When making a change to an nginx web server running on Ubuntu, I tested the nginx configuration and received the following warning: nginx: [warn] ssl_stapling ignored, host not found in OCSP responder ocsp.int-x3.letsencrypt.org/I'd set up the web server a few months ago and had been updating the nginx configuration without seeing this warning until yesterday.I started poking around and tested OCSP using openssl. I ran the following command: sudo openssl ocsp -issuer chain.pem -cert tm.pem -text -url http://ocsp.int-x3.letsencrypt.org/with the following resultsOCSP Request Data:Version: 1 (0x0)Requestor List:    Certificate ID:      Hash Algorithm: sha1      Issuer Name Hash: 7EE66AE7729AB3FCF8A220646C16A12D6071085D      Issuer Key Hash: A84A6A63047DDDBAE6D139B7A64565EFF3A8ECA1      Serial Number: 03BD1754FBA80442EFE1CE2735DC96C598CFRequest Extensions:    OCSP Nonce:         0410DC5C7354CF0C9838F66506F58A081AE3Error connecting BIOError querying OCSP responder140605810423448:error:2006A066:BIO routines:BIO_get_host_ip:bad hostname lookup:b_sock.c:146:host=ocsp.int-x3.letsencrypt.orgThe website seems to work fine. I can't find much info about the error. I don't know what changed. Thanks.
OCSP Responder test error: bad hostname lookup
openssl;nginx