p2p, anonymity and security

Greg Rundlett greg at freephile.com
Fri Mar 12 11:54:00 EST 2004



Bill Mullen wrote:

>I have no experience with other P2P apps than BitTorrent (and no interest 
>in them, really), but I can tell you that to get the most out of BT, you 
>need to tell your router to forward ports 6881 through 6889 inclusive to 
>the internal machine running BT. You also need to limit the upload rate to 
>no more than about 60-70% of your upstream bandwidth, or the inability to 
>send packets in a timely fashion will choke your download speeds - and not 
>just the BT d/l speed, but everything else on the box (browsing, etc.).
>
>How the upload rate is limited will vary from client to client; with the 
>ncurses client, it's a command-line option (--max_upload_rate). I have no 
>idea how this is done with MLdonkey, nor do I know if it can support the 
>range of open ports that BT requires for proper (IOW, fast) operation. 
>
Thanks

>You 
>may have better luck with another client for the BitTorrent stuff - one 
>that is more specifically tailored to BT, and not one that "tacks it on".
>  
>
Actually, MLDonkey 'speaks' BitTorrent, so it handles it well, I just 
haven't read through all that I need to yet.

>  
>
>>So, my first question...Is a Linksys Router doing 'firewall' duty and 
>>NAT easy to get past?  If the answer is yes, then what should I do?  Use 
>>a firewall-specific distro to convert my old P133MHz box into a Linux 
>>firewall?  Maybe someone wants $100 to come over and show me how it's 
>>done? (location Newburyport, MA or E. Kingston, NH)
>>    
>>
>
>It should be acting as a reasonably effective firewall, and should only be 
>permeable on those specific ports you have left open /and/ forwarded to an 
>internal system. Should you opt to replace it with Linux, I've had great 
>results with SmoothWall (http://www.smoothwall.org), which is very easy to 
>install, works on low-spec systems, and has a browser-based interface. It 
>also includes the Squid proxy, and Snort for intrusion detection/logging.
>  
>
[snip]

>HTH!
>
>  
>
Yes, thanks again.

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