[kde-linux] Change the number of simultaneous FTP connections

[Particulle]

Hello,
With Krusader or Konqueror, the number of connection ftp simultaneous is 
too large because of a restriction on my account ftp which obliges with 
one or two connections to the same moment (if not a message says "Too 
much connection for this IP"). Please, can you tell me how to change the 
number of simultaneous connections ftp for Konqueror and Krusader ?
Cordially,
Particulinux