Category：Linux
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Time：2020-9-23
Yum install LNMP + WordPress Basic configuration Xserver1 decompresses and opens the virtual machine configuration IP Mount image # mkdir /opt/centos # mount CentOS-7-x86_64-DVD-1511.iso /opt/centos/ Configure local Yum source file # mv /etc/yum.repos.d/* /media/ # vi /etc/yum.repos.d/local.repo [centos]name=centosbaseurl=file:///opt/centosgpgcheck=0enabled=1[lnmp]name=lnmpbaseurl=file:///root/lnmpgpgcheck=0enabled=1 Turn off the firewall # setenforce 0 # systemctl stop firewalld Install and configure LNMP Installation services […]
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Time：2020-9-23
[[email protected] ~]# pecl install apc downloading APC-3.1.9.tgz … Starting to download APC-3.1.9.tgz (155,540 bytes) ……………………………done: 155,540 bytes 54 source files, building running: phpize Configuring for: PHP Api Version: 20041225 Zend Module Api No: 20060613 Zend Extension Api No: 220060519 /usr/bin/phpize: /tmp/pear/temp/APC/build/shtool: /bin/sh: bad interpreter: Permission denied Cannot find autoconf. Please check your autoconf installation and […]
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Time：2020-9-23
As a company’s Internet router, it needs to realize NAT address translation, DHCP, DNS cache, traffic control and application control. NAT address translation can be directly realized through iptables. DHCP service needs to install dhcpd, DNS cache function needs to use bind, traffic control can use TC, application control: for example, QQ blocking can be […]
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Time：2020-9-23
This article mainly introduces the bash script for the treatment of files with spaces. When processing audio files in batch, use the following script to find that the file name with space cannot be processed; #$1: traversed folder rootDir=$1 cd $rootDir allAudioFile=$(find $1 -name “*\.mp3”) for oneAudioFile in $allAudioFile do mv -f $oneAudioFile $rootDir done […]
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Time：2020-9-22
Introduce the following mainstream Linux operating systems: Premise: install the virtual machine of the corresponding system version (if there is a mine at home, you can use the physical machine) Centos 7: 1. Check the virtual machine system version and keep it consistent with the offline environment system version cat /etc/centos-release uname -a 2. Configure […]
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Time：2020-9-22
When you view the system’s resource parameters under Linux, you will sometimes forget its method. Now share the method record as follows 1. Open terminal or log in directly, as shown below 2. Click in and enter the following commandCPU versionIf my computer is i7, the display is as follows 3. Check the number of […]
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Time：2020-9-22
The SED tool of Linux is very powerful. It can easily add content in the front line or the next line of a keyword. Today, this function is used when batch modifying Tomcat logs. 1、 Add content on the line before or after a rowThe operation is as follows: Copy code The code is as […]
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Time：2020-9-22
${} [[email protected] ~]# file=/dir1/dir2/dir3/my.file.txt [[email protected] ~]# echo ${file#*/} dir1/dir2/dir3/my.file.txt Delete the first / and the string to its left [[email protected] ~]# echo ${file##*/} my.file.txt Delete the last / and the string to its left [[email protected] ~]# echo ${file#*.} file.txt Delete the first. And the string to its left [[email protected] ~]# echo ${file##*.} txt Delete the […]
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Time：2020-9-21
Error report of centostom7 starting alicloud Neither the JAVA_HOME nor the JRE_HOME environment variable is defined At least one of these environment variable is needed to run this program This indicates that Linux can’t find the storage path of your JDK and JRE in your window The first solution: Instruction: enter the file where Tomcat […]
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Time：2020-9-21
This article explains the effective user group and initial user group in Linux 1. The structure of / etc / group file 2. / etc / group file Section 1 is the account name, which matches the section 1 in the / etc / passwd file Section 2 is a group password, which generally does […]
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Time：2020-9-21
You usually write shell scripts with $1, 2 However, this method is not only easy to forget, but also difficult to understand and maintain. Linux commonly used commands can specify parameter name and parameter value, but how can we get parameter value by using parameter name and parameter value for our shell script? Instead of […]
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Time：2020-9-20
In the last blog, we learned about the architecture, installation, VIP configuration and high availability of keepalived. Please refer to https://www.cnblogs.com/qiuhom-1874/p/13634755.html Today, let’s talk about the email notification configuration of keepalived; A highly available service should be able to make the first time to fail over when the service fails, so as to ensure the […]
