Slow and Fast IP addresses on http ?

Tue Jun 17 16:39:15 UTC 2003

In message <20030616210129.GM751 at reifa-wave.karrenberg.net>, Daniel Karrenberg 
writes:
>
>tcp-wrapper.
>
>Check DNS of the client address affected, forward and reverse.
>

It might also be port 113 -- some sites try to query your tcp port 113, 
and wait for a timeout if the port is firewalled.  A better solution 
than blocking it is to send an immediate RST.

		--Steve Bellovin, http://www.research.att.com/~smb (me)
		http://www.wilyhacker.com (2nd edition of "Firewalls" book)