The KM will talk about OBM Entropy which is used when establishing SSL connections - on older Linux versions, and should one install rng-tools or haveged? Operations Bridge Manager (OBM) 23.4 onwards

Environment

Operations Bridge Manager (OBM) 23.4 onwards

Situation

OBM consistently uses SSL for its operations.  For example, when running the command ovpolicy -list, the getrandom system call is invoked 1,028 times because ovpolicy makes a network call via ::1 (the loopback address).   OBM needs systems with high entropy values - the OBM installation script checks for entropy values of 1000 or greater.

One can check the systems value:

# cat /proc/sys/kernel/random/entropy_avail

Why is the important?  Entropy which is used when establishing SSL connections. If it takes a long time for the SSL connection to be established (e.g. with newer OBM versions), this can slow down on older Linux versions, should one install rng-tools or haveged?

For resolution, read the complete knowledge article