As a lot of softwares are developed and distributed via the Internet, the number of accesses to the file servers, such as ftp servers or WWWservers, is increasing. To reduce the concentrated accesses to the original file server, the mirror servers which have the same directories and files as what the original server stores have been introduced. However, the inconsistency among the mirror servers and the original server is often observed because of the transferring latency, traffic congestion on the network, and management policy of the mirror servers. Hence, we develop an intermediate ftp proxy server system PFTPD (Proxy FTP Daemon) which guarantees the freshness of the files as well as the dispersal of the accesses concentrated to the original ftp server. We found out that the proposed system can disperse the accesses to the mirror servers with a little overhead. This technology can assure files to be the latest version and adapt to the heterogeneous network environment such as the Internet.