Linux

1, the use of emergency disk Group for maintenance The first Aid disk group (also known as the Boot/root Disk group) is an essential tool for system administrators. It allows you to start and run a complete Linux system independently. In fact, there

Step Two, install: Reboot, open your optical drive, put the disk inside, remember in the CMOS set into the CD-ROM drive boot yo, and then into the first screen (because Linux installation can not grasp the map, so I took a digital camera, picture

I am familiar with the Windows2000 network configuration, for Linux under the DNS can be said to be Greek. Now you want to learn how DNS is configured. After some trouble, finally found a simple method of configuration. Now I'll write out the

I use Windows from the touch of a computer, and I love and hate windows! These two years, also played Linux, feel the progress is very fast, but there is a gap with Windows, so installed with the use of the deleted! In any case, it's a pleasure to

One, quick jump command one Z If you want to go into a folder that is very deep in a directory every time, like the following: # Cd/root/py/auto/fabric Each time you have to enter a number of directory names is not very annoying, there

First, the preface The crontab command is common in UNIX and unix-based operating systems, and is used to set periodically executed instructions. This command reads the instruction from the standard input device and stores it in a user-named file

Objective In the Linux kernel, container_of functions are used very widely, such as Linux kernel lists list_head , work Queues work_struct . In the Linux kernel, the well-known macro container_of() , in fact, its syntax is very simple, but a few

Premise: 1. Do not configure on the virtual machine. Whether it is VM5 or VM6, I have tried many times, each is seemingly successful, but the machine ping do break the network test will find the truth; 2. Must use the same brand with the model

Graphical installation of the Tomcat server under Linux specific process, for your reference, the specific content as follows Upload Tomcat server: First, you need to download the tomcat-upload to the server. Install Tomcat Server

Objective After 8 RC versions, the Linux 4.9 version of the kernel on December 11, 2016 as scheduled to meet with you. According to Linux founder Linus Torvalds, the Linux Kernel 4.9 branch will be a major version update, with 8 research and

At some point, the contents of the file need to be emptied without deleting the file. Analogy some log files (log.txt); the commands under Linux are:true >log.txt Test results: Touch Log.txt → #新建文件log. txt VI log.txt → #编辑 file Whatever you

1). > filename 2).:> filename 3. echo "" > filename (file size truncated to 1 bytes) 4). echo > FileName 5). cat/dev/null > FileName 6). cp/dev/null filename Cat A.log >> b.log add content from a append to B Cat A.log > B.log writes the

1. Log deletion policy Automatically deletes archive logs and backup files 7 days ago. 2. Scheduling plan 0 0 * * * nohup sh/db2backup/script/auto_rm_logs.sh & 3. Log Deletion script auto_rm_logs.sh #!/bin/sh #-------------------------------

NetFilter provides an abstract, general-purpose framework that defines the implementation of a child function that is the packet filtering subsystem. The NetFilter framework consists of the following five parts: 1. Define a hook function for each

First, modify the PIP mirror source in a Windows environment (for example, python3.5) (1): In Windows File Manager, enter %appdata% (2): Will navigate to a new directory, under the directory new PIP folder, and then go to the PIP folder to

When installing Nginx under Linux, the/configure phase will require the installation path to be set through prefix. Therefore, you can install multiple nginx when you specify a different prefix in the./configure. It is worth noting that after

For people who often use Linux systems, it is easy to upload local files to the server or download files from the server to the local, the Rz/sz command is very convenient to help us achieve this function, but many Linux systems initially do not

Chkconfig command Commands under Linux are chkconfig used primarily to update (start or stop) and to query run-level information for system services. Remember chkconfig not to automatically disable or activate a service immediately, it simply

1. How to quickly install the game server: Publish catalog After all games have been added, a gamelist.ini is generated in the game publishing directory, which is to record all game information for this release directory. If you install other game

Nginx+tomcat is the current mainstream Java Web architecture, how to let nginx+tomcat work at the same time, can also say how to use Nginx to reverse proxy tomcat back-end equalization? The direct installation configuration is as follows: 1. JAVA