Tente colocar no /etc/rc.conf essa linha: tcp_drop_synfin="YES"
2008/11/4 Cristina Fernandes Silva <[EMAIL PROTECTED]>: > Thiago, > > Acho que não é FreeBSD este servidor da empresa. verifique.. > > SInfo(V=4.11%P=i386-redhat-linux-gnu%D=11/4%Tm=491046C3%O=21%C=1) > > > > > 2008/11/4 Thiago Gomes <[EMAIL PROTECTED]>: >> Pessoal, >> >> Alguem sabe a regra IPFW para o nmap não desconbrir o meu sistema >> operacional, passei em meus >> servidores e o mesmo apareceu essa mensagem. >> >> nmap -sS -O -P0 -v www.exemplo.com.br >> >> Running (JUST GUESSING) : FreeBSD 5.X|6.X (89%), Microsoft Windows >> NT/2K/XP (86%), Sun Solaris 2.X|7 (85%), Apple Mac OS X 10.3.X (85%), >> Linux 2.4.X (84%), Linksys embedded (84%) >> Aggressive OS guesses: FreeBSD 5.0-RELEASE (89%), FreeBSD 5.2 - 5.3 >> (89%), FreeBSD 5.3-RELEASE (89%), FreeBSD 5.3-STABLE (89%), FreeBSD >> 5.4-RELEASE (88%), FreeBSD 5.2.1 (SPARC) (88%), FreeBSD 5.2-CURRENT - >> 5.3 (x86) with pf scrub all (86%), FreeBSD 5.3 (86%), Microsoft >> Windows XP Pro SP2 (86%), Sun Solaris 2.6 - 7 with tcp_strong_iss=2 >> (85%) >> No exact OS matches for host (test conditions non-ideal). >> TCP Sequence Prediction: Class=truly random >> Difficulty=9999999 (Good luck!) >> IPID Sequence Generation: Incremental >> >> Nmap finished: 1 IP address (1 host up) scanned in 33.029 seconds >> Raw packets sent: 3418 (152.910KB) | Rcvd: 34 (1896B) >> >> Em um servidor de uma empresa que eu conheço que é FreeBSD passei >> novamente só que não apareceu. >> >> No exact OS matches for host (If you know what OS is running on it, >> see http://www.insecure.org/cgi-bin/nmap-submit.cgi). >> TCP/IP fingerprint: >> SInfo(V=4.11%P=i386-redhat-linux-gnu%D=11/4%Tm=491046C3%O=21%C=1) >> TSeq(Class=TR%IPID=I) >> T1(Resp=Y%DF=Y%W=FFFF%ACK=S++%Flags=AS%Ops=MENWNNT) >> T2(Resp=N) >> T3(Resp=Y%DF=Y%W=FFFF%ACK=S++%Flags=AS%Ops=MENWNNT) >> T4(Resp=Y%DF=Y%W=0%ACK=O%Flags=R%Ops=) >> T5(Resp=Y%DF=Y%W=0%ACK=S++%Flags=AR%Ops=) >> T6(Resp=Y%DF=Y%W=0%ACK=O%Flags=R%Ops=) >> T7(Resp=Y%DF=Y%W=0%ACK=S%Flags=AR%Ops=) >> PU(Resp=Y%DF=N%TOS=0%IPLEN=38%RIPTL=148%RID=E%RIPCK=E%UCK=E%ULEN=134%DAT=E) >> >> TCP Sequence Prediction: Class=truly random >> Difficulty=9999999 (Good luck!) >> IPID Sequence Generation: Incremental >> >> Nmap finished: 1 IP address (1 host up) scanned in 27.351 seconds >> Raw packets sent: 1945 (87.104KB) | Rcvd: 1718 (79.394KB) >> >> >> Alguem tem uma dica >> >> Obrigado >> ------------------------- >> Histórico: http://www.fug.com.br/historico/html/freebsd/ >> Sair da lista: https://www.fug.com.br/mailman/listinfo/freebsd >> > ------------------------- > Histórico: http://www.fug.com.br/historico/html/freebsd/ > Sair da lista: https://www.fug.com.br/mailman/listinfo/freebsd > ------------------------- Histórico: http://www.fug.com.br/historico/html/freebsd/ Sair da lista: https://www.fug.com.br/mailman/listinfo/freebsd
