need a firewall
 

I'm looking for a firewall(preferably layer7) to block or managing torrent downloads of my company staffs.Also need to filter unwanted websites.Please give the solution,which one is best opensource firewall.

Pls give the link

Thank you

The link is http://www.google.com

First hit for "linux firewall block torrent":
http://www.lowth.com/rope/BlockingBittorrent

And Squid is widely known, and probably the 'best' Linux web proxy server. You should be able to install it from your online repos, but since you don't tell us what version/distro of Linux, or give ANY details about your environment, there's not much else we can tell you.

indeed, to filter out unwanted sites, use (as mentioned) Squid. (e.g. as transparent proxy) OR you could use Dansguardian.

need a firewall
 

My working place is large bachelor residential camp in saudi arabia.In that place no broadband cable connection available.My company provide internet service to this camp through point-point wireless (lease-line)connection from nearby city,also it is expensive.Around 1000 customer we have in this camp.Now the problem their is too much download through torrent sites,also through some proxy and vpn connection users are unlocking the blocked sites in saudi arabia(for eg: by ultra surf and hotspotshield).By this internet become too slow.
So i need one suitable linux firewall to block this torrent downloads,proxy,vpn and deny some websites also.
Please give advise to solve this problem.

Thank you

We did. Go back and re-read the posts...you were given links and solutions. Asking the same question a second time won't get you different answers.

If you're not going to read or pay attention to the advice given to you, then don't ask the question.

Sorry sir,in first reply u quotes that "but since you don't tell us what version/distro of Linux, or give ANY details about your environment, there's not much else we can tell you." that why i explain in detail how our environment and what i need.

Pls forgive me as i"m a beginner.

Thank you

And I also told you how to block bittorrent sites using iptables, and what the name of the firewall was.

The bittorrent blocking link was provided (even though it could have easily been found by you via Google), and you can still find MANY squid configuration how-to guides on Google.

You *STILL* don't say what version/distro of Linux you're using, or provide real details about your environment (one Linux server or several? How many networks? What do the clients run? How do you plan on authenticating those clients to the proxy server?) Again, you should be able to install squid via your online software repositories, and iptables should already be present on your system.

i have installed centos 5.5, squid is 2.6stable 26 and the pc has two lancards,one to our local network and other to internet.about 180 to 200 user in our local network.i want squid and iptable config file as transparent proxy server,also as accelerator and lock torrent downloads.what configuration i have to use,i am a beginner to linux

Ok, great. Again, restating the question and adding bits of information does nothing.

One more time: your questions were answered in post #2, the VERY FIRST REPLY. Blocking bittorrent is covered in the second link, since squid can't do that. Setting up squid as a transparent proxy with caching (accelerator), is VERY WIDELY documented, and by going to Google, you can find MANY example configs on how to do just that.

<sniff, sniff> this smells like a homework question to me.