Linux

1.SSH1.1SSH IntroductionSSH (Secure Shell), developed by network Working group of the IETF, is a security protocol based on the application layer and transport layer.SSH is a protocol that provides security for Telnet sessions and other network

Nginx as a Web server an important function is the reverse proxy. Nginx Reverse proxy instructions do not need to add additional modules, the default comes with proxy_pass instructions, only need to modify the configuration file can be implemented

How to use common commands:1.echo (printf)Echo-display a line of text Common options:-N: Do not wrap,-e: use \ Guided escape sequence to take effect; \ n: newline \ t: Horizontal tab 2.CD Change the shell working dir Ectory. Switch working

Uniq commandFunction: Outputs or ignores duplicate rows in a fileFormat: uniq [option] [File|stdin][Email protected]:~/linux/Uniq$CatGhostwu.txt192.168.1.2192.168.1.8192.168.1.3192.168.1.3192.168.1.9192.168.1.8192.168.1.8192.168.1.0192.168.1.3[email

Red Hat Linux Common Operations Command (derived from the network summary in a piece1. How to use the command (three ways)Shutdown--helpShutdown--?Man shutdown (man is Manual Handbook, guide)2. Services ServiceHow do you know the name of the service?

Previously described how to build a git repository server on Windows, but the server with more than Linux, because cheap (the same VPS is generally cheaper than Windows Linux), no graphical interface, low-profile VPS can also run Linux, open source

之前又个客户说自己的linux机器有，活动链接数大，CPU高的特点。 客户初步处置：断网，下线，重启。 我给他们提了个处置步骤，结果就没下文了。。。。。The recommendations are as follows:(0) View History command, recently opened file.(1) Confirm the server daily application, application process name, file path, process open

Zabbix Monitoring Introduction c/S architecture, based on the development, Monitoring Center support Web Interface Configuration and management Single server node can support tens of thousands of clients Latest Version 3.4, Official document

 in the Linux Server The SSH2 extension is deployed in the environment to compile the SSH script commands in the PHP file , and is configured as follows, if it is run directly in a formal environment, It is recommended that you do a backup. 1.

First detect if there is SSH1. If you do not have the download installed, you can create the. ssh folder in your home directorymkdir ~/.ssh2. Generate keySSH-KEYGEN-T RSA3. Write the current public key to the Authorized_keysCat Id-rsa.pub >>

Static LibraryLet's talk about why we need a library.When there is a lot of code we will use in the program such as (scanf,printf, etc.) These functions we need to use in the program frequently, so we will compile the code as a library file, when we

PS,FG, BG, Jobs, &, CTRL + Z are all related to system tasks, although these commands are mostly not needed now, but they are also very useful.One. & is most often usedThis is used at the end of a command, you can put this command in the background

Sometimes, the online server uploads files or folders, does not do the secret key, do not know the user's relevant password, SCP and rsync can not be used.It is recommended that you use NC commands to communicate between Linux servers, provided that

Reference: https://www.cnblogs.com/xiaochaohuashengmi/archive/2011/10/05/2199534.htmlCreate and delete soft and hard links under LinuxIn a Linux system, the kernel allocates an Inode (index node) for each newly created file, each with a unique inode

Very powerful text manipulation tool, Sed,awk,grep This three command is the operation of the text fileThe UNIX system has several very special features:1. For the kernel, UNIX files are byte sequences. IO devices are also files.2. The meaning of

Date Displays the current time and date Cal displays the current month of the Calendar DF View the number of free memory on the disk in the available PWD print current working directory CD switch directory LS list Folder contents absolute path:

1 Considerations for Learning Linux Strictly case -sensitive (commands, files, options) All content in Linux is saved as a file , including hardware Hard disk file is/dev/sd[a-p] CD-ROM files are/dev/sr0 etc.

Let's review the previous section: User groups Add Groupadd User Group Modification Groupmod User group Delete Groupdel The job creates a group with ID 501 group1, then changes to Group2, and the ID becomes 502, and finally the

"Problem description"One of the most serious resource problems in using Spring cloud is the high memory footprint, and the fact that there is not a large amount of development testing, or even a problem with the service not being properly

As a server-level operating system, Linux takes full account of remote login issues, whether it is convenient to log on to Linux from Linux, Windows, or some other operating system. This article describes how to use Linux and Windows to log on to a