Linux

End busy at the bottom of the sky, long time no technical blog, while a little idle, simple write a little deployment notesBecause the company used to oracle10.0.5, to the customer over the deployment also requires this old version, helpless,

I. On-load/etc/fstab and/etc/mtabThe previous mount method every time you enter the system will have to mount, if you want to automatically mount when the boot, we should go to the/etc/fstab inside to modify.Let's look at the contents of this file

On Linux, everything is file. Similarly, the system's real-time status information is also stored on the file system in the form of a file. In/proc/, the state information in the kernel is saved, and the information of the process is saved in

Concepts related to resources, users, and user groups:Resources: Computer computing power, memory space and so on can be collectively referred to as the resources of the computer.User: Used to identify whether there is permission to use computer

1. First upload the Nginx installation package to the/home directory in the virtual machine2. Create a combined user for easy Nginx operation without compromising Linux securityGroupadd-r NginxUseradd-r-G nginx-m nginx3. After entering the/home

One, Linux under the common compression instructions　　In the Linux environment, Most of the extensions for compressed files are: [*.tar,*.tar.gz,*.tgz,*.gz,*. Z,*.BZ2], Why do you have this extension? Doesn't it mean that the extension under Linux

In CentOS, for example, other systems should be the same or similar.Need to use two commands: Date and HwclockWhere the date command is provided by coreutils this package, the Hwclock command is provided by the Util-linux package. Look at these two

How does it novice learn Linux operations quickly? the old boy personally taught the experience of learning Linux! guys, hurry and poke at the address below!Http://edu.51cto.com/course/course_id-5012.htmlEven if the operation of the 10, seriously,

Fskey servername SCP command grep command Find command echo command Xargs command File command Cat command /dev/null Tar packaging gzip compression Example: Packaging and compression awk command

CP (copy) Format:CP SRC DESTThe CP command can only copy one file into another file, or copy multiple files to a directory.So when we use the command CP file1 file2 file3, Linux will first determine whether FILE3 is a directory or a document,If

1. checkout files to a local directorySVN CheckoutPath (path is a directory on the server)Example: SVN checkout Svn://192.168.1.1/pro/domainShorthand: SVN Co2 . Add a new file to the repositorySVNAddFileExample: SVN add test.php (add test.php)SVN

First, the Linux directory structure Do you want to know why some programs are located under/bin, or/sbin, or/usr/bin, or/usr/sbin directories? For example, the less command is located in the/usr/bin directory. Why not in/bin, or/sbin, or/usr/sbin

Introduction to basic commands: CD command to switch directories PWD command to view the current directory ls command View all files and directories in the current directory The PWD command displays the directory that is

First, the basic knowledge of the network1, hub (hub) work in the first layer (that is, the physical layer), it has no intelligent processing power, for it, the data is only a current, when a port of the current to the hub, it simply transmits the

cloned a virtual machine, but when you start the network card, error:Bringing up interface Eth0:device eth0 does not seem to be present, Delayin initialization650) this.width=650; "src="

Linux kernel officially supports new files since 2.6.28System EXT4. EXT4 is an improved version of EXT3 that modifies some of the important data structures in Ext3, not just like Ext3 to Ext2, but adds a logfunction only. The EXT4 offers better

Input Event Driver: (main file: drivers/input/evdev.c, Drivers/input/input.h) based on kernel 4.0First, the key function call order:1, Input_register_handler (&evdev_handler); Register Evdev_handler this input Event Drive Evdev.c2,

Overview of the two basic specificationsDTS (device tree syntax, another way of saying device tree source) is a plant-based file that is used in text format for readability and modification. The DTC (device tree compiler) is a small tool that is

Nginx protection against malicious domain name resolution Today is so bad. I found that port 80 of the server could not be accessed through the IP address is speechless. It was okay yesterday, and I have not modified the configuration. Other ports

Dd command: Test hard disk I/O performance I. dd replication and conversion 1. dd: convert and copy a file conversion and replication, bottom layer (Block) of the copy operation) DESCRIPTION: Copy a file, converting and formatting according to the