これをローカルで実行すると、すべてが正常に機能します。
require 'net/ftp'
ftp=Net::FTP.new("myftpserver.com", "username", "password")
ftp.getbinaryfile("/myfile.zip","localfile.zip")
ftp.close
使用しているLinuxサーバーで実行しようとすると、結果は次のようになります。
/usr/local/lib/ruby/1.9.1/net/ftp.rb:273:in `getresp': 500 Illegal
PORT command. (Net::FTPPermError) from
/usr/local/lib/ruby/1.9.1/net/ftp.rb:281:in `voidresp' from
/usr/local/lib/ruby/1.9.1/net/ftp.rb:304:in `block in voidcmd' from
/usr/local/lib/ruby/1.9.1/monitor.rb:201:in `mon_synchronize' from
/usr/local/lib/ruby/1.9.1/net/ftp.rb:302:in `voidcmd' from
/usr/local/lib/ruby/1.9.1/net/ftp.rb:317:in `sendport' from
/usr/local/lib/ruby/1.9.1/net/ftp.rb:325:in `makeport' from
/usr/local/lib/ruby/1.9.1/net/ftp.rb:358:in `transfercmd' from
/usr/local/lib/ruby/1.9.1/net/ftp.rb:420:in `block (2 levels) in
retrbinary' from /usr/local/lib/ruby/1.9.1/net/ftp.rb:166:in
`with_binary' from /usr/local/lib/ruby/1.9.1/net/ftp.rb:419:in `block
in retrbinary' from /usr/local/lib/ruby/1.9.1/monitor.rb:201:in
`mon_synchronize' from /usr/local/lib/ruby/1.9.1/net/ftp.rb:418:in
`retrbinary' from /usr/local/lib/ruby/1.9.1/net/ftp.rb:539:in
`getbinaryfile'
何が問題なのですか?