sudo ping6 -D -G 1500,1400 fly.io
$ curl -v https://fly.io/blog/introducing-litefs/
* Trying 2a09:8280:1::a:791:443...
* Connected to fly.io (2a09:8280:1::a:791) port 443 (#0)
* ALPN, offering h2
* ALPN, offering http/1.1
* successfully set certificate verify locations:
* CAfile: /etc/ssl/cert.pem
* CApath: none
* (304) (OUT), TLS handshake, Client hello (1):
curl: (35) error:02FFF036:system library:func(4095):Connection reset by peer
$ curl -4v https://fly.io/blog/introducing-litefs/
* Trying 37.16.18.81:443...
* Connected to fly.io (37.16.18.81) port 443 (#0)
* ALPN, offering h2
* ALPN, offering http/1.1
* successfully set certificate verify locations:
* CAfile: /etc/ssl/cert.pem
* CApath: none
* (304) (OUT), TLS handshake, Client hello (1):
* (304) (IN), TLS handshake, Server hello (2):
* (304) (IN), TLS handshake, Unknown (8):
* (304) (IN), TLS handshake, Certificate (11):
* (304) (IN), TLS handshake, CERT verify (15):
* (304) (IN), TLS handshake, Finished (20):
* (304) (OUT), TLS handshake, Finished (20):
* SSL connection using TLSv1.3 / AEAD-CHACHA20-POLY1305-SHA256
* ALPN, server accepted to use h2
* Server certificate:
* subject: CN=fly.io
* start date: Jul 25 11:20:01 2022 GMT
* expire date: Oct 23 11:20:00 2022 GMT
* subjectAltName: host "fly.io" matched cert's "fly.io"
* issuer: C=US; O=Let's Encrypt; CN=R3
* SSL certificate verify ok.
* Using HTTP2, server supports multiplexing
* Connection state changed (HTTP/2 confirmed)
* Copying HTTP/2 data in stream buffer to connection buffer after upgrade: len=0
* Using Stream ID: 1 (easy handle 0x135011c00)
> GET /blog/introducing-litefs/ HTTP/2
> Host: fly.io
> user-agent: curl/7.79.1
> accept: */*
>
* Connection state changed (MAX_CONCURRENT_STREAMS == 32)!
< HTTP/2 200
< accept-ranges: bytes
< cache-control: max-age=0, private, must-revalidate
< content-type: text/html
< date: Wed, 21 Sep 2022 16:50:16 GMT
< etag: "632b20f0-1bdc1"
< fly-request-id: 01GDGFA3RPZPRDV9M3AQ3159ZK-fra
< last-modified: Wed, 21 Sep 2022 14:34:24 GMT
< server: Fly/51ee4ef9 (2022-09-20)
< via: 1.1 fly.io, 2 fly.io
<
<!doctype html> ...
https://pypi.org/project/sh/
Basically you can just `from sh import [command]` and then have an installed binary command available as function