I've used this script:

http://wiki.telvgg.coop/sistemas/mirrors/centos

Right now these are the IP's for msync.centos.org with problems with our mirror

200.6.98.54, rsync exits with error 5
187.45.182.245,rsync exits with error 10

cat /var/log/mirrors/centos/error.csv

utc_date_time,ip_address,rsync_exit_status
2012-02-07-17:16:17,200.6.98.54,5
2012-02-07-17:17:38,200.6.98.54,5
2012-02-07-17:20:25,200.6.98.54,5
2012-02-07-17:22:24,200.6.98.54,5
2012-02-07-17:25:58,187.45.182.245,10
2012-02-07-17:26:22,187.45.182.245,10
2012-02-07-17:28:01,200.6.98.54,5
2012-02-07-17:28:24,200.6.98.54,5
2012-02-07-17:30:24,187.45.182.245,10
2012-02-07-17:30:47,187.45.182.245,10
2012-02-07-17:32:47,187.45.182.245,10
2012-02-07-17:33:09,187.45.182.245,10
2012-02-07-17:34:49,200.6.98.54,5
2012-02-07-17:35:11,200.6.98.54,5


---
Ariel S. Weher
Administrador Técnico
Dto. Sistemas & Networking
Cooperativa Telefónica de
Villa Gobernador Gálvez Ltda.
Tel: +54 341 4921299



On Tue, Feb 7, 2012 at 13:30, Ariel S. Weher <a.weher@telvgg.coop> wrote:
New data:

rsync: failed to connect to msync.centos.org: Connection timed out (110)
rsync error: error in socket IO (code 10) at clientserver.c(122) [Receiver=3.0.7]

Maybe some IP's aren't working.

---
Ariel S. Weher
Administrador Técnico
Dto. Sistemas & Networking
Cooperativa Telefónica de
Villa Gobernador Gálvez Ltda.



On Tue, Feb 7, 2012 at 13:26, Ariel S. Weher <a.weher@telvgg.coop> wrote:
I'm realizing that our mirror (mirrors.coopvgg.com.ar) does not appear as updated in the mirror-status.centos.org within random time intervals. 

Here are some tests from the server:

rsync -4 --recursive --no-motd --times --links --hard-links --delay-updates --stats rsync://msync.centos.org/CentOS-incdvd /var/www/centos/

@ERROR: Unknown module 'CentOS-incdvd'
rsync error: error starting client-server protocol (code 5) at main.c(1524) [Receiver=3.0.7]

Our IP: 200.3.169.80 / 2001:13e8:2:3::80 (the ipv6 has changed, but the rsync command forces to use ipv4 that remains the same).

Maybe some servers does not have the proper ACL

Thanks.

---
Ariel S. Weher
Administrador Técnico
Dto. Sistemas & Networking
Cooperativa Telefónica de
Villa Gobernador Gálvez Ltda.