Hi Sergio,
From the error provided, I can see that you are not authorized to access the host (10.193.16.23) from the server you are running Endpoint Management (10.254.101.181). In order to provide access, you must log onto the host, create a terminal rule for the Endpoint Management server, and authorize access to the host.
On server 10.193.16.23, run the commands below to authorize access.
# selang
AC> er TERMINAL 10.254.101.181 owner(nobody) defaccess(none)
AC> auth TERMINAL 10.254.101.181 uid(root) access(r,w)
Thanks,
Brian Rehder
CA Support Engineer