This is an old revision of the document!
- selfhostedwp
- Jonathan Haack
- Haack's Networking
- netcmnd@jonathanhaack.com
selfhostedwp
This tutorial is for setting up a self-hosted WordPress instance on Debian GNU/Linux. This tutorial assumes you have some familiarity setting up a LAMP stack. If you need help with that, check out Apache Survival. Alright, let's install our LAMP stack and required/optional php modules. Make sure to review what your instance requires and don't install or configure modules you don't need.
sudo apt install apache2 mariadb-server php8.x php-common php-cgi php-cli php-zip php-mysql php-mbstring php-intl php-fpm php-curl php-gd php-imagick php-xml php-xmlrpc php-soap php-opcache php-apcu php-bcmath memcached wget unzip
Sometimes dpkg can choose which version of php you want and it's not always the version you want. In those cases, you can explicitly specify the version you need as follows:
sudo apt-get install php8.2-{common,cgi,cli,zip,mysql,mbstring,intl,fpm,curl,gd,imagick,xml,xmlrpc,gpm,soap,opcache,apcu,bcmath}
Apache2 will set up a 000-default.conf automatically and your host should now resolve. Be sure to set up TLS with certbot. Here's my preferred method:
sudo apt install certbot letsencrypt python3-certbot-apache sudo certbot --authenticator standalone --installer apache -d wordpress.com --pre-hook "systemctl stop apache2" --post-hook "systemctl start apache2" crontab -e <30 2 * * 1 /usr/bin/certbot renew >> /var/log/le-renew.log>
Once you have the LAMP stack setup and TLS properly configured, it's time to make some decisions on your php handler and your apache2 multi-processing module (mpm). There's extensive debate on this which you can read up on here. In this tutorial, I've chosen not to use mpm_prefork and libapache2-mod-php. Instead I am using mpm_event and php-fpm. This is not necessary for many smaller instances or self-hosted scenarios. If you are new to self-hosting, simply run sudo apt install libapache2-mod-php8.x and remove the php-fpm and mpm_event steps below.
sudo apt remove libapache2-mod-php --purge sudo a2enmod ssl sudo a2enmod headers sudo a2enmod cache sudo a2enmod rewrite sudo a2enmod setenvif sudo a2dismod php8.2 sudo a2dismod mpm_prefork sudo a2enmod mpm_event sudo a2enmod proxy sudo a2enmod proxy_fcgi sudo a2enconf php8.2-fpm sudo a2enconf php8.2-cgi sudo apache2ctl configtest sudo systemctl restart apache2 sudo systemctl restart php8.2-fpm
There are two standard ways to configure php-fpm. One of those is to use ProxyPassReverse, however, this will disable the use of .htaccess in your WordPress root which is not ideal. The next common way which I prefer and use here, is to add a FilesMatch condition to your virtual host as follows. Within the <Include> and </Include> portion of your default-ssl.conf virtual host, add something like:
<FilesMatch ".+\.ph(ar|p|tml)$">
SetHandler "proxy:unix:/run/php/php8.2-fpm.sock|fcgi://localhost"
</FilesMatch>
That takes care of configuring php-fpm and mpm_event. Before proceeding, navigate to your tld.domain in a web browser and make sure that your site resolves properly. If it does not, then you should debug your setup. To do that, there's three tools that can help: phpmyadmin, phpinfo page, and configuration checking. If your page does not even resolve, your first recourse should be to check the php handler, multi-processing modules, and your apache config files:
sudo apachectl -M | grep 'mpm' sudo apachectl -M | grep 'proxy' sudo apache2ctl configtest
The output of mpm should show mpm_event and the output of proxy grep should show proxy_module and proxy_fcgi_module in use. If not, trace back over the steps above and see what went wrong. As for configtest, it should either tell you what's wrong or return “Syntax OK”. If the output of the above commands is incorrect and/or you simply want a graphical way to check your handler and mult-processing module, then you can either create a phpinfo page or install phpadmin. There are many additional benefits to using phpmyadmin, so let's review how to install that first:
