Handling of NULL passwords using FTP on the command line

Summary: The FTP server does not require user name and password access, is anonymous access, the user name using the anonymous password is empty direct return

The following is an example

C:\users\user>ftp
Ftp> Open ftp.cmegroup.com
Connect to Ftp.cme.akadns.net.
220-this system is for authorized CME Group users only.
220-
220-individuals using or accessing this system is subject to have all 002
220-activities on the This system monitored, logged and/or recorded.
220-anyone using or accessing this system expressly consents to such
220-monitoring, logging and/or recording and is advised if such
220-monitoring, logging and/or recording reveals possible evidence of criminal
220-activity, improper usage or hacking, systems personnel
220-may provide the evidence of such monitoring, logging and/or recording to
220-management, governmental authorities and/or any other
220-third parties. Any attempted hacking or use of hacking tools on this
220-machine (or any other associated or related system) would
220-be pursued under corporate guidelines as well as under all applicable
220-federal, state and local laws and regulations.
220-
220-
220
All in UTF8 mode.
User (Ftp.cme.akadns.net: (None)): Anonymous
331 Specify the password.
Password:
Successful Login.
Ftp> CD Settle
Directory successfully changed.
Ftp> Get Nymex.settle.20160728.s.txt.zip
PORT command successful. Consider using PASV.
Opening ASCII mode data connection for Nymex.settle.20160728.s.txt.zip (1431832 bytes).
226 Transfer complete.
ftp: Received 1434440 bytes, spents 28.34 seconds 50.62 kilobytes per second.
Ftp> bye
221 Goodbye.

This article is from the "small ant to find the object" blog, please be sure to keep this source http://19840202.blog.51cto.com/24728/1832903

Handling of NULL passwords using FTP on the command line