Installation Server on CentOS 7

Hi,

 

I'm trying to install a Installation Server on a CentOS 7 but i'm facing some issues. After isntall the 9.0, Bundle 9.08 and the last patches i can with no problems import the IS on the Cell Manager.

When i try to upgrade some Linux RHEL clients that are in the 9.02 version, i receive the error:

"[Critical] <server.domain> [110:24] Client server.domain : client not responding."

But i can do a telnet to 5555 port to/from all servers ( IS, CM and Client ). The DNS are worked fine, with reverse resolution.

The SELinux and Firewall are disabled in the IS.