Linux

The Linux shell script has been divided into several parts, and the content of the control process is now finished. This is the last part about here document. The example here is a little complicated, we will analyze this complex Linux shell script.

One of China's most short-of-water regions is North China, while Shijiazhuang is the most short-of-water area in north China. "The comment from the Director of Shijiazhuang Water Conservation Office gave reporters a strong feeling of water shortage

OpenSSH is a free open-source implementation of the SSHSecure SHell protocol. It uses secure and encrypted network connection tools instead of telnet, ftp, rlogin, rsh, and rcp tools. OpenSSH supports SSH protocol versions 1.3, 1.5, and 2. Since

The guy, commonly known as "script kid", is a type of bad hacker, because many of them and most people are so unskillful. It can be said that if you install all the correct patches, have a tested firewall, and activate an Advanced Intrusion

This article provides a comprehensive and detailed description of how to reinforce apache + php + mysql in Linux. By carefully reading this article, you can quickly master all aspects of apache, php, and mysql security configuration, there is also

Postfix is the MTA mail transmission agent developed by Wietse Venema under the ibm gpl protocol. There should be a very tedious process in the Process of RHEL 4, so for the problem of configuring Postfix in RHEL 4, the detailed analysis process is

FileZillaIt is a fast and reliable FTP client and server-side open source code program with a variety of features and intuitive interfaces. FileZilla Server is a software in the FileZilla project. Run FileZilla Server Interface.exe. The interface

FileZillaIt is a fast and reliable FTP client and server-side open source code program with a variety of features and intuitive interfaces. Q: I heard that FileZilla cannot be resumed. Is it true? A: It was a long time ago. The new version can be

Running commands cron, crontab, at, and & in the Linux background run when the account is logged on. If you are not an administrator, you may want to exit the account, but if the process fails to run when it exits, this Linux background command will

The main purpose of the basic concept of Linux is to help beginners have a comprehensive understanding of the Linux system. Here we will start with the concept of terminal, hoping to help beginners. Terminal: we will introduce the classification of

We all say that the Linux system is highly secure, but it does not mean that it is impeccable. Linux password cracking is a special method to achieve this goal. Now we have solved the Redhat Linux problem. We have not done any experiments on other

In the previous article, we talked about how to maintain the first-aid disk group in Linux emergency response, how to deal with the file system being damaged, and how to recover lost files, there are also methods to deal with function library damage,

The Linux su command is also frequently used. When to use this command and how to use this Linux su command are summarized here, I hope it will be helpful to everyone. First, let's look at su-run a shell with substitute userand group IDs on the man

The Make command is a very important compilation command in both Linux and Unix environments. Previously, we introduced the relevant knowledge in analyzing the differences between the linux make command and Makefile. Here we will explain in detail

As we discussed earlier, the performance of any system is baseline-based, and the performance of CPU monitoring is the above three points. The running queue, CPU usage, and context switching are supported. The following are common performance

NFS is a frequently used service for sharing document directories between linux systems. In fact, nfs configuration is very simple. I also use simple square characters to record the configuration points of NFS. 1) server configuration

Many system administrators do not know how to compile the Linux kernel. In fact, just like the usual Linux system management, the Linux kernel compilation skills can also be mastered. In this article, we will introduce nine Linux kernel compilation

The Linux/UNIX System in command line mode is always confusing to cainiao. We have published a set of Linux Command lines, but it does not seem perfect. Today, we are bringing you a list of command lines that collect Linux/UNIX systems from various

Every system administrator needs to use shell scripts to automatically execute a lot of daily work from time to time. In fact, many of these little helpers come from the command line and sometimes need to be input by users. You can use a mature

InLinuxThere is a system software package in the operating system. Its function is similar to "Add/delete programs" in Windows, but its function is much stronger than "Add/delete programs, it is the Red Hat Package ManagerRPM). I have prepared a