Google Cloud

Install Apache on Debian 9 – Google Cloud

Install Apache on Debian 9 – Google Cloud. Apache is the most widely used HTTP web server which provides dynamic loading modules, easily integrating with other applications.

Not using Debian 9? Choose a different OS:

This guide helps you to install Apache on Debian 9 on Google Compute Engine.

Prerequisites

  1. Your Compute Engine Instance running.
  2. For setting up Compute Engine, see the Setting up Compute Engine Instance with Debian 9.
  3. Debian 9 server setup on Google Cloud.

Install Apache

Let’s start by updating the local package index with the following command.

sudo apt update

Install Apache 2 package from the Ubuntu repository.

sudo apt install apache2

This will install apache2 and all required dependencies.

Setup Firewall

If your server is protected by Firewall (UFW) with Apache to allow public access on default web ports for HTTP and HTTPS

sudo ufw app list

You will see all listed applications.

Output
Available applications:
AIM
Bonjour
CIFS
DNS
. . .
WWW
WWW Cache
WWW Full
WWW Secure
. . .
  • WWW: This profile opens only port 80 (normal, unencrypted web traffic)
  • WWW Cache: This profile opens only port 8080 (sometimes used for caching and web proxies)
  • WWW Full: This profile opens both port 80 (normal, unencrypted web traffic) and port 443 (TLS/SSL encrypted traffic)
  • WWW Secure: This profile opens only port 443 (TLS/SSL encrypted traffic)

You need to enable the most restrictive profile that will still allow the traffic you’ve configured. Now we will enable WWW Full.

sudo ufw allow 'WWW Full'

With this command you can view the status of UFW.

sudo ufw status

You will see the output as follows.

Output
Status: active
To Action From
-- ------ ----
WWW Full ALLOW Anywhere
OpenSSH ALLOW Anywhere
WWW Full (v6) ALLOW Anywhere (v6)
OpenSSH (v6) ALLOW Anywhere (v6)

Check Apache Installation

Once Apache is installed is is started automatically and already be up and running.

Every process in Apache is managed with the systemctl command. Check the status of Apache with the following command.

sudo systemctl status apache2
Output
● apache2.service - The Apache HTTP Server
Loaded: loaded (/lib/systemd/system/apache2.service; enabled; vendor preset: enabled)
Active: active (running) since Thu 2019-02-14 05:17:04 UTC; 6min ago
Main PID: 2080 (apache2)
Tasks: 55 (limit: 4915)
CGroup: /system.slice/apache2.service
├─2080 /usr/sbin/apache2 -k start
├─2082 /usr/sbin/apache2 -k start
└─2083 /usr/sbin/apache2 -k start
Feb 14 05:17:04 instance-1 systemd[1]: Starting The Apache HTTP Server…
Feb 14 05:17:04 instance-1 systemd[1]: Started The Apache HTTP Server.

Now visit the External IP address of your VM instance, you will see the default Apache welcome page.

Verify Apache installation on Debian 9

Apache Commands

To start Apache web server.

sudo systemctl start apache2

To stop Apache webserver.

sudo systemctl stop apache2

To restart Apache web server.

sudo systemctl restart apache2

To reload Apache without dropping connections.

sudo systemctl reload apache2

To disable Apache.

sudo systemctl disable apache2

To enable Apache.

sudo systemctl enable apache2

Now Apache is installed on Debian 9 – Google Cloud and configured with Firewall.

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