FTPと改行コード

IIS-FTPにNcatで接続した時にはまったのでメモ。

• IIS-FTPの改行コードはCRLF
• NcatのデフォルトはLF
• telnetはCRLF
• vsFTPdやALFTP、3CDaemonなどはCRLFでもLFでも可
• RFC959J

# ncat -v 10.0.0.100 21

Ncat: Version 5.50 ( http://nmap.org/ncat )

Ncat: Connected to 10.0.0.100:21.

220 Microsoft FTP Service

USER nao 

451 The parameter is incorrect.

# telnet 10.0.0.100 21 

Trying 10.0.0.100...

Connected to 10.0.0.100.

Escape character is '^]'.

220 Microsoft FTP Service

USER nao

331 Password required for nao.

# ncat -vC 10.0.0.100 21

Ncat: Version 5.50 ( http://nmap.org/ncat )

Ncat: Connected to 10.0.0.100:21.

220 Microsoft FTP Service

USER nao

331 Password required for nao.

# ncat --help

  -C, --crlf                 Use CRLF for EOL sequence