ciao,
generally firewalling is done in the kernel as opposed to userland
tools. i do not doubt that it is possible to build a firewall with java,
but for any practical purpose i would not recommend you go with this
language or route. for efficiency reasons, the kernel is where you want to
handle packet forwarding and blocking. there is plenty of source code
available from a variety of free operating systems that you may want to
review.
if you do decide to build your firewall in userland, you will probably
need a device driver to read packets.
cheers,
.truman.boyes.
--------------
Experience is the one thing you get, right after you need it
On Fri, 30 Mar 2001, Prep Cards wrote:
> Hi folks.
>
> I just joined this list, and that is because I have
> taken up a project in senior college to code a
> firewall under Java. The firewall will be put on my
> college LAN. It will be on a per-node basis, i.e, the
> software will be on each node instead of a proxy
> server. I need to block out sites on the criteria of
> IP, and content too. I need help really starting from
> scratch, since we havent started coding yet. What we
> have worked out so far, is that we need to capture
> data packets flowing in to the node from the main hub
> of college. Please help me out here, how do I capture
> packets using C/C++/Java? The packet analysis part
> will be considerably easier, but I need help with
> actual capture of packets.
>
> Thanks a lot,
>
> Manish.
>
> __________________________________________________
> Do You Yahoo!?
> Get email at your own domain with Yahoo! Mail.
> http://personal.mail.yahoo.com/?.refer=text
> -
> [To unsubscribe, send mail to [EMAIL PROTECTED] with
> "unsubscribe firewalls" in the body of the message.]
>
-
[To unsubscribe, send mail to [EMAIL PROTECTED] with
"unsubscribe firewalls" in the body of the message.]
