7.2. Red Hat Network Monitoring Daemon (rhnmd)
rhnmd)
To get the most out of your Monitoring entitlement, Red Hat suggests installing the Red Hat Network Monitoring Daemon on your client systems. Based upon OpenSSH, rhnmd enables the RHN Satellite Server to communicate securely with the client system to access internal processes and retrieve probe status.
Please note that the Red Hat Network Monitoring Daemon requires that monitored systems allow connections on port 4545. You may avoid opening this port and installing the daemon altogether by using sshd instead. Refer to Section 7.2.3, “Configuring SSH” for details.
An encrypted connection, either through the Red Hat Network Monitoring Daemon or sshd, is required on client systems for the following probes to run:
Linux::CPU Usage
Linux::Disk IO Throughput
Linux::Disk Usage
Linux::Inodes
Linux::Interface Traffic
Linux::Load
Linux::Memory Usage
Linux::Process Counts by State
Linux::Process Count Total
Linux::Process Health
Linux::Process Running
Linux::Swap Usage
Linux::TCP Connections by State
Linux::Users
Linux::Virtual Memory
LogAgent::Log Pattern Match
LogAgent::Log Size
Network Services::Remote Ping
Oracle::Client Connectivity
General::Remote Program
General::Remote Program with Data
Note that all probes in the Linux group have this requirement.