Book Image

Linux Networking Cookbook

By : Agnello Dsouza, Gregory Boyce
5 (1)
Book Image

Linux Networking Cookbook

5 (1)
By: Agnello Dsouza, Gregory Boyce

Overview of this book

Linux can be configured as a networked workstation, a DNS server, a mail server, a firewall, a gateway router, and many other things. These are all part of administration tasks, hence network administration is one of the main tasks of Linux system administration. By knowing how to configure system network interfaces in a reliable and optimal manner, Linux administrators can deploy and configure several network services including file, web, mail, and servers while working in large enterprise environments. Starting with a simple Linux router that passes traffic between two private networks, you will see how to enable NAT on the router in order to allow Internet access from the network, and will also enable DHCP on the network to ease configuration of client systems. You will then move on to configuring your own DNS server on your local network using bind9 and tying it into your DHCP server to allow automatic configuration of local hostnames. You will then future enable your network by setting up IPv6 via tunnel providers. Moving on, we’ll configure Samba to centralize authentication for your network services; we will also configure Linux client to leverage it for authentication, and set up a RADIUS server that uses the directory server for authentication. Toward the end, you will have a network with a number of services running on it, and will implement monitoring in order to detect problems as they occur.
Table of Contents (19 chapters)
Linux Networking Cookbook
About the Author
About the Reviewer

Setting up PHP using an Apache module

PHP is a very common programming language to use on Apache webserver, largely due to its ease of use. Luckily this also equates to being very easy to install on most distributions as well.

How to do it…

Setting up PHP on Ubuntu 14.04:

  1. Install PHP's apache module:

    sudo apt-get install libapache2-mod-php5
  2. Ubuntu's package should enable the module by default, but you can test it to be sure by running a2query -m php5. If it is not enabled, it may be enabled by running a2enmod php5.

Setting up PHP on CentOS 7:

  1. Install PHP, including the Apache module.

    sudo yum install php
  2. CentOS also enables the module by default. In order to confirm that it is installed, look for /etc/httpd/conf.modules.d/10-php.conf. If you have difficulties executing PHP code, you may need to restart the Apache service with service httpd restart.

How it works…

The PHP module gets linked into the Apache application during startup, adding the capability to detect PHP web application code and process...