bash - How can I run a quick script on lots of remote servers? -

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i need restart apache on dozen servers. can log each 1 , or can have 1 script on first 1 me. can me out?

server 1 has access other servers through known hosts.

manually can run this:

ssh user@server2 service httpd restart exit  ...  ssh user@server100 service httpd restart exit

how can script run server 1 restart servers?

for in $(seq 2 100) ;      ssh user@server$i 'service httpd restart' ; done

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