[Solved] Given this Kafka client config snippet:security.protocol=SASL_SSL sasl.mechanism=SCRAM-SHA-256 sasl.jaas.config=org.apache.kafka.common.security.scram.... | Kafka

Kafka - Security

Given this Kafka client config snippet:

security.protocol=SASL_SSL
sasl.mechanism=SCRAM-SHA-256
sasl.jaas.config=org.apache.kafka.common.security.scram.ScramLoginModule required username="user" password="pass";

What will happen when the client tries to connect?

AClient will connect without authentication due to missing security.protocol

BClient will authenticate using SCRAM over SSL successfully if credentials are correct

CClient will fail because sasl.jaas.config is missing required SSL settings

DClient will use PLAINTEXT protocol ignoring SASL settings

Step-by-Step Solution

Solution:

Step 1: Analyze security.protocol and sasl.mechanism
security.protocol=SASL_SSL means client uses SASL authentication over SSL. sasl.mechanism=SCRAM-SHA-256 specifies SCRAM method.
Step 2: Check sasl.jaas.config correctness
The sasl.jaas.config provides the login module with username and password, enabling authentication.
Final Answer:
Client will authenticate using SCRAM over SSL successfully if credentials are correct -> Option B
Quick Check:
SASL_SSL with SCRAM and JAAS config = successful auth [OK]

Quick Trick: SASL_SSL + sasl.jaas.config enables secure SCRAM auth [OK]

Common Mistakes:

MISTAKES

Assuming SSL settings are missing in sasl.jaas.config
Ignoring security.protocol setting
Confusing PLAINTEXT with SASL_SSL

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Given this Kafka client config snippet:

Step 1: Analyze security.protocol and sasl.mechanism

Step 2: Check sasl.jaas.config correctness

Final Answer:

Quick Check:

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