I am trying to enable kerberos authentication in kafka server .Please find the configurations mention below I am using below config for zookeeper jaas config

Getting below error during kafka startup:

    [2022-01-14 09:51:21,405] ERROR An error: (java.security.PrivilegedActionException: javax.security.sasl.SaslException: GSS initiate failed [Caused by GSSException: No valid credentials provided (Mechanism level: Server not found in Kerberos database (7) - UNKNOWN_SERVER)]) occurred when evaluating Zookeeper Quorum Member's  received SASL token. This may be caused by Java's being unable to resolve the Zookeeper Quorum Member's hostname correctly. You may want to try to adding '-Dsun.net.spi.nameservice.provider.1=dns,sun' to your client's JVMFLAGS environment. Zookeeper Client will go to AUTH_FAILED state. (org.apache.zookeeper.client.ZooKeeperSaslClient)
    [2022-01-14 09:51:21,405] ERROR SASL authentication with Zookeeper Quorum member failed. (org.apache.zookeeper.ClientCnxn)
    javax.security.sasl.SaslException: An error: (java.security.PrivilegedActionException: javax.security.sasl.SaslException: GSS initiate failed [Caused by GSSException: No valid credentials provided (Mechanism level: Server not found in Kerberos database (7) - UNKNOWN_SERVER)]) occurred when evaluating Zookeeper Quorum Member's  received SASL token. This may be caused by Java's being unable to resolve the Zookeeper Quorum Member's hostname correctly. You may want to try to adding '-Dsun.net.spi.nameservice.provider.1=dns,sun' to your client's JVMFLAGS environment. Zookeeper Client will go to AUTH_FAILED state. [Caused by java.security.PrivilegedActionException: javax.security.sasl.SaslException: GSS initiate failed [Caused by GSSException: No valid credentials provided (Mechanism level: Server not found in Kerberos database (7) - UNKNOWN_SERVER)]]

I'm trying to tackle a kerberos config as shown above .Not sure why unable to understand how it works after configuration

zookeerper config :-

Server{ 
    com.sun.security.auth.module.Krb5LoginModule required 
    useKeyTab=True 
    keyTab="/home/apps/JioMhere/KAFKA_NEW/keytab_files/kafkast1.user.keytab" 
    storeKey=true 
    useTicketCache=false 
    principal="kafkast/10.135.128.156@ST.JIOCONNECT.COM"; 
}; 

Kafka server is as below:

KafkaClient{ 
    com.sun.security.auth.module.Krb5LoginModule required            
    useKeyTab=True 
    keyTab="/home/apps/JioMhere/KAFKA_NEW/keytab_files/kafkast1.user.keytab" 
    storeKey=true 
    useTicketCache=false 
    principal="kafkast/10.135.128.156@ST.JIOCONNECT.COM"; 
};