An application in Windoze called Personal Firewall does this. IT somehow does an checksum on the .exe file and then compares, but it is a user-lev= el firewall and not kernel level. Gustav Svensson said: > Is it possible to set "outbound" rules based on what binary application > it is that wants to access the Internet? > Just like what I'm used to when I run win32. In every firewall > application there, I get a message when some program is trying to > access the internet. Then I can decide whether to procede the action, > or block it. On Linux I see nothing like this. I'm having a concern > with the RealPlayer. I would like to block it to reach any other > addresses but those to my favourite stations. > Sure, I could set up a rule for the port that RealPlayer is supposed to > use, but what guarantee do I have that it isn't capable of using some > other port, like 80 for example? Assume it does use the port 80. Then > it would be imposible to stop without a rule like mentioned here. > Because I would want Galeon to have access to any address on port 80, > so I have to leave it wide open. It would be better if I could allow > this privilege to Galeon only, not to any program that uses port 80. Is > this feasible, if so how? > > Gustav > ______________________________________________________ > H=E4r b=F6rjar internet! > Skaffa gratis e-mail och internet p=E5 Spray http://www.spray.se Regards, Cyberdude Murli The Earth
