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Old 11-03-2002, 04:38 PM   #1
schatoor
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Registered: Jul 2002
Location: a tiny place caled hendrik ido ambacht in the netherlands
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firewall, howto ?


Hello there guys. I was wondering if someone could piont me to a good firewall howto. I have tried google, but although if find good howto's, the tell you how to setup a firewall for a network. I have a single computer at home. I want the firewall to run on the same system as all the other software.
Also, does any one know good firewall software. Do I need aditional software? I know nothing about firewalls. So it would be nice if someone could help me out.
One last thing, how important is a firewall actually? I have a cable internet connenection, so I have connetion most of the time when my computer is up. But it's not that some one could hack in to my network. And why would some one hack in to my personal computer?

Well, that wraps up my question,

Bey
 
Old 11-03-2002, 10:54 PM   #2
pbharris
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Location: chicago, IL
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hello,
try firestarter it walks you through everything and is fine for indivual workstations.
 
Old 11-04-2002, 02:03 AM   #3
adam_boz
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ipchains is what you want to look into if you are using a 2.4.x kernel. Here's their main site:

http://www.iptables.org/documentation/index.html

I'm trying to figure it all out my selfe at the moment, so I can't really go beyond that.

good luck

-Adam

EDIT:

I asked a question similar to yours a while ago. Maybe there'll be something usefull for you in it:

http://www.linuxquestions.org/questi...502#post160502

Last edited by adam_boz; 11-04-2002 at 02:06 AM.
 
Old 11-04-2002, 01:15 PM   #4
ddpicard
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I see your using SuSE. What version?

SuSE comes with the firewall. Just go into your control center and look around. I am at work at the moment and I can not remember the exact location in the control center.

By default the Firewall has everything open. Just follow the steps and tell it to close everything. Very simple. If you have any other questions I will check back when I get home and tell you where and how I set mine up.

I have checked the ports before and after I setup the Firewall. The ports that where just closed where blocked after setting it up.

ddpicard
 
Old 11-05-2002, 02:51 AM   #5
schatoor
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He thanks for your replie. I'm using SuSE 7.3. I know about the build-in firewall in suse. I had a look arount in yast. All that I seem to be able to do is change one variable in rc.config. The name of the variable is "REJECT_ALL_INCOMMING_MESSAGES". Are you understanding what i
'm talking about? Not what you call a real flexible configuration tool for a firewall. It says I can do thinks like "REJECT_ALL_INCOMMING_MESSAGES = eth0" which will reject all incomming messages to my ethernet card. Not somthing that I realy want.
Maby there is something wrong with my yast. You see, I'm using KDE 3 at the moment, which I compiled from source. All the yast files are still in my kde2 directory. I can run yast, but I can imagin things being broken.
Any way, I would also like to understand how this firewall thing works, and using some wizard to configure the firewall isn't the best way. Plus I think that using something like ipchains is more flexible.
Well, thanks for your reply. I hope I made sense to you.

Bey
 
Old 11-05-2002, 06:11 AM   #6
yai68
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Registered: Apr 2002
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Another good site to check out is www.shorewall.net/
 
Old 11-05-2002, 08:09 AM   #7
ddpicard
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Well, I am using 8.0. With the Firewall in 8.0 I can block all or open up services I want to.

Sorry, I have not used the your version, so I don't know if the Firewall works the same. Looks like Firestarter or Iptables maybe what your looking for.

ddpicard
 
Old 11-06-2002, 12:05 AM   #8
trickykid
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moved: more suitable in the networking forum.
 
  


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