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Using NodeJS App with Apache

How setting Apache2 using proxy for expose a NodeJS app.

First install apache2:

apt update

apt install apache2

install nodejs e npm

apt install nodejs

apt install npm

copy your app in /var/www/demo

here a repo to my demo app if you want use it:

install pm2

npm install -g pm2

we use pm2 for start a daemon of our app, and for enable an autostart in case of reboot of our machine.

from your terminal go into the root folder of the app

cd /var/www/demo

and launch the command:

pm2 start app.js

after that we must config an automatic start in case of reboot:

so launch this command:

pm2 startup systemd

and copy the env that will be print and paste it in the terminal, in my case is this:

sudo env PATH=$PATH:/usr/bin /usr/local/lib/node_modules/pm2/bin/pm2 startup systemd -u pierangelo — hp /home/pierangelo

now we go to settings apache2
as first things we must enable two modules:



so from terminal launch this:

a2enmod proxy

a2enmod proxy_http

after that go in /etc/sites/available and create a file named myapp.conf


<VirtualHost *:80>
 ProxyPreserveHost on
 ProxyPass / http://localhost:3000/
 ProxyPassReverse / http://localhost:3000/
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check carefully, in ProxyPass and ProxyPassReverse you mast show the localhost with the port that you use in your nodejs app.

after that enable your virtualhost:

a2ensite myapp.conf

and restart apache2

service apache2 restart

now you should see your app running on your domain address.

Vedi Tutorial Here

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