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Topic: How To Install the Apache Web Server on Ubuntu 16.04 LTS |
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| How To Install the Apache Web Server on Ubuntu 16.04 LTS |
Step 1: Install Apache
$ sudo apt-get update
$ sudo apt-get install apache2
Where are Apache Web Server files stored?
html
/var/www/html <-- default
conf
/etc/apache2/
|-- apache2.conf
| `-- ports.conf
|-- mods-enabled
| |-- *.load
| `-- *.conf
|-- conf-enabled
| `-- *.conf
|-- sites-enabled
| `-- *.conf
log
/var/log/apache2/access.log
/var/log/apache2/error.log
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| Step 2: Check your Apache Web Server |
At the end of the installation process, the system should have started Apache web server and it should already be up and running on port 80
You can check it form server side by:
$ sudo systemctl status apache2
● apache2.service - LSB: Apache2 web server
Loaded: loaded (/etc/init.d/apache2; bad; vendor preset: enabled)
Drop-In: /lib/systemd/system/apache2.service.d
└─apache2-systemd.conf
Active: active (running) since Tue 2017-10-31 17:38:33 PDT; 19h ago
Docs: man:systemd-sysv-generator(8)
CGroup: /system.slice/apache2.service
├─3329 /usr/sbin/apache2 -k start
├─3332 /usr/sbin/apache2 -k start
└─3333 /usr/sbin/apache2 -k start
or
$ netstat -tuln | grep 80
tcp6 0 0 127.0.0.1:8005 :::* LISTEN
tcp6 0 0 :::8009 :::* LISTEN
tcp6 0 0 :::8080 :::* LISTEN
tcp6 0 0 :::80 :::* LISTEN
You can also check it from client side by:
http://<your-machine-ip>/
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| Step 3: Adjust Firewall -- optional |
By defaut, the Firewall is inatcive and hence the Apache web server can be accessed from outside.
$ sudo ufw status
Status: inactive
If the firewall is actived. You must instruct your firewall to allow Apache web service to be accessible.
We can first list the ufw application profiles by:
$ sudo ufw app list
Available applications:
Apache
Apache Full
Apache Secure
OpenSSH
Then allow 'Apache Full'
$ sudo ufw allow 'Apache Full'
Now you should see:
$ sudo ufw status
Status: active
To Action From
-- ------ ----
Apache Full ALLOW Anywhere
OpenSSH ALLOW Anywhere
Apache Full (v6) ALLOW Anywhere (v6)
OpenSSH (v6) ALLOW Anywhere (v6)
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| Step 4: Manage your Apache Web Server |
Basic commands
$ sudo systemctl stop apache2 == /etc/init.d/apache2 stop
$ sudo systemctl start apache2 == /etc/init.d/apache2 start
$ sudo systemctl restart apache2 == /etc/init.d/apache2 restart
$ sudo systemctl reload apache2 -- soft-restart after config change without dropping connections
By default, the Apache web server can survive the machine reboot. That means whenever the machine starts the Apache web server is up and running. If you do not want this default behavior, you can disable it by
$ sudo systemctl disable apache2
Later on, you can always turn it back by:
$ sudo systemctl enable apache2
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posted on: 11/01/2017 08:45:31 PM
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