You all knew that Let’s Encrypt provides us 100% free SSL and we can use certbot tool to create, authorize and renew SSL automatically. I have had a post about this:
But certbot got stuck if your VPS is using for multiple domains with VirtualHost configuration as it modified vhost configuration file in a wrong way and make your file a mess. Also happens with auto renewal. So we have to do it manually first then I’ll guide you to do it automatically later.
First of all, issue renew command:
certbot -d config9.com certonly
In this command, I do specify the domain I want to renew. So do you.
Ignore debug/warnings about pyasn installation as it not affects our renewal.
Then, it will ask you like this:
How would you like to authenticate with the ACME CA? 1: Apache Web Server plugin (apache) 2: Spin up a temporary webserver (standalone) 3: Place files in webroot directory (webroot) Select the appropriate number [1-3] then [enter] (press 'c' to cancel): 3
Select 3 to put the authentication file to domain’s root folder.
Next, specify the root directory of the domain.
Input the webroot for config9.com: (Enter 'c' to cancel): /path/to/www/of/config9.com
Certbot then do challenge and notify you with successful message.
You should do the same thing with other domains.