sudo apt install phpmyadmin sudo htpasswd -c /etc/apache2/.phpmyadmin phpmyadmin sudo nano /usr/share/phpmyadmin/.htaccess <AuthType Basic> <AuthName "Restricted Files"> <AuthUserFile /etc/apache2/.phpmyadmin> <Require valid-user>
If you don't need something as heavy as phpmyadmin, you can optionally create a phpinfo page instead:
sudo nano /var/www/wordpress.com/public_html/info.php sudo htpasswd -c /etc/apache2/.phpinfo phpinfo sudo nano /usr/share/phpinfo/.htaccess <AuthType Basic> <AuthName "Restricted Files"> <AuthUserFile /etc/apache2/.phpinfo> <Require valid-user>
Use these tools to make sure your handler and multi-processing module are configured to your preference and functional. After that's all working, let's make sure that your WordPress index.php is set to top priority as follows:
sudo nano /etc/apache2/mods-enabled/dir.conf <DirectoryIndex //index.php// index.html index.cgi index.pl index.xhtml index.htm>
Close and save the file. Let's now set up a database now for the WordPress instance as follows:
sudo mysql -u root -p CREATE DATABASE databasename DEFAULT CHARACTER SET utf8 COLLATE utf8_unicode_ci; GRANT ALL ON databasename.* TO 'databaseuser'@'localhost' IDENTIFIED BY 'passwordhere'; FLUSH PRIVILEGES; EXIT;
Next up, it is time to allow overrides in your primary apache configuration:
sudo nano /etc/apache2/apache2.conf <Directory /var/www/> <AllowOverride All>
If you have not set the fully qualified domain name, you may get an error - that can safely be ignored unless you desire it. If you want to get rid of that, navigate to /etc/apache2/apache.conf and enter a ServerName. Otherwise, time to download Word Press:
cd ~/Downloads mkdir wpdownload cd wpdownload curl -O https://wordpress.org/latest.tar.gz tar xzvf latest.tar.gz touch ~/Downloads/wpdownload/wordpress/.htaccess sudo chmod 640 ~/Downloads/wpdownload/wordpress/.htaccess cp ~/Downloads/wpdownload/wordpress/wp-config-sample.php ~/Downloads/wpdownload/wordpress/wp-config.php mkdir ~/Downloads/wpdownload/wordpress/wp-content/upgrade
Okay, we will need the files and directories I created once we get it running. Now, let's move the wordpress directory to the proper location for self-hosting.
sudo mv ~/Downloads/wpdownload/wordpress /var/www/site1.com/public_html
Now, let's set up permissions and ownership:
sudo chown -R www-data:www-data /var/www/site1.com/public_html
sudo find /var/www/site1.com/public_html -type d -exec chmod g+s {} \;
sudo chmod 755 /var/www/site1.com/public_html/wp-content
sudo chmod -R 755 /var/www/site1.com/public_html/wp-content/themes
sudo chmod -R 755 /var/www/site1.com/public_html/wp-content/plugins
Ok, time to grab 'secure values' from WP.com and then set up wp-config.php for the installation, and also enter in the database credentials from above:
curl -s https://api.wordpress.org/secret-key/1.1/salt/ sudo nano /var/www/site1.com/public_html/wp-config.php
Let's also add the following line to the wp-config.php file for updates. Note: This only needs to be added if you are not using libapachemod sfaik.
sudo nano /var/www/site1.com/public_html/wp-config.php
<define('FS_METHOD','direct');>
Visit wordpress site and configure by opening a web browser of your choice and entering site1.com. If you need more than one site, but do not want to set up a separate virtual host, for example using subdomain.site1.com, then you should read Word Press Multisite. Optimizing WP is a different matter, for caching and header security, and other best practices, consider the following.
