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Emergency UNIX and Linux Support

Shutdown all systems remotely

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Homework and Emergencies Emergency UNIX and Linux Support Shutdown all systems remotely
# 8  
Old 03-30-2010
Use public keys and sudo. But even then, I think only root can perfom a shutdown.

Good luck!
Last edited by bluescreen; 03-30-2010 at 05:13 PM.. Reason: i type like a monkey on a rock!
# 9  
Old 03-31-2010
At my job we have the ability to ssh into over 80 servers and shut them down using "sudo /etc/shutdown -y -g0".
# 10  
Old 04-06-2010
Crude but quick:

With the key/pair solution implemented, you could issue a for loop.

Script:

Code:
#!/bin/sh
for x in `cat ./server_list`
do
    ssh $x "/sbin/shutdown <time>"
done

Example content of file 'server_list':

Code:
server1
server2
server3

# 11  
Old 04-07-2010
If your systems support IMPI, you might want to take a look at that.

Intelligent Platform Management Interface - Wikipedia, the free encyclopedia

If it has a LOM capability, it'll make this a lot easier. More modern servers have this.
# 12  
Old 04-11-2010
you should look into using tools like capistrano and puppet to do these tasks. you don't even need keys with capistrano, though it does make things easier.

there are similar tools out there, like func, and mcollective.

some links:

Capistrano
Puppet Labs: The Leading Open Source Datacenter Automation
mcollective - Project Hosting on Google Code
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