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Tips&Tricks Stealth firewall


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Dutch

Frequent user

Joined: 05 May 2002

Posts: 76

Location: UK

 

Post Posted: Wed Jul 24, 2002 6:13 pm Post subject: Stealth firewall

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(Thanks to rolf for posting this info initially)

 

If you want an easy to configure firewall that gives 'stealth' readings on www.grc.com, you can still use tinyfirewall.

 

Pre-Mdk8.2 it formed part of Control Centre but no longer does, but it is still accessible as it is part of the drakxtools-newt package. Type tinyfirewall at the command line, answer a few Y or N questions, save and exit = stealth firewall in place.

 

Ideal if you haven't got the time to learn/setup/test iptables etc - especially new converts from Windo$e........

 

Dutch

 

 

Maciek

Frequent user

Joined: 04 Jul 2002

Posts: 86

Location: Perth

Post Posted: Tue Oct 01, 2002 4:22 pm Post subject:

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The scanning at GRC.com is extremely limited. I suggest you try the following sources:

 

http://crypto.yashy.com/nmap.php

http://scan.sygatetech.com/

http://www.securitymetrics.com/firewall_test.adp

http://www.auditmypc.com/

 

Use all of them for maximum security, plus use Nessus and nmap from a remote machine.

 

 

fearby

Newbie

Joined: 27 Sep 2002

Posts: 9

Post Posted: Tue Oct 01, 2002 9:29 pm Post subject: Type

tinyfirewall?

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If I type that nothing happens!

Using Mandrake 9 - do I need to install any other packages?

 

 

Dutch

Frequent user

Joined: 05 May 2002

Posts: 76

Location: UK

Post Posted: Wed Oct 02, 2002 9:14 am Post subject:

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AFAIK, Mandrake have removed tinyfirewall from 9.0 - but I'm waiting for the discs to have a look!

 

From what I've read, their replacement firewall seems a bit more problematic.....

 

Dutch

 

 

LB06

Newbie

Joined: 16 Aug 2002

Posts: 4

Location: Hooge Mierde NL

Post Posted: Sat Oct 05, 2002 11:42 am Post subject:

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Well, it's not Shorewall which is a problem, it's the mcc wizard that causes troubles (or at least in my case). When I first installed MDK9 and went through the connection sharing and firewall wizards properly, but after executing one of those wizards I didn't have internet access anymore (through cable). I configured the config files manually and everything worked properly. It's fully stealth now!

 

 

tobyl

Frequent user

Joined: 01 May 2002

Posts: 115

Location: UK

Post Posted: Sat Oct 05, 2002 10:31 pm Post subject:

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I agree with LB06

 

If you are worried about getting 'closed' rather than 'blocked' or 'stealth'

 

when using shorewall, Go to /etc/shorewall/common.def, you will see some lines starting run iptables -A common ......

 

they have REJECT at the end. Change them to DROP I am still experimenting, as there is a REJECT in the policy file, but I don't think this matters as iptables takes up the first option it can, so it never gets there. one last thing, make the changes in the file, then in a terminal as root, type shorewall stop, then shorewall start. This will load yor new config without needing to reboot.

 

 

 

Editor's note: This thread was originally posted at the old MUB (Mandrake User Board at club-nihil). This post is the result of a 99% automatic backup, so due to its nature some text may be lost (improbable but possible).

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