Note: You don't need any special options with SSH as the SSH server always creates a login shell to be accessed by the SSH client. It works for localhost as well as for other hosts and provides public key authentication that works without any interactive input. ![]() If you want to run commands as a different user without performing authentication from the keyboard, you might want to use SSH instead. The sudoers file is basically a config file containing data about the users, groups, and their. I noticed that you are using -S and I don't think it is generally a good technique. One method to add users is by adding them to the sudoers file. # strace -f -e process sudo -S -i -u user echo \$HOMEĮxecve("/usr/bin/sudo",, ) = 0 The output bellow shows that the shell is being called with -login and with the specified command, just as in your explicit call to bash, but in addition sudo can do its own work like setting the $HOME. ![]() I have just checked the last example with strace which tells you exactly what's happening. Add an hbacrule that allows bob to log into hosts that are members of the webservers Host. ![]() Note: The backslash character ensures that the dollar sign reaches the target user's shell and is not interpreted in the calling user's shell. First, create a new User Group named webadmin and add bob as a member. You can adopt any of the methods to do so, but terminal quickly does the process. When command is not specified you'll get a login shell prompt, otherwise you'll get the output of your command.Įxample (with a specified user): sudo -i -u userĮxample (with a command): sudo -i -u user whoamiĮxample (print user's $HOME): sudo -i -u user echo \$HOME The first method is for terminal enthusiasts and the second method refers to graphical support of adding users to sudoers. To invoke a login shell using sudo just use -i. How to Give a User Sudo Privileges in Ubuntu Server.Create User:sudo adduser iamubuntu2Give user Administrative Privileges:sudo usermod -aG sudo iamubuntu2De.
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