On Fri, Feb 28, 2003 at 02:38:04AM +0800, Tomazo Lujiano wrote:
> Hello, FreeBSD hackers!
> And here is my problem:
> I use FreeBSD-4.7 Stable at home. My machine also provides an Internet access
> in our local network. That's why I set different firewalls, ipfilters and other
> stuff to provide the security in our private net. So, I'd also like to defend
> my server from OS-detectors, such as nmap and some others and change TCP-stack as 
> well.
> And what I do:
> sysctl kern.ostype
> kern.ostype: FreeBSD
> Well, everything is clear. Then I type:
> sysctl kern.ostype=Lotus_Notes/DOMINO
> but see:
> sysctl: oid 'kern.ostype' is read only

Nobody is going to be able to read kern.ostype from your system unless
they have already rooted you.

The human mind ordinarily operates at only ten percent of its
capacity -- the rest is overhead for the operating system.

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