Create /etc/hosts.deny (Not Scored)
The /etc/hosts.deny file specifies which IP addresses are not permitted to connect to the host. It is intended to be used in conjunction with the /etc/hosts.allow file.
The Stream Control Transmission Protocol (SCTP) is a transport layer protocol used to support message oriented communication, with several streams of messages in one connection. It serves a similar function as TCP and UDP, incorporating features of both. It is message-oriented like UDP, and ensures reliable in-sequence transport of messages with congestion control like TCP.
Make the Audit Configuration Immutable
"Set system audit so that audit rules cannot be modified with auditctl. Setting the flag ""-e 2"" forces audit to be put in immutable mode. Audit changes can only be made on system reboot."