stop uptime and name + version querying

Jason Opperisano opie at
Tue Apr 12 14:48:18 CEST 2005

On Tue, Apr 12, 2005 at 12:15:42PM +0200, Brent Clark wrote:
> Hi
> I would like to know if iptables is the correct tool to stop people from 
> retriving data, such as what "NAME" of services I run (e.g vsFTPd) and 
> other things like (Uptime 90.302 days (since Wed Jan 12 03:08:12 2005)) etc
> And if so, how would you go about stoping the querys etc.
> Does anyone know what service nmap talks to, to determine how long the 
> box has been up and running for.
> Just something I was thinking, kind regards

just a stab in the dark, but what does:

  sysctl net.ipv4.tcp_timestamps

have to say?


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