As stated in the first post of this guide, since 6 August 2017, there is an alternative added to ease users in using LE SSL for their ISPConfig panel, of which they may want to use LE4ISPC script created for this purpose. The script should support both nginx and apache2 from ISPConfig up to pure-ftpd, except for monit which you should add it manually. Before using it, you should already completed the tutorial from step 1 to 5 and have : 1. Created the website for your server via ISPConfig; 2. The website is accessible online; 3. ISPConfig SSL is enabled (via installation or update); 4. LE SSL is successfully enabled for the website.