Linux builds a centralized log server through Rsyslog

(a) Rsyslog profileRyslog is a fast-track process for collecting system logs, providing high performance, security features, and modular design. Rsyslog is an upgraded version of Syslog that converts multiple source input and output conversions to

A detailed description of the TAR compression decompression command under linux command Linux

TAR-C: Build Compressed Archives-x: Unzip-T: View Content-r: Append files to the end of the compressed archive-u: Update the files in the original package this five is a separate command, the compression decompression will use one, can be used with

Linux configuration 163 mailbox Send mail

Simply send mail with 163 mailboxes, log the configuration steps below, and just record the key steps. ``Request 163 mailbox, after the client authorization code is opened, the client can use this authorization code to send mail. There is no need

Linux performance monitoring: Disk IO Chapter

Disks are usually the slowest subsystem of the computer and are the most prone to performance bottlenecks because the disk is farthest from the CPU and the CPU accesses the disk to involve mechanical operations such as rotating shafts, track-seeking,

Linux Basic Instructions

Root Administrator Gold 3 rm-rf/*Administrator Administrator US President1. System Information CPU model hard disk how much memory how big kernel information[email protected] ~]#"Who am I @ host name current directory" #高级管理员身份 $ normal UserCAT/PROC/

Introduction to Linux FTP

FTP mode of operation with active and passive two typesAnonymous user and System User Configuration1. Installation[[email protected] pam.d]# yum install vsftpd[[email protected] pam.d]# rpm -qc

Linux (i)

User Directoryis located /home/user , referred to as the user working directory or home directory, the means:/home/userLinuxMain Catalogue Quick Check table /: root directory, only directory under the general root directory, under Linux there is

Virtual machine Linux Template machine configuration

1, MinalPackage groups: Base,compatibility libararies,debugging tools,development ToolsPackage: Tree nmap syssate lrzsz Doc2unix telnet2, IP address, gateway, user name and password, host name3. Yum Source, Epel source4. Close SELinux and Iptables5.

Linux File management Tools

Linux File management tools: CP, MV, RM1, Cp:copySource file: Destination fileSingle source copy: CP [OPTIONS] ... [-T] SOURCE DESTIf the dest (target) does not exist, the data stream is created and copied to the target file;Eg: Copy the etc/passwd

Common basic commands for Linux (split)

Split commandRole: Cutting FilesFormat:Split [option] [input] [prefix]-l Specifies the maximum number of rows for a split file[Email protected]:~/linux/Split$Cat-N ghostwu.txt1What is Memcached?2Free &Open Source,3high-Performance,4Distributed

A summary of the first phase of Linux learning

1. The Dev directory roleDEV is the acronym for Devices. Here the main storage device, CD-ROM, hard disk (under Linux, all files).2. tmp directory PermissionsThe permissions for the/tmp directory are 1777, the last one for other users is t, the

Basic Linux Operations

ObjectiveThis article mainly summarizes the basic operation of Linux and some simple concepts ~ If the unfamiliar classmate can play the next Linux (or to buy a server to play "student version is not very expensive"), for developers, can use Linux

Linux Common commands

SU User name Switch userShutdown–r now restartShutdown–h now shutdownInit 0 shutdownMV old filename rename new file nameMV FileName Directory Move fileTouch File name creation fileMkDir Folder name Create FolderRm–r Folder name Delete folderRm–f

Bind domain name server for linux service configuration

1. Install bindThis software is to provide the software to build a DNS server. Here is not the description of what is the DNS and so on inside the concept of the class of things, because there is a lot of information on the network, so back and

Build a KVM Environment--07 install KVM graphical Interface management tool on Linux with GUI

Empty the Yum source cache and view the Yun source[Email protected] ~]#YumClean allloaded plugins:fastestmirror, langpackscleaning repos:vcdcleaning up everythingcleaning up list of fastest Mirrors[[email protected]~]#Yumrepolist Loaded

cve-2016-5195 Dirtycow:linux kernel power-up vulnerability

cve-2016-5195 Dirtycow:linux kernel power-up vulnerabilityThe following are the source code found on GitHub, and then the experiment was successful on ubuntu-12.04.5-desktop-i386.Run the following identify vulnerability first:/*######################

Linux System Time Acquisition method

Linux Operating System Computing time:Main function: Time localtime gmtime asctime ctime mktimeDifftime strftime Gmstrftime1.time () functionPrototype: time_t time (time_t * timer)Function: Returns a time_t type of data representing the number of

Example of sharing Samba and NFS in Linux

All the servers in this area are CentOS 6.9,samba Client and NFS client are 7.2You need to install the package to complete the following operations: Yum install httpd mariadb-server (CentOS6.9 is mysql-server) nfs-utils samba php php-fpm php-mysql

Basic Linux Operations

Basic Linux Operations prefaceOnly a bald head can become stronger.This semester opened the course of Linux, teaching teachers are more responsible for one. In general, it is more systematic to learn a

Linux Common commands

First, Touch commandAtime: Modified time for file permissions or properties touch-a to modifyMtime: Modification time of file content touch-c to modifytouch-d simultaneous modification of these two timesSecond, mkdir create a blank directoryThe main

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