What type of connection is recommended to limit during PSMP networking hardening?

The recommended connection type to limit during PSMP (Privileged Session Manager Proxy) networking hardening is SSH connections. This is because SSH (Secure Shell) is a commonly used protocol for secure remote administration of systems. While SSH is essential for secure communication, it can also pose a significant risk if improperly secured or monitored.

In the context of PSMP, limiting SSH connections helps enhance security by minimizing the vectors through which unauthorized access can occur. By restricting SSH access, organizations can better control who is able to establish a privileged session and ensure that only trusted users and systems have that capability.

While other types of connections may also need to be secured or managed, the focus on SSH reflects the importance of controlling privileged access, as SSH is often targeted by attackers seeking to gain unauthorized control over devices and systems. Thus, hardening measures such as limiting SSH connections play a crucial role in safeguarding the organization's assets and sensitive information.