05-24-2010
command to check whether the remote host is up or not
Hi,
My script needs to check whether the remote host is up or not.
If it is up i need to start few servers in that host or else just a notification should be sent that the remote host is down?
Could someone help me out in this?
Regards
Arun
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LEARN ABOUT FREEBSD
rwall
RWALL(1) BSD General Commands Manual RWALL(1)
NAME
rwall -- send a message to users logged on a host
SYNOPSIS
rwall host [file]
DESCRIPTION
The rwall command sends a message to the users logged into the specified host. The message to be sent can be typed in and terminated with
EOF or it can be in a file.
DIAGNOSTICS
rwall: RPC: Program not registered The rpc.rwalld(8) daemon has not been started on the remote host.
rwall: RPC: Timed out A communication error occurred. Either the network is excessively congested, or the rpc.rwalld(8) daemon has termi-
nated on the remote host.
rwall: RPC: Port mapper failure - RPC: Timed out The remote host is not running the portmapper (see rpcbind(8)), and cannot accommodate any
RPC-based services. The host may be down.
SEE ALSO
who(1), rpc.rwalld(8), rpcbind(8)
HISTORY
The rwall command appeared in Sun-OS.
BUGS
The sorting options are not implemented.
BSD
April 23, 1991 BSD