openssl s_client -4 --connect deno.land:443
openssl s_client -6 --connect deno.land:443
root@4a746f636a41:/# curl -v https://deno.land/std@0.202.0/assert/mod.ts* Trying 34.120.54.55:443...* Connected to deno.land (34.120.54.55) port 443 (#0)* ALPN: offers h2,http/1.1* TLSv1.3 (OUT), TLS handshake, Client hello (1):* CAfile: /etc/ssl/certs/ca-certificates.crt* CApath: /etc/ssl/certs* OpenSSL SSL_connect: SSL_ERROR_SYSCALL in connection to deno.land:443 * Closing connection 0curl: (35) OpenSSL SSL_connect: SSL_ERROR_SYSCALL in connection to deno.land:443 root@4a746f636a41:/#