The following transport layer protocols are a standard part of Oracle Solaris: Transmission Control Protocol (TCP), Stream Control Transmission Protocol (SCTP), and User Datagram Protocol (UDP). These protocols typically need no intervention to run properly. However, circumstances at your site might require you to log or modify services that run over these transport layer protocols. In this case, you must modify the profiles for these services by using Service Management Facility (SMF) commands.
The inetd daemon is responsible for starting standard Internet services when a system boots. These services include applications that use TCP, SCTP, or UDP as the transport layer protocol. You can modify the existing Internet services or add new services by using SMF commands.
Operations that involve transport layer protocols include the following:
Setting up a privileged port
Implementing traffic congestion control
Logging all incoming TCP connections
Adding services that run over a transport layer protocol, using SCTP as an example
Configuring the TCP wrappers facility for access control
Changing the TCP receive buffer size
For more information, see Modifying Services that are Controlled by inetd in Managing System Services in Oracle Solaris 11.2 and the inetd (1M) man page.