Gentoo Archives: gentoo-server

From: Nick Van Vlaenderen <nick.vanvlaenderen@×××××××.be>
To: gentoo-server@g.o
Subject: [gentoo-server] portscans and OS detection/uptime
Date: Sun, 05 Oct 2003 10:59:11
Message-Id: Pine.LNX.4.58.0310051256260.23364@donald.home.lan
1 Hi all,
2
3 I was wondering how I could hide my uptime and OS for portscans. If
4 someone scans my server (for example using Nmap), he can see what OS I am
5 running and what the uptime of the box is. Does anyone know which firewall
6 rule I need to prevent this? And how does Nmap collect this information?
7 Is it related to what services there are running on the server?
8
9 Regards,
10
11 Nick Van Vlaenderen
12
13 --
14 The software said "Microsoft Windows 95 or better", so I tried *nix!
15 Bow for opensource development!
16
17 Aoccdrnig to rscheearch at an Elingsh uinervtisy, it deosn't mttaer in
18 waht oredr the ltteers in a wrod are, the olny iprmoetnt tihng is taht the
19 frist and the lsat ltteer is at the rghit pclae. The rset can be a toatl
20 mses and you can sitll raed it wouthit porbelms. Tihs is bcuseae we do not
21 raed ervey lteter by itslef, but the wlohe wrod.

Replies

Subject Author
Re: [gentoo-server] portscans and OS detection/uptime "Jonathan S. Romero" <jo875452@××××××××××××××.edu>
Re: [gentoo-server] portscans and OS detection/uptime Ken Tossell <ken@×××××××.net>
Re: [gentoo-server] portscans and OS detection/uptime Kurt Lieber <klieber@g.o>
Re: [gentoo-server] portscans and OS detection/uptime Sascha Horender <gentoo@××××.biz>