kafka-security - Gopi Gorantala

Kafka TransactionalIdAuthorizationException: Fix the ACL

TransactionalIdAuthorizationException: Transactional Id authorization failed. Why your EOS/Spring transactional producer dies on a secured cluster and the exact ACLs that fix it.

Kafka TopicAuthorizationException: Not Authorized to Access Topics — Fix

Hitting TopicAuthorizationException: Not authorized to access topics in Kafka? Here's why ACLs deny you, how principals really resolve, and the exact fix.

Kafka: Connection Terminated During Authentication — Fix

Kafka AuthenticationException 'terminated during authentication' with its three-reason hint decoded: security.protocol mismatch, TLS/firewall, and mTLS. Repro plus the fix.

Kafka SSL Handshake Failed: PKIX and Hostname Fixes

Fix org.apache.kafka.common.errors.SslAuthenticationException: SSL handshake failed — PKIX path errors, SAN mismatches, and listener protocol mixups fast.

Kafka SaslAuthenticationException: Authentication Failed — Fix

Getting SaslAuthenticationException: Authentication failed in Kafka? Fix invalid SASL credentials, JAAS config, and missing SCRAM users with working examples.