Cobra Forum

Applicable to:

• Plesk for Linux

Question

How to enable or disable the Google PageSpeed module in Nginx for a domain in Plesk?


Answer

Warning: Due to a CentOS Kernel Bug, do not enable PageSpeed in nginx when SELinux is in enforcing mode

                                        Enabling Google PageSpeed module

1.Connect to a Plesk server via SSH

2.Enable the Google PageSpeed module for nginx:

# plesk sbin nginx_modules_ctl -e pagespeed

3.Create a directory where nginx cache will be stored and adjust permissions and ownership:

# mkdir /var/cache/nginx_example_com/
# chown nginx:nginx /var/cache/nginx_example_com/
# chmod 700 /var/cache/nginx_example_com/

4.Log in to Plesk

5.Go to Domains > example.com > Apache and nginx settings

6.Add the following lines into the Additional nginx directives and click OK to apply the changes:

Note: Replace FileCachePath with path created in Step 3 where the Nginx will store the cache

pagespeed on;
pagespeed FileCachePath "/var/cache/nginx_example_com/";
pagespeed RewriteLevel OptimizeForBandwidth;
location ~ "\.pagespeed\.([a-z]\.)?[a-z]{2}\.[^.]{10}\.[^.]+" {
add_header "" "";
}
location ~ "^/pagespeed_static/" { }
location ~ "^/ngx_pagespeed_beacon$" { }
7.To verify that the module is enabled, run the command on the server directly:

# curl -Is https://example.com | grep X-Page-Speed
X-Page-Speed: 1.13.35.2-0


                                    Disabling Google PageSpeed module

1.Connect to the server via SSH

2.Find the domains with PageSpeed enabled:

# grep -l pagespeed /var/www/vhosts/system/*/conf/vhost_nginx.conf | cut -d '/' -f6

3.Log in to Plesk

3.For every domain found in step 2 go to Domains > example.com > Apache and nginx settings

4.Remove the following lines from Additional nginx directives and click OK to apply the changes:

pagespeed on;
pagespeed FileCachePath "/var/cache/nginx_example_com/";
pagespeed RewriteLevel OptimizeForBandwidth;
location ~ "\.pagespeed\.([a-z]\.)?[a-z]{2}\.[^.]{10}\.[^.]+" {
add_header "" "";
}
location ~ "^/pagespeed_static/" { }
location ~ "^/ngx_pagespeed_beacon$" { }
6.Over SSH disable the Google PageSpeed module for nginx:

# plesk sbin nginx_modules_ctl -d pagespeed

7.Optionally, remove the cached files for each domain:

# rm -rf /var/cache/nginx_example_com/