https://www.skelleton.net/2015/06/14/how-to-built-a-fully-encrypted-fil…

depois de ter desativado a stack ipv6, aquando do início do serviço isc-dhcp-server este falhava invariavelmente com o seguinte erro:

Starting ISC DHCPv6 server: dhcpd6check syslog for diagnostics. ... failed!

para desativarmos o ipv6 neste serviço no ficheiro /etc/default/isc-dhcp-server alteramos as linhas relativas aos interfaces para:

INTERFACESv4=""
INTERFACESv6=

ATENÇÃO: em INTERFACESv6 depois do sinal de igual não há aspas!

https://electronics.stackexchange.com/questions/150513/extending-the-ba…

https://www.instructables.com/Make-your-computer-UPS-last-for-hours-ins…

https://forums.anandtech.com/threads/using-a-car-battery-with-an-apc-up…

pacman -Qdtq | pacman -Rs -
https://itsfoss.com/pacman-command/

https://alibaba-cloud.medium.com/how-to-setup-mariadb-master-and-slave-…
https://www.osradar.com/creating-a-database-replication-cluster-mariadb/
https://mariadb.com/kb/en/setting-up-replication/

https://www.tutorialspoint.com/mariadb/mariadb_transactions.htm
http://underpop.free.fr/m/mysql/teach-yourself/ch15lev1sec6.html

https://www.proxmox.com/en/training/video-tutorials/item/install-ceph-s…

https://www.sonassi.com/help/troubleshooting/setting-correct-mtu-for-op…

https://linuxhandbook.com/sigterm-vs-sigkill/