Logstash isn't accepting the self signed certificates and throws a sslv3 alert handshake failure - ssl

Question

I have set up an elsatic stack in my laptop and I have configured full stack (filebeat, logstash, elasticsearch and kibana) in it. But now I need to connect filebeat and logstash in a secure manner using SSL. But after using the self signed certificates taht I have created on my own it throws the following error when I try to verify the certificate with following curl request
**curl -v --cacert ca.crt https://localhost:5044**
The error -->
* error:14094410:SSL routines:ssl3_read_bytes:sslv3 alert handshake failure
* stopped the pause stream!
* Closing connection 0
curl: (35) error:14094410:SSL routines:ssl3_read_bytes:sslv3 alert handshake failure
It gives the above sslv3 handshake failure.
I have followed the following guideline to create the self signed certificate that can be configured with logstash
https://benjaminknofe.com/blog/2018/07/08/logstash-authentication-with-ssl-certificates/
I have followed those steps that suitable to my implementation.
Here is the full handshake output that i have received from the curl request
* Rebuilt URL to: https://localhost:5044/
* Trying 127.0.0.1...
* TCP_NODELAY set
* Connected to localhost (127.0.0.1) port 5044 (#0)
* ALPN, offering h2
* ALPN, offering http/1.1
* successfully set certificate verify locations:
* CAfile: ca.crt
CApath: /etc/ssl/certs
* TLSv1.2 (OUT), TLS handshake, Client hello (1):
* TLSv1.2 (IN), TLS handshake, Server hello (2):
* TLSv1.2 (IN), TLS handshake, Certificate (11):
* TLSv1.2 (IN), TLS handshake, Server key exchange (12):
* TLSv1.2 (IN), TLS handshake, Request CERT (13):
* TLSv1.2 (IN), TLS handshake, Server finished (14):
* TLSv1.2 (OUT), TLS handshake, Certificate (11):
* TLSv1.2 (OUT), TLS handshake, Client key exchange (16):
* TLSv1.2 (OUT), TLS change cipher, Client hello (1):
* TLSv1.2 (OUT), TLS handshake, Finished (20):
* TLSv1.2 (IN), TLS alert, Server hello (2):
* error:14094410:SSL routines:ssl3_read_bytes:sslv3 alert handshake failure
* stopped the pause stream!
* Closing connection 0
curl: (35) error:14094410:SSL routines:ssl3_read_bytes:sslv3 alert handshake failure
Here is my logstash.config file tha used in openssl key creation. I have given common name as localhost because that's how I mapped in /etc/hosts
127.0.0.1 localhostt
[req]
distinguished_name = req_distinguished_name
req_extensions = v3_req
prompt = no
[req_distinguished_name]
countryName = XX
stateOrProvinceName = XXXXXX
localityName = XXXXXX
postalCode = XXXXXX
organizationName = XXXXXX
organizationalUnitName = XXXXXX
commonName = localhost
emailAddress = XXXXXX
[v3_req]
keyUsage = keyEncipherment, dataEncipherment
extendedKeyUsage = serverAuth
subjectAltName = #alt_names
[alt_names]
DNS.1 = localhost
logstash input plugin
input {
beats {
port => 5044
ssl => true
ssl_certificate_authorities => ["/home/ssl/ca.crt"]
ssl_certificate => "/home/ssl/logstash.crt"
ssl_key => "/home/ssl/logstash.key"
#ssl_verify_mode => "force_peer"
client_inactivity_timeout => 1000
}
}
I expected to have configured ssl certificates that are accepted by logstash. But they are not accepted when I try to verify them with the curl reuqests