diff --git a/Blogs-and-tutorials.md b/Blogs-and-tutorials.md
index 58ad353..bd4c760 100644
--- a/Blogs-and-tutorials.md
+++ b/Blogs-and-tutorials.md
@@ -98,6 +98,7 @@ Here are some blogs that may help you:
 1. https://wiki.nps.edu/display/~mcgredo/letsencrypt
 1. http://icebearsoft.euweb.cz/letsencrypt-howto/#d1e970
 1. [Free Wildcard Certificates using Azure DNS, Let’s Encrypt and acme.sh](https://noobient.com/post/172797046216/free-wildcard-certificates-using-azure-dns-lets)
+1. [How to use acme.sh to install and update your VMware vCenter and PSC servers](https://wiki.9r.com.au/display/9R/LetsEncrypt+Certificates+for+vCenter+and+PSC)
 
 
 ## French