https://lists.samba.org/archive/samba/2015-June/thread.html#192519
https://wiki.archlinux.org/index.php/Samba/Active_Directory_domain_cont…
https://aur.archlinux.org/packages/samba-dhcpd-update/

samba-tool drs showrepl - Directory Replication Services (DRS) management. - Show replication status.

#Disable password expiration for the Administrator account.
samba-tool user setexpiry Administrator --noexpiry

#Show domain level password options.
samba-tool domain passwordsettings show

#Disable password complexity at the domain level.
samba-tool domain passwordsettings set --complexity=off

#Disable password history at the domain level.
samba-tool domain passwordsettings set --history-length=0

#Disable password min-age at the domain level.
samba-tool domain passwordsettings set --min-pwd-age=0

https://openwrt.org/toh/ubiquiti/litebeam_5ac_gen2
https://openwrt.org/toh/hwdata/ubiquiti/ubiquiti_litebeam_5ac_gen2

limpar toda a configuração dum router:
/system reset-configuration no-defaults=yes keep-users=no
https://forum.mikrotik.com/viewtopic.php?t=67840#p345275

exportar config do router:
export file=myrouterexport
https://forum.mikrotik.com/viewtopic.php?t=28959

https://wiki.mikrotik.com/wiki/Manual:Securing_Your_Router#MAC-Winbox

automatic login to HotSpot in Trial mode - https://forum.mikrotik.com/viewtopic.php?t=118643
https://forum.mikrotik.com/viewtopic.php?t=51199
bom vídeo, explicação simples - https://www.youtube.com/watch?v=FOrQUYtCjr4
https://wiki.mikrotik.com/wiki/Manual:Customizing_Hotspot#Examples

no server com a pool zfs:
apt install -y nfs-kernel-server
zfs set sharenfs=on pool-name/dataset-name

no servidor libertar as portas 111 e 2049

no cliente:
apt install -y nfs-common
mount -t nfs zfs.host.com:/pool-name/dataset-name /path/to/local/mount

NOTA: depois de reiniciar o servidor o serviço nfs-kernel-server não funciona. para reiniciar:
systemctl restart nfs-kernel-server

forma interessante de criar máquinas para correr software do windows num lxc

https://blog.raymond.burkholder.net/index.php?/archives/950-Gui-using-W…
https://www.reddit.com/r/LXD/comments/8gqzhg/running_a_desktop_environm…

for i in *.jpg ; do convert "$i" -density 300 "${i%.*}_conv.jpg" ; done - mudar a densidade para 300 ppp
jpegoptim --size=1000k *_conv.jpg - reduzir o tamanho para 1MB