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Old 12-04-2003, 10:32 AM   #1
shanenin
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Do I need a fire wall?


I just installed gentoo. I am trying to use guardog as a frontend to iptaples(worked well with slack). It is not working and is locking up my system. So as of now I have no firewall. When I run a scan with nmap, it shows all of my ports closed, even 6000. also when I go to sheilds up, it shows all ports closed, and a few stealthed. Is this pretty insecure, even though all ports are closed? should I be worried about getting this firewall up fast?

Last edited by shanenin; 12-04-2003 at 10:54 AM.
 
Old 12-04-2003, 10:42 AM   #2
superbondbond
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A firewall is generally a good idea.

A nice, simple frontend is Jay's Firewall (iptables).

http://firewall-jay.sourceforge.net/
 
Old 12-09-2003, 02:08 AM   #3
chrisfirestar
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If you have NO firewall installed then ports that are opened but have no service assigned to that port will appear "closed"... so yes this is VERY insecure.

I would suggest getting a firewall up and running asap. plently of scripts floating around to do it all... if you need help post requirements and ill give u a script to do the job
 
Old 12-09-2003, 07:58 AM   #4
fotoguy
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If you have a spare old computer lying around turn that into a firewall, there are plenty of firewall/router programs around Smoothwall, Ipcop and mandrake MNF just to name a few.
 
Old 12-09-2003, 09:54 AM   #5
shanenin
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I got my firewall working a few days ago. The reason guraddog was not working was I did not have all of the needed modules made. Thanks for your advice.
 
Old 12-09-2003, 07:02 PM   #6
YeshivisheHarry
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with a cable modem i need one right?
 
Old 12-09-2003, 11:56 PM   #7
fotoguy
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Yes, when running cable definetly run a firewall, it will save you lot trouble in the future. I had someone a couple of years ago scanning other computers from mine. Rather a shock when your isp sends you a nasty email threatning to take action if i didn't stop probing other computers. I had done a reformat, it was late so i went to bed forgot to put the firewall on ( i was running under windoze then ) a then a few days later the email arrived, i just put the firewall back on that afternoon.

You live and learn.
 
Old 12-10-2003, 06:45 PM   #8
YeshivisheHarry
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What is the best one for windows
 
Old 12-10-2003, 07:15 PM   #9
shanenin
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Code:
What is the best one for windows
do you know where you are?

or are you refering to a gui interface for iptables?
 
Old 12-11-2003, 01:21 AM   #10
fotoguy
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For windoze I was using Mcafee firewall with anti-virus package, I tried a couple of different ones and Mcafee seem to be the best of the bunch for me.
But i don't have it running on my windoze box anymore, I have a pentium 200 running as a hardened linux box running as a firewall/gateway now. It sits between my cable modem and my 4-port router.
 
  


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