CentOS6.5 Installing Lamp

Centos install LAMP

System: Centos 6.5
Apache 2.4 + PHP 7.2 + Mysql 5.7

Preparation work

1. centos check version

check centos version How to Check CentOS Version

cat /etc/redhat-release
cat /etc/ centos-release
cat /etc/os-release

1. Update yum source

[[emailprotected] tmp]$ sudo yum update< /pre> 
Using yum to install Apache
 
[[emailprotected] tmp]$ sudo yum install httpd
Install and check the version
[[email protected] tmp]$ httpd -v
Server version: Apache/2.2.15 (Unix)
Server built: Jun 19 2018 15:45:13
Enable apache automatic start
[[emailprotected] tmp]$ sudo chkconfig httpd on
 < h2 id="apahce-related commands">Apahce related commands
sudo service httpd start #start apache
sudo service httpd stop # disable apache
sudo service httpd restart # restart apache< br />sudo apachectl configtest #Test whether the syntax of the configuration file is correct
Open Apache’s common 80,443 port
Open A Pache's 80, 443 port
Execute command:
sudo /sbin/iptables -I INPUT -p tcp - dport 80 -j ACCEPT
sudo /sbin/iptables -I INPUT -p tcp --dport 443 -j ACCEPT
Save the command to enter the open port number statement before
sudo /etc/rc.d/init.d/iptables save
View the open port command
sudo service iptables status
sudo service iptables restart #restart iptables command
Configure Apache configuration file
Edit /etc/httpd/conf/httpd.conf, prohibit List the file directory and access the file in the format of .env (Laravel configuration file)
Execute the command:
sudo vim /etc/httpd/conf/ httpd.conf
Find  and change Options Indexes FollowSymLinks to Options FollowSymLinks, prohibit listing file directories

Add before  of the current group

 Order allow, deny
 Deny from all

No access to .env file
Finally httpd.conf< /code> all contents of the node are similar

## This should be changed to w hatever you set DocumentRoot to.# Options FollowSymLinks AllowOverride All Order allow,deny Allow from all
 Order allow,deny
 Deny from all< br />

[[emailprotected] tmp]$ apachectl configtest
httpd: apr_sockaddr_info_get() failed for centos
httpd: Could not reliably determine the server's fully qualified domain name, using 127.0.0.1 for ServerName
Syntax OK
If there is an error of apr_sockaddr_info_get(),

Confirm the value set in etc/sysconfig/network

$ cat /etc/sysconfig/network
NETWORKING=yes
HOSTNAME=centos

/etc/hosts append

127.0.0.1 localhost localhost.localdomain localhost4 localhost4.localdomain4 centos< br />::1 localhost localhost.localdomain localhost6 localhost6.localdomain6

/etc/httpd/conf/httpd.conf modify

#ServerName www.example. com:80
ServerName centos:80
install Mysql 5.7
Update and install the yum source of mysql

Download the source package from the official website

[[emailprotected] tmp]$ wget http://dev.mysql .com/get/mysql57-community-release-el6-7.noarch.rpm

rpm install mysql yum source

[[emailprotected] tmp]$ sudo rpm -Uvh mysql57-community-release-el6-7.noarch.rpm

Open the mysql-community.repo file to view the content about mysql , Make sure the value of enable of [mysql57-community] is 1

[[emailprotected] tmp]$ sudo vim /etc/yum.repos.d/mysql-community.repo
install Mysql
Execute the install mysql command
[[email Protected] tmp]$ sudo yum install mysql-community-server
When installing, there will be two confirmations, enter y, press  Enter to confirm
Start the service after completion
[[emailprotected] tmp]$ sudo service mysqld start
After the startup is complete, View the password generated temporarily for the root user
$ sudo grep "password" /var/log/mysqld.log< br />2018-08-08T02:59:58.687152Z 1 [Note] A temporary password is generated for [email protected]: 3fF4?tujHrfl
2018-08-08T03:00:04.204111Z 2 [Note] Access denied for user'UNKNOWN_MYSQL_USER'@'localhost' (using password: NO)
The first line [emailprotected]: 3fF4?tujHrfl This is the root password of the database p> 
Modify the initialization password
For the safety of Mysql, it is recommended to modify the initial password of root
Execute the command:
[ [email protected] tmp]$ sudo mysql_secure_installation

