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
