[Markus Schabel] > Sorry, I don't see why this is needed nowadays. It is needed to be compatible with POSIX, and we do want Debian Edu to be compatible with POSIX.
The limit in the number of characters in a user name is given by _POSIX_LOGIN_NAME_MAX in POSIX. See <URL:http://www.opengroup.org/onlinepubs/007908799/xsh/limits.h.html> for the current value. I am pretty sure file group have the same limitation, but was unable to find it when I had a brief look for it.
