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Script to access multiple linux servers to get system details such as CPU usage

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Top Forums UNIX for Advanced & Expert Users Script to access multiple linux servers to get system details such as CPU usage
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Old 01-21-2011
Please deploy some great available NMS/EMS tools like NetXMS, Cacti, OpenNMS, Nagios etc. I mentioned the name in my preference.
You can opt for good economical commercial like OpManager from ManageEngine.
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LEARN ABOUT CENTOS

yppush

YPPUSH(8)						       NIS Reference Manual							 YPPUSH(8)

NAME

       yppush - force propagation of changed NIS databases

SYNOPSIS

       /usr/sbin/yppush [-d domain] [-t timeout] [--parallel # | --port port] [-h host] [-v] mapname...

DESCRIPTION

       yppush copies updated NIS databases (or maps) from the master NIS server to the slave servers within a NIS domain. It is normally run only
       on the NIS master by /var/yp/Makefile after the master databases are changed.  /var/yp/Makefile does not invoke yppush by default, the
       NOPUSH=true line must be commented out.	yppush first constructs a list of NIS slave servers by reading the NIS map ypservers within the
       domain.	A destination host (or a list of hosts with multiple -h commands) can also be specified on the command line. A "transfer map"
       request is sent to the NIS serger at each slave, along with the information needed by the transfer agent ypxfr(8) to callback to yppush,
       which may be printed the result to stderr. Messages are also printed when a transfer is not possible; for instance when the request message
       is undeliverable.

       To specify a port number or use any other yppush options you can edit /var/yp/Makefile directly.

OPTIONS

       -d domain
	   Specify a particular domain. The NIS domain of the local host system is used by default. If the local host's domain name is not set,
	   the domain name must be specified with this flag.

       -t timeout
	   The timeout flag is used to specify a timeout value in seconds. This timeout controls how long yppush will wait for a response from a
	   slave server before sending a map transfer request to the next slave server in the list. By default, yppush will wait 90 seconds. For
	   big maps, this is not long enough.

       --parallel #, -p #
	   yppush normally performs transfers serially, meaning that it will send a map transfer request to one slave server and then wait for it
	   to respond before sending the next map transfer request to the next slave server. In environments with many slaves, it is more
	   efficient to initiate several map transfers at once so that the transfers can take place in parallel. It is not possible to run in
	   parallel and assign a fixed port with the --port flag

       --port port
	   specify a port for yppush to listen on. By default, yppush will ask portmap(8) to assign it a random port number. It is not possible to
	   assign a port with this option and run in parallel with the --parallel or -p flag

       -h host
	   The host flag can be used to transfer a map to a user-specified machine or group of machines instead of the list of servers contained
	   in the ypservers map. A list of hosts can be specified by using multiple instances of the -h flag.

       -v
	   Verbose mode: causes yppush to print debugging messages as it runs. Note specifying this flag twice makes yppush even more verbose.

SEE ALSO

       domainname(1), ypserv(8), ypxfr(8)

BUGS

       The mechanism for transferring NIS maps in NIS v1 is different that that in NIS version 2. This version of yppush has support for
       transferring maps to NIS v2 systems only.

AUTHOR

       Thorsten Kukuk <kukuk@linux-nis.org>

NIS Reference Manual						    04/10/2013								 YPPUSH(8)