> On Thursday 30 September 2004 07:55 am, [EMAIL PROTECTED] wrote:
>
>> Nhu+ va^.y la` to^'t ro^`i. PC cu?a ba'c na(`m sau lu+ng ca'i
>
>> (ta?i o+? dda^y:
>> http://www.insecure.org/nmap/nmap_download.html). Khi ta?i ve^`
>> ro^`i thi`
>> uncompress va` compile no':
>> tar -jxvf nmap-3.70.tar.bz2
>> configure
>> make
>> make install
>>
>> xong ro^`i cha.y cho ma'y mi`nh:
>> nmap -v localhost
>>
>> Ne^'u output co' cai' gi` kho^ng ca^`n thie^'t thi` remove no' ddi.
>> Ba'c kho^ng ca^`n ma^'y ca'i iptables scripts ddo' (co' thi` cu~ng
>> to^'t, nhu+ng du`ng va`i ca'i ddo+n gia?n tho^i) vi` mi`nh kho^ng
>> pha?i la` server. Ddo.c ma^'y ca'i scripts cu?a ba'c thi` chi? co'
>> nu+o+'c ta^?u ho?a nha^.p ma tho^i :)
>
> [EMAIL PROTECTED]:/home/knoppix# nmap -v localhost
>
> Starting nmap 3.55 ( http://www.insecure.org/nmap/ ) at 2004-10-01
> 21:40 EDT
> Host box (127.0.0.1) appears to be up ... good.
> Initiating SYN Stealth Scan against box (127.0.0.1) at 21:40
> Adding open port 68/tcp
> Adding open port 631/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
>
> Nmap run completed -- 1 IP address (1 host up) scanned in 1.207
> seconds
> [EMAIL PROTECTED]:/home/knoppix#
>
>
> Bie^'t ca'i na`o ca^`n, ca'i na`o kho^ng ca^`n? La`m sao xoa' ca'i
> kho^ng ca^`n?
> DDa^y la` mi`nh ddang cha.y trong Knoppix 3.6, kho^ng pha?i Yoper nhu+
> ban chie^`u. :)
>
> --
> m k h _ s g n
>
>
Ba'c Ha?i lu'c na`y sung su+o+'ng ha'? Na`o la` DSL, Knoppix, Yoper...
Su+o+'ng cho ba'c ma` kho^? cho Tek support (just kidding :))
Cha'u ko du`ng ma^'y distro ddo' ne^n ko ra`nh. Dda.i kha'i co' nhie^`u
ca'ch dde^? ta('t ma^'y ca'i services ko ca^`n, nhu+ng ca'ch la`m thi`
tuy` thuo^.c va`o distro mi`nh du`ng.
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 tu+o+ng u+'ng).
Ba'c ta('t ipp tru+o+'c, ro^`i restart inetd (ne^'u ko bie^'t thi` cho+i
kie^?u M$, reboot :)). Sau ddo' ne^'u ko tha^'y problem gi` thi` tie^'p
tu.c vo+'i dhcpclient. Ne^'u bi. problem thi` bo? no' la.i nhu+ cu~.
Xong ro^`i ba'c cha.y nmap la.i. Ne^'u la`m ddu'ng thi` se~ ko tha^'y
ma^'y services ddo' nu+~a. Ba^y gi+o` muo^'n cho+i filter gi` ddo' cu~ng
ddu+o+.c. Nhu+ng ma` nho+' ddi tu+`ng bu+o+'c nho? dde^? de^?
troubleshoot ne^'u co' chuye^.n gi`.
Have fun...
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