Andreas Gustafsson writes: > It is also essential that two different authoritative servers that > show the same serial number actually serve the same data. That's a wild exaggeration. For example, a pure slave can do anything it wants with its serial numbers. In fact, unless one slave pulls the zone from two different masters, serial-number coherency is irrelevant. ---D. J. Bernstein, Associate Professor, Department of Mathematics, Statistics, and Computer Science, University of Illinois at Chicago