After executing the above command, you need to enter the password generated temporarily by root, which can be found in the previous step
 < li>After entering the current password of root, you need to enter the new root password twice
Change the password for root? ((Press y|Y for Yes, any other key for No) : Reply to y to confirm the modification of root user’s password
Do you wish to continue with the password provided? (Press y|Y for Yes, any other key for No) : Reply to y to continue the following steps
Remove anonymous users? (Press y|Y for Yes, any other key for No): Reply to y to remove anonymous users (in the production environment, you should delete it)
Dis allow root login remotely? (Press y|Y for Yes, any other key for No) : Reply to y to disable root remote login
 < li>Remove test database and access to it? (Press y|Y for Yes, any other key for No) : Reply to y to remove the test database
Reload privilege tables now? (Press y|Y for Yes, any other key for No) : Reply to y to reload privilege tables now

The mysql configuration file is by default in /etc/my.cnf
Enable Mysql Autostart
 [[email protected] tmp]$ sudo chkconfig mysqld on
Install PHP 7.2
If you have installed PHP before, you need to uninstall it.< /p> 
[[email protected] tmp]$ sudo yum remove php* php-common
 update and install yum of PHP Source
[[email protected] tmp]$ rpm -Uvh http://rpms.famillecollet.com/enterprise/remi-release-6.rpm
Modify yum source
Execute command:
#Install third-party source epel-release
[[emailprotected] tmp]$ sudo yum install epel-release 
[[email Protected] tmp]$ sudo vi /etc/yum.repo sd/remi.repo
Change the value of enabled under the [remi] node from 0 to  1. 
List the files in the /etc/yum.repos.d folder
[[emailprotected] tmp]$ ls -l /etc /yum.repos.d
CentOS-Base.repo CentOS-fasttrack.repo CentOS-Vault.repo epel-testing.repo mysql-community-source.repo remi-glpi92.repo remi-glpi94.repo remi-php70 .repo remi-php72.repo remi.repo
CentOS-Debuginfo.repo CentOS-Media.repo epel.repo mysql-community.repo remi-glpi91.repo remi-glpi93.repo remi-php54.repo remi-php71 .repo remi-php73.repo remi-safe.repo
Through the above command results, you can modify the corresponding version according to the PHP version you need to install remi-php.repo’s file

Because I need to install the 7.2 version, the edit is remi-php72.repo
 Execute the command:
sudo vim /etc/yum.repos.d/remi-php72.repo
Set the [remi-php72] node under the < The value of code>enabled is changed from 0 to 1. 
yum list php
List all installable software php lists. If it shows 7.x, there is no problem.
Start to install php
sudo yum install php php-cli php-curl php-json php-pdo php-mysql php-gd php-bcmath php-xml php-mbstring php-mcrypt php-redis php-crypto
During the installation process, there will be multiple confirmations, enter y and press Enter to confirm the installation
Installation is complete After that, you can view the php version through php -v or php -m to view the installed extensions
Configure PHP
By default, the configuration file is in /etc/php.ini
date.timezone = Asia/Shanghai
upload_max_filesize = 20M
post_max_size = 20M 
#The generation environment needs to be turned off to display error messages
display_errors = Off
#Do not display PHP information in the HTTP return header
expose_php = Off
Install Composer
Install according to Command-line installation
cd /tmp
php -r "copy('https://getcomposer.org/installer ','composer-setup.php');"
# If the installed versions are not the same, sha384 will verify the failure.
php -r "if (hash_file('sha384','composer-setup .php') === '48e3236262b34d30969dca3c37281b3b4bbe3221bda826ac6a9a62d6444cdb0dcd0615698a5cbe587c3 f0fe57a54d8f5') {echo'Installer verified';} else {echo'Installer corrupt'; unlink('composer-setup.php');} echo PHP_EOL;"

php composer-setup.php< br />
php -r "unlink('composer-setup.php');"
# Install composer globally
sudo mv composer.phar /usr/local/bin/composer
# View composer version
composer -V
Redis installation (optional)
Enter Redis, a different version is required , You can choose from the official website page

