On Sun, May 10, 2026, at 10:18 AM, G.W. Haywood wrote: > > ... > > the CGI interface can't write config files, getting "TextFileWrite: > > Failed to write /etc/backuppc/localhost.pl.new" when I try to save > > ... > > ... > > I saw the apache user group (www-data) didn't have write access so > > I added group write access to the directory and some files: > > ... > > But still isn't working. > > I'm not sure if you have told us the user:group ownership of directory > /etc/backuppc, but if as I suspect it's backuppc:backuppc then adding > group write won't allow apache2 - running as www-data:www-data - to > write in there unless you also add the www-data user to the backuppc > group. Plus it's trying to write "localhost.pl.new" that fails, not > "localhost.pl", so changing the perms on "localhost.pl" won't help > either. (BackupPC in this case writes a new file, and then moves it > into place over the original, to make the operation more 'atomic'.)
/etc/backuppc directory is user backuppc, group www-data (backuppc:www-data). Permissions are drwxrwxr-x so www-data should be able to write to it. > > Apache is running as www-data (user and group): > > ... > > Any suggestions? > > ... >
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