Prabin,
1. Use openDNS parental control. Setup these IP as DNS server for your
network: 208.67.222.222 and 208.67.220.222
2. Using iptables at your gateway, filter out all the request in port 53
except the above two ips.
3. After this only the folks with IP can open up the porn sites. Watch out
for hackers within your network ;)


Alternatively you can install dansguardian as suggested by Gaurav.


On Wed, Jan 25, 2012 at 8:32 AM, Prabin jha <[email protected]> wrote:

> Can any body help me, Is there any way to block all porn sites from
> linux iptables ??
>
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