CentOS - Oct 2019 - rsync: did not see server greeting.

Hallo,
until last week I used a debian system for syncing debian and centos  
mirrors. Everything worked fine for years.
After installing centos 7 rsync doesn t work any longer. The  
configuration of the firewall is the same as before.

The message  I see is
rsync: did not see server greeting.

Has anyone a hint for me?
Are ther any main differences between rsync debian and rsync centos?

Thanks
Ralf

Zitat von Ralf Prengel <ralf.prengel at rprengel.de>:
> Hallo,
> until last week I used a debian system for syncing debian and centos  
> mirrors. Everything worked fine for years.
> After installing centos 7 rsync doesn t work any longer. The  
> configuration of the firewall is the same as before.
>
> The message  I see is
> rsync: did not see server greeting.
>
> Has anyone a hint for me?
> Are ther any main differences between rsync debian and rsync centos?

Hallo,
found it.
We are using a proxy.sh in /etc/profile.d.
This works fine for all other systems but nit with rsync.
Time to read rsync_manpages.

Ralf