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network firewall for linux

tilak d kumar
Greenhorn

Joined: May 10, 2008
Posts: 5
hello guys. im tilak from mangalore(india). im a final year engineering student and SCJP 1.4.
i recently finished developing a network firewall for redhat linux v9 in core java.
it uses the iptables tool.
it was a great experience.
i just wanted to thank all you members here. i had always come here to this forum when i had doubts about anything. thank you all..


A little more than useless...
Pat Farrell
Rancher

Joined: Aug 11, 2007
Posts: 4637
    
    5

Thats cool that you could make one. Have you tested it? if so, how did you test it?
tilak d kumar
Greenhorn

Joined: May 10, 2008
Posts: 5
yes Sir... i have tested it... i did the testing at college..
we got a LAN in our computer laboratory..
i simulated the internet on one side of the firewall and a LAN on the other side...
and everything just worked
when everything worked it was a moment of glory for me. it was the culmination of all the sleepless nights i have had.. it was a great day...
im just too happy about the project...
tilak d kumar
Greenhorn

Joined: May 10, 2008
Posts: 5
hey guys.. can i share this with anybody. im ready to give this to anybody who is interested...
tilak d kumar
Greenhorn

Joined: May 10, 2008
Posts: 5
i have a doubt. can anyone please answer.. is it legal for me to share the source code of my own project with anyone else here. i hope it isn't against any rules of this forum...
Pat Farrell
Rancher

Joined: Aug 11, 2007
Posts: 4637
    
    5

Am I correct to assume this is really a front end, perhaps GUI, to generate the iptable rules?

Those rules are nearly opague, so a tool is a great thing.
I've used 'shorewall' and 'guarddog' with success in the past

Originally posted by tilak d kumar:
i have a doubt. can anyone please answer.. is it legal for me to share the source code of my own project with anyone else here. i hope it isn't against any rules of this forum...


In general, folks post code all the time. I'm not a sherrif, so I can't answer officially.

Most folks put some sort of license terms at the top of the code, in a comment, saying "this code is public domain" or "this is released with Apache license" etc.

if its big, you probably want to host it somewhere else, and just post a link.
tilak d kumar
Greenhorn

Joined: May 10, 2008
Posts: 5
thanks for the reply Pat.
it is a GUI for the user but i would rather say that there is a lot of back-end logic involved
it is a jar file and has around 6,000 lines of code..
it isnt very big in size...
[ May 11, 2008: Message edited by: tilak d kumar ]
Nicholas Jordan
Ranch Hand

Joined: Sep 17, 2006
Posts: 1282
tilak, I just pm'd you. If it is small and you wrote it yourself - just put it up. If there are any issues we have plenty of very smart and well informed moderators for edge conditions.



{ message edit: 6000 lines is probably too much for posting. It will be the logic that we are interested in. How big is the logic? }
[ May 11, 2008: Message edited by: Nicholas Jordan ]

"The differential equations that describe dynamic interactions of power generators are similar to that of the gravitational interplay among celestial bodies, which is chaotic in nature."
 
It is sorta covered in the JavaRanch Style Guide.
 
subject: network firewall for linux
 
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