Sudo Rights

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 ...

Trac is an open source software application platform that integrates wikis and problem-tracking management systems for software development project needs. TRAC establishes a Web application for software project management in a simple way to help http://www.aliyun.com/zixun/aggregation/7155.html "> Developers better write high quality software , the TRAC application strives not to affect the development process of the existing team. TRAC is developed using the Python language, because ...

Ubuntu version: 7.04--8.04 desktop environment: Gnome root, Root, Superuser, etc., refers to the machine to install the program/settings of the account, and the use of other users of the program (such as user), different from the administrator rights under Windows. Unix-like systems, such as http://www.aliyun.com/zixun/aggregation/13835.html ">ubuntu,bsd, ...

Cited from a process record, the target is a batch of older machines, P4 Celeron/256mb/80g/built-in graphics, should be selected Lubunu/xubuntu. 1, add routers and switches, under the administrative network to establish a subnet segment, so that students network and teacher network separation. 2, all computers into the Linux system, the students only user rights/not the lander has guest permissions, can not destroy the system. Prototype system basic installation using Xubuntu alternate i386 OEM ...

First we assume that you have installed the VSFTPD, and in the/HOME/VSFTPD directory to establish the following 3 subdirectories dbzh1 dbzh2 Dbzh3 below, we have to build 3 virtual users, password is the user name after the "" "DB1 DB2 the user db3 make the main directory DBZH1, in this directory only read-only permission user DB2 's home directory is DBZH2, in which only read-only permission User db3 home directory is ...

Preconditions: 1, ubuntu10.10 successful installation (personally think it does not need to spend too much time on the system installation, we are not installed to install the machine) 2, jdk installed successfully (jdk1.6.0_23for linux version, the installation process illustrated http : //freewxy.iteye.com/blog/882784) 3, download hhadoop0.21.0.tar.gz (http: // apache.etoak.com//hadoop ...

Preface &http://www.aliyun.com/zixun/aggregation/37954.html ">nbsp; There is a recent need to implement multiuser management in the Hadoop cluster, so a lot of information is being searched online. There is a way to feel or more feasible, link: http://cn.soulmachine.me/blog/20140206/The approximate way is: first ...

The purpose of this article: To quickly complete the system initialization configuration for users who have successfully installed the Xubuntu Linux 9.04 operating system. System requirements: Users are required to ensure that the operating system is connected to the Internet. 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 &http://www.aliyun.com/zixun/aggregation/37954.html ">nbsp; Terminal terminal ...

Little brother Contact Lamp not long time, a lot of things are their own 1.1 point groping, many of the problems hope to make friends with the following 2 programs must have security problems, I hope you criticize that the following program is for reference only. Scenario 1: Different IP addresses with different Web sites bind the 2nd IP to the NIC: the names of the two cards are eth0 and eth1 respectively. Where the eth0 is connected to the extranet. IP for 202.118.21HTTP://WWW.ALIYUN.COM/ZIXUN/AGGREGATION/3 ...

Http://www.aliyun.com/zixun/aggregation/13835.html ">ubuntu Project fully complies with the principles of open source software development, and encourages people to use, improve and disseminate open-source software." That means Ubuntu is and will always be free. However, this does not just mean 0 cost, the idea of free software is that people should be free to use software in all "socially useful" ways. "Free software" doesn't just mean you don't have to pay for it ...