What Is Sudo

If a computer needs to be managed by several people at the same time, it's best not to use the root account. Because if everyone uses the same permissions, it's hard to determine who is and where and what. sudo commands are used to solve this problem. The sudo command allows users defined in the/etc/sudoers configuration file to have temporary permissions to run commands that they cannot run under normal file access permissions. These commands can be either root or other users defined in the/etc/sudoers configuration file ...

In Linux (and normal Unix), the name of the superuser is called Root. Windows corresponding to the root account is the Administrator. Super users can do anything, so the superuser becomes dangerous in their daily work. You can enter a wrong command to destroy the entire system. Theoretically, the user you run should have just the right to the task at hand. In some cases, it requires root, but most of the events are normal users. Ubunt ...

Sudo quicklaunch is an Android system enhancement software from sudo make Me app, which replaces the Google search gesture in Jelly bean system and provides a quick access list for your software. Sudo QuickLaunch can replace the Google search feature with the home key on the Jelly Bean system as a quick access list for open software, and for those who still want to use goog ...

Function Description: Executes instructions in other capacities. Syntax: sudo&http://www.aliyun.com/zixun/aggregation/37954.html >nbsp; [-BHHPV] [-s <shell>] [-u < user] [directive] or sudo [-KLV] Supplemental Note: sudo allows users to use the other body ...

ubuntu16.04server install dockerCE. Docker is an application that makes it simple and easy to run applications in containers, just like virtual machines, which are only more portable, more resource-friendly, and more dependent on the host operating system. To learn more about the different components of a Docker container, see Docker Ecosystem: An Introduction to Common Components. There are two ways to install Docker on Ubuntu 16.04. One way is to install it on an existing operating system installation. Another way is to use one ...

Not long ago I provided 12 suggestions to adjust Ubuntu. However, it has been a while ago, and now we have made another 10 suggestions that will make your Ubuntu your home away from home. These 10 suggestions are easy to implement, so let's get started! 1. Install TLP We touched on TLP not long ago, a software that optimizes power settings and allows you to enjoy longer battery life. Before we go into the TLP in-depth, and we also mentioned in the list of this software is not bad. want...

Audio, video playback sudo apt install kubuntu-restricted-extras system Setup-> multimedia-> http://www.aliyun.com/zixun/aggregation/ 33972.html ">pulseaudio to the top (do not do this, easily lead to sound card exclusive only one program can be audible or a variety of inexplicable amarok problems). O ...

In Linux (and normal Unix), the name of the superuser is called Root. Windows corresponding to the root account is the Administrator. Super users can do anything, so the superuser becomes dangerous in their daily work. You can enter a wrong command to destroy the entire system. Theoretically, the user you run should have just the right to the task at hand. In some cases, it requires root, but most of the events are normal users. Ubunt ...

UFW is a host-side iptables firewall Configuration tool, relatively easy to get started. General http://www.aliyun.com/zixun/aggregation/8284.html "> Desktop applications using UFW has been able to meet the requirements. Installation method sudo apt install UFW Of course, this is a graphical interface (relatively simple), in the new search GUFW to try ... Use Method 1 to enable ...

In addition, Apache open url_rewrite Expansion, PHP open curl,soap,imagick,mb_string,mysql,mysqli expansion and so on. First step, install http://www.aliyun.com/zixun/aggregation/14417.html ">apache2 download httpd-2.0.59.tar.gz, execute sudo tar xzvf httpd-2 ....

Command Action Apt-cache Search package searching Package Apt-cache Show package get information about the package, such as description, size, version, sudo apt install package installation package sudo apt Install package--Reinstall Reinstall package sudo apt-get-f install forced installation? # "-...

First, the hardware environment Hadoop build system environment: A Linux ubuntu-13.04-desktop-i386 system, both do namenode, and do datanode. (Ubuntu system built on the hardware virtual machine) Hadoop installation target version: Hadoop1.2.1 JDK installation version: jdk-7u40-linux-i586 Pig installation version: pig-0.11.1 Hardware virtual machine Erection Environment: IBM Tower ...

See similar: W:GPG Signature validation error: Http://ppa.launchpad.net karmic 920.html ">release: The following signatures cannot be validated because there is no public key: No_pubkey 27F5B2C1B3EAC8D9 Solution: Download key: GPG--keyserver subkeys.pgp.net--recv ******** Import key: GPG--expor ...

Copy 3 font files (SIMSUN.TTC Tahoma.ttf Tahomabd.ttf) to/usr/share/fonts/zh_cn/truetype directory, command: sudo mkdir-p/usr/share/fonts/zh _cn/truetype/sudo Cp/media/hda1/windows/fonts/simsun.ttc/usr/share/fonts/zh_c ...

Intermediary trading http://www.aliyun.com/zixun/aggregation/6858.html ">seo diagnose Taobao guest cloud host technology Hall at present domestic relatively excellent cloud host supplier has Sheng and Aliyun, compared with the grand cloud use more flexible , really on-demand use, and often have activities, so that users get more benefits, Wang Guangwei Blog station on the use of Grand Ubuntu Cloud host system. Many users at the beginning of the unskilled configuration ubun ...

1. First use the fastest mirror source for you sudo apt updatesudo apt upgrade-dsudo apt until completed. 2. Change to the official source sudo apt updatesudo apt upgrade-dsudo apt until all is complete without prompting any errors before sudo ...

&http://www.aliyun.com/zixun/aggregation/37954.html ">nbsp; Together with the partners to build Hadoop cluster encountered various problems, sorted as follows: Preface in the winter vacation a period of time, began to investigate Hadoop2.2.0 build process, at that time suffer from no machine, just in 3 notebooks, Jane ...

This is a guide to installing the Kqemu kernel module. Kqemu is not open source software, it is provided to the http://www.aliyun.com/zixun/aggregation/29607.html "> free software qemu simulator for use. It enables QEMU to virtual x86 systems on x86 (PC) systems. Automatically install the script and use the instructions in this link (http://ubuntuforums.org/showthread ...).

The purpose of this article: To quickly complete the system initialization configuration for users who have successfully installed Kubuntu 10.10. System requirements: Internet connection. All packages mentioned in the Guide, software source updates require network support. Software involved: The guide will use the following tools to configure the System Konsole Terminal: The following is the terminal, click "K Menu/application/System/konsole" to open. Note: Programs that run at the terminal are closed with the terminal closed. This article applies: Kubuntu 10.10 (I386/amd ...

Select VirtualBox to establish Ubuntu server 904 as the base environment for the virtual machine. hadoop@hadoop:~$ sudo apt-get install g++ cmake libboost-dev liblog4cpp5-dev git-core cronolog Libgoogle-perftools-dev li Bevent-dev Zlib1g-dev LIBEXPAT1-...