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
