after SSL setup on our Graylog server, I can login into Graylog and the browser is satisfied with the certificate. Right after login into Graylog via SSL, the following errors start to apear in /var/log/graylog/server.log:
PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
After logout, the error messages stop filling the logfile.
Also: I can define an input (Syslog UDP) in the menu System > Inputs, but I can’t start it.
There are no errors and the input starts fine if TLS is disabled in server.conf
OS Information: AlmaLinux release 8.7 (Stone Smilodon)
Package Version: 5.0.6
Service logs, configurations, and environment variables:
2023-05-19T13:41:11.394+02:00 WARN [ProxiedResource] Unable to call https://syslog2.izum.pri:9000/api/system/metrics/multiple on node : PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
http_enable_tls = true
http_tls_cert_file = /etc/pki/tls/certs/graylog-certificate.pem
http_tls_key_file = /etc/pki/tls/private/graylog-key.pem
http_tls_key_password = XXXX
I have checked similar posts in the community without success.
Thanks for your suggestions,