1. ZenTao RTE 

• Apache + PHP(7.0/7.1/7.2) + MySQL(5.5/5.6)/mariadb is recommended, Nginx is the second-best
• The modules of pdo, pdo_mysql, json, filter, openssl, mbstring, zlib, curl, gd, iconv are needed for ZenTao running, please make sure they are uploaded in the PHP environment.

2. Install httpd

Execute the following instructions to install and start the httpd.

dnf -y install httpd           #Install Apache
systemctl start httpd.service  #Start Apache
systemctl enable httpd.service #Enable Apache when booting

Other operation and maintenance commands of Apache.

systemctl status httpd.service #Check Apache 
systemctl stop httpd.service   #Close Apache
systemctl restart httpd.service #Restart Apache

After the installation is complete, check the Apache. If it is as shown in the screenshot below, the service has been started.

After the startup, you need to close the server firewall so that the browser can access the Apache service.

systemctl stop firewalld.service     # Close the firewall. 
systemctl disable firewalld.service  # Disable the firewall at booting
systemctl status firewalld.service   # Check the firewall status
systemctl start firewalld.service    # Start the firewall 

Turn off selinux to prevent subsequent operations on files under /var from being unable to grant read and write permissions to files in this path. Run the following commands.

setenforce 0 # Close selinux

Modify the selinux configuration file to make it take effect after booting.

vi /etc/selinux/config # Change it to disabled 
SELINUX=disabled

After closing the firewall, check the server host IP address by executing the ip addr command for browser access.

Then run the following command.

echo Centos8 http is ok  > /var/www/html/index.html

Visit http://serverip/index.html in your browser. If it shows the following screenshot, it means that the Apache configuration is successful.

Apache will be installed under: /etc/httpd/
Apache configuration file: /etc/httpd/conf/httpd.conf
The default access path for Apache website files: /var/www/html/

3. Install PHP 7.2

The default version in AppStream of RHEL 8 / CentOS 8 is PHP7.2, you can execute sudo dnf module list php to view.

Install php7.2 and the required components.

sudo dnf install php php-pdo php-gd php-mbstring php-mysqlnd php-ldap php-json php-xml php-zip

To test the integration of PHP and Apache services, execute the following commands on the command line.

echo '<?php phpinfo();?>'  >  /var/www/html/index.php

Restart the apache service, visit http://serverip/index.php in the browser, and the Apache configuration is successful if the page displays as follows.

4. Install Mariadb

Execute the following commands to install and start Mariadb.

dnf -y install mariadb mariadb-server 
systemctl start mariadb.service # start mariadb 
systemctl enable mariadb.service # enable mariadb at booting

Mariadb operation and maintenance commands.

systemctl status mariadb.service # check mariadb status
systemctl stop mariadb.service # stop mariadb

Database installation settings, reset the database root account password, you have to start the Mariadb service before executing this command.

mysql_secure_installation 
Enter current password for root (enter for none): 
Set root password? [Y/n] 
New password: 
Re-enter new password:  
Remove anonymous users? [Y/n] 
Disallow root login remotely? [Y/n] 
Remove test database and access to it? [Y/n] 
Reload privilege tables now? [Y/n] 

Log in to test, execute the following command and enter the password.

mysql -uroot -p

5. Install ZenTao

5.1 Download the latest version of the ZenTao software source package from the official website. Download HERE.

5.2 Use the lrzsz command to upload the ZenTao software to the /var/www/html directory of the server. You can also upload the ZenTao source package in your own way.

dnf -y install lrzsz # install rz uploaded program
cd /var/www/html # switch to Apache root
rz # upload ZenTao source code

5.3 Use the unzip command to unzip the ZenTao source code package.

dnf -y install unzip # Install unzip
unzip ZenTaoPMS.11.5.stable.zip # Unzip source code zip package

5.4 After the unzip is complete, visit ZenTao software source code in your browser and install ZenTao.The default access address is (the name and path of the ZenTao source code folder has not been modified): http://serverip/zentaopms/www/index.php

Note: After you finish the installation, please delete install.php file for safety reasons (the default program will delete it).