Webserver with Loopback interface only

mkdir www
cd www

# create index web page and start server
echo "Hello" > index.html
busybox httpd -vf -p8888

# check connection with client
wget -qO- "http://127.0.0.1:8888"
wget -qO- "http://localhost:8888"
wget -qO- "http://192.168.1.158:8888"
brave "http://127.0.0.1:8888"
brave "http://localhost:8888"
brave "http://192.168.1.158:8888"

# create httpd webserver config file with restrictions
# busybox will look for httpd.conf in current directory
# or you can tell it to look for it in a set place
echo "A:127.0.0.1" > httpd.conf
echo 'D:*' >> httpd.conf
busybox httpd -vfc httpd.conf -p8888

# check connection with client
wget -qO- "http://127.0.0.1:8888"
wget -qO- "http://localhost:8888"
wget -qO- "http://192.168.1.158:8888"
brave "http://127.0.0.1:8888"
brave "http://localhost:8888"
brave "http://192.168.1.158:8888"