Disable other unused services

In addition to not using Telnet, OHMPI does not use Simple Mail Transfer Protocol (SMTP), Identification Protocol (identd), Simple Network Management Protocol (SNMP).

• Simple Mail Transfer Protocol (SMTP): This protocol is an Internet standard for E-mail transmission across Internet Protocol (IP) networks.
• Identification Protocol (identd): This protocol is generally used to identify the owner of a TCP connection on UNIX.
• Simple Network Management Protocol (SNMP): This protocol is a method for managing and reporting information about different systems.

Restricting these services or information does not affect the use of OHMPI. If you are not using these services for other applications, Oracle recommends that you disable these services to minimize your security exposure. If you need SMTP, identd, or SNMP for other applications, ensure that you upgrade to the latest version of the protocol to provide the most up-to-date security for your system.