Network (Lan) scanner like Advanced Ip Scanner

 The first place is Advanced IP Scanner

but

Here is more advanced alternatives:

Wireshark · Go Deep

Home | TCPDUMP & LIBPCAP

Is there a shortcut to put Mac to sleep?

Is there a shortcut to put Mac to sleep?

On my way to understand and make familiar for me a MacOS I use to search how to use DEFAULT shortcuts in Mac OS. It is easy to me to use the others Macs and don't change its settings. 

LogOff from Mac like WIN+D in Windows:

CTRL+command+Q

Put Mac to sleep (to turn off the screen) 

CTRL+Command+Q and then ESC(escape)