10-08-2008
Here in lies the problem. Our network security officer will not allow ssh as root. Also, we have many "flavors" of unix/linux which have different shutdown options. I tried something like this but it does not work on all the servers. (They do not like the <<\EOT...EOT construct)
$1 is list of remote servers. mbaker has sudo root privilege
cat $1 | while read X
do
echo "Starting shutdown of $X"
ssh -T ${X} << \EOT >> Emergency_shutdown.log 2>> error.log
name=`uname -n`
echo "name = $name"
type=`uname -a | awk '{print $1}'`
echo "type = $type"
if [ "$type" = "SunOS" ]
then
echo "Emergency shutdown initiated for $name."
# sudo -u root shutdown -y -i5 -g0 "Emergency shutdown started!!!!!" &
fi
if [ "$type" = "Linux" ]
then
echo "Emergency shutdown initiated for $name."
sudo -u root /sbin/shutdown -k now "This is just a test. Not really re-booting." < /dev/null > /dev/null 2>&1 &
fi
EOT
if [ $? -ne 0 ]
then
echo "Host $X connect failed."
fi
done
exit 0
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LEARN ABOUT OSF1
shutdown
shutdown(2) System Calls Manual shutdown(2)
NAME
shutdown - Shuts down socket send and receive operations
SYNOPSIS
#include <sys/socket.h>
int shutdown ( int socket, int how );
STANDARDS
Interfaces documented on this reference page conform to industry standards as follows:
shutdown(): XNS5.0
Refer to the standards(5) reference page for more information about industry standards and associated tags.
PARAMETERS
Specifies the file descriptor of the socket. Specifies the type of shutdown. Values are: To disable further receive operations To disable
further send operations To disable further send operations and receive operations
DESCRIPTION
The shutdown() function disables receive and/or send operations on the specified socket.
RETURN VALUES
Upon successful completion, a value of 0 (zero) is returned. Otherwise, a value of -1 is returned and errno is set to indicate the error.
ERRORS
If the shutdown() function fails, errno may be set to one of the following values: The socket parameter is not valid. The how argument is
invalid. Insufficient resources are available in the system to complete the call. The available STREAMS resources were insufficient for
the operation to complete. The socket is not connected. The socket parameter refers to a file, not a socket.
RELATED INFORMATION
Functions: getsockopt(2), read(2), recv(2), recvfrom(2), recvmsg(2), select(2), send(2), sendto(2), setsockopt(2), socket(2), write(2)
Standards: standards(5) delim off
shutdown(2)