Hi all:
Suddenly, after a long, functioning run of the mysql server, all the non-root
accounts went bad, with:
Access denied for user 'non_root_user'@'localhost' (using password:
YES)
Authenticating with "non_root_u...@server.ip.address" still works ( the
bind-address in my.cnf is mapped to server.ip.address )
Poking around in puzzlement and comparing the current, broken state with the
functioning state (from backup) I discovered that in the broken version there
is this extra line in the information_schema.USER_PRIVILEGES table:
| ''@'localhost' | NULL | USAGE
| NO |
(Note the null-string user prepended to "@localhost")
Again: the functional, non-broken state does NOT have this entry. Thus, my
current theory is that this line is the culprit. Prior to the failure I had a
surge of experimental installations, installing third-party software that
created mysql tables, and can't clearly retrace everything I did, at this
point, to pinpoint the installation that may have caused it.
Be that as it may...
(1) Is my theory correct?
(2) If that line should not be there...
(a) How do I remove it, properly? I don't have debian-sys-maint
privileges to delete the line. (Or do I?)
(b) Are there other tables, besides USER_PRIVILEGES, that would need to
be updated/purged
My version:
mysql Ver 14.14 Distrib 5.1.41, for debian-linux-gnu (i486) using readline 6.1
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