former QueSO home page <URL:http://www.apostols.org/projectz/queso/>:
How we can determine the remote OS using simple TCP packets? Well,
it's easy, they're packets that don't make any sense, so the RFCs
don't clearly state what to answer in these kind of situations.
Facing this ambiguous, each TCP/IP stack takes a different approach
to the problem, and this way, we get a different response. In some
cases (like Linux, to name one) some programming mistakes make the OS
detectable.
QueSO sends:
0 SYN * THIS IS VALID, used to verify LISTEN
1 SYN+ACK
2 FIN
3 FIN+ACK
4 SYN+FIN
5 PSH
6 SYN+XXX+YYY * XXX & YYY are unused TCP flags
All packets have a random seq_num and a 0x0 ack_num.
===> The following configuration options are available for queso-980922_3:
DOCS=on: Build and/or install documentation
===> Use 'make config' to modify these settings
cleanup: Remove expired ports:
2022-03-31 security/revealrk: Deprecate, marked BROKEN on 12+ in 2018
2022-03-31 devel/apache-commons-modeler: Abandoned upstream, last release in
2013
2022-03-31 security/afl: Abandoned upstream, no new release since 2017. Please
consider using security/afl++ instead
2022-03-31 www/mod_line_edit: Abandoned upstream, last release in 2006, Apache
includes mod_sed
2022-03-31 www/myfaces: Unsupported by upstream, released in 2005
2022-03-31 www/mod_backtrace: Abandoned upstream in 2012 (version 2.0)
2022-03-31 security/base: Broken with PHP 7+, forked here
https://github.com/NathanGibbs3/BASE/
2022-03-31 security/find-zlib: Deprecated, no longer relevant
2022-03-31 security/razorback-clamavNugget: Abandonware, last release in 2012
and listed as alpha quality by upstream
2022-03-31 security/shimmer: Abandonware, last release in 2008
2022-03-31 security/kripp: Abandonware, upstream returns 404 and last release
was back in 2007
2022-03-31 security/ipfilter2dshield: Abandonware, no word of it on upstream web
site
2022-03-31 security/sha: Obsolete, we have tools in base
(Only the first 15 lines of the commit message are shown above )
Remove code remnants that test for 3.X and earlier releases of FreeBSD.
The bsd.*.mk architecture has not supported these antique releases for
quite some time.
Hat: portmgr
untested attempt at fixing support for old FreeBSD versions by
adding a dependency on the libpcap port rather than using the
outdated and unfetchable libpcap 0.4 distfile
