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RE: Stopping people finding out uptime?



That works. How does nmap know how long the machine is up? Is the
information sent out in every tcp packet?

Thankyou

Charlie

-----Original Message-----
From: Andrew Pearce [mailto:andrewpe@mwads.co.uk] 
Sent: 14 April 2002 21:11
To: debian-firewall@lists.debian.org
Subject: RE: Stopping people finding out uptime?

Charlie,

Try "echo 0 >> /proc/sys/net/ipv4/tcp_timestamps"


-----Original Message-----
From: Charlie Grosvenor [mailto:charlie@cgrosvenor.co.uk] 
Sent: 14 April 2002 18:48
To: debian-firewall@lists.debian.org
Subject: Stopping people finding out uptime?


Hi
            If I port scan my machine nmap finds out how long my machine
has been on for, How can I stop people outside my network from finding
this information out?

Thankyou

Charlie

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