https and "Bad Gateway"

[djimno]

Hello,

i have a problem. On my apache2-server with plesk it is not possible to resolve the homepages with https. First i get the question about the certificates. I can trust the certificate and after this i get only "502 Bad Gateway" nginx.

For example: https://textilien-druck.eu

Thanks for help.

 

[IgorG]

Have you read this thread before posting?

[IMPORTANT]: READ THIS FIRST TO FIND QUICK SOLUTION FOR THE EXISTING ISSUE/QUESTION

Have you tried to search KB articles with string "502 Bad Gateway"?

 

[djimno]

The server is a Ubuntu 14.04.03 Server with 12.0.18 Update #65.
I have read the FAQ but nothing help. For example the Article ID: 123735,

 

[djimno]

Expand/Collapse Block: proxy_error.log

2015/09/21 11:14:57 [error] 16456#0: *22121 SSL_do_handshake() failed (SSL: error:140770FC:SSL routines:SSL23_GET_SERVER_HELLO:unknown protocol) while SSL handshaking to upstream, client: 80.187.100.126, server: tsv-g.de, request: "GET / HTTP/1.1", upstream: "https://85.214.216.88:7081/", host: "tsv-g.de"

After that i have follows the instructions of the Article 123735. Now i can´t resolve the https site. Without a error.

 

[UFHH01]

Hi djimno,

please have a look at: https://www.ssllabs.com/ssltest/analyze.html?d=textilien-druck.eu and https://www.ssllabs.com/ssltest/analyze.html?d=tsv-g.de
As you can see: "No secure protocols supported".

You could now use the KB - article search with the search term "No secure protocols supported", which would result to point to for example at:

[Plesk] CVE-2014-3566: POODLE attack exploiting SSL 3.0 fallback ( KB - article 123160 )​

There are additional threads and posts here in the forum, where you will find additional, possible modifications, when fixing your vulnerable server against Poodle, etc. Please use the search term "poodle", when you search in the forum at: SEARCH Forum