Backup Copy Job to the Linux Repository Fails with "No connection could be made because the target machine actively refused it xx.xx.xx.xx:2500"

Challenge

You are running several Backup Copy jobs to the linux repository simultaneously and they fail with error "No connection could be made because the target machine actively refused it xx.xx.xx.xx:2500".

Cause

You have reached the limit of simultaneously opened SSH sessions.

Solution

You may increase the limit of SSH connections on the linux repository by changing etc/ssh/sshd_conf settings:

ClientAliveInterval 30
TCPKeepAlive yes
ClientAliveCountMax 99999
MaxSessions 200
MaxStartups 100:30:200