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  • Home
  • Networking
    • Networking Fundamentals
    • IPTables Advanced
    • NIC Bonding
    • NIC Aliasing
  • Security
    • Denyhosts
    • Fail2ban
    • Sudo – An Advanced Howto
    • Securing sshd
    • Restrict User Account To: cvs, scp, sftp, rsync Only With Centos
    • SSH Access Using Public / Private DSA Or RSA Keys
    • SELinux Common Commands & Troubleshooting
    • SELinux Module Building
    • Apache httpd with TLS/SSL/https
    • Installing & Configuring AIDE on Centos
  • Servers
    • Database
      • Installing & Configuring MySQL or MariaDB Server
      • Common Useful MySQL / MariaDB Commands
      • MySQL Database Replication
      • PHPMyAdmin On Centos
    • Mail
      • Postfix Mail Server On Centos
    • Web
      • Installing & Configuring suPHP
      • Installing & Configuring FastCGI + httpd-itk
      • Configuring Awstats – Multiple Domains Hosted On The Same Server
      • Installing & Configuring Nutch, Nutch-Gui, Sun JDK & Tomcat 6 On Centos
      • WordPress and PHP Handlers
      • Install OwnCloud on Centos
      • Moving WordPress
      • WordPress Development Server on localhost
      • Installing Zope/Plone v4.2.1 With The Unified Installer In Centos
      • Installing PHP 5.5x or 5.6x On Centos
    • Install OwnCloud on Centos
    • Installing & Configuring VSftpd
    • IM Proxying With Squid on Centos
    • Shrink A Default Install LVM PV To Create Another Partition
  • Desktops
    • Git Local WordPress Deployment
  • Resources
    • Commands
      • Linux System Commands
      • RPM Commands
      • Yum Commands
    • Docs
      • Understanding Users, Groups & Permissions
      • Understanding Files & Folders
      • Important Directories
      • Kernel Boot-time Parameters As Defined By Kernel.org
    • FAQs
      • Yum & RPM FAQ
      • Maximizing Help
      • Basic Grammar & Common Mistakes
    • Repos
    • Links
      • Google Datacenter: The Dalles, Oregon
    • Scripts & Tools
      • Color Picker Tool
      • A Basic Understanding Of screen On Centos
      • Basic Server Backup Script Using tar & bash
    • Troubleshooting
      • Am I Using Centos?
      • Maximizing Help
      • Examining Log Files
    • Pre Install Options
      • Installing Centos Using PXE Images
      • Installing CentOS 5 Via HTTP or FTP
    • Post Install Options
      • Adding Additional Hard Disk(s) Via Command Line
      • Becoming Root
      • Reset Forgotten Root Password
      • Changing Runlevels
      • Customizing The Grub System Bootloader
      • Installing Sun Java 32 bit browser plugin
      • Installing Sun Java 64 bit Browser Plugin
      • NTFS Read/Write Support With NTFS-3g
  • IRC
  • Contact
CentOS Help CentOS Help
  • Home
  • Networking
    • Networking Fundamentals
    • IPTables Advanced
    • NIC Bonding
    • NIC Aliasing
  • Security
    • Denyhosts
    • Fail2ban
    • Sudo – An Advanced Howto
    • Securing sshd
    • Restrict User Account To: cvs, scp, sftp, rsync Only With Centos
    • SSH Access Using Public / Private DSA Or RSA Keys
    • SELinux Common Commands & Troubleshooting
    • SELinux Module Building
    • Apache httpd with TLS/SSL/https
    • Installing & Configuring AIDE on Centos
  • Servers
    • Database
      • Installing & Configuring MySQL or MariaDB Server
      • Common Useful MySQL / MariaDB Commands
      • MySQL Database Replication
      • PHPMyAdmin On Centos
    • Mail
      • Postfix Mail Server On Centos
    • Web
      • Installing & Configuring suPHP
      • Installing & Configuring FastCGI + httpd-itk
      • Configuring Awstats – Multiple Domains Hosted On The Same Server
      • Installing & Configuring Nutch, Nutch-Gui, Sun JDK & Tomcat 6 On Centos
      • WordPress and PHP Handlers
      • Install OwnCloud on Centos
      • Moving WordPress
      • WordPress Development Server on localhost
      • Installing Zope/Plone v4.2.1 With The Unified Installer In Centos
      • Installing PHP 5.5x or 5.6x On Centos
    • Install OwnCloud on Centos
    • Installing & Configuring VSftpd
    • IM Proxying With Squid on Centos
    • Shrink A Default Install LVM PV To Create Another Partition
  • Desktops
    • Git Local WordPress Deployment
  • Resources
    • Commands
      • Linux System Commands
      • RPM Commands
      • Yum Commands
    • Docs
      • Understanding Users, Groups & Permissions
      • Understanding Files & Folders
      • Important Directories
      • Kernel Boot-time Parameters As Defined By Kernel.org
    • FAQs
      • Yum & RPM FAQ
      • Maximizing Help
      • Basic Grammar & Common Mistakes
    • Repos
    • Links
      • Google Datacenter: The Dalles, Oregon
    • Scripts & Tools
      • Color Picker Tool
      • A Basic Understanding Of screen On Centos
      • Basic Server Backup Script Using tar & bash
    • Troubleshooting
      • Am I Using Centos?
      • Maximizing Help
      • Examining Log Files
    • Pre Install Options
      • Installing Centos Using PXE Images
      • Installing CentOS 5 Via HTTP or FTP
    • Post Install Options
      • Adding Additional Hard Disk(s) Via Command Line
      • Becoming Root
      • Reset Forgotten Root Password
      • Changing Runlevels
      • Customizing The Grub System Bootloader
      • Installing Sun Java 32 bit browser plugin
      • Installing Sun Java 64 bit Browser Plugin
      • NTFS Read/Write Support With NTFS-3g
  • IRC
  • Contact

