CentOS 6 Linux Server Cookbook. An all-in-one guide to installing, configuring, and running a Centos 6 server. Ideal for newbies and old-hands alike,

CentOS 6 Linux Server Cookbook. An all-in-one guide to installing, configuring, and running a Centos 6 server. Ideal for newbies and old-hands alike, - Opis

CentOS is a community-based enterprise class operating system and this book will provide a series of practical solutions that will not only show you how to install and maintain CentOS as a server, but to explore this well-known Linux distribution with the intention of tackling many common issues by providing some tricks of the trade in order to simplify the task of building a server.CentOS 6 Linux Server Cookbook is a practical guide to installation, configuration, administration, and maintenance. This is a one-stop-shop to all things CentOS, so regardless as to whether you need a mail server, web server, database server, domain server or a file sharing platform, this book provides a comprehensive series of starting points that will give you direct access to the inner workings of this open source, community-based enterprise server.CentOS 6 Linux Server Cookbook is a practical guide to the complete installation, configuration, administration, and maintenance of one of the world's most popular community-based enterprise servers.From installation to configuration, this book of recipes will take you on a journey to explore inner workings of CentOS server. Within this book you will learn how to install CentOS in variety of settings, enhance your installation with the correct tools of the trade and prepare your server to fulfil almost any role you could ever need.By discovering more about time, networking, package management, system management and security, this book will serve to show you how to get the very best from this freely available, open source server by presenting a (...) więcej series of solutions that will enable you to master the art of building your very own web, database, mail, domain name, file sharing services.CentOS 6 Linux Server Cookbook is a hands-on approach to installing, configuring and managing this ever popular community based enterprise server. By taking you from installation to customization this book will serve all Linux professionals and enthusiasts alike by providing you with a practical guide to using CentOS as a world-class server solution that is capable of delivering your mail, web, ftp, domain and file sharing services. Spis treści:
CentOS 6 Linux Server Cookbook
Table of Contents
CentOS 6 Linux Server Cookbook
Credits
About the Author
About the Reviewers
www.PacktPub.com
Support files, eBooks, discount offers and more
Why Subscribe?
Free Access for Packt account holders
Preface
What this book covers
What you need for this book
Who this book is for
Conventions
Reader feedback
Customer support
Errata
Piracy
Questions
1. Installing CentOS
Introduction
Downloading CentOS and confirming the checksum on a Windows desktop
Getting ready
How to do it...
How it works
See also
Performing an installation of CentOS using the graphical installer
Getting ready
How to do it...
How it works
See also
Running a netinstall over HTTP
Getting ready
How to do it...
How it works...
See also
Installing CentOS in Text Mode and building a minimal installation
Getting ready
How to do it...
How it works...
See also
Re-installing the boot loader
Getting ready
How to do it...
How it works...
Updating the installation and enhancing the minimal install with additional administration and development tools
Getting ready
How to do it...
How it works...
See also
Finishing the installation process with Firstboot
Getting ready
How to do it...
How it works...
Theres more...
Adding the GNOME desktop environment, changing the runlevel, and installing additional software
Getting ready
How to do it...
How it works...
2. Configuring CentOS
Introduction
Changing the time zone and updating the hardware clock
Getting ready
How to do it...
How it works...
There's more...
Linking time and location
Synchronizing the system clock with NTP
Getting ready
How to do it...
How it works...
There's more...
Synchronizing multiple machines
Modifying the logfile's location
Fudging time
See also
Setting a static IP address
Getting ready
How to do it...
How it works...
There's more...
Substituting the Netmask value with a prefix
Finding your HWADDR/MAC address
Binding multiple IP addresses to a single Ethernet device
Getting ready
How to do it...
How it works...
There's more...
Bonding two Ethernet devices to increase bandwidth and provide redundancy
Getting ready
How to do it...
How it works...
There's more...
Changing the hostname and resolving a fully qualified domain name
Getting ready
How to do it...
