Failed to Install and Configure Disaster Recovery Gateway When Process drm Exists But Port 7443 Is Not Listened

Check the available system entropy on the VM.

cat /proc/sys/kernel/random/entropy_avail

If the returned value is less than 500, install haveged to ensure that the available entropy meets the encryption program's requirements. Insufficient system entropy will result in blocked threads, slow listening on port 7443, or port 7443 not listened even if the drm process is installed.

Solution

Download and install haveged to supplement entropy for /dev/random.

View the entropy value and compare it with the initial value.

cat /proc/sys/kernel/random/entropy_avail