Simple ftp server for windows9/26/2023 If it needs to run on another host, the external server IP must be manually set as "myIp" in handlePasv(). If the FTP server and client are running on the same host, it can only work in Passive Mode.This could easily be exploited to crash the server by just opening several thousands of connections until the JVM crashes. The number of accepted connections is not limited.Java allows sockets on ports below 1024 only when the JVM is executed in super user mode (which IDEs normally won't do). If this is executed within an IDE (like Eclipse or IntelliJ IDEA), the control port likely needs to be a number larger than 1024.Two clients writing to the same file will result in invalid results. File system access is not synchronized.This implementation only prints names of files and folders, no additional information. Not working with GUI ftp clients, because they need to receive directory listings in /bin/ls format.Supports extended FTP arguments (EPSV instead of PASV and EPRT instead of EPRT).User name and password are not case sensitive Default user name is "comp4621" and password is "network".Standard control port is 1025, standard data port is 1026.Multi threaded (multiple users can transfer files at the same time).Supports binary/image and ASCII transfer mode.Supports both IPv4 and IPv6 (thanks to Support for both active and passive mode connections.Works with standard Windows/Linux/Mac terminal tools ftp, telnet and curl.The main features of this implementation are: Run it at your own risk – you probably should not use it in production. FTP server software is designed to reliably handle hundreds or even thousands of clients but the server’s actual performance is still limited by the server computer and your network.This is a simple implementation of a FTP server in Java, which was built as a class project for COMP4621 (Computer Communication Networks) at Hong Kong University of Science and Technology (HKUST) in fall semester of 2016. If your FTP server will be handling many clients, consider upgrading your network connection or your server computer. See your FTP server’s documentation and talk to your network administrator for details. For example, FTP over SSH uses the SSH port, which is 22 (default). If you’re using a secured FTP protocol (and you really should), you’ll have to open the ports for the secured connections too.The default ports for the unsecured FTP protocol are 20 and 21.Talk to your IT team’s network administrator or your ISP about opening the following ports in your firewall: This shouldn’t be a problem because there’s FTP server software for Windows, macOS, Linux, and practically any other operating system that connects to the internet.Īlso make sure that the computer has enough disk space to store the files that you and your remote collaborators will be getting and putting.īecause of FTP’s security risks, your network might be configured to block FTP. Make sure that the FTP server software you choose supports your host computer’s operating system. On the computer that will host your FTP server, you’ll need a user account with administrator or root privileges to install, configure, and administer the server.
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