Linux

Recently do smart home, need to know the smart home gateway (WiFi to ZigBee, hereinafter referred to as network off) IP (DNS dynamic allocation)The first thing to do is to traverse all the machines in the subnet, each trying to link its 5005 port,

Reference: http://fhqdddddd.blog.163.com/blog/static/18699154200910323316916/Note: How many versions are required, the general official Linux x86_64 package adapts to most newer Linux systemsBut GLIBC relies on the more important 5.18 only to 2.5 5.2

Yesterday received a task, 10 machines, need to partition and mount, each machine has 6 drive letters, if one of the manual operation, not high efficiency, I finished one, try to write a script, to achieve batch deployment! Here's how the script

1. FindSearch by name: Find/-name file_name  2, Zip compression1) I want to compress a file repartition.txt and a directory invader into Amateur.zip:# zip-r Amateur.zip repartition.txt Invader    2) I downloaded a aptly.zip file that I want to unzip:

1. Processes and Threads2. Development of mobile phone operating system3. Address space boundaries for processes4. Security fence at the process boundary: crash non-ductile5. Secure fencing of process boundaries: global data and service

In the Linux operating system, sometimes followed by the tutorial installed some software, after the successful installation, it is very happy to prepare to run the appropriate command of the software, but occasionally encounter "command not found ..

Load is an important indicator of the Linux machine, which intuitively reflects the current state of the machine. If the machine load is too high, then the operation of the machine will be difficult.Linux has a high load, mainly due to CPU use,

SVN version management tool.The SVN server operates in 2 ways: stand-alone servers and operate with Apache. Both ways have pros and cons, users can choose their own.SVN stores version data in 2 ways: BDB (a Transaction-safe table type) and FSFS (a

Configure DHCP server under Linux1. Install the DHCP Server Software, first put the CD in 650) this.width=650; "title=" Picture 1.png "alt=" wkiom1xe-b7rwtfnaad8syjptkq649.jpg "src=" http://s3.51cto.com/wyfs02/M02 /72/3f/wkiom1xe-b7rwtfnaad8syjptkq64

1. We will sometimes be very slow when we connect to the server using SSH protocol.Cause: Because we changed the hostname, SSH protocol by default will do reverse query, that is, IP on the domain name of the query, can not find out, wait until the

GzipCommand name: gzipCommand English Original: GUN ZipThe command is in the same way: Bin/gzipExecute Permissions: All UsersSyntax: gzip [ file ] function Description: Compress Filesfile format after compression: . GZGunzipCommand name:

reference:Compiling, installing, and configuring QT http://www.cnblogs.com/emouse/archive/2013/01/28/2880142.html Linux Download qtThis is 4.7.0 version qt-everywhere-opensource-src-4.7.0.tar.gz Copy and UnzipHere I installed VMware Linux

WriteCommand name: WriteThe command is in the same way: Usr/bin/writeExecute Permissions: All UsersSyntax: Write user name > function Description: send message to user to ctrl+d save End Example: Write DjhWallCommand name: WallCommand English

Description: Disk-to-File system learning Architecturesuch as:650) this.width=650; "src=" Http://s3.51cto.com/wyfs02/M00/72/2A/wKiom1Xd5n7TFgslAAHSDqgkAXc137.jpg "title=" Clipboard.png "alt=" Wkiom1xd5n7tfgslaahsdqgkaxc137.jpg "/>This is really a

Today to share with friends is the Linux system give root password for maintenance problem resolution, hope to help friends!The problem should be that the /usr/home/boot partition disk detects a problem .Give Root password for maintenance(or type

Summary of simple User management commandsOne, user-related commands1.useraddMan Document Description: Create a new user or update default new user information英文说明: Create a new user or update the default new user informationReusing

Because the computer is bad can only hear the sound! Wait for the video to be sent to fillUID 0-65535Normal Users: 1-60000System users: 1-499Login User: ResearcherTo add a user groupGroupadd-g 521-r AdmindAdd user group, genus Group, shell,

OneDevice Type:Block device: Random access, data exchange unit "block"Character (character): linear access, Data interchange unit for characterDevice file: FHS (LSB) file system level standard/dev/Device file associated device driverDevice

Description of partition typeHere I summarize a formula:Number of primary partitions + extended partitions =4 (/dev/sda1-4)Extended partitions can be subdivided into many logical partitions (5-over).Common commands:DF File System Usage-A All-H

/etc/passwd,/etc/group,/etc/shadow and/etc/gshadow Introduction: 1,/etc/passwd: This file is mainly to store user information, one line to record a user. [Email protected]_server ~]#