Thank you all for your advices! All of these are noted!
Based on your suggestions, The power on how the ftp client connecting (active or passive mode) to the ftp server relies on the ftp server itself..? hmm...I think I will call up the person who maintains the ftp server then to allow me to connect in ftp passive and all my problems are solved. I sure do hope that it;s okay with their policy though. I hoping they will allow it, if not I will just have to request SFTP instead.
I am thinking if there is a parameter or option i can use with the ftp command like:
ftp -a <Ip> <port> (-a for active
so I will be able to connect in active mode.
@lithios: I issued command PASV - server replied ?invalid command. (i am connected to remote server via putty) thanks for the link too.
@annielover: Thanks for this...the server I am logging into is a red hat release. I think the remote server with FTP server is a Unix.