send msg to predefined ip address when linux server shutdown or Reboot
 

Hi All,

I need to know how to send message (or execute script ) when the linux machine shutdown or reboot stage.

Actually I want to start a backup linux machine when main server shutdown or Reboot.

simply, how we can run script while init 0 OR init 6 command

Regards,
hk

If main server down then the backup server have to handle the job, is that you want? Umm.. try with Linux high availability heartbeat.

Try to add script to run levels 0 and 6 .Their scripts lays in /etc/rc6.d and /etc/rc0.d
Copy and existing script and modify it for your work.Each init level init process runs these scripts

If the primary goes down in a controlled manner, then intercepting the appropriate scripts will work. If it's uncontrolled, a heartbeat or similar tool will be reqd.