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Please indicate the source when reprint: http://blog.csdn.net/absurd 　 ALSA is not a new thing that has appeared recently. It has been developing for many years, 2.6. ALSA provides not only a few sound card drivers, but a complete set of solutions from drivers to upper-layer applications. It took me some time to read ALSA-related materials and code. This article records some notes taken during the study. According to the Alsa official website, it has the following features: 1. effectively suppor

; = 'A' h {Return h-'A' + 10; }Else {Cerr Return-1; }}// Get Ip address and port number from string XXXXXXXX: XXXXString GetIpAddress (char * str){Int a, B, c, d, e;A = HexToInt (str [0]) * 16 + HexToInt (str [1]);B = HexToInt (str [2]) * 16 + HexToInt (str [3]);C = HexToInt (str [4]) * 16 + HexToInt (str [5]);D = HexToInt (str [6]) * 16 + HexToInt (str [7]);E = HexToInt (str [9]) * 16*16*16 +HexToInt (str [10]) * 16*16 +HexToInt (str [11]) x 16 +HexToInt (str [12]);// Change i

One: the preparatory work1. Check if the firewall and SELinux are off, and if they do not close, it will seriously affect the experiment. Firewall off: iptables-f temporary cleanupReliable shutdown: Systemctl stop FirewalldClose Selinux:setenforce 0Permanently closed: Modify configuration file Vim/etc/sysconfig/selinuxSelinux=disabled2. Xiaomi Business website Source package-zipTwo. Install the required packages1. Yum Installation nginx2 . Yum mode installs mariadb ,mariadb-server,php-mysql ,p

files, application errors, or the interaction between these issues? As shown in Figure 1, sound libraries and applications can deal directly with sound drivers or rely on other libraries. Some applications and libraries offer a variety of options: they can be used either directly from the driver or through other libraries. Although Figure 1 is not quite complete (and there are dozens of small voice support libraries), many of the most commonly used tools and libraries are already covered, incl

in the same directory to extract the two files, will generate a database directory. Here, using the graphical installation method, you need to configure the Xserver,windows client configuration locally to refer to this link: http://tryingstuff.blog.51cto.com/4603492/1958772To switch to an Oracle user, add an environment variable:Export Oracle_base=/data/app/oracleConfigure x:Export display=192.168.20.171:0.0Xhost +Access control disabled, clients can connect from any hostExecute the following c

to Windows Server Environment preparation a single Windows Server server and join to the old domain, install the DFS role and confirm that the replication group was checked, as a new file server, on the old file server ( Windows Server 2003 Install the Distributed File System component and confirm that the File Replication group service is checked. legacy File server operating system version requirements Windows Server 2003 R2 SP2 a single Windows Server R2 Server as th

Tag: El expression gets data from a specified field the properties of the Ask Bean gets the array and the map and the elements in the list El operator in addition to the El built-in objects associated with four domain property spaces1. El Expression:-El,expression Language, Expression language, is an easy way to get data in a JSP page. The EL expression is a concept introduced from the JSP2.0 version.-The basic syntax of the EL expression is simple: any static part of the JSP page can get the va

1. Using OGR2OGR ToolsWebsite address http://www.gdal.org/ogr2ogr.html, download the required version, considering the author will often use later, I unzipped it to the folder "D:\App\Gdal\ Release-1500-gdal-2-2-1-mapserver-7-0-6 "under.For ease of use, set the path in path.Open command Line window, Test ogr2ogr command failed, display650) this.width=650; "Src=" Https://s1.51cto.com/oss/201710/27/69e042b353a8fdcda282dcf68601fdb4.png-wh_500x0-wm_3 -wmp

First, the implementation of master-slave server high-availability technology.Approximate network topology diagram:650) this.width=650; "src=" Https://s4.51cto.com/oss/201711/07/e3819115371e778e4aae13b66c4fa310.png "title=" 1.png " alt= "E3819115371e778e4aae13b66c4fa310.png"/>Prerequisite Preparation Conditions:Prepare four machines, one for keepalived master, one for keepalived backup, one for Rs1, one for Rs2, and both to shut down firewalls and sel

Tags: Ada size round ref grab package for open Ade AltGNS3 ( 2.0.0b4 version ) (For CCNA and the CCNP ) : Https://www.gns3.com/software includes GNS3.exe and GSN3 VMsNote download is required to download 2 a program: 1 is the installation program; 2 is based on VMware of the GNS3 VMSFirst step: After installation, remember to install GNS3-VM (for example), and then start in VMware Workstation650) this.width=650; "src=" Http://s3.51cto.com/oss/2017

