[FUGSPBR] OFF-TOPIC - NMAP eoutros

[FreeBSD]

Luiz,

Gostaria de saber se estou realmente barrando as portas abaixo (execeto a
443) e o que mais eu poderia instalar no firewall para ajudar na segurança.
(ex: Um SNORT, PORTSENTRY(IDS) ou qualquer outra coisa).

Alan Lopes

----- Original Message ----- 
From: "FreeBSD" <free.bsd em terra.com.br>
To: "Grupo Brasileiro de Usuarios FreeBSD" <fugspbr em fugspbr.org>
Sent: Saturday, July 12, 2003 3:09 AM
Subject: [FUGSPBR] OFF-TOPIC - NMAP eoutros


> Galera,
>
> Instalei um  firewall e depois passei o NMAP de uma rede externa o mesmo
me
> retornou o log abaixo, alguem podem me explicar o que esta acontecendo.
>
============================================================================
> ================
> Starting nmap V. 3.00 ( www.insecure.org/nmap )
> Interesting ports on xxxx.xxxxx.com.br (XXX.XXX.XXX.XXX):
> (The 1593 ports scanned but not shown below are in state: filtered)
> Port       State       Service
> 20/tcp     closed      ftp-data
> 21/tcp     closed      ftp
> 22/tcp     closed      ssh
> 25/tcp     closed      smtp
> 110/tcp    closed      pop-3
> 443/tcp    open        https
> 2301/tcp   closed      compaqdiag
> 5999/tcp   closed      ncd-conf
> 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=3.00%P=i686-pc-windows-windows%D=7/11%Time=3F0E340C%O=443%C=20)
> TSeq(Class=TR%IPID=I%TS=100HZ)
> T1(Resp=Y%DF=Y%W=E000%ACK=S++%Flags=AS%Ops=MNWNNT)
> T2(Resp=N)
> T3(Resp=Y%DF=Y%W=E000%ACK=S++%Flags=AS%Ops=MNWNNT)
> T4(Resp=Y%DF=N%W=0%ACK=O%Flags=R%Ops=)
> T5(Resp=Y%DF=N%W=0%ACK=S++%Flags=AR%Ops=)
> T6(Resp=Y%DF
> =N%W=0%ACK=O%Flags=R%Ops=)
> T7(Resp=Y%DF=N%W=0%ACK=S%Flags=AR%Ops=)
> PU(Resp=N)
> Uptime 2.387 days (since Tue Jul 08 15:32:36 2003)
> Nmap run completed -- 1 IP address (1 host up) scanned in 367 seconds
>
============================================================================
> ================
>
> O que vcs recomenda a mais para  melhorar a segurança da minha rede? ex:
> snort , porsentry, etc
>
> Att,
>
> Alan Lopes
>
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