Welcome to

CentosHelp.org

CentosHelp.org is not affiliated with the official website of the Centos project. CentosHelp.org is currently focused on howtos and other resources to help you install, configure and test Centos Enterprise Linux as a server for your small business or enterprise. This site aims to be a supplement to wiki.centos.org and to comply 100% to official Centos best practices and advice designed to educate users and admins alike to get the most use out of the system through learning to use it correctly, as well as teach proper troubleshooting methodology. This site ascribes to the same philosophy as Centos.org: “Give a man a fish and he eats for a day, teach a man to fish and he eats for a lifetime”.

What is Centos?

  1. Centos is a free clone of Red Hat Enterprise Linux and aims to be 100% binary compatible with RHEL.
  2. Centos is a time-tested stable Linux distribution designed to run enterprise level servers.
  3. Centos has a 7 year lifecycle. Which means it will receive security updates, bug fixes and package enhancements for up to 7 years from the date of release.

Where do I download Centos?

  • Visit the official mirror list at: http://mirrors.kernel.org/centos/ to download the latest DVD, CD, PXE or network install images.
  • Read the documentation at: http://wiki.centos.org for in-depth documentation and detailed information about Centos.

How do I get support?

  • Try to solve the problem yourself first by checking the Centos wiki, Centos mailing lists, Google or this website.
  • See the Maximizing Help section here on this website for some proven methods of obtaining positive solutions to your problems.
  • Join Freenode IRC network and join the official Centos support channel at: #centos or feel free to chat about anything in #centos-social.
  • Read the Official Centos IRC rules of conduct before joining to familiarize yourself with how things are done.
  • Currently supported versions: 7.1.x, 6.7, 5.11
  • Currently NON-supported versions: 4.8, 3.9, 2.1 (EOL End-Of-Life)

Find out more about how to get involved

  • Do you think you have a howto, link, or other resource that should be included here?
  • Are you interested in creating howtos here?
  • Have you found an error or do you think something here should be removed, added or edited?
  • Send an email to: admin at centoshelp.org with a brief description of what you’re looking for or your questions or concerns.
  • Join the #centos IRC help channel and pitch in or just watch and learn.
centos7

Red Hat Certifications

Red Hat

  • Red Hat Certified System Administrator (RHCSA)
  • Red Hat Certified Engineer (RHCE)
  • Red Hat Certified Virtualization Administrator (RHCVA)
  • Red Hat Certified Datacenter Specialist (RHCDS)
  • Red Hat Certified Security Specialist (RHCSS)
  • Red Hat Certified Architect (RHCA)
Last Modified: 23 Apr, 2020 at 22:01:43


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