Installing Koha 23.05 on ubuntu

apt update

sudo apt-get -y install sudo wget gnupg

wget -q -O- https://debian.koha-community.org/koha/gpg.asc | sudo apt-key add -
sudo apt-get update
echo 'deb http://debian.koha-community.org/koha stable main' | sudo tee /etc/apt/sources.list.d/koha.list    
sudo apt-get update
sudo apt-get install koha-common
sudo apt-get install mysql-server 
sudo nano /etc/apache2/ports.conf
change INTRAPORT to 8080
Listen 80
Listen <staff interface port number> i.e. 8080
sudo nano /etc/koha/koha-sites.conf
sudo a2enmod rewrite 
sudo a2enmod cgi 
sudo service apache2 restart
sudo service apache2 restart 
sudo koha-create --create-db library
sudo nano /etc/apache2/sites-enabled/000-default.conf
sudo service apache2 restart 
To Know the koha_library password
sudo koha-passwd library
http://IP-Domain name:8080 (staff)
http://IP-Domain (OPAC)