unix sudo command example

", such as the user's home directory and other personalization settings for the user.Normal user switch other users need to know the password of other users, the root user to use the SU command to switch other users, do not need to know the user password2. sudo commandThe use of sudo is to add a command to execute afte

Did you ever get an "access Denied (Permission denied)" error when using the Linux command line? This may be because you are trying to perform an operation that requires root permissions. For example, the following shows an error that occurs when I try to copy a binary file into a system directory.Shell denial of accessSo how do you solve this error? Very simple, use the

root right execution commandAlthough the SU command makes it easy for ordinary users to take over the root user under the root user's work, but requires the root user authorization password, we know that the common use for more than one, so the root password issued many times, once accidentally leaked, it is not safe. We have not long-term root password method, but also to allow ordinary users to work, of course,

as follows: Foobarall= (All) After the save exits, switch to the Foobar user, and we execute the command with its identity: Copy Code code as follows: [foobar@localhost~] $ls/root Ls:/root: Not enough permissions [foobar@localhost~] $sudols/root PassWord: Anaconda-ks.cfgdesktopinstall.loginstall.log.syslog Well, let's limit Foobar's right to let him do whatever he wants. For

below (preferably with tab as a blank):　　Foobar all= (All) allAfter saving the exit, switch to the Foobar user, and we execute the command with its identity:[Email protected] ~]$ Ls/rootLS:/root: Insufficient Authority[email protected] ~]$ sudo ls/rootPassWord:Anaconda-ks.cfg Desktop Install.log Install.log.syslogWell, let's limit Foobar's rights and let him do whatever he pleases. For

see it, Root has all the permissions, just follow the example of an existing root, we add a line below (preferably with tab as a blank):　　Foobar all= (All) allAfter saving the exit, switch to the Foobar user, and we execute the command with its identity:[Email protected] ~]$ Ls/rootLS:/root: Insufficient Authority[email protected] ~]$ sudo ls/rootPassWord:Anacon

below (preferably with tab as a blank):　　Foobar all= (All) allAfter saving the exit, switch to the Foobar user, and we execute the command with its identity:[Email protected] ~]$ Ls/rootLS:/root: Insufficient Authority[email protected] ~]$ sudo ls/rootPassWord:Anaconda-ks.cfg Desktop Install.log Install.log.syslogWell, let's limit Foobar's rights and let him do whatever he pleases. For

Tags: linux root su sudoSU command:1, SU Switch user command example: su-aming2. WhoAmI View Current User commands3. PWD View current directoryExample: Input su aming can also switch users, but the directory is not in its own user directory, as follows:[email protected] ~]# su aming[Email protected] root]$ pwd/root[[email protected] root]$ lsLS: Unable to open Di

default is to open the configuration file in VI, with VI to modify the file. We can modify this default at compile time. Visudo does not save a configuration file with syntax errors, it prompts you for problems and asks what to do with it, like this:At this point we have three options: Type "E" is re-edit, type "X" is not saved exit, type "Q" is exit and save. If you do select Q, then sudo will no longer run until the error is corrected.Now, let's ta

192.168.10.0/24= (Root)/usr/sbin/useraddThe above configuration only allows Nick to connect to the host on the 192.168.10.0/24 network segment and execute the useradd command with root privileges.You do not need to enter a password when setting sudoYou always need to enter a password event when you execute the sudo command (aside from security). Some scenarios a

description: the configuration file for configuring sudo is in/etc/sudoers. Generally, you can use the mongodo command to safely open and edit the file. Run the following command to view the usage of/etc/sudoers: man 5 sudoers. The/etc/sudoers file contains the following two parts: 1. alias settings include User_Alias, Host_Alias, Runas_Alias, and Cmnd_Alias, wh

real time. ⑤-K parameter example 123456 [root@localhost ~] # su - tom [tom@localhost ~]$ sudo -k # End password Validity Period [tom@localhost ~]$ sudo /usr/sbin/useradd test2 [ sudo ] password for tom: # After the validity period ends, execute a special command