Last updated on March 29th, 2022 at 09:39 pm
In this demo, we are going to learn how to install DokuWiki on CentOS 8 server. DokuWiki is an opensource software written in PHP that allows users to create and edit pages using a web browser. It works on plain texts and requires no database. Read about the features provided by the DokuWiki on DokuWiki features page.
Install DokuWiki on CentOS 8
Run system update
To begin with, ensure your system packages are up-to-date.
Install PHP and Other Required PHP Modules
DokuWiki is a PHP based web application which requires PHP and some other PHP extensions to function correctly. These can be installed by running the command below;
dnf install php php-gd php-xml php-json
Run Apache Web Server
In this demo, we are using Apache as our web server for DokuWiki. Apache is installed alongside PHP.
dnf info httpd
Installed Packages Name : httpd Version : 2.4.37 Release : 16.module_el8.1.0+256+ae790463 Architecture : x86_64 Size : 5.4 M Source : httpd-2.4.37-16.module_el8.1.0+256+ae790463.src.rpm Repository : @System From repo : AppStream Summary : Apache HTTP Server URL : https://httpd.apache.org/ License : ASL 2.0 Description : The Apache HTTP Server is a powerful, efficient, and extensible : web server.
If not installed for some reasons, run the command below to install it.
dnf install httpd
Next, start and enable Apache to run on system boot.
systemctl enable --now httpd
Allow Apache through Firewall
To remotely allow HTTP traffic to the DokuWiki server, you need to open port 80 on firewall. Otherwise, for HTTPS, open port 443. This demo is using HTTP, hence open port 80/TCP by running the command below;
firewall-cmd --permanent --add-port=80/tcp firewall-cmd --reload
Install DokuWiki on CentOS 8
DokuWiki installation is as simple as downloading the application itself and placing it on the default web root directory.
Download Stable Release Version
Navigate to DokuWiki download’s page and grab the latest release version. You can simply run the command below to download the current stable release version of DokuWiki.
dnf install wget
Extract DokuWiki Tarball
Once the download is complete, run the command below to extract DokuWiki to the default web root directory, which is
/var/www/html in this demo.
dnf install tar
tar xzf dokuwiki-stable.tgz --strip-components=1 -C /var/www/html/
This will extract DokuWiki and place it on
ls /var/www/html/ bin conf COPYING data doku.php feed.php inc index.php install.php lib README vendor VERSION
Create Apache VirtualHost for DokuWiki
Create an Apache VirtualHost for DokuWiki as shown below;
<VirtualHost *> ServerName dokuwiki.kifarunix-demo.com DocumentRoot /var/www/html <Directory ~ "/var/www/html/(bin/|conf/|data/|inc/)"> <IfModule mod_authz_core.c> AllowOverride All Require all denied </IfModule> <IfModule !mod_authz_core.c> Order allow,deny Deny from all </IfModule> </Directory> ErrorLog /var/log/httpd/dokuwiki_error.log CustomLog /var/log/httpd/dokuwiki_access.log combined </VirtualHost>
Save and quit the configuration file.
Note that the line,
AllowOverride All, turns on the use of
htaccess file for more directory access controls. As such, rename the DokuWiki .htaccess file as shown below;
Set the ownership of the DokuWiki web root directory to
chown -R apache:apache /var/www/html
Configure SELinux Policies for DokuWiki
If SELinux is running, you need to run the commands below to configure SELinux to allow various accesses for DokuWiki.
dnf install policycoreutils-python-utils
semanage fcontext -a -t httpd_sys_rw_content_t "/var/www/html/conf(/.*)?"
restorecon -Rv /var/www/html/conf
restorecon -Rv /var/www/html/data
setsebool -P httpd_can_network_connect on
setsebool -P httpd_can_sendmail on
setsebool -P httpd_unified 1
semanage fcontext -a -t httpd_sys_rw_content_t "/var/www/html/lib/plugins(/.*)?"
restorecon -Rv /var/www/html/lib/plugins
semanage fcontext -a -t httpd_sys_rw_content_t "/var/www/html/lib/tpl(/.*)?"
restorecon -Rv /var/www/html/lib/tpl
If you ever get any denied access, be sure to check the audit logs;
tail -f /var/log/audit/audit.log | grep -i denied
Check for any syntactical error on Apache configuration file and restart it if no issues.
httpd -t Syntax OK
systemctl restart httpd
Finalize DokuWiki Installation
To complete the installation of DokuWiki on CentOS 8, you can now access it from your preferred browser using the URL,
Set the name of the wiki, enable the ACL and other settings and click Save and continue to your DokuWiki welcome page.
You can now login to your DokuWiki as the user created while setting up the ACL.
If you need to make any configurations upon successful authentication, click on the Admin gear icon at the top right corner.
That is all on how to install DokuWiki on CentOS 8.
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Thank you Monique. We are glad that the tutorial was useful to you.
Thanks you from Japan !!
(Sorry I cant speek English. And I have no vocabulary…)
We are glad this helped you Kenichiro, 🙂 Enjoy
This has been the most useful documentation I’ve been able to find on this subject. Thank you
Thank you for the feedback Dilla! Enjoy