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Hello my name is ***** ***** I would like to try to help. please let me know when you are ready to work on this
OK, just so I am clear on what you are trying to do:
are you asking if WHILE AWAY FROM HOME you can use your home wifi to get on the internet ?
Or are you asking if you can go across the internet and access computers and devices in your home ?
I am afraid if you are out of range of your home (usually limited to approx 50 feet) then you would not be able to, the technology would simply not be there. There ARE long range devices you might use out in your yard to extend but if actually away from your home it would not be possible, I am sorry.
OK. That would be a secure way to get TO your home computer across the internet and access the devices from anywhere you have internet access on. You would still need some sort of internet access to get TO your home computer network and devices.
A VPN (Virtual Private Network) is just a secure "tunnel" that gets you to another computer without the possibility of being spied on.
A proxy would be a an internet "hand off" device so it would look like internet traffic came THROUGH the proxy instead of your home connection and would also be able to block some websites if needed.