Trypes ????

Michalis Kabrianis kabrianis at hellug.gr
Thu Mar 25 14:42:40 EET 1999


> 
> Epeidh thelo na matho perissotera gia security malista exo ksinisi kai ena
> prosopiko project "Secure Your LinuxBox" thelo na rotiso kati sxetiko.
> 
> Ean pao kai kano commented tis parakato grammes
> 
> ftp     stream  tcp     nowait  root    /usr/sbin/tcpd  in.ftpd -l -a
> telnet  stream  tcp     nowait  root    /usr/sbin/tcpd  in.telnetd
> gopher  stream  tcp     nowait  root    /usr/sbin/tcpd  gn
> 
> Den tha mporei kanpios na ektelei tis parapano command oste na exei prosbash
> sto mhxanima

Gia na to katalabeis, fantasou to eksis:
To in.telnetd (kai ta alla alla pianw ena paradeigma) "sikwnetai" molis o inetd
katalabei kapoia klisi sto port 23 (i oti tou anafereis sto services).
Afairwntas aytin tin grammi apo to inetd.conf, den tha apantaei katholou se
kliseis sto port 23 (ayto pou leei telnet). Ara den ginontai dektes kliseis
PROS to mixanima sou.

> ego omos tha mporo kano telnet,ftp se allous;

Nai, giati ekei trexeis ton client. Mporei na mion trexei katholou i inetd kai
ayto den se enoxlei katholou (paradeigma sta windows pou den exeis inetd oute
telnet daemon, alla mporeis na kaneis APO to mixanima telnet PROS ta eksw).

> Mporei na einai xazi h erotisi mou alla singoresteme den ksero apo afta kai
> gia afto aloste ksenisa to project gia na matho:)

Tha sou proteina to network programming (nomizw oti etsi legetai) tou padovano.
To kefalaio 3 i 6 ta anaferei poly kala.

> Filika,
> 
> Pavlos

Michalis Kabrianis
kabrianis at hellug.gr
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