UrBackup

• https://www.urbackup.org/faq.html
• https://urbackup.atlassian.net/wiki/spaces/US/pages/1441795/Restoring+Images+from+PXE
• https://www.urbackup.org/administration_manual.html#x1-140002.2.3
• https://www.urbackup.org/client_debian_ubuntu_install.html
• https://forums.urbackup.org/t/internet-client-setup-and-configuration/2490
• https://urbackup.atlassian.net/wiki/spaces/US/pages/66650118/How+To?focusedCommentId=66650125
• dattobd https://github.com/datto/dattobd/blob/master/INSTALL.md
• https://blog.stephane-huc.net/systeme/debian/urbackup_client_gui

iptables -A TCP -p tcp -m tcp --dport 35621 -m comment --comment "UrBackup requests" -j ACCEPT
iptables -A TCP -p tcp -m tcp --dport 35623 -m comment --comment "UrBackup commands" -j ACCEPT
iptables -A UDP -p udp -m udp --dport 35622 -m comment --comment "UrBackup Broadcast" -j ACCEPT 

Source: https://www.marksanborn.net/howto/make-a-backup-image-of-your-hard-drive-with-dd/

OKL Backup dd if=/dev/sda ibs=4096 | gzip > partition.image.gz conv=noerror

OKL Restore dd if=partition.image.gz | gunzip | dd of=/dev/sdba