[CentOS] bind slave sync takes long

Tue Nov 22 14:10:23 UTC 2011
John Doe <jdmls at yahoo.com>

From: Götz Reinicke <goetz.reinicke at filmakademie.de>

> I do have two DNS servers running bind 9.7.3. One master, one slave.
> If I add/update a record on the master, it takes up to more or less 20
> hours until that change is transferred to the slave.

Maybe check the 'refresh' value...?  See: