And even, there are times I get this error on Logstash logs:
{:timestamp=>"2016-10-24T11:11:48.384000+0200", :message=>"Looks like you either have an invalid key or your private key was not in PKCS8 format.", :exception=>java.lang.IllegalArgumentException: Unsupported ciphersuite TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA38, :level=>:error}
Do you have a recommended method to generate those certificates?
Yes, I have. But no luck at all. I can't test the certificate with curl because I receive a NSS error -5961 (PR_CONNECT_RESET_ERROR), and the only alternative I have is to compile Curl without NSS, which I can't do right now because I'm not allowed to do it yet. But I will try to generate another certificate, just in case.
For the Logstash error, I guess I have to transform the key file into the PKCS8 format. I will check the command for that.
UPDATE: @steffens I generated another certificate, and it seems to work for now. For the Logstash stuff, I had to transform the .key file into a .p8 file. The error message is gone.
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