block some website

Hi Expert,
How to block some websites from server
Any open source proxy server available?
Or any settings we can make in dns server (domain controller ) ?
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Ernie BeekExpertCommented:
If it's just a few websites, make them point to in DNS.
Miguel Angel Perez MuñozCommented:
Add a entry on hosts file as follows:              any IP

For example:   

This line redirects to this ip (google).
bominthuAuthor Commented:
Hi Drashiel,
u r right, can be done above, problem is there are some clients which are not joined to about for them ? But they still use server DNS. The above option applied to member of domain only.
Any suggestion for setting ? Or simple open source tool to run in server ?

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Ernie BeekExpertCommented:
You have a firewall of some sort in place?
You might be able to do some blocking from there.

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bominthuAuthor Commented:
I don't have firewall
bominthuAuthor Commented:
any free proxy server to run in server ?
Open source proxy server is squid this can do what you want
bominthuAuthor Commented:
Could you advise how to block yahoo messenger and msn messenger ?
Miguel Angel Perez MuñozCommented:
bominthu, block messenger software has no big impact, because are a lot of webpages that has web messenger. Squid or Forefront could block using categories to filter this traffic.
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