This chapter is a description of a list of services that the CentOS Linux system offers to its users. This description is a step-by-step explanation of how those services can be installed on CentOS 7 and how to configure them for best practice. We have talked about implementing a Gateway server, using Firewalld, inside a local network. Then we have established a VPN server, using OpenVPN, to have clients access the network from all around the world. After that, we have set up a DNS server using the BIND service. Then we have installed the essential packages to set up a fully running web server that can support a dynamic website with some tweaking to make it more secure, easy to manage, and extensible, using Apache and its modules, MariaDB and PHP. We moved to set up an FTP server to have clients access it to transfer data. And we have finished with securing both our web server and our FTP server using the OpenSSL self-signed certificates and keys.
We are not done yet with what CentOS...