wu-ftpd (wu-ftpd-2.6.0-14.6x) seems to have been compiled with
no user/group names appears ...
According to documentation this configure option :
"Makes the internal ls display UID and GID instead of
user/group names. This is faster especially on
systems with many users, but the ls output looks
That's is differnet from the last version of wu-ftpd in 6.2 release.
How to do to have same previous behaviour ?
We are not using the internal ls because it has not had enough testing.
The external ls command is run chrooted, so it can't resolve user/group names if
you don't have a /home/ftp/etc/passwd and /home/ftp/etc/group file.
The internal ls feature was enabled in the wu-ftpd update packages, as I
mentioned in my additional comments to bug # 13492.