There are numerous configuration flags, G-Flags in YugabyteDB, which allow you to fine tune the core database services yb-tserver and yb-master. Several examples include use_node_to_node_encryption, yb_num_shards_per_tserver and client_read_write_timeout_ms.
To quickly view the values for all of your G-Flags, you can browse the T-Server and Master Web Pages.