Also the server is running i.e vsftpd_v1
So how do I connect to it? please help
Please check how and which arguments passed with ftp.
I have edited the post. I am using the correct format eg. ftp ip port_addr but then also not connecting
is your issue resolved?
From your screenshot, looks like you have not used the FTP command properly to connect to Qbox Server.
Got it 
not to use that colon