how to use hyper-v






main host really machine systeminfo
windows 11 pro insider preview 22h2
intel(r) i3-7100








# default setting: you can ping host computer from virtual machine,
# you cannot ping hyper-v computer form physical device
# so you need to create a switch








hyper-v management
    virtual switch setting
	    creat a new virtual switch
		    outside
			default all
			confirm
			







download fedora38 iso file
https://download.fedoraproject.org/pub/fedora/linux/releases/38/Workstation/x86_64/iso/Fedora-Workstation-Live-x86_64-38-1.6.iso




quick create virtual machine
    local install source
	    not enable windows secure boot
		change setup source
		select fedora38.iso file
		install
		done
		

open fedora38
    open wired setting 
	ipv4 manual
	    172.xxx.xxx.xxx
		255.xxx.xxx.xxx
		172.xxx.xxx.xxx
		
		dns
		8.8.8.8
		
	done
	



install docker
https://docs.docker.com/engine/install/fedora/
	sudo dnf -y install dnf-plugins-core
	sudo dnf config-manager --add-repo https://download.docker.com/linux/fedora/docker-ce.repo
	sudo dnf install docker-ce docker-ce-cli containerd.io docker-buildx-plugin docker-compose-plugin
	
start docker
	sudo systemctl start docker

verify docker
	sudo docker run hello-world
	





install kodbox
https://github.com/KodCloud-dev/docker
	docker run -d -p 80:80 kodcloud/kodbox
	docker run -d -p 80:80 -v ./:/var/www/html kodcloud/kodbox
	




open guest machine(virtual systemctl) browser firefox, input ip
	172.xxx.xxx.xxx
	saw kodbox setup page
	done
	


open host machine(really systemctl) browser, input ip
	172.xxx.xxx.xxx
	not saw kodbox setup page
	close virtual systemctl firewall
		sudo service firewalld stop
	
	saw kodbox setup page
	done
	





review
if you have problem, 
trying these wildly repeat:
    sudo service docker restart
    sudo service firewalld stop
    sudo service firewalld start
	



Configure firewalld 
    sudo systemctl disable firewalld
    sudo systemctl stop firewalld.service
    sudo systemctl mask firewalld

    undo
    sudo systemctl enable firewalld	
	sudo systemctl start firewalld.service
	sudo systemctl unmask firewalld
	
	
	


Configure Docker to start on boot with systemd
    sudo systemctl enable docker.service
    sudo systemctl enable containerd.service
    
    undo
    sudo systemctl disable docker.service
    sudo systemctl disable containerd.service






then,
you used hyper-v
not hyper-v used you



















# fedora

ip a
# eth0: 
# 192.168.0.103


cmd.exe: 
ssh zhaoyatao@192.168.0.103
# ssh: connect to host 192.168.0.103 port 22: Connection refused



sudo systemctl status firewalld
sudo systemctl stop firewalld
sudo systemctl disable firewalld





ssh zhaoyatao@192.168.0.103
# ssh: connect to host 192.168.0.103 port 22: Connection refused
# aw?





# sudo service sshd start
# Redirecting to /bin/systemctl start sshd.service


sudo systemctl start sshd
# sudo systemctl enable sshd





done