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Steathy Surfing


mikecanada
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Hi,

 

I have set up the firewall in the suse10.0 OSS by unchecking all boxes,which should stop anything getting through.

I then went to Steve gibson`s Shields Up! site https://grc.com/x/ne.dllbhObkyd2 and ran the Common Ports test.

Everything was `stealthed` apart from port 113 (IDENT).

This was using my Motorola SBS5101 USB modem.However,if I connect using my D-Link combined router//firewall only port 113 is not stealthed using router.

So how do I configure Shorewall to stealth port 113 when using the Motorola?

I know there are arguments that port 113 shouldn`t drop network packets as this can cause problems,but I use router for hours on end never experience any connection slowdowns,even though it does stealth this port.

And of course,if you reject packets,crackers know that your computer exists....

 

Tnx to let me know and helping me out.

 

Mikecanada

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Try adding the following line to the /etc/shorewall/rules file:

 

DROP net fw tcp 113

 

If you have any ACCEPT statements in the rules file, I would put this ahead of them.

 

After making the change in the rules file, as root execute the following commands in a terminal to restart shorewall so the change takes effect (or reboot):

 

service shorewall stop

service shorewall start

 

 

References: the comments in the rules file and the shorewall documentation.

Edited by jboy
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