"Stealth up" port 80 Post: 302444440

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Special Forums Cybersecurity "Stealth up" port 80 Post 302444440 by wiluni on Thursday 12th of August 2010 12:30:33 AM

08-12-2010

Registered User

"Stealth up" port 80

ipables - stealth port 80

This is how I did set up my iptables. It's basic, easy and simple, but it suits my needs.

Code:

    iptables -A INPUT -i lo -j ACCEPT
    iptables -A INPUT -m conntrack --ctstate ESTABLISHED,RELATED -j ACCEPT
    iptables -A INPUT -p tcp --dport 80 -j ACCEPT
    iptables -A INPUT -j DROP

What I'm not happy yet is about port 80. At the "stealth up" test, it is shown as closed. I would rather prefer it to be stealth. i know most people advocate that closed or stealth, is equally secure. I wouldn't argue that. It's just because, if there's no difference, then my preference is to have it shown stealth.

Now, I'm quite new to Linux and don't have a clue about getting that change done. I tried to search for a solution here in the forums, but got a 4 page results.... and also tried earlier to google it, with no success.

Any help would be much appreciated.

Last edited by pludi; 08-12-2010 at 02:13 AM.. Reason: code tags, please...

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ip6tables-apply

iptables-apply(8)					      System Manager's Manual						 iptables-apply(8)

NAME

       iptables-apply - a safer way to update iptables remotely

SYNOPSIS

       iptables-apply [-hV] [-t timeout] ruleset-file

DESCRIPTION

       iptables-apply  will  try  to  apply  a new ruleset (as output by iptables-save/read by iptables-restore) to iptables, then prompt the user
       whether the changes are okay. If the new ruleset cut the existing connection, the user will not be able to answer  affirmatively.  In  this
       case, the script rolls back to the previous ruleset after the timeout expired. The timeout can be set with -t.

       When called as ip6tables-apply, the script will use ip6tables-save/-restore instead.

OPTIONS

       -t seconds, --timeout seconds
	      Sets the timeout after which the script will roll back to the previous ruleset.

       -h, --help
	      Display usage information.

       -V, --version
	      Display version information.

SEE ALSO

       iptables-restore(8), iptables-save(8), iptables(8).

LEGALESE

       iptables-apply is copyright by Martin F. Krafft.

       This manual page was written by Martin F. Krafft <madduck@madduck.net>

       Permission is granted to copy, distribute and/or modify this document under the terms of the Artistic License 2.0.

								    2006-06-04							 iptables-apply(8)