While running my sync script a few times, I got this from one of the servers.
@ERROR: Unknown module 'CentOS-incdvd' rsync error: error starting client-server protocol (code 5) at main.c(1296) [receiver=2.6.8]
This was the server:
msync-dvd.centos.org: 109.206.161.25 - Fri Jul 8 13:02:47 EDT 2011
msync.CentOS.org rsync service (l5) ---------------------------------------
Nick Olsen Network Operations (855) FLSPEED x106