If you want to use some way other than kerberos to get in, you should have a really good reason. If your reason is that you don't know how to setup kerberos for CVS on your laptop, please read the appropriate information at this redmine page
Details about computing accounts at Fermilab are available in this knowledge article with details on connecting to cdcvs available at the redmine page mentioned earlier.
Within the cdcvs:/cvs/cd repository there is also a check_access script, which has recently been updated to allow users control over the permissions of their own modules. This link describes how to modify commit privileges for your module.
The main ftp server ftp.fnal.gov is resident on this system which provides access to registered hosts for general Fermilab software.
For product maintainers, there is also a page to check who has downloaded a given ups product, and a script to check if you are registered to use upd addproduct.
Products for unsupported operating systems, and product versions not recently acccessed have been archived and retired. See the ARCHIVED and RETIRED lists at ftp.fnal.gov . To have a version restored, open a Service Desk Request, selecting the UPS service under Scientific Computing Services.