Network management, hosting, sharing, hotspots
Sharing WiFi over Ethernet
Your PC / laptop is online via WiFi and you want to share connectivity via the ethernet cable.
Type in the terminal:
- select the ethernet connection
- click the cog wheel at the bottom (settings)
- select the tab IPv4
- select in the pulldown the method: “shared to other computers”.
- Hit Save - and DHCP should be available over the ethernet cable to another machine
List all IP addresses used on a network
To list all IP addresses used on a WiFi network, this will scan the possible IP addresses from
nmap -sn 192.168.178.*
-snoption tells Nmap not to do a port scan after host discovery, and only print out the available hosts that responded to the scan.
sudo apt-get install nmap
Certbot for https
certbot --apache -d halb-so-schwer.de -d www.halb-so-schwer.de
To obtain a new or tweaked version of this certificate in the future, simply run certbot again with the “certonly” option. To non-interactively renew all of your certificates, run “certbot renew”.