ssh through a router without port forwarding

 https://superuser.com/questions/595989

Ubuntu restart network manager with new settings

 sudo service network-manager restart

Kubuntu wifi stuck on 'waiting for authorization'

 if you have network-manager enabled :

sudo nmcli dev wifi 

to find your wifi ssid and

sudo nmcli dev wifi connect <your ssid> password <your pass>

https://askubuntu.com/questions/869955

Get the CPU temperature

 https://askubuntu.com/questions/15832/how-do-i-get-the-cpu-temperature

 

sudo apt-get install lm-sensors 

sudo sensors-detect

sudo service kmod start

sensors   

 

Kubuntu 18.04 run system settings from command line

$ systemsettings5

port forwarding for ssh

 https://askubuntu.com/questions/716184/how-to-ssh-into-a-server-running-on-a-home-network-behind-a-router