To make 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 Satellite 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
instead. See Section 6.2.2, “Configuring SSH”
Some probes require the daemon. 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::Disk IO Throughput
Linux::Process Counts by State
Linux::Process Count Total
Linux::TCP Connections by State
LogAgent::Log Pattern Match
Network Services::Remote Ping
General::Remote Program with Data
Note that all probes in the Linux group have this requirement.
6.2.1. Installing the Red Hat Network Monitoring Daemon
Install the Red Hat Network monitoring daemon to prepare systems for monitoring with the probes identified by
. Note that the steps in this section are optional if you intend to use
to allow secure connections between the Red Hat Network monitoring infrastructure and the monitored systems. See Section 6.2.2, “Configuring SSH”
rhnmd package can be found in the Red Hat Network Tools channel for all Red Hat Enterprise Linux distributions. To install it:
Subscribe the systems to be monitored to the Red Hat Network Tools channel associated with the system. This can be done individually through the → → subtab or for multiple systems at once through the → tab.
Once subscribed, open the → tab and find the
rhnmd package (under 'R').
Click the package name to open the Package Details page. Go to the Target Systems tab, select the desired systems, and click .
Start the Red Hat Network monitoring daemon on all client systems using the command:
service rhnmd start
When adding probes requiring the daemon, accept the default values for RHNMD User and RHNMD Port: