hello list, I saw these config lines in a name config-file, @ 1D IN SOA foo.com. admin.foo.com. ( 2007071018 ; Serial 1H ; Refresh 15M ; Retry 1W ; Expire 1D ) ; Minimum The time format is in upper-case,but from what I saw in the bind book,it should be low-case.For example,instead of '1H',it should be written as '1h'. Am I right?thanks.