Three machines are required for this experiment, and the environment for my experiments is as follows:centos7.3 Installing the Databasecentos6.8 Yum Install Rsyslog-mysqlcentos6.9 Implementing LapExperiment begins:centos7.3Install database : Yum install Mariadb-server650) this.width=650; "src=" Https://s5.51cto.com/oss/201710/28/9c697069a6a1ee366f8964b5424a3848.png "title=" 1.png " Style= "width:400px;height:61px", "hspace=" 0 "height=" "" Width= ""

file in the user's home directory. However, it is important to note that commands that run in the current shell are saved to the. bash_history file only if the user exits the current shell normally.[Email protected] ~]# history650) this.width=650; "Src=" Https://s2.51cto.com/oss/201711/15/0eebd83bb2c9d66074be16b227ee1daf.png-wh_500x0-wm_3 -wmp_4-s_941361731.png "title=" 1.png "alt=" 0eebd83bb2c9d66074be16b227ee1daf.png-wh_ "/>Echo $HISTSIZE See how m

# PVS//view VG Group Info # vgextend VGDATA/DEV/SDC1//Join VG Group, Vgdata to join VG group name,/DEV/SDC1 new PVIn the diagram you can see that the first PVS in the disk has only one PV, added, the second PVS will have a more PV.650) this.width=650; "Src=" Https://s4.51cto.com/oss/201711/11/3b62ddb109d68dd5a4e25525941958e1.jpg-wh_500x0-wm_3 -wmp_4-s_3786925783.jpg "title=" lvm_20.jpg "alt=" 3b62ddb109d68dd5a4e25525941958e1.jpg-wh_ "/># Vgdisplay//T

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a good alternative. Full backup:Full +binlog (Summary):Backup: Innobackupex--user--password=--host=/path/to/backup_dirPreparation: Innobackupex--apply-log/path/to/backup_dirRecovery: Innobackupex--copy-backNote:--copy-back needs to be done locally on the mysqld host, mysqld service cannot start;Innodb_log_file_size may have to be re-set;Step 1, when using the MySQL database, it is best to turn on the Binlog, that is, the binary log function, you can use the binary time node to restore files, so

Linux basic commands for file and directory managementls commandFunction: Displays the contents of the target list or directorySyntax: ls[option [directory or file]-A: Displays all subdirectories and files in the specified directory, including hidden files-L: Show file details-D: Show directoryExample:ls-dl650) this.width=650; "src=" Https://s1.51cto.com/oss/201711/19/536c4bf40f6118747bc52159515e7a03.png "style=" float: none; "title=" Image 1.png "alt

//////// // Zhangshulin-Hui Jia Studio // Module name:woods-bhtml.php Abstract: Generating a static HTML handler end version:2.0 Copyright 1001-1006, All rights reserved for Hui Jia Studio The software for free software, allowing use, copy, Modify and distribute the software and files. Any Use of this software must place a copy of the The Above copyright notice. By the Software Huijia Studio Maintenance, if you have a queries please con

Studio The software for free software, allowing use, copy, Modify and distribute the software and files. Any Use of this software must place a copy of the The Above copyright notice. By the Software Huijia Studio Maintenance, if you have a queries please contact us. Thank. // This software is free software and allows the use, copying, modification and distribution of the software and its documentation. All copies of the above copyright notice must appear in any place where this software is use

1. View the user branch level:runlevel (total six: 0-6,0 shutdown, 1 single user, 2 multi-user (without Network File system NFS), 3 multi-user (full-featured), 4 reserved, 5 interface (desktop), 6 restart)Default mode modification in:Vim/etc/inittab can see the relevant instructions and modifications.Id:3:initdefault:Init (0-6) can , for the shutdown Restart interface, interchange, etc.;2. Single-User mode entryAfter the boot, will be in the system, stop the system for three seconds, and then, w

First, installation LAMP Environment:# yum-y Install httpd mariadb-server php-mysql phpPackage version:httpd:2.4.6mariadb-server:5.5.56 php-mysql( The driver to use when php connects to MySQL ): 5.4.16php:5.4.16Note:CentOS 7.4 is no longer available Mysql-server the packagehttpd configuration file:1. Main configuration file:/etc/httpd/conf/httpd.conf2. Auxiliary configuration file:/etc/httpd/conf.d/*.conf3. Module configuration file:/etc/httpd/conf.modules.d/*.confMARIADB configuration file:/et