How to update the "Additional nginx directives" field for all/several domains in Plesk

Question

How to update the "Additional nginx directives" field for all/several domains?

Answer

For security reasons, additional nginx directives can be adjusted only for new domains by means of service plan settings (Service Plans > plan_name > Web Server > Additional nginx directives). Otherwise, new directives can overwrite existing configuration and break websites' functionality.

Additional nginx directives for existing domains can be adjusted via a command-line interface.
 

Domain's additional nginx directives are saved in the vhost_nginx.conf configuration file which is located in /var/www/vhosts/system/example.com/conf. To update additional nginx directives for all/several domains, apply the following steps:

1. Connect to your Plesk server via SSH.

2. Create a list of domains, nginx directives of which should be updated:

   Warning: All existing nginx directives will be overwritten for these domains by the script. Make sure existing nginx directives can be safely overwritten.

   2.1. Create a new file with the name domains_list:

   # touch domains_list

   2.2. Add required domains to the created file. Each domain should be listed on a new line:

   CONFIG_TEXT: example.com
   example.net
   example.org

   To add a list of all hosted domains to the file, run this command:

   # plesk bin site -l > domains_list

3. Create a file with nginx directives that should be added to the domains from step 2:

   3.1. Create a new file with the name directive_template:

   # touch directive_template

   3.2. Add required nginx directives to the file. For example:

   Note: Make sure new additional nginx directives will not break nginx configuration. Before adding, test additional nginx directives on one domain in Plesk at Domains > example.com > Apache & nginx Settings.

   CONFIG_TEXT: proxy_send_timeout 1200s;
   proxy_read_timeout 1200s;
   fastcgi_send_timeout 1200s;
   fastcgi_read_timeout 1200s;
   proxy_buffers 8 16k;
   proxy_buffer_size 32k;
   fastcgi_buffers 8 16k;
   fastcgi_buffer_size 32k;

4. Run the command below to apply the changes:

   # while read -r domain; do install directive_template -o root -g nginx -m 600 "/var/www/vhosts/system/${domain}/conf/vhost_nginx.conf"; plesk sbin httpdmng --reconfigure-domain "${domain}" -no-restart; done < domains_list && service nginx reload

Alternative solutions:

• Set these directives in the custom nginx configuration file according to this Plesk Obsidian documentation page.
• Add required nginx directives to the global nginx configuration file according to this KB article.