Solution that the user is not in the sudoers file

Users are not included in the sudoers file. when using the Linux system, we usually use common users for routine operations, the root user is only used for permission assignment and system settings, and the password of the root user cannot be disclosed. Common users execute a solution that is not included in the sudoers file. in Linux, we usually use common users for routine operations, the root user is only used for permission assignment and system settings, and the password of the root user cannot be disclosed. When a common user executes a System program, he or she needs to temporarily escalate permissions. sudo is a common command. he or she only needs to enter the current user password to temporarily escalate permissions. When using the sudo command, we often encounter prompts that the current user is not in the sudoers file. what if this problem is solved? The following steps can be used to solve the problem easily. 1. switch to the root user permission Last login: Tue Sep 24 20:50:51 2013 from 192.168.30.171 [user @ Compile ~] $ Su root password: [root @ Compile user] #2. View/etc/sudoers file permissions. if you have read-only permissions, change to writable permission [root @ Compile user] # ls-l/etc/sudoers-r -- r -----. 1 root 4030 00:57/etc/sudoers [root @ Compile user] # chmod 777/etc/sudoers [root @ Compile user] # ls-l/etc/sudoers-rwxrwxrwx. 1 root 4030 00:57/etc/sudoers [root @ Compile user] #3. execute the vi command, edit the/etc/sudoers file, and add users who want to improve their permissions; find root ALL = (ALL) ALL in the file and add the user information for permission escalation under this row, for example, root ALL = (ALL) ALLuser ALL = (ALL) ALL description: format: (host in the user name Network = (command range executed by the target user who executes the command) 4. save and exit, and restore the access permission of/etc/sudoers to 440 [root @ Compile user] # chmod 440/etc/sudoers [root @ Compile user] # ls-l/etc/sudoers-r -- r -----. 1 root 4030 September 25 00:57/etc/sudoers [root @ Compile user] #5. switch to a common user and test the user permission improvement function