installation management command

After mysql is installed, there will be a database named mysql. The table for storing users is user, and the user management of mysql database is centered on this table. Of course there are some tables, such: tables_priv, procs_priv, clumns_priv, and USER_PRIVILEGES in the information_schema database. If there is a mysql management tool phpmyadmin, we can manage users through a graphical interface, but wha

commandusage gpasswd option ParametersOptions:-A adds a user to the specified group-D Remove a user from a groupUsage:[[Email Protected]_8 ~]# gpasswd-d marry jackremoving user marry from group Jack//Remove marry from the Jack Group(6)Groupdel : Used to delete a group:Syntax:Groupdel ParametersParametersThe specified group to delete[[Email Protected]_8 ~] (7) Groupmod: Modify user group PropertiesUsage:groupmod ( option) (parameter)Options-gidentifier >: Set the group ID number to use ;-O: Re-u

Linux basic configuration and management 2 ---- Linux multi-command collaboration ---- pipelines and redirection Linux basic configuration and management 1 ---- Linux Network basic configuration http://www.bkjia.com/ OS /201309/240457.html 1 pipelines and redirection 1 in Linux most commands are very simple, there are few complex commands. Each

Linux System Management Common command--topTop Displays the system resources that the process occupies, as described in the following examples:650) this.width=650; "src=" Https://s2.51cto.com/wyfs02/M01/93/28/wKiom1kIfarCcDFSAABSrtVzUyA098.png "title=" 11. PNG "alt=" Wkiom1kifarccdfsaabsrtvzuya098.png "/>The top command is used to dynamically monitor the system r

Win2008 system has added a lot of fresh features, in order to be able to taste the first time "flavor", I believe many friends have asked the Win2008 system "settled" their own computer. However, in the new system environment for network connectivity or access, we may encounter some internet trouble; In order to get rid of the internet trouble, we need to Win2008 system for appropriate network management and configuration. In peacetime to the network

commands and Management class commands):Pstree,ps,pidof,pgrep,pkill,top,htop,glances,dstat,pmap,vmstat,bg,fg,jobs,kill,killall,nohup,nice,renice, ...Pstree:Pstree-display a tree of processesPs:Ps-report a snapshot of the current processes.PS [Options]1 UNIX options, which may grouped and must is preceded by a dash.2 BSD options, which may is grouped and must not being used with a dash.3 GNU long options, which is preceded by and dashes.Common options

Four-table five-chain: filternatmanglerawpreroutinginputoutputforwardpostrouting------------------------------Note: There are multiple chains in a table, and one or more rules can be in one chain.When a packet arrives at a chain, the system checks from the first rule to see if the rule is met, the rule processes the packet if it is satisfied, and if it does not, it continues to check the next rule, and finally the packet does not conform to any rule in the chain. The system processes the packet

MySQL installed after good, there will be a database named MySQL, the user's table is user,mysql database user management is around this table, of course, there are some tables, such as: Tables_priv,procs_priv,clumns_priv, INFORMATION_SCHEMA database inside the user_privileges and so on. If there is a MySQL management tool phpMyAdmin, we can use the graphical interface to manage users, but if there is no p

stateT: Stop stateZ: Zombie StateProcess Type classification: (processes with brackets are kernel processes)N: Low-priority process+: Processes in the foreground process groupL: Multithreaded ProcessS: The first process of session connection process 3 . Command parameter: PS No parameter shows foreground process only by defaultA: Displays all terminal-related processes (that is, processes that start with the user's login)U: Show the process is init

= +, effective uid= +lienhua34:demo$su# ChownRoot tsys#chmodu+s tsys#ls-L Tsys-rwsrwxr-x1Root Lienhua347358October the at:Panax Notoginsengtsys# exitexitlienhua34:demo$./tsys./printuidsreal UID= +, effective uid=0During the execution of the above, we set the owner of the Tsys file to Superuser root and set the user ID bit. Thus, when executing the Tsys file, the process has a valid user ID of 0 (that is, root). The child process that calls the system function to execute the Printuids file inher

7.9 "Linux learning is not difficult" file directory Management (9): MV command file and directory renaming, moving files and directory pathUse the MV command to change the names of files and directories and to move the paths of files and directories.Command syntax:MV [options] [Source Files | directory] [target file | directory]The meanings of the options in the

Tags: Linux cd7.4 "Linux learning is not difficult" file/directory Management (4): cd command Change working directory pathUse the CD command to change the user's working directory path. Working directory paths can use absolute or relative path names, absolute paths start with/(root), and then sequentially to the desired directory, relative paths start at the cur

Package Binary Package Advantages Package management system is simple, with only a few commands to implement package installation/upgrade/query and Uninstall Installation speed is much faster than the source package installation Binary Package Disadvantages

The administrator and the hacker must know the command Common Few net commands: (Establish an empty pipe connection with a remote host) net use \\IP address \ipc$ ""/use: "" (log in as an administrator to the remote host) net use \\IP address \ipc$ "password"/use: "Administrator" (Transfer files to remote host Winnt directory) copy native directory path \ Program \\IP address \admin$ (View remote host times) NET time \\IP address (Timed to start

Tags: res foreground chm size file in Pytho env stop login ManagementSupervisor is a process management tool written in Python that is used to start, restart, and close processes. The following article mainly to introduce the python implementation of the Process Management tool supervisor installation and use of relevant information, the need for friends can refe

saturation occurs when the this value was close to 100%.(b) Iotop, production see which process takes up more processesOn the specific server to see more clearly, disk read and write the most in the first row.II. FREE commandTo see how much memory is being usedFree-m free-hBuffCacheIII. PS Command View system processPs-auxA zombie process scenario with Nigix enabled and the child process may enter the zombie process when the parent process is acciden

the following command.[Email protected] ~]# Cobbler profile add--name=centos-6.5-x86_64-basic--distro=centos-6.5-x86_64--kickstart=/tmp/ Centos6.x86_64.cfg list all profile:[[email protected] tmp]# Cobbler profile listcentos-6.5-x86_64centos-6.5-x86_64- BasicV. TestingNew virtual machine, network boot650) this.width=650; "src=" http://s3.51cto.com/wyfs02/M00/4B/BA/wKiom1QxQp3ydCpmAACfB5u_unc393.jpg "style=" float: none; "title=" 1.png "alt=" Wkiom1qx

IntroducedIn this tutorial, we will discuss the network Management command-line tool in Centos/rhel 7, NetworkManager, also known as NMCLI. Users who use ifconfig should avoid using Ifconfig in CentOS 7.Let's configure some network settings with the Nmcli tool.To get address information for all interfaces in the system[[Email protected] ~]# IP addrshowSample Output :1:lo:Link/loopback 00:00:00:00:00:00 brd0

The RPM Package Manager is one of the oldest software packages in Linux, and is currently the most popular package manager, and many distributions use RPM as the default package management software.RPM Package Name format:samba-client-3.0.33-3.7.el5.i386.rpmSamba-client is the name of the package, and the 3.0.33 in 3.0.33-3.7 represents the major version number of the package, followed by 3.7 for the minor version number of the software release, and E

Tags: LVM tcpI. Introduction of LVMLVM (Logical Volume Manager) is a logical Volume manager for Linux kernels and is a mechanism for partition management of disks in Linux environments. Introduce several nouns about LVM first1, PV (physical volume) can be a disk, a partition. Consists of a PE (physical disk area), multiple PV can be composed of a VG (volume group).2, VG (volume Group) a group of multiple physical volumes, but the volume group can not