sapphire su

Troubleshooting of Logon failures when su switches to sqlplus in Oracle, oraclesqlplusProblem description:The oracle database in the production environment suddenly fails to log on, and the oracle database in the rlwrap production environment suddenly fails to log on. rlwrap sqlplus "/as sysdba" reports the following error: rlwrap[Oracle @ localhost root] $ rlwrap sqlplus "/as sysdba"Rlwrap: warning: your $ TERM is 'xtermin' but rlwrap couldn't find i

Linux login non-login shell and su, sudo related concepts, linuxlogin1. login non-login shell In Linux, the kernel will create the init process to perform a series of system initialization operations. When a user logs on to the shell, the related logon configuration files are read from both the pseudo-terminal Logon: ssh, the X11 console, and the tty console. Linux has two types of Logon shells: login and nologin: Login shell: Required for shell l

Because the root user has full operation permissions on the system, in order to avoid some mistakes, we recommend that you log on to the system as a general user. if necessary, you need root operation permissions, then, run the "su-" command to log on as the root user. Generally, you can log on as the root user to configure the system as administrator by executing the "su-" command and entering the correct

The difference between Su and sudo is not clear, and it is often compiled recently.ProgramAnd now I want to write down the differences between them and learn from them. Difference between Su and sudo:1. Commonalities: root user permissions;2. Differences: su only obtains the root permission, and the work environment remains unchanged. The user's work environment

For Linux users, you can use the su and sudo commands. The Use Cases of these two commands are different.Su if your current identity is root, you can use the su command to switch to any other user (without a password), as shown below: [root@lx200 ~]# su - oracle[oracle@lx200 ~ ]$ If your current identity is not root (a common user) and you want to switch to root

#id/whoami View Current userSU Switch User#su-username"-" function, plus after initializing the various environment variables of the current userSwitch environment variables. No-change the past, the directory will not change, the path will not changeComparisons are as follows:Su aming123[Email protected] root]$ pwd/root[Email protected] root]$ echo $PATH/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin:/root/bin[[email protected] root]$ lsL

Tags: ROC service Relationship General hints Complex add ADO workRoot users have the supremacy of the right, then our OPS personnel is not directly under the root user to deal with all problems? The answer is no, the greater the power, the greater the responsibility, the person will be wrong, so we have to do without prejudice to our work, as far as possible to limit our power, so as to avoid accidental operation caused disasterOne-su command---switch

Linux study notes -- usage and differences of su and sudo commands Abstract: This article mainly introduces the functions of the su and sudo commands and the differences between them. And usage I. Differences between the two Su is used for switching between users. Sudo is used by common users to execute specified commands with the root permission. II. Introduct

Typically, the average user enters the correct rootpassword by running the "Su-" command. Ability to log on as the root user for administrator-level configuration of the system.But. In order to further enhance the security of the system, it is necessary to establish a group of administrators, simply agree to this group of users to run the "Su-" command to log on as the root user. Users of other groups canno

sudo :Su:switch UserUser Switching in two ways:(1) su-user, su-l user(2) SU usersu-c ' COMMAND ' do not switch the user's identity, execute the commandsudo : (as if running as Administrator on window) executea command as another user , executing the specified one as another user ;CommandAuthorization mechanism implementation:Authorization file,/etc/sudoersUse of

360 one-click root su analysis and 360rootsu Analysis Today, a colleague asked me why 360 of the su permission is 755. I did not pay attention to this detail before. I checked my mobile phone and used the 360root su. Since there is no SUID or SGID permission, how does one access things under the root user. So I spent some time studying it. 360 was mainl

In general, the average user can log on as the root user to configure the system at the administrator level by executing the "Su-" command and entering the correct root password.However, in order to further enhance the security of the system, it is necessary to establish a group of administrators, only allow users of this group to execute the "Su-" command to log on as the root user, and let other groups of

In the previous two sections, we introduced the basic knowledge of users and user groups and how to manage users and user groups. Next let's take a look at other user-related commands.Finger tool for viewing user informationChfn tool for changing user informationId: view the UID, GID, and user group of the user.Su User Switching ToolSudo uses another user to execute commands (execute a command as another user), su is used to switch users, and then the

sudo: temporarily switch to Superuser mode to perform superuser privileges, prompting for a password that is the current user's password, not the password for the super account. However there is a time limit, Ubuntu defaults to 15 minutes for one time.SU: Switch to a certain user mode, prompted to enter the password when the password is Switched account password, the use of "SU account name." If the system defaults to the root account when no account