I have a recurring problem whereby a scheduled backup will fail (output shown below) but as soon as I get the email confirmation that the failure has occurred (i.e. within 1 minute) I can go and run the backup manually and it always runs successfully. Has anyone seen this behavior, or have any ideas what the cause of the SSH failure would be?
Backup failed! See the progress output above for the reason why. Total backup time was 00 minutes, 00 seconds. Virtual servers that failed : irbpassport.com passport.irbrugbyready.com dev.irbpassport.com passport.worldrugby.org dev.passport.worldrugby.org Sent by Virtualmin at: https://serverxxxxx.uk2net.com:10000 Failed to connect to SSH server : ssh_exchange_identification: Connection closed by remote host lost connection Deleting backups from /home/zbackupsfromirbpassportserver1/irbpassport.com/inc_%d-%m-%Y_%H-%M on SSH server irbpassportserver2.com older than 2 days .. .. failed to list directory via SSH : ssh_exchange_identification: Connection closed by remote host