> getssl mydomain.ru
Registering account
Verify each domain
Verifying mydomain.ru
copying challenge token to /var/www/html/.well-known/acme-challenge/_EmO5OPRl7eNZL4NwEbqGbuDcqFJvLYhlLhGGq-GhlF
sending request to ACME server saying we're ready for challenge
checking if challenge is complete
Pending
checking if challenge is complete
Pending
checking if challenge is complete
getssl: mydomain.ru:Verify error:    "detail": "During secondary validation: Fetching http://mydomain.ru/.well-known/acme-challenge/_EmO5OPRl7eNZL4NwEbqGbuDcqFJvLYhlLhGGq-GhlF: Timeout during connect (likely firewall problem)"

ANotWorking
ERROR
mydomain.ru has an A (IPv4) record (mydomain IP) but a request to this address over port 80 did not succeed. Your web server must have at least one working IPv4 or IPv6 address.
A timeout was experienced while communicating with mydomain.ru/mydomain IP: Get "http://mydomain.ru/.well-known/acme-challenge/letsdebug-test": dial tcp mydomain IP:80: i/o timeout

Trace:
@0ms: Making a request to http://mydomain.ru/.well-known/acme-challenge/letsdebug-test (using initial IP mydomain IP)
@0ms: Dialing mydomain IP
@10001ms: Experienced error: dial tcp mydomain IP:80: i/o timeout