Kibana login page

[Preethi]

Yes, I also tried to set password for teh default users for elasticsearch. But Throws me newly error. I don't think I changed the password for Elasticsearch or bootstrap before.

I ran this:
bin/elasticsearch-setup-passwords interactive

Error:
Failed to authenticate user 'elastic' against http://127.0.0.1:9200/_xpack/security/_authenticate?pretty
Possible causes include:

• The password for the 'elastic' user has already been changed on this cluster
• Your elasticsearch node is running against a different keystore
  This tool used the keystore at /Path to elasticsearch-6.3.0/config/elasticsearch.keystore

So I referred this thread....

I lost the password that has been changed

Note: These instructions are quite old. Newer instructions are available here X-Pack Authentication issue It is possible to reset the elastic user password (see below) but from your description, it doesn't sound like this is necessarily what you need. The elastic user is a superuser. We don't recommend using it for any purpose other than administering the system. In particular, Kibana should not connect to Elasticsearch using the elastic user - by default it uses the kibana user, so the p…

Then created another user and tried to reset the password for elastic user as shown below:

curl -u my_admin -XPUT 'http://localhost:9200/_xpack/security/user/elastic/_password?pretty' -H 'Content-Type: application/json' -d'
{
"password" : "my_password"
}'
Enter host password for user 'my_admin':
{
"error" : {
"root_cause" : [
{
"type" : "cluster_block_exception",
"reason" : "blocked by: [FORBIDDEN/12/index read-only / allow delete (api)];"
}
],
"type" : "cluster_block_exception",
"reason" : "blocked by: [FORBIDDEN/12/index read-only / allow delete (api)];"
},
"status" : 403
}

How to fix it?

Thanks