Curl: (60) server certificate verification failed. CRLfile: none

При попыт­ке запро­сить через curl некий урл полу­ча­ем ошиб­ку

curl 'https://some.site.com/test/input' -H 'Content-Type: application/json' -d '{"test":"test"}'

Ответ с ошиб­кой

curl: (60) server certificate verification failed. CAfile: /etc/ssl/certs/ca-certificates.crt CRLfile: none

More details here: http://curl.haxx.se/docs/sslcerts.html curl performs SSL certificate verification by default, using a "bundle" of Certificate Authority (CA) public keys (CA certs). If the default bundle file isn't adequate, you can specify an alternate file using the --cacert option. If this HTTPS server uses a certificate signed by a CA represented in the bundle, the certificate verification probably failed due to a problem with the certificate (it might be expired, or the name might not match the domain name in the URL). If you'd like to turn off curl's verification of the certificate, use the -k (or --insecure) option.

Систе­ма — Ubuntu 16.04. Обнов­лять все паке­ты нель­зя — это живой и рабо­чий про­дакт сер­вер. Мето­дом акку­рат­ных тыков помог­ло дан­ное дей­ствие.

Ска­чи­ва­ем акту­аль­ные LetsEncrypt root CA сер­ти­фи­ка­ты:

sudo curl -k https://letsencrypt.org/certs/isrgrootx1.pem.txt -o /usr/local/share/ca-certificates/isrgrootx1.crt

sudo curl -k https://letsencrypt.org/certs/letsencryptauthorityx1.pem.txt -o /usr/local/share/ca-certificates/letsencryptauthorityx1.crt

sudo curl -k https://letsencrypt.org/certs/letsencryptauthorityx2.pem.txt -o /usr/local/share/ca-certificates/letsencryptauthorityx2.crt

sudo curl -k https://letsencrypt.org/certs/lets-encrypt-x1-cross-signed.pem.txt -o /usr/local/share/ca-certificates/letsencryptx1.crt

sudo curl -k https://letsencrypt.org/certs/lets-encrypt-x2-cross-signed.pem.txt -o /usr/local/share/ca-certificates/letsencryptx2.crt

sudo curl -k https://letsencrypt.org/certs/lets-encrypt-x3-cross-signed.pem.txt -o /usr/local/share/ca-certificates/letsencryptx3.crt

sudo curl -k https://letsencrypt.org/certs/lets-encrypt-x4-cross-signed.pem.txt -o /usr/local/share/ca-certificates/letsencryptx4.crt

Запус­ка­ем обнов­ле­ние сер­ти­фи­ка­тов

sudo dpkg-reconfigure ca-certificates

На пер­вый вопрос отве­ча­ем ‘Yes’ — дове­рять новым сер­ти­фи­ка­там. На вто­ром шаге нуж­но снять звез­доч­ку с пунк­та “DST Root CA X3” Про­ве­ря­ем сно­ва наш запрос curl .