In the framed part of the above picture, you can see the link when you put the mouse on it, right-click on the download link, and select "Copy Link Address (E)" (the right-click menu option of Chrome browser)

Download the installation package

wget http://download.redis.io/releases/redis-4.0.14.tar.gz

Unzip and install 

tar -xzf redis-4.0.14.tar.gz
cd redis-4.0.14
sudo make
sudo make install

Redis has no other external dependencies, and the installation process is very simple. After compilation, you can find several executable programs in the src folder of the Redis source code directory. After installation, you can find the redis executable file you just installed in the /usr/local/bin directory. As shown below


 < li>Start redis

Directly execute the redis-server command to start it
With the startup script, in /etc/ Create a file of redis_port number under init.d/ folder, such as redis_6379

Create folder< /li> 
# Create a folder to store redis configuration
sudo mkdir -p /etc/redis
# Create a folder to store redis data, port number, default is 6379< br />sudo mkdir -p /var/redis/port number

Modify configuration file

# Enter to download redis-4.0.14.tar.gz File directory, copy the file configuration template to /etc/redis, and rename it to `6379.conf`
sudo cp redis-4.0.14/redis.conf /etc/redis/6379.conf

First copy the configuration file template (redis-4.0.14/redis.conf) to the /etc/redis directory, name it with the port number (such as "6379.conf"), and then check it according to the following table Part of the parameters are edited. 




Parameter
Value
Description




daemonize
yes
Make Redis run in daemon mode (by noChange to yes)


pidfile
/var/run/redis_port No. pid
Set the PID file location of Redis (the default is already /var/run/redis_6379.pid, no need to modify)


port
Port number
Set the port number that Redis listens to (the default is 6379, no need to modify)


dir
/var/redis/port number
Set the storage location of persistent files, the default is dir ./, modified to /var/redis/6379




Create< code>/etc/init.d/redis_6379 file and configure it

sudo vim /etc/init.d/redis_6379
In the vim editor Fill in the following content
#!/bin/bash
# /etc/init.d/redis_6379

### BEGIN INIT INFO
# Provides: redis_6379
# Required-Start: $remote_fs $syslog
# R equired-Stop: $remote_fs $syslog
# Default-Start: 2 3 4 5
# Default-Stop: 0 1 6
# Short-Description: redis server script
# Description: This service is used to manage redis-server start or stop
### END INIT INFO

REDISPORT=6379
EXEC=/usr/local/bin/redis- server
CLIEXEC=/usr/local/bin/redis-cli

PIDFILE=/var/run/redis_${REDISPORT}.pid
CONF="/etc/redis /${REDISPORT}.conf"

case "$1" in
 start)
 if [-f $PIDFILE ];
 then
 echo " $PIDFILE exists,redis-server is already running or crashed"
 else
 echo "Starting Redis Server"
 $EXEC $CONF
 fi
 ;;
 stop)
 echo "Stopping Redis Server"
 #killall redis server
 kill $(ps aux | grep -m 1 "${EXEC}" | awk'{ print $2 }') 
 ;;
 *)
 echo "Usage: service redis_6379 start|stop"
 exit 1
 ;;
esac
exit 0
After saving, you can start or stop redis-server with the following commands
 # Start redis server
sudo service redis_6379 start
# Stop redis server
sudo service redis_6379 stop

Enable redis-server startup
  
sudo chkconfig redis_6379 on
List the startup information of redis
chkconfig --list | grep "redis"
If it appears in the list 
redis_6379 0:off 1:off 2:on 3:on 4:on 5:on 6:off
It means that the boot setting is successful
Deploying Laravel to the optimization of the build environment
Install package
composer install --optimize-autoloader --no-dev
 < blockquote> 
Among them, --optimize-autoloader means to generate an optimized autoloader. Although the generation process may be slower, the result is improved runtime efficiency. --no-dev means that the extension package declared by require-dev in composer.json is not installed. We don't need these development dependencies in the production environment. 