How it works...
There's more...
Switching SELinux off
Getting ready
How to do it...
How it works...
See also
Disabling the IPv6 module
Getting ready
How to do it...
How it works...
There's more...
3. Working with CentOS
Introduction
Creating an administrative user and becoming root with the switch user command
Getting ready
How to do it...
How it works...
There's more...
Introducing mailx and forwarding the root's e-mail to an external e-mail address
Getting ready
How to do it...
How it works...
There's more...
Automating tasks with cron
Getting ready
How to do it...
How it works...
There's more...
See also
Synchronizing files and directories with rsync and working towards a full system backup with cron
Getting ready
How to do it...
How it works...
There's more...
See also
Issuing customized e-mail reports with Mutt
Getting ready
How to do it...
How it works...
There's more...
See also
Using logrotate to manage logfiles
Getting ready
How to do it...
How it works...
There's more...
Extending log rotation by adding NTP to logrotate
Getting ready
How to do it...
How it works...
Using chkconfig to enable a custom service at boot
Getting ready
How to do it...
How it works...
There's more...
Evaluating current memory usage with the free and top commands and clearing the memory cache
Getting ready
How to do it...
How it works...
There's more...
4. Managing Packages with Yum
Introduction
Updating the system with YUM
Getting ready
How to do it...
How it works...
There's more...
See also
Cleaning the YUM cache
Getting ready
How to do it...
How it works...
There's more...
See also
Automating Yum updates with Yum-cron
Getting ready
How to do it...
How it works...
See also
Installing packages with YUM
Getting ready
How to do it...
How it works...
There's more...
See also
Removing packages with YUM
Getting ready
How to do it...
How it works...
There's more...
See also
Finding packages with YUM
Getting ready
How to do it...
How it works...
There's more...
See also
Installing Yum Priorities to support additional repositories
Getting ready
How to do it...
How it works...
See also
Enhancing CentOS with the EPEL and Remi repositories
Getting ready
How to do it...
How it works...
See also
5. Securing CentOS
Introduction
Escalating user privilege with sudo
Getting ready
How to do it...
How it works...
There's more...
Change the default timeout
Hardening the secure shell environment
Getting ready
How to do it...
How it works...
There's more...
Changing the SSH port number of your server
Limiting SSH access by user or group
See also
Configuring a firewall and working with IPTables
Getting ready
How to do it...
How it works...
There's more...
Allowing an IP address
Banning an IP address
See also
Protecting SSH with fail2ban
Getting ready
How to do it...
How it works...
There's more...
See also
Preventing dictionary-based attacks with DenyHosts
Getting ready
How to do it...
How it works...
There's more...
Unblocking an IP address
See also
Running antivirus scans with ClamAV
Getting ready
How to do it...
How it works...
There's more...
See also...
6. Working with Samba
Introduction
Configuring Samba as a standalone server and enabling home directories
Getting ready
How to do it...
How it works...
There's more...
Disable printing support in Samba
Relaxing the rules for SELinux
Opening the firewall
Assigning the master browser
See also
Adding, deleting, and disabling a Samba user
Getting ready
How to do it...
How it works...
There's more...
Providing a network recycle bin for Samba
Getting ready
How to do it...
How it works...
There's more...
Hiding folders and files with Samba
Getting ready
How to do it...
How it works...
There's more...
Creating a custom share folder for a specific user or a group of users
Getting ready
How to do it...
How it works...
There's more...
Controlling access and enabling a write list for specific users or groups
Enabling guest-only access to a custom share folder
See also
7. Working with Domains
Introduction
Building a caching-only nameserver with BIND
Getting ready
How to do it...
How it works...
There's more...
Enabling access to a DNS server from behind a firewall
Cleaning expired records
See also
Writing zone files for BIND
Getting ready
How to do it...
How it works...
See also
Adding zones to BIND and configuring a nameserver
Getting ready
How to do it...
How it works...
There's more...
