Remote execute command as sudoer via ssh

sshpass -p 'sshpssword' ssh -t <sshuser>@<remotehost> "echo <sudopassword> | sudo -S <command>"
Example: remote install an application(wine). sshpass -p 'mypssword' ssh -t mysshloginname@192.168.1.22 "echo 'mypassword' | sudo -S apt-get install wine" Tested on Ubuntu.

3
By: dynaguy
2012-09-13 20:27:13

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    evandrix · 2012-09-11 01:47:20 0
  • The ssh command alone will execute the sudo command remotely, but the password will be visible in the terminal as you type it. The two stty commands disable the terminal from echoing the password back to you, which makes the remote sudo act as it does locally.


    3
    stty -echo; ssh -t HOSTNAME "sudo some_command"; stty echo
    jmcantrell · 2009-03-04 19:44:36 3
  • Need to query hundreds of hosts with an ssh command ? Of course you'll have setup keys on all your remote HOSTs. But in the case a key is not present this command will skip that node, proceeding on to the next. -t: Force pseudo-tty allocation. This can be used to execute arbitrary screen-based programs on a remote machine. Also prevents unwanted stty messages being sent to console -q: Quiet mode. -o "BatchMode yes" If set to yes, passphrase/password querying will be disabled. This option is useful in scripts and other batch jobs where no user is present Show Sample Output


    1
    ssh -tq -o "BatchMode yes" $HOST <some_command> >> to_a_file
    jp · 2011-03-02 20:33:59 0

What Others Think

It may work, but it's a bad habit to put passwords on the command line. Another user could see them using 'ps'.
flatcap · 300 weeks and 4 days ago
Use public key authentication!
brejktru · 300 weeks and 3 days ago
1) sshpass can take a password via the following additional methods: - file - file descriptor - environment variable (I think) 2) echo the password (environment variable / fd / etc) client side in to the ssh pipe to prevent it from being seen on the server side. 3) use PKI when ever possible.
drscriptt · 300 weeks and 3 days ago
Alternative solutions discussed here - http://serverfault.com/questions/116654/running-sudo-over-ssh
zlemini · 300 weeks and 2 days ago
I haven't tested this, but I don't think that it's necessary -- sudo should prompt for the password via stderr and wait patiently until you provide it. ... you may be prompted for a series of passwords in succession, but as long as you can keep them straight, you should be able to use sudo on the remote machine without providing it on the commandline.
bartonski · 151 weeks and 2 days ago

What do you think?

Any thoughts on this command? Does it work on your machine? Can you do the same thing with only 14 characters?

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