Create a cache
php artisan optimize
php artisan api:cache
php artisan route:cache
php artisan view:clear 
php artisan config:cache
supervisor (optional)
Because Centos 6.5 is installed via Yum, the version of supervisor is  2.1
You can query the information of supervisor through yum info supervisor
If it has been installed through the yum command< code>supervisor 2.1, you can uninstall it through yum remove supervisor*. 
Install supervisor
# View python version
[[emailprotected] tmp]$ python -V
Python 2.6.6 
Specify the installation of supervisor 3.1.3 version, this version can use python2.6, it can be used directly after installation. You can pip install supervisor==3.1.3 or easy_install supervisor==3.1.3
I installed it through the following:
 < pre>easy_install supervisor==3.1.3 
Configuration

Generate configuration file

echo_supervisord_conf> /etc /supervisord.conf

Edit configuration file

sudo vim /etc/supervisord.conf
Find
;[include]
;files = relative/directory/*.ini
Change to
[include]
;files = relative/directory/* .ini
files = /etc/supervisor/conf.d/*.conf
After saving, create the included directory
sudo mkdir -p /etc/supervisor/ conf.d
The configuration files for future work can be placed in this directory

Start supervisord

Use  /etc/supervisord.conf configuration file to start the supervisord service
/usr/bin/supervisord -c /etc/supervisord.conf

Notes on commonly used commands

#View status
supervisorctl status
# Add or modify the configuration file, need to reload
supervisorctl reload 
# Restart all
supervisorctl restart all
Problems encountered
Apache error: default virtualhost overlap on port 443 or 80
Apache error: _default_ virtualhost overlap on port 443 or 80, modify the httpd.conf file and add it around line 1002
NameVirtualHost *:80
#If you need to use https, Need to add port 443
NameVirtualHost *:443
You don’t have permission to access /index.html on this server.
When DocumentRoot is confirmed, such as /home/testdomain/public_html the third level folder and index.html is 755 (drwxrwxr-x), the access is still You don't have permission to access /index.html on this server.
 < p>You can check the selinux status of Centos. After trying to close SELinux access, you should be able to access it
Check SELinux status
 < pre>[[email protected] tmp]$ getenforce
Enforcing #is enabled, if it returns Disabled, it is already disabled 
temporary shutdown
sudo setenforce 0
Permanently off
vi /etc/selinux/config
Set SELINUX=enforcing is changed to SELINUX=disabled
 After setting, it needs to be restarted to take effect
References

Upgrading PHP7, MySQL5.7 under CentOS6.5. The main reference for the text description of the installation part of the article.
Centos 6.5 firewall opens the designated port and sets up iptables quickly and easily
Centos view port occupancy And open the port command to open the content rules of the port, but the new rule must be placed in front of the line at the beginning of -A FORWARD, otherwise restarting iptables will not take effect
CentOS / httpd> Starting httpd: httpd: apr_sockaddr_info_get() failed for [hostname].localdomain centos httpd restart display httpd: apr_sockaddr_info_get() failed for solution reference
CentOS 7. X Close SELinux SELinux close reference
Redis installation under CentOS redis installation reference
Linux chkconfig instructions are very helpful to understand the use of chkconfig
(Clear cache when online ) Laravel 5.1 program performance optimization (configuration file)-Brief Book and Easy Deployment of Laravel Applications | “10. Manual Deployment-Necessary Optimization of Production Environment”
centos6.5 install supervisor Centos 6.5 install supervisor 3 The solution and the steps to install supervisor under centos are detailed in detail