Re: TCP_DROP_SYNFIN and dcons in freesbie

Josh Paetzel <[email protected]> Sun, 07 Dec 2008 16:40:10 -0600
Newsgroups gmane.os.freebsd.freesbie
Message-ID <[email protected]>
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Raoul wrote:
> Hello list,
> =

> Newbie on this list, i try to compile freesbie on Current FreeBSD
> from Yesterday on a i386 machine.
> =

> i am facing towards this error:
>     in .tmp_buildkernel:
> cd /usr/src/sys/i386/conf;  PATH=3D/usr/obj/usr/src/tmp/legacy/usr/sbin:/=
usr/obj/usr/src/tmp/legacy/usr/bin:/usr/obj/usr/src/tmp/legacy/usr/games:/u=
sr/obj/usr/src/tmp/usr/sbin:/usr/obj/usr/src/tmp/usr/bin:/usr/obj/usr/src/t=
mp/usr/games:/sbin:/bin:/usr/sbin:/usr/bin  config  -d /usr/obj/usr/src/sys=
/FREESBIE  /usr/local/share/freesbie/conf/i386/FREESBIE
> /usr/local/share/freesbie/conf/i386/FREESBIE:
> unknown option "TCP_DROP_SYNFIN"
> =

> =

> TCP_DROP_SYNFIN is an option of rc.conf
> and src/etc/rc.d/networkoptions.
> =

>     the man rc.conf(5) says:
>      tcp_drop_synfin
> 		 (bool) Set to ``NO'' by default.  Setting to ``YES'' will
> 		 cause the kernel to ignore TCP frames that have both the SYN
> 		 and FIN flags set.  This prevents OS fingerprinting, but may
> 		 break some legitimate applications.
> =

> so, my first question:
> is Freesbie suited to compile on CURRENT?
> and if so, how to solve this error?
> =

> Second: i try to compile dcons_crom and dconschat in freesbie,
> do you plan to integrate them in the next version?
> It would be very useful for me at least and certainly for others.
> =

> Thanks in advance, and ciao.
> =

> Raoul
> [email protected]

You need to take the option TCP_DROP_SYNFIN out of the Freesbie kernel
configuration file in /usr/local/share/freesbie/conf/i386/FREESBIE

- --
Thanks,

Josh Paetzel

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