I have try to create SSL certifiate for blog, placed on VPS with ubuntu.
I has try to create certificate with many different ways, but every time i has got the same error message:
The following errors were reported by the server: Domain: www.blog.mysitename.com Type: connection Detail: DNS problem: NXDOMAIN looking up A for www.blog.mysitename.com To fix these errors, please make sure that your domain name was entered correctly and the DNS A record(s) for that domain contain(s) the right IP address. Additionally, please check that your computer has a publicly routable IP address and that no firewalls are preventing the server from communicating with the client. If you're using the webroot plugin, you should also verify that you are serving files from the webroot path you provided.
I don’t know, what i do wrong
Please, help me solve this problem.