Hi what do we pass here in domain

gateways:
    s3:
      domain_name: <http://s3.lakefs.example.com|s3.lakefs.example.com>

Hi @Fizza Abid, in this field you can configure a specific endpoint for the S3 gateway, (relevant if you have a DNS record for the S3 gateway). Regardless to what you configure, any S3 request to your lakeFS server will be handled by the S3 gateway.

is it necessary for connecting to s3?

No, it’s not