduce IP address, port and protocol restrictions with the group policy editor (gpedit.msc). This is also possible on Linux and Mac OSX with their specific settings programs. Else, and if you want to have this restriction centralized, you might need another or an additional router, or you must run a form of gateway like an own proxy server or firewall server.
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