Track kids browsing history even when they know how to clear it manually

Solution 1:

Easiest solution would be to open an account on OpenDNS and log the history through that. They won't be able to delete it.

If he finds it is a big problem, sites can also be blocked on OpenDNS.

Solution 2:

This sounds like a good suggestion to prevent bypassing DNS:

Here's the setting of my router:

• IP: 192.168.2.254
• DNS: 208.67.222.222 208.67.220.220
• IP Filter: Blocks port 53 UDP
• A very strong password for its admin page

Here's what nslookup is like. First I try use the router's IP as the DNS:

 > server 192.168.2.254
Default server: 192.168.2.254 Address:
192.168.2.254#53 > google.com. Server: 192.168.2.254 Address:
192.168.2.254#53

Non-authoritative answer: Name:
google.com Address: 64.233.187.99
Name: google.com Address:
64.233.167.99 Name: google.com Address: 72.14.207.99 

Now I try use something other than my router's IP... like OpenDNS's IP!

 > server 208.67.222.222
Default server: 208.67.222.222
Address: 208.67.222.222#53 >
google.com. ;; connection timed out;
no servers could be reached 

So now I can't use anything else but the router's IP as my DNS server... and the router has been locked to only use OpenDNS.

He's making his router the only device permitted to make DNS requests. All other network devices must use the router's DNS settings. The theory sounds good; I'll have to test it myself. Remaining workarounds:

1. disconnect router and use internet directly from Cable/DSL modem
2. accessing websites via IP address

You can address #1 by placing the DSL modem in a closet and locking it. This may require some rewiring and attic work. You can address #2 with a full content filtering router/proxy solution, which could be pricey or complex to set up.

And finally, these are only deterrents. If they can find a hotspot or a friends house then this is moot. The root of the problem - carnality, I suppose - will need to be addressed.

Solution 3:

if you go with dns solution have a look at ScrubIT (http://www.scrubit.com/), it's a free dns service which mantains a blacklist of websites which are not safe for family browsing.