21 Apr
2004
21 Apr
'04
4:33 a.m.
On Tue, 20 Apr 2004, William Stearns wrote:
- We also secondary MAPS RBL+ zone, that's a 54Mbyte zone that updates every 3 hours. (IE 18Mbyte/hour). A 1Mbyte x 10 minutes would be only 6Mbytes/hour, chicken feed. ;)
It all comes down to the bandwidth available Jeff at the primary.
However if you structure your secondaries in a 'calling tree' format, (IE Jeff feeds 2 secondaries, those 2 feed 4 more, etc), then his bandwidth requirements are minimized.
In the secondary named.conf, you list a superior secondary first in the 'masters' record (as well as other alternate sources). Then it will try the various alteratives in the order listed. This reduces Jeff's bandwidth demands and makes the system more robust (alternative paths) at the cost of a bit more complexity and slight delay in update propogation.
--
Dave Funk University of Iowa
<dbfunk (at) engineering.uiowa.edu> College of Engineering
319/335-5751 FAX: 319/384-0549 1256 Seamans Center
Sys_admin/Postmaster/cell_admin Iowa City, IA 52242-1527
#include <std_disclaimer.h>
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