apt install memcached nano /etc/default/memcached a2enmod cache
Put this snippet under #Include /etc/proftpd/tls.conf and then restart the service:
sudo systemctl restart proftpd.service
Optimizing and securing WordPress usually boils down to some cache and header settings. Cache and/or page expiry settings:
apt install memcached nano /etc/default/memcached a2enmod cache a2enmod expires
<IfModule mod_expires.c>
ExpiresActive On
ExpiresByType image/jpg "access 1 year"
ExpiresByType image/jpeg "access 1 year"
ExpiresByType image/gif "access 1 year"
ExpiresByType image/png "access 1 year"
ExpiresByType text/css "access 1 week"
ExpiresByType text/html "access 1 month"
ExpiresByType text/x-javascript "access 1 week"
ExpiresDefault "access 1 month"
</IfModule>
Enable re-writes:
a2enmod rewrite
<IfModule mod_rewrite.c>
RewriteEngine On
RewriteRule .* - [E=HTTP_AUTHORIZATION:%{HTTP:Authorization}]
RewriteBase /
RewriteRule ^index\.php$ - [L]
RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
RewriteRule . /index.php [L]
<FilesMatch "\.(js|css|jpe?g|png|gif|eot|otf|svg|ttf|woff2?)$">
Header set Timing-Allow-Origin "*"
</FilesMatch>
</IfModule>
Enable headers:
a2enmod headers
<IfModule mod_headers.c>
Header always set X-Content-Type-Options "nosniff"
<IfModule mod_setenvif.c>
SetEnvIf Origin "^(.+)$" CORS=$0
</IfModule>
Header set Access-Control-Allow-Origin %{CORS}e env=CORS
Header set Access-Control-Allow-Credentials "true" env=CORS
<FilesMatch "\.(php|html)$">
Header set X-Frame-Options "ALLOW"
Header set X-XSS-Protection "0"
Header set X-Download-Options "noopen"
Header set X-Permitted-Cross-Domain-Policies "none"
Header set X-DNS-Prefetch-Control "on"
Header set Pragma "no-cache"
Header set Age "0"
Header set Cache-Control ""
Header set Strict-Transport-Security "max-age=0" env=HTTPS
Header set Referrer-Policy ""
Header set Cross-Origin-Embedder-Policy "unsafe-none"
Header set Cross-Origin-Opener-Policy "unsafe-none"
Header set Report-To '{"max_age": 0, "endpoints": [{"url": ""}]}'
Header set Content-Security-Policy "default-src * data:; script-src https: 'unsafe-inline' 'unsafe-eval'; style-src https: 'unsafe-inline'"
Header set Referrer-Policy "no-referrer-when-downgrade"
Header set Feature-Policy "camera 'none'; fullscreen 'self'; geolocation *; microphone 'self' https://plaza.pvpfrontier/*"
</FilesMatch>
</IfModule>
Personally, I don't think anyone should be using ftp or even sftp right now, but many still do. If so, here's how to make an sftp server for updating WordPress that way:
You can optionally require an sftp server instead of using the default installer. Here's an example using proftp, which is still maintained:
sudo apt install proftpd ftp ftp-ssl cd /etc/proftpd sudo openssl req -new -x509 -days 7305 -nodes -out ftpd-rsa.pem -keyout ftpd-rsa-key.pem sudo nano /etc/proftpd/proftpd.conf a2enmod tls <IfModule mod_tls.c> TLSEngine on TLSLog /var/log/proftpd-tls.log TLSProtocol TLSv1 # Are clients required to use FTP over TLS when talking to this server? TLSRequired off TLSRSACertificateFile /etc/proftpd/ftpd-rsa.pem TLSRSACertificateKeyFile /etc/proftpd/ftpd-rsa-key.pem # Authenticate clients that want to use FTP over TLS? TLSVerifyClient off TLSOptions NoSessionReuseRequired </IfModule>
— oemb1905 2023/06/29 04:29
