My computer does not have a wired network connection, it only has a WiFi card. In Windows 10 I can just click a button to turn my WiFi internet into a hotspot. As far as I can tell this is about the only feature in Windows 10 that I like. Can Ubuntu turn my WiFi connection into a hotspot? I read that if I had a wired network connection I could but I could not find anything on a WiFi connection. My laptop does not have a wired connection option at all that's why I'm wondering. I might be trying to do something that's not even possible.
You can use hostapd
sudo apt-get install hostapd
create the file /etc/hostapd/hostapd.conf with the follow content:
interface=wlan0 driver=nl80211 ssid=my_ap hw_mode=g channel=6 macaddr_acl=0 auth_algs=1 ignore_broadcast_ssid=0 wpa=3 wpa_passphrase=my_password wpa_key_mgmt=WPA-PSK wpa_pairwise=TKIP rsn_pairwise=CCMP
then execute :
sudo /usr/sbin/hostapd /etc/hostapd/hostapd.conf