CentOS system administration essentials : become an efficient CentOS administrator by acquiring real-world knowledge of system setup and configuration

CentOS system administration essentials become an efficient CentOS administrator by acquiring real-world knowledge of system setup and configuration

Become an efficient CentOS administrator by acquiring real-world knowledge of system setup and configuration In Detail CentOS is widely respected as a very powerful and flexible Linux distribution, and it can be used as a web server, file server, FTP server, domain server, or a multirole solution. I...

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Detalles Bibliográficos
Otros Autores: Mallett, Andrew, author (author), Chucherko, Bartosz, cover designer (cover designer)
Formato: Libro electrónico
Idioma:Inglés
Publicado: Birmingham, England : Packt Publishing 2014.
Edición:1st edition
Colección:Community experience distilled.
Materias:
Linux.
Operating systems (Computers)
Ver en Biblioteca Universitat Ramon Llull:https://discovery.url.edu/permalink/34CSUC_URL/1im36ta/alma991009628614106719
Tabla de Contenidos:
  • Intro
  • CentOS System Administration Essentials
  • Table of Contents
  • CentOS System Administration Essentials
  • 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
  • Downloading the color images of this book
  • Errata
  • Piracy
  • Questions
  • 1. Taming vi
  • CLI trickery - shortcuts that you will love
  • Vim and vi
  • Getting the .vimrc setup the way you like
  • Search and replace
  • Learning to remove extraneous comments from a file with a few deft key strokes
  • Summary
  • 2. Cold Starts
  • The GRUB and MBR
  • When is the root filesystem not the root filesystem?
  • Editing stanzas in GRUB
  • Adding a root entry to a stanza
  • Adding a kernel entry to a stanza
  • Adding an initrd entry to a stanza
  • Working on the GRUB console
  • Protecting the GRUB menu with passwords
  • Boot splashing with plymouth
  • Applying different themes
  • Summary
  • 3. CentOS Filesystems - A Deeper Look
  • A magician's secret
  • Hard links
  • Symbolic links
  • Special permissions
  • The SUID bit
  • The SGID bit
  • The sticky bit
  • Naming your pipes
  • Understanding the command stat
  • The last access time
  • The last modified time
  • The last changed time
  • Enterprise filesystem shootout
  • What BTRFS has to offer
  • Installing BTRFS
  • Creating a BTRFS filesystem
  • Expanding a BTRFS filesystem
  • Volume management with BTRFS
  • Balancing the filesystem
  • Adding an entry to /etc/fstab
  • Creating an RAID1 mirror
  • Using BTRFS snapshots
  • Summary
  • 4. YUM - Software Never Looked So Good
  • Managing software installation with RPM files
  • Creating your own RPM file.
  • Creating the Plymouth theme
  • tup.plymouth
  • tup.script
  • Creating the theme RPM
  • Using YUM
  • YUM plugins
  • Creating a YUM Repository
  • /etc/yum.repos.d/
  • Summary
  • 5. Herding Cats - Taking Control of Processes
  • Managing services with Upstart
  • Creating your own Upstart script
  • Managing processes
  • Using the pgrep command
  • Using the pstree command
  • Using the pkill command
  • Using the pmap command
  • Summary
  • 6. Users - Do We Really Want Them?
  • Managing public and private groups
  • Linux groups
  • Adding users to groups
  • Evaluating private group usage
  • Getent
  • Quotas
  • Setting quotas
  • Scripting user creation
  • Summary
  • 7. LDAP - A Better Type of User
  • LDAP concepts
  • Installing 389-ds
  • Configuring DNS or hostname records
  • Setting TCP keepalives
  • Setting file descriptors
  • Creating the directory server user and group
  • The EPEL repository
  • Installing and configuring 389-ds
  • Testing the installation
  • LDAP user account management
  • Adding users using the GUI console
  • Adding users from the command line
  • LDAP authentication
  • Summary
  • 8. Nginx - Deploying a Performance-centric Web Server
  • Installing and configuring Nginx
  • Installing Nginx
  • Configuring Nginx
  • Configuring a 404 Document Not Found Error page
  • Installing PHP
  • Installing MySQL
  • Create dynamic web content
  • Summary
  • 9. Puppet - Now You Are the Puppet Master
  • Installing the Puppet master
  • Configuring the firewall
  • DNS
  • Network Time Protocol
  • The Puppet lab repository
  • Puppet resource
  • Managing packages, services, and files
  • Classes
  • Resource definition
  • Puppet facts
  • Using include
  • Creating and testing manifests
  • Enrolling remote puppet agents
  • Summary
  • 10. Security Central
  • Understanding PAM configuration files
  • Type
  • Control
  • The module path
  • Module arguments
  • Limits of PAM.
  • Domain
  • Type
  • Item
  • SELinux
  • Reading the current SELinux mode
  • Setting the SELinux mode
  • Preventing mode changes from the command line
  • Understanding SELinux contexts
  • Troubleshooting SELinux
  • Hardening Linux
  • Password auditing
  • Preparing a password file
  • Cracking passwords
  • Weakening the algorithm
  • Hardening the password
  • Summary
  • 11. Graduation Day
  • Securing remote access to your system
  • The SSH public key
  • Analyzing the risks of default settings
  • Populating the keystore
  • Public key authentication
  • Root logins
  • Conclusion
  • Best practices of OpenLDAP
  • Best practices of Nginx
  • Mastering Puppet
  • What's new in CentOS 7
  • Locale
  • Time and date information
  • Managing services
  • Additional ways to repair your machine than just using the single user mode
  • Remote management
  • Systemd and nonstandard subcommands
  • The Samba 4.1 package
  • Filesystem changes
  • Password policies
  • Summary
  • Index.

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