Yes, actually. If you think he's a danger to society, throw him in jail. Don't let him out with some kind of ridiculous restrictions on what technology he can use and where he can live.
In South Florida, where I used to live, nearly every municipality had passed ordinances restricting registered sex offenders from living within certain distances of parks, schools, daycares, etc. To the point where there was basically nowhere for these people to live. They either had to abandon their families and leave the area (For where? Many other areas have similar restrictions.) or live under a bridge.
Seriously. There's large numbers of sex offenders living under bridges in the Miami area because there's nowhere else for them to live. Their parole officers know they're there, some of them have family that brings by food and supplies, etc.
These are people that the government has deemed to dangerous to live near places children congregate, but not dangerous enough that we need to keep them in prison. So they're homeless. And from the bridge, many of them simply give up and disappear. Off the radar. Gone. Poof. Living somewhere we don't know.
It's ridiculous. Either they're a danger to society or not. Make up your mind.