See also
Deploying a local nameserver with dnsmasq
Getting ready
How to do it...
How it works...
See also
Logging events with dnsmasq and combining this with logrotate
Getting ready
How to do it...
How it works...
See also
Enabling domain name wildcards with dnsmasq
Getting ready
How to do it...
How it works...
See also
Hardening BIND with chroot and providing better security measures
Getting ready
How to do it...
How it works...
See also
8. Working with Databases
Introduction
Installing and hardening MySQL server with mysql_secure_installation
Getting ready
How to do it...
How it works...
There's more...
See also
Creating a MySQL database, adding a MySQL user, and assigning user privilege from the command line
Getting ready
How to do it...
How it works...
There's more...
Reviewing and revoking permissions or dropping a user
See also
Installing PostgreSQL, adding a user, and creating your first database
Getting ready
How to do it...
How it works...
There's more...
Connecting to PostgreSQL
Accessing a PostgreSQL database using psql
Creating a copy of a database in PostgreSQL
See also
Configuring remote access to PostgreSQL
Getting ready
How to do it...
How it works...
See also
9. Providing Mail Services
Introduction
Enabling a domain-wide Mail Transport Agent (MTA) and testing your SMTP configuration with Telnet
Getting ready
How to do it...
How it works...
There's more...
See also
Building a local POP3/SMTP server with Postfix and Dovecot
Getting ready
How to do it...
How it works...
There's more...
Setting up e-mail software
See also
Closing the open relay, enabling SMTP authentication and dealing with Spam by configuring SASL, and enabling Postfix header and body checks
Getting ready
How to do it...
How it works...
There's more...
Setting up e-mail software with SMTP authentication
See also
Using Postfix and Dovecot to serve e-mails across virtual domains
Getting ready
How to do it...
How it works...
There's more...
Setting up a catch-all e-mail address for a virtual domain
See also
10. Working with Apache
Introduction
Installing the Apache web server with CGI/Perl, PHP, configuring mod_perl, and preparing httpd for a production environment
Getting ready
How to do it...
How it works...
There's more...
Running a CGI/Perl script
Activating ModPerl::PerlRun
See also
Adding a secure connection to the Apache web server by creating a self-signed SSL certificate using OpenSSL
Getting ready
How to do it...
How it works...
See also
Hosting peers by enabling user directories on the Apache web server and troubleshooting suexec
Getting ready
How to do it...
How it works...
There's more...
Reinstating suexec
See also
Configuring Apache name-based virtual hosting
Getting ready
How to do it...
How it works...
There's more...
See also
Working with publishing directories, vhosts.d, error documents, directives, and the rewrite rule for virtual hosting with the Apache web server
Getting ready
How to do it...
How it works...
See also
11. Working with FTP
Introduction
Building a basic FTP service by installing and configuring VSFTP
Getting ready
How to do it...
How it works...
There's more...
Changing the default time-out
Banning a user from the FTP service
Customizing the banner
See also
Providing a secure connection to VSFTP with SSL/TLS using OpenSSL encryption
Getting ready
How to do it...
How it works...
See also
Implementing virtual users and directories in standalone mode on VSFTP
Getting ready
How to do it...
How it works...
There's more...
Providing an anonymous upload and download or download only FTP server with VSFTP
Getting ready
How to do it...
How it works...
There's more...
Index O autorze: Jonathan is a web developer, systems engineer and applications programmer, who, for more than 20 years has been working behind the scenes to support companies, organizations and individuals around the world to realize their digital ambitions. With an honors degree in both English and History and as a respected practitioner of many computer languages Jonathan enjoys writing code, publishing articles, building computers, playing the video games and getting 'out and about' in the big outdoors. He has been using CentOS since its inception and over the years, it has not only earned his trust, but it has become his first choice server solution. CentOS is a first class community based enterprise class operating system, it is a pleasure to work with, and because of this Jonathan has written this book in order that his knowledge and experience can be passed on to others. mniej