Need category based web filtering solution

I need category based web filtering.
Which box or solution I must use.

This way I am managing currently:
I have a CISCO RVS4000 router with a static IP & Small Business server 2011.
I configured my DNS to forward all the request to opendns.com i.e 208.67.222.222
Using opendns I chose the category I wish to block.

All is going well if need to block sites uniformly.


The twist is to disable web filtering to few users.
Changing DNS to ISP DNS does not work as the desktop could not able to resolve local servers IP with ISP DNS.

What do I need to do selectively enable web filtering?

Do I need any UTM?

If yes, which is best suitable for 30 users in minimum pricing?



http://www.sonicwall.com/us/en/products/Network_Security_Content_Filtering_Categories.html
http://www.websense.com/content/support/library/web/v75/triton_web_help/new_cat_prot.aspx#596182
http://www.cisco.com/c/en/us/td/docs/security/web_security/scancenter/sc5126/CategoriesAP.pdf
http://www.fortiguard.com/static/webfiltering.html
https://www.barracuda.com/products/webfilter/features#section_6
LVL 2
Akash BansalIT ProfessionalAsked:
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Craig BeckCommented:
You could use separate internal DNS servers for your clients.  One would forward to OpenDNS, the other to your ISP.  Choose which users use each DNS server by setting manually on each PC, or via login script.
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Akash BansalIT ProfessionalAuthor Commented:
Nice idea
There is only one physical server; can i install dns in the same server.  Can i install wins?
How to auto sync two dns servers?

Any utility which can be installed in the same sbs box and can sync with existing dns server and act as dns server?
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Craig BeckCommented:
WINS is no good for internet queries.

You 'could' install a 3rd-party DNS server and bind it to a second IP on the SBS but unless you're 100% sure your setup is perfect I'd not recommend it as you'd need to configure conditional forwarding, etc.
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Managing Security Policy in a Changing Environment

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Akash BansalIT ProfessionalAuthor Commented:
Thanks šŸ˜Š
Cld u recommend any gud thirdparty dns
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Craig BeckCommented:
PowerDNS may do what you need...

https://www.powerdns.com/index.html
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Akash BansalIT ProfessionalAuthor Commented:
Managed to setup additional DNS server on the second IP address using
http://dhcp-dns-server.sourceforge.net/

The client computer is getting correct IP of all the hosts .


Except:

_kerberos._tcp.Default-First-Site-Name._sites.dc._msdcs.myname.local
_ldap._tcp.myname.local
_ldap._tcp.Default-First-Site-Name._sites.myname.local

 is not found, thats why having issue while connecting the AD & Exchange.

getting error in DNS log files that this does not found in forwarding server.



I guess this must not be forwarded to the forwarding server but must resolved locally.

Please guide.
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Craig BeckCommented:
If you conditionally forward requests for myname.local they should be forwarded to the other IP on the SBS box.
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Akash BansalIT ProfessionalAuthor Commented:
Great!
Its done n over.

Thanks Craigbeck! :)

You did a great help to me.
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Akash BansalIT ProfessionalAuthor Commented:
Great approach.
you thinks out of the box.
Really a Guru.
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Craig BeckCommented:
My pleasure - glad to help :-)
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