can do it in individual user's ". BASHRC "file, so that the system has a special automatic logoff time for that user.After you change this setting, you must log off the user and then log in to activate the feature.5. Remove the console access for ordinary usersYou should remove the console access from the normal user, such as shutdown, reboot, Halt, and so on.# rm-f/etc/security/console.apps/ is the name of the program you want to unregister.6. Canc
# actually the shutdown of the computer is the switch of the running level, the #init process monitors whether the runlevel changes. # If the runlevel changes, the INIT process will trigger the /etc/rc.d/rc script to run. #rc script function is: #1, if the current computer is running there, at the current run level # (correctrunlevel)/ The service that starts with K in the etc/rc.d/rc$runlevel.d/directory. is closed. #2, turn on the current runlevel (correctrunlevel)/etc/rc.d/rc$runlevel.d/direc
owner '. This provides good system confidentiality for project or other program developers.
Systems with relatively low resource consumption:Linux as long as a computer with a P-III or above level can be installed and used happily ?! Still don't need to go to P-4 or AMD K8 grade computer! However, if you want to set up a host system that serves more than a hundred hosts on a large scale), you need a better
of the embodiment of the combination, rather than independent software and hardware. In addition, Linux server hardware already contains a certain profit, and Linux free for the manufacturer is a cost-cutting condition. In addition, Linux manufacturers in mobile phones, PDA products (typical examples of
fully sufficient. when the/home partition already has the data, you should select the same partition format as before, and do not tick "format partition".▲ OK, ready to install. Look at my hard drive. 10 operating systems coexist, peaceful! Each operating system gives it 20G on the line. If your hard drive has 500G, installing 5
2-1 Linux operating system and common commands, 2-1 Linux
Edit it based on the beginner videos 2-1 and 2-2 of Marco's linux
1. GUI and CLI
GUI: Graphic User Interface
CLI: Command Line Interface
Note: In Windows, DLL: Dynamic Link Library is a Library file. In fact, there is
Improve Linux operating system performance 2011-01-05 13:48 Anonymousfont Size:T | T This article explains in detail how to tune Linux system performance from disk, file and file system, memory and compilation. The tuning method
For a detailed introduction to Linux, see: http://blog.csdn.net/hguisu/article/details/61225131, installation of Linux operating systemCurrently basically is based on the Windows operating system installed on the installation of Windows on the virtual machine installed on th
This is the first of a series of articles on how to develop Web programs for Linux using a variety of available interfaces. Like most unix-based operating systems, Linux supports the use of TCP/IP as a local network transport protocol. In this series, we assume that you are familiar with C programming on Linux and some
With the increasing number of viruses and hackers on the network, many users are seeking for the safest operating system. When talking about this topic, someone will tell you that the Linux operating system is the safest. In fact, this is just relative.News about
Sometimes it is necessary to notify others or do something on their own at some time. For those who read emails every day, sending emails is the safest. In Linux, it is easy to use the Linux at command with mail.
The Linux at command can run a program at a certain time, while mail can send a copy of the mail body stored in a text in the command line.
We have previously introduced ways to improve the speed of the system by optimizing the configuration of the desktop environment, but in other respects we can also configure it to improve the speed of the system.
First, improve the data transmission performance of hard disk and optical drive
We can use the command "Hdparm parameter device" (if it is a normal user, you need to precede "hdparm" with the path
Song Baohua talks about arm's embedded Linux porting experience 3: Operating System
In the Article C language embedded system programming practices written by the author, the main software architecture that Chen complained about is a single task without an operating
Q10 notebook needs to install Redhat Linux 8.0, but after booting through the optical drive, Setup is unable to access the disc. To solve this problem, the author has found the way to install Linux on the Q10 after consulting the data and groping. In the following discussion, if you do not make a special statement, you will take Q10 as an example of how to install Linu
Switch the operating system from windows to linux or windows linux
For developers, the windows system has some natural defects, such as: far-fetched command lines, File Name Length directory depth restrictions, encoding and line breaks. After several pitfalls, switch from w
.tree: External commandFunction: Display the contents of a directory using a tree-like structure listFormat: Tree [option] ... [Directory ...]Common options:-A: Shows those with "." or ".." The hidden file that starts with the default tree cannot be displayed when the-D: Show only directory names-L: Do not allow recursive querying of directory Symbolic links-F: Each file is to be displayed with an absolute path-X: Just stay on the current file system-
sessions the gdb target code on the test computer through the serial port and provides all the C source code-level debugging information;② Execute the remaining hardware and software initialization code with GDB until the Linux kernel begins to take over;③ Once the Linux kernel is started, the above serial port becomes the Linux Console port, which can be used f
Main contentLinux InstallationCommon commandsUse of the VI editorTelnetHost name SettingsSettings for IPSettings for the firewallUser and group account managementFile Rights ManagementRPM Package ManagementInstallation of softwareJdk,tomcat, EclipseChapter One: Introduction to LinuxLinux is a free and open-source operating system with many different versions of Linux
When it comes to Linux, the first thing people think about is that this is an open-source operating system developed by excellent hackers around the world, which is now very widely used in the server domain, and that Android, which is based on the Linux operating
It is particularly worth mentioning that the Linux operating system has many things worth learning. Here we mainly introduce the Linux operating system, including the Linux
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