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Hi, |
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|
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echo "0" > /proc/sys/net/ipv4/tcp_timestamps |
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|
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Works for me. |
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|
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Regards, |
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Sascha |
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|
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> -----Ursprüngliche Nachricht----- |
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> Von: Nick Van Vlaenderen [mailto:nick.vanvlaenderen@×××××××.be] |
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> Gesendet: Sonntag, 5. Oktober 2003 13:00 |
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> An: gentoo-server@g.o |
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> Betreff: [gentoo-server] portscans and OS detection/uptime |
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> |
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> |
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> Hi all, |
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> |
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> I was wondering how I could hide my uptime and OS for portscans. If |
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> someone scans my server (for example using Nmap), he can see |
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> what OS I am |
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> running and what the uptime of the box is. Does anyone know |
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> which firewall |
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> rule I need to prevent this? And how does Nmap collect this |
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> information? |
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> Is it related to what services there are running on the server? |
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> |
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> Regards, |
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> |
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> Nick Van Vlaenderen |
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