gistfile1.txt

* About to connect() to kkbox.slack.com port 443 (#0)
*   Trying 54.173.140.113... connected
* successfully set certificate verify locations:
*   CAfile: none
  CApath: /etc/ssl/certs
* SSLv3, TLS handshake, Client hello (1):
* SSLv3, TLS handshake, Server hello (2):
* SSLv3, TLS handshake, CERT (11):
* SSLv3, TLS handshake, Server key exchange (12):
* SSLv3, TLS handshake, Server finished (14):
* SSLv3, TLS handshake, Client key exchange (16):
* SSLv3, TLS change cipher, Client hello (1):
* SSLv3, TLS handshake, Finished (20):
* SSLv3, TLS change cipher, Client hello (1):
* SSLv3, TLS handshake, Finished (20):
* SSL connection using ECDHE-RSA-AES128-SHA
* Server certificate:
*        subject: C=US; ST=California; L=San Francisco; O=Slack Technologies, Inc; CN=*.slack.com
*        start date: 2015-01-26 00:00:00 GMT
*        expire date: 2017-02-18 23:59:59 GMT
*        subjectAltName: kkbox.slack.com matched
*        issuer: C=US; O=GeoTrust Inc.; CN=GeoTrust SSL CA - G3
*        SSL certificate verify ok.
> HEAD / HTTP/1.1
> User-Agent: curl/7.22.0 (x86_64-pc-linux-gnu) libcurl/7.22.0 OpenSSL/1.0.1 zlib/1.2.3.4 libidn/1.23 librtmp/2.3
> Host: kkbox.slack.com
> Accept: */*
> 
< HTTP/1.1 503 Service Unavailable: Back-end server is at capacity
HTTP/1.1 503 Service Unavailable: Back-end server is at capacity
< Connection: keep-alive
Connection: keep-alive
* no chunk, no close, no size. Assume close to signal end

< 
* Closing connection #0
* SSLv3, TLS alert, Client hello (1):