Add DHParam to Plesk Panel

Introduction

You can fix Logjam for the Plesk Panel by simply adding the standard Nginx dhparam directive to the plesk.conf file. Very similar to previous posts on adding OCSP and HSTS to Plesk.

First you will need to create your dhparam, you can follow my guide Creating DH Parameters here http://community.webcorecloud.com/tutorials/plesk_articles/creating_2048_dhparm_key/, and then locate the file and edit with your favourite editor…

Plesk Server .conf /etc/sw-cp-server/conf.d/plesk.conf

/etc/sw-cp-server/conf.d/plesk.conf

And add the Nginx ssl_dhparam directive above the certificate entries like so…

ssl_dhparam Directive
ssl_dhparam /etc/ssl/dh/RSA2048.pem;
ssl_certificate /opt/psa/admin/conf/httpsd.pem;
ssl_certificate_key /opt/psa/admin/conf/httpsd.pem;


ssl_dhparam /etc/ssl/dh/RSA2048.pem;
ssl_certificate /opt/psa/admin/conf/httpsd.pem;
ssl_certificate_key /opt/psa/admin/conf/httpsd.pem;

Save the file and restart the Plesk server…

Restart Plesk Web Server service sw-cp-server restart

And you are good to go.