The Oregon State University Open Source Lab (OSUOSL) is a research and education organization that provides hosting and support services for a variety of open source projects. One of the services provided by OSUOSL is a public FTP server that hosts a number of Linux distributions and other open source software. To access the FTP site, you can use a command line FTP client or a GUI-based FTP client such as FileZilla.
To connect to the FTP site using the command line, open a terminal window and enter the following command:
ftp ftp.osuosl.org
This will connect you to the FTP server. You will need to enter your username and password to log in. Once you are logged in, you can navigate the directories and download files using FTP commands such as cd and get.
You can also use a GUI-based FTP client such as FileZilla to connect to the FTP site. Simply enter the hostname ftp.osuosl.org and your login credentials, and you will be able to browse and download files from the server.
Note that the OSUOSL FTP site may not have all the software or Linux distributions that you are looking for. You may need to search for and download software or Linux distributions from other sources as well.