Optional:    true,
			Type:        "on|off",
		},
		config.HelpKV{
			Key:         target.KafkaClientTLSCert,
			Description: "path to client certificate for mTLS auth",
			Optional:    true,
			Type:        "path",
			Sensitive:   true,
		},
		config.HelpKV{
			Key:         target.KafkaClientTLSKey,
			Description: "path to client key for mTLS auth",

* [Write good commit messages.](https://cbea.ms/git-commit/#seven-rules)
* [Sign off your commits](https://git-scm.com/docs/git-commit#Documentation/git-commit.txt---signoff) to indicate that you agree to the terms of [Developer Certificate of Origin](https://developercertificate.org/). We can only accept PRs that have all commits signed off.
* Keep commits discrete. Avoid including multiple unrelated changes in a single commit.

 * **Handshake**: cipherSuite, localCertificates, localPrincipal, peerCertificates, peerPrincipal,
   tlsVersion
 * **HandshakeCertificates**: keyManager, trustManager
 * **Headers**: size
 * **HeldCertificate**: certificate, keyPair
 * **HttpLoggingInterceptor**: level
 * **HttpUrl**: encodedFragment, encodedPassword, encodedPath, encodedPathSegments, encodedQuery,
   encodedUsername, fragment, host, password, pathSegments, pathSize, port, query,

        .addSubjectAlternativeName(server.hostName)
        .build()
    val serverHandshakeCertificates =
      HandshakeCertificates
        .Builder()
        .addTrustedCertificate(clientCa.certificate)
        .heldCertificate(serverCertificate)
        .build()
    server.useHttps(serverHandshakeCertificates.sslSocketFactory(), false)
    server.enqueue(MockResponse().setBody("abc"))
    server.requestClientAuth()

certSecret: "" publicCrt: public.crt privateKey: private.key ## Trusted Certificates Settings for MinIO. Ref: https://docs.minio.io/docs/how-to-secure-access-to-minio-server-with-tls#install-certificates-from-third-party-cas ## Bundle multiple trusted certificates into one secret and pass that here. Ref: https://github.com/minio/minio/tree/master/docs/tls/kubernetes#2-create-kubernetes-secret ## When using self-signed certificates, remember to include MinIO's own certificate in the bundle with key public.crt....

certSecret: "" publicCrt: public.crt privateKey: private.key ## Trusted Certificates Settings for MinIO. Ref: https://docs.minio.io/docs/how-to-secure-access-to-minio-server-with-tls#install-certificates-from-third-party-cas ## Bundle multiple trusted certificates into one secret and pass that here. Ref: https://github.com/minio/minio/tree/master/docs/tls/kubernetes#2-create-kubernetes-secret ## When using self-signed certificates, remember to include MinIO's own certificate in the bundle with key public.crt....

		return val
	}

	ldapServer := getCfgVal(ServerAddr)
	if ldapServer == "" {
		return l, nil
	}

	// Set ServerName in TLS config for proper certificate validation
	host, _, err := net.SplitHostPort(ldapServer)
	if err != nil {
		host = ldapServer
	}

	l.LDAP = ldap.Config{
		ServerAddr:    ldapServer,
		SRVRecordName: getCfgVal(SRVRecordName),

import java.io.IOException
import java.net.InetAddress
import java.net.UnknownHostException
import java.security.KeyStore
import java.security.SecureRandom
import java.security.Security
import java.security.cert.Certificate
import java.security.cert.CertificateException
import java.security.cert.X509Certificate
import java.util.concurrent.atomic.AtomicInteger
import java.util.logging.Handler
import java.util.logging.Level

	//	keyFile := filepath.Join(testDataDir, "server.key")
	cer, err := tls.X509KeyPair(cert, key)
	if err != nil {
		t.Fatalf("Failed to load certificate: %v", err)
	}
	config := &tls.Config{Certificates: []tls.Certificate{cer}}

	testServer := UnstartedTestServer(t, instanceType)
	testServer.Server.TLS = config
	testServer.Server.StartTLS()
	return testServer
}

- Added two client certificate metrics for exec auth:
    - `rest_client_certificate_expiration_seconds` a gauge reporting the lifetime of the current client certificate. Reports the time of expiry in seconds since January 1, 1970 UTC.