![]() The line below will enable members of the sys group to run the commands: /bin/kill, /bin/rm using sudo without a password: %sys ALL=(ALL) NOPASSWD: /bin/kill, /bin/rmįor more sudo configuration and additional usage options, read our articles that describe more examples: To permit a user to run a given command ( /bin/kill) using sudo without a password, add the following line: aaronkilik ALL=(ALL) NOPASSWD: /bin/kill To allow a user ( aaronkilik in the example below) to run all commands using sudo without a password, open the sudoers file: $ sudo visudoĪnd add the following line: aaronkilik ALL=(ALL) NOPASSWD: ALLįor the case of a group, use the % character before the group name as follows this means that all members of the sys group will run all commands using sudo without a password. command_list – list of commands or a command alias to be run by user(s) using sudo.tag_list – list of tags such as NOPASSWD.effective_user_list – list of users they must be running as or a run as alias.host_list – list of hosts or a host alias on which users can run sudo.user_list – list of users or a user alias that has already been set.^ This blocks access to console for anyone who is not a member of system or root. If safety is your concern, then your concern should be directed towards remote/code threats versus someone actually touching your computer when you leave the room!!!įood for paranoia(dont type this one in just review it): sudo sed -i 's/#-:ALL EXCEPT (wheel) shutdown sync:LOCAL/-:ALL EXCEPT (wheel) shutdown sync:LOCAL/g' /etc/security/nf "/etc/security/nf" has the layout for access control via tcp/ip(192.168.0.1) communication and through telnet services (tty1&tty2&tt圓.etc) This allows more precise filtering per application via transport protocol. Superuser authentication uses the same pam.d procedure as all other login authentications. There are a lot of checks/balances that 'su' authentication must go through. The second/third commands allows all members of group "root" to be superuser without a password, versus only allowing the user "root" su privileges for authentications.ĭon't mess around with /etc/sudoers. *The first command adds your %username% to the group "root" Goto line 19 and remove the "#" before # auth sufficient pam_wheel.so trust (may be a different line number for some) sudo sed -i 's/# auth sufficient pam_wheel.so trust/auth sufficient pam_wheel.so trust/g' /etc/pam.d/su` Step 1: Open up a terminal window and then type " sudo usermod -a -G root %username%" ![]() %username& is the global variable for your username(replace it with desired username) You can read my security concern/solution for this procedure at the later part of this post. Just enter your password a couple times and then you'll never have to enter it again! This will allow you to add a local admin account to the group "root" which is then un-commented from a template which will allow the entire group "root" superuser privileges. Now for the simple answer! No possible way to mess anything up or fudge your install up. It may be advantageous to only give password free access for certain commands. Sudo is designed to give users just enough access to do their job without the need to expose your entire system. You should really read the documentation. ![]() This will help prevent breaking sudo completely. If you have multiple users on your system, or if this is a file server, all users files could be at risk as root can do anything!Īlso, if you make a mistake, visudo will output and error message and not save changes to the file. Keep in mind that anyone who has access to your terminal while you are logged in - or if you have ssh setup for key-based auth, or (even worse) have enabled password free session logins - complete and unfettered access to your entire system. If all goes well, and you are a member of the steroid_users group, you will be able to issue sudo *some-command* without the bother of needing to enter your password. ![]() To the end of the file, exit, and save the file. For example, if you wanted to give everyone in the steroid_users group root privileges without the need for a password for all commands you would add: %steroid_users ALL=(ALL) NOPASSWD: ALL You will need to decide who you want to give access to it could be ALL for everyone (a very bad idea), a user, or a system group. nano is generally thought to be the easiest to use, but pick the editor you are most comfortable/familiar with. If this is the first time that you have run visudo, it will ask you which editor you prefer. The short answer is run sudo visudo in a terminal. ![]() This is thoroughly explained in the documentation. The real answer to this question can be complicated because sudo is very powerful, and can be configured to do cool things. ![]()
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