I'm new to this role.
I have purchased domain name in Godaddy , SSL from namecheap and hosted in linode.
for ssl renew i need to add cname in linode, can anyone help discribe the steps.
i have already added cname details in linode. but its not worked
Did you already point your domain provider to linode dns servers?
It is described in this article.
Use Linode’s Name Servers with Your Domain
After you purchase a domain, log in to your domain registrar’s control panel and set the name servers for your domain name to the entries below. See the instructions on your domain name registrar’s website for more information.