In this post we will learn install the geoserver and postgis on ubuntu 18.04
sudo su
apt-get install openjdk-8-jre
apt-get install postgresql postgresql-contrib postgis postgresql-10-postgis-2.4
sudo -u postgres createuser -P geoserver
sudo -u postgres createdb -O geoserver geoserver
sudo -u postgres psql -c "CREATE EXTENSION postgis; CREATE EXTENSION postgis_topology;" geoserver
apt install unzip
mkdir -p /var/www/geoserver
cd /var/www/geoserver
wget https://netcologne.dl.sourceforge.net/project/geoserver/GeoServer/2.15.2/geoserver-2.15.2-bin.zip
unzip geoserver-2.15.2-bin.zip
mv geoserver-2.15.2/* .
echo "export GEOSERVER_HOME=/var/www/geoserver" >> ~/.profile
. ~/.profile
./bin/startup.sh
sudo sh /var/www/geoserver/bin/startup.sh
If you are on the server use http://IP:8080/geoserver/web
Default username and password is admin and geoserver