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SITUATION A (using ssh-agent):
You run mussh and ssh-agent loads your default rsa/dsa key. You
are prompted for your passphrase, you enter it, mussh executes
the commands, kills ssh-agent, and exits.
[doughnut@extradot doughnut]$ mussh -h swing slide junglegym -c 'rpm -q emacs'
Need passphrase for /home/doughnut/.ssh/identity
Enter passphrase for doughnut@extradot.yourdomain.com:
Identity added: /home/doughnut/.ssh/identity (doughnut@extradot.yourdomain.com)
junglegym: package emacs is not installed
slide: package emacs is not installed
swing: package emacs is not installed
SITUATION B (using passwords):
You run mussh but don't have RSA/DSA keys set up. When mussh connects
to each host, it prompts you for the password. After completing
the last host, mussh exits.
[doughnut@extradot doughnut]$ mussh -h swing slide junglegym -c 'rpm -q emacs'
/home/doughnut/.ssh/identity: No such file or directory
doughnut@junglegym's password:
junglegym: package emacs is not installed
doughnut@slide's password:
slide: package emacs is not installed
doughnut@swing's password:
swing: package emacs is not installed
SITUATION C (ssh-agent already running):
If you are already running ssh-agent with the keys loaded, mussh
will not load keys unless you tell it to with the -i flag.
[doughnut@extradot doughnut]$ mussh -h swing slide junglegym -c 'rpm -q emacs'
junglegym: package emacs is not installed
slide: package emacs is not installed
swing: package emacs is not installed
SITUATION D (everything but a goat):
This example uses almost everything you could. Specifying hosts
on the command line AND in a file with comments and blank lines,
executing commands from the command line and from a file, forcing
a unique agent to be loaded, using multiple keys (both RSA and DSA),
and turing debug mode on for verbose output.
[doughnut@extradot doughnut]$ cat dev/spfiles/testhosts
dave@hobo
#test@testhost
merrygoround
[doughnut@extradot doughnut]$ cat dev/spfiles/testscript
date
uptime
[doughnut@extradot doughnut]$ mussh -a -i $HOME/.ssh/identity $HOME/.ssh/id_dsa -d -h swing slide -H dev/spfiles/testhosts -h junglegym -c 'rpm -q emacs' -C dev/spfiles/testscript
DEBUG: Starting Agent
DEBUG: Forcing SSH Agent
DEBUG: Adding Keys
Need passphrase for /home/doughnut/.ssh/identity
Enter passphrase for doughnut@extradot.yourdomain.com:
Identity added: /home/doughnut/.ssh/identity (doughnut@extradot.yourdomain.com)
Need passphrase for /home/doughnut/.ssh/id_dsa
Enter passphrase for /home/doughnut/.ssh/id_dsa:
Bad passphrase, try again:
Identity added: /home/doughnut/.ssh/id_dsa (/home/doughnut/.ssh/id_dsa)
DEBUG: CONNECT junglegym
junglegym: Wed Jun 27 18:34:37 PDT 2001
junglegym: 6:34pm up 19 days, 18:46, 1 user, load average: 0.00, 0.00, 0.00
junglegym: package emacs is not installed
DEBUG: CONNECT dave@hobo
dave@hobo: Wed Jun 27 18:35:35 PDT 2001
dave@hobo: 6:35pm up 20 days, 19:54, 11 users, load average: 0.00, 0.00, 0.00
dave@hobo: package emacs is not installed
DEBUG: CONNECT merrygoround
merrygoround: Wed Jun 27 18:35:27 PDT 2001
merrygoround: 6:35pm up 20 days, 19:53, 1 user, load average: 0.22, 0.11, 0.03
merrygoround: emacs-20.5-7
DEBUG: CONNECT slide
slide: Wed Jun 27 18:35:32 PDT 2001
slide: 6:35pm up 19 days, 17:40, 4 users, load average: 0.00, 0.00, 0.00
slide: package emacs is not installed
DEBUG: CONNECT swing
swing: Wed Jun 27 18:36:15 PDT 2001
swing: 6:36pm up 20 days, 19:54, 3 users, load average: 0.00, 0.00, 0.00
swing: package emacs is not installed
DEBUG: Removing keys from agent
DEBUG: Stopping Agent
SITUATION E (asynchronous mode with ssh-agent already running):
Asynchronous mode (-m) allows you to get done a lot quicker by
not having to wait for one host to finnish before moving on to
the next.
[doughnut@shoe mussh]$ mussh -h swing slide junglegym -c 'echo hello ; sleep 2 ; echo bye' -m2
junglegym: hello
slide: hello
junglegym: bye
swing: hello
slide: bye
swing: bye
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