SSL

How-tos for certificates and TLS: OpenSSL, keytool, keystores, conversions, and troubleshooting.

Check certificate (OpenSSL)Inspect a cert chain and TLS handshake with s_client.

Custom CA using OpenSSLCreate a CA and sign a server certificate.

KeytoolGenerate keys, create a CSR, import certs, list a keystore.

Convert PEM to JKSConvert a PEM cert and key to a Java JKS keystore.