Linux

  This is what I wrote when I read the document. It is basically part of the Oreilly document translated.   Original article: http://www.linuxdevcenter.com/pub/a/linux/2004/11/04/advanced_kickstart.html   Pre-And Postinstall scripts   Kickstart

  Synchronize data today. To prepare for data synchronization, you must first create an automatic synchronization job. After entering the system, no crontab is found. Create one as follows:       1. log on to the root user.   2. Enter crontab-

  In linux, each file and directory has access permission to determine who can access and operate files and directories. File or directory access permissions are divided into read-only, write-only and executable.   When a file is created, the file

  A linux jsp server is built very easily tonight. The main content is to install jdk, then install tomcat, and then install mysql. Simply record the process. The difference is that the entire installation and configuration process does not need to

  Fc16 doesn't know how to break it. It's so fragile. Try centos6.   There is an 8 gb usb flash drive on hand, so we are going to use it to install it, so as not to burn the disk.   Because the download is amd64-bin-dvd, more than 4G, some of the

1. Create the logins.txt file of the virtual user logging database. The/etc/vsftpd/login.txt file contains the following content: Set the username for odd lines in the password library file, and set the password for even lines 2. Generate the

After linux is loaded into memory by bootloader, the linux kernel code initially executed by the cpu is/header. start_of_setup function in the S file. After some preparation, this function will jump to the main file in the boot directory. c main

Today, we use SSH to remotely deploy the project. After the project is deployed, we turn off the terminal and open the webpage to find that there is no service. So we log on to the terminal again and use ps-ef | grep bea to view it, no background

The apache module mod_rewrite provides a rewrite engine based on the regular expression analyzer to rewrite URL requests in real time. It supports a flexible and powerful URL operation mechanism for each complete rule with unlimited number of

I. Composition of linux applications Common executable program file,/usr/binServer program, administrative program file,/usr/sbinConfiguration file,/etcLog File,/var/logFor more information about the application, see/usr/share/doc.Man manual of the

Ubuntu has switched to Unity, but I am not used to Unity. On the contrary, I like Gnome3 very much. In fact, on Ubuntu, Unity and Gnome3 can coexist completely. However, since Unity is not used and it still needs to be updated, simply delete it.

Everyone knows about processes. But do you know how linux manages processes? Each process has a process descriptor, specifically the information stored in the task_struct struct, in linux/sched. in the H file, Let's first look at the definition of

Www.2cto.com: can be combined with this study: http://www.bkjia.com/ OS /201108/101237.html(I) What is ulimit? Ulimit is a built-in shell command that can be used to control shell execution program resources. (Ii) What is the default value of

After the SVN server is started, the SVN repository is created. This SVN repository is generally run on the server and runs on linux. In my blog, the server is the local machine (127.0.0.1), and the client is also the local machine. The following is

Tr is short for translate. With this word, you can probably guess what it is! Yes, it can replace another string with one character string, or it can completely remove some characters. You can also use it to remove duplicate characters. Tr is used

Due to Nginx's outstanding performance, more and more web servers use Nginx. Although nginx is great, what if it crashes? We 'd better write a script for monitoring. If nginx fails, the system restarts automatically. Of course, before giving the

1. Task-related commandsSp function, [arg1],..., [arg9]-Start the task. A maximum of nine parameters are allowed. The default priority is 100 and the stack is 20000 bytes. Period n, function, [arg1],..., [arg8]-Create a task that calls the function

Common shutdown and restart commands in Linux include shutdown, halt, reboot, and init, which can be used for shutdown and restart. However, the internal working process of each command is different, next we will introduce them one by one. 1.

The environment is nginx + php. The error is as follows: common functions and syntaxes of php can be used normally. However, when $ _ GET is used, nginx never receives the get parameter. The following test code:  $ Id = $ _ GET ['id']; Echo $ id; ?> 

Automatic Installation of CentOS Based on Business Requirements In a few days, 29 servers will be mounted in the data center, and the system needs to be installed. There are too many machines and you want to install them automatically. Because there