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Commands tagged su

Commands tagged su from sorted by
Terminal - Commands tagged su - 3 results
# su - <user> ; script /dev/null ; screen -r
2011-07-04 16:26:10
User: dmmst19
Functions: screen script su
Tags: screen su pty
0
Up
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resume other user's screen session via su, without pty error

Normally, if you su to another user from root and try to resume that other user's screen session, you will get an error like "Cannot open your terminal '/dev/pts/0' - please check." This is because the other user doesn't have permission for root's pty. You can get around this by running a "script" session as the new user, before trying to resume the screen session. Note you will have to execute each of the three commands separately, not all on the same line as shown here.

Credit: I found this at http://www.hjackson.org/blog/archives/2008/11/29/cannot-open-your-terminal-dev-pts-please-check.

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alias sshdo='ssh -q -t root@localhost -- cd $PWD \&\& sudo'
2010-10-20 22:33:22
User: darkfader
Functions: alias cd
Tags: sudo su ssh-agent
-2
Up
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sshdo, an alternative to sudo

Run program as root by SSH key forwarding instead of sudoers.

Put this alias line in .bashrc or wherever you like. Alias arguments might need extra escaping.

You might wonder about security. But you'd block out root login as much as possible of course. In sshd_config you put this:

PermitRootLogin no

Match Address 127.0.0.1

  PermitRootLogin without-password

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su -- user
2009-09-28 04:23:43
User: matthewdavis
Functions: su
Tags: bash root su
13
Up
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Change user, assume environment, stay in current dir

I've used this a number of times troubleshooting user permissions. Instead of just 'su - user' you can throw another hyphen and stay in the original directory.

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