[CentOS-mirror] Error rsync.

Fri Jun 30 06:46:50 UTC 2017
Support Manager <phuong.n at onet.vn>

I registered centos-mirror as template: 
HTTP: http://mirror.onet.vn/centos/
FTP: ftp://mirror.onet.vn/centos/ 
RSYNC: rsync: //mirror.onet.vn/centos/

Sync schedule: Every 2 hrs
Bandwidth: 1000Mb/s
Location: (For US : also mention the State)
Sponsor: onet.vn
Sponsor URL:
IPv4 address to authorize:
IPv6 address to authorize: 
Email contact: support at onet.vn
Mirroring AltArch  : no
But why do not I see it on the list mirror centos! 
And why i run this command rsync -aqzH --delete msync.centos.org::CentOS / var / www / html / centos / @ERROR: Unknown module 'CentOS' Rsync error: error starting client-server protocol (code 5) at main.c (1516) [Receiver = 3.0.9] Is not synchronized to be! 
Thank you!
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