On Thursday 30 September 2004 10:15 am, Tony Ly wrote:

> Theo nmap output tre^n thi`:
> 68/tcp  open  dhcpclient - co' the^? ko ca^`n
> 631/tcp open  ipp - internet printing: cha('c ko ca^`n luo^n
>
> Ba'c co' the^? ba('t ddaa^`u tu+` file na`y: /etc/inetd.conf.  Coi
> trong ddo' co' ca'i na`o lie^n quan dde^'n dhcpclient va` ipp thi`
> comment it out (du`ng text editor, bo? da^'u # tru+o+'c ca'i line

Sau khi cha.y ca'i script /sbin/myfile, go~ :

[EMAIL PROTECTED]:/home/knoppix# nmap -v localhost

Starting nmap 3.55 ( http://www.insecure.org/nmap/ ) at 2004-10-02 
05:06 EDT
Host box (127.0.0.1) appears to be up ... good.
Initiating SYN Stealth Scan against box (127.0.0.1) at 05:06
Adding open port 631/tcp
Adding open port 68/tcp
The SYN Stealth Scan took 1 second to scan 1660 ports.
Interesting ports on box (127.0.0.1):
(The 1658 ports scanned but not shown below are in state: closed)
PORT    STATE SERVICE
68/tcp  open  dhcpclient
631/tcp open  ipp

Nhu+ng trong /etc/inetd.conf ta^'t ca? ca'c do`ng dde^`u dda~ # ca? 
ro^`i (file attach). Va^.y sao khi cha.y nmap -v localhost no' co`n 
ba'o 2 ca'i PORT?

Hie^.n ta.i, khi vu+`a boot ma'y le^n, chu+a cha.y /sbin/myfile thi` 
cu~ng dda~ va`o net ddu+o+.c ro^`i. Cha.y ca'i /sbin/myfile la` dde^? 
ta(ng cu+o+`ng ma^'y ca'i o^? khoa' Yale pha?i kho^ng?

-- 
m k h _ s g n




#<off># # /etc/inetd.conf:  see inetd(8) for further informations.
#
#<off># # Internet server configuration database
#
#
#<off># # Lines starting with "#:LABEL:" or "#<off>#" should not
#<off># # be changed unless you know what you are doing!
#
#<off># # If you want to disable an entry so it isn't touched during
#<off># # package updates just comment it out with a single '#' character.
#
#<off># # Packages should modify this file by using update-inetd(8)
#
# <service_name> <sock_type> <proto> <flags> <user> <server_path> <args>
#
#<off># #:INTERNAL: Internal services
#<off># #echo           stream  tcp     nowait  root    internal
#<off># #echo           dgram   udp     wait    root    internal
#<off># #chargen        stream  tcp     nowait  root    internal
#<off># #chargen        dgram   udp     wait    root    internal
#<off># discard         stream  tcp     nowait  root    internal
#<off># discard         dgram   udp     wait    root    internal
#<off># daytime         stream  tcp     nowait  root    internal
#<off># #daytime        dgram   udp     wait    root    internal
#<off># time            stream  tcp     nowait  root    internal
#<off># #time           dgram   udp     wait    root    internal

#<off># #:STANDARD: These are standard services.
#<off># ftp             stream  tcp     nowait  root    /usr/sbin/tcpd  
/usr/sbin/in.ftpd

#<off># #:BSD: Shell, login, exec and talk are BSD protocols.

#<off># #:MAIL: Mail, news and uucp services.

#<off># #:INFO: Info services

#<off># #:BOOT: Tftp service is provided primarily for booting.  Most sites
#<off># # run this only on machines acting as "boot servers."
#<off># tftp            dgram   udp     wait    root    /usr/sbin/in.tftpd      
in.tftpd /boot

#<off># #:RPC: RPC based services

#:HAM-RADIO: amateur-radio services

#<off># #:OTHER: Other services
#<off># #<off># netbios-ssn     stream  tcp     nowait  root    /usr/sbin/tcpd  
/usr/sbin/smbd
#<off># printer stream tcp nowait lp /usr/lib/cups/daemon/cups-lpd cups-lpd
#<off># vboxd   stream  tcp     nowait  root    /usr/sbin/tcpd  /usr/sbin/vboxd
#<off># saft    stream  tcp     nowait  root    /usr/sbin/tcpd  /usr/sbin/sendfiled
#<off># #<off># 3632           stream  tcp     nowait.100      distccd    
/usr/sbin/tcpd /usr/bin/distccd --inetd --log-file=/var/log/distccd.log --nice=10
#<off># xtel            stream  tcp     nowait  root    /usr/sbin/tcpd /usr/sbin/xteld
#<off># #<off># https   stream  tcp nowait  sslwrap.sslwrap /usr/sbin/tcpd  
/usr/sbin/sslwrap  -nocert -addr 127.0.0.1 -port 80
#<off># #<off># ssmtp   stream  tcp nowait  sslwrap.sslwrap /usr/sbin/tcpd  
/usr/sbin/sslwrap  -nocert -addr 127.0.0.1 -port 25
#<off># #<off># nntps   stream  tcp nowait  sslwrap.sslwrap /usr/sbin/tcpd  
/usr/sbin/sslwrap  -nocert -addr 127.0.0.1 -port 119
#<off># #<off># telnets   stream  tcp nowait  sslwrap.sslwrap /usr/sbin/tcpd  
/usr/sbin/sslwrap  -nocert -addr 127.0.0.1 -port 23
#<off># imaps   stream  tcp nowait  sslwrap.sslwrap /usr/sbin/tcpd  /usr/sbin/sslwrap  
-nocert -addr 127.0.0.1 -port 143
#<off># #<off># ircs   stream  tcp nowait  sslwrap.sslwrap /usr/sbin/tcpd  
/usr/sbin/sslwrap  -nocert -addr 127.0.0.1 -port 194
#<off># pop3s   stream  tcp nowait  sslwrap.sslwrap /usr/sbin/tcpd  /usr/sbin/sslwrap  
-nocert -addr 127.0.0.1 -port 110
#<off># #<off># ftps-data   stream  tcp nowait  sslwrap.sslwrap /usr/sbin/tcpd  
/usr/sbin/sslwrap  -nocert -addr 127.0.0.1 -port 20
#<off># #<off># ftps   stream  tcp nowait  sslwrap.sslwrap /usr/sbin/tcpd  
/usr/sbin/sslwrap  -nocert -addr 127.0.0.1 -port 21
#<off># #<off># ldaps   stream  tcp nowait  sslwrap.sslwrap /usr/sbin/tcpd  
/usr/sbin/sslwrap  -nocert -addr 127.0.0.1 -port 389
#<off># amanda dgram udp wait backup /usr/sbin/tcpd /usr/lib/amanda/amandad

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