Helpful links to official Centos resources, pastebins, 3rd party software repositories, tools and other topics of interest.
http://Centos.org : Official Centos Website
http://RedHat.com : Official Red Hat Website
http://FedoraProject.org : Official Fedora Website
http://pastebin.centos.org : code / error debugging
http://fpaste.org : code / error debugging
http://dpaste.com : code / error debugging
http://rafb.net/paste : code / error debugging
http://phpfi.com : code / error debugging
http://imageshack.us : screenshot/picture post
http://uploader.ws : screenshot/picture post
http://bayimg.com : screenshot/picture post
IRC (Internet Relay Chat)
For live help via chat on Freenode IRC (Internet Relay Chat) please connect to the official Freenode IRC network and follow the instructions for joining the #centos channel. Howto configure IRC
3rd Party Repositories
These are known safe repositories when used alone with default Centos repositories. They are safe to leave enabled and known to integrate well with Centos. Do not mix them together or with other repos or you will have conflicts eventually, pick one or the other.
RPMForge http://rpmforge.net Safe
EL5 i386 repo RPM (here)
EL5 x86_64 repo RPM (here) GPG Key (here)
EL4 i386 repo RPM (here)
EL4 x86_64 repo RPM (here) GPG Key (here)
Special Note: Make sure to use the yum-priorities plugin with this repo (yum install yum-priorities).
RHEL5 or compatible like Centos :
su -c rpm -Uvh http://download1.rpmfusion.org/free/el/updates/testing/5/i386/rpmfusion-free-release-5-0.1.noarch.rpm http://download1.rpmfusion.org/nonfree/el/updates/testing/5/i386/rpmfusion-nonfree-release-5-0.1.noarch.rpm’
Important notes :
You need to enable EPEL on RHEL5 or compatible distributions like Centos before you enable RPM Fusion for EL. See the fedoraproject wiki for instruction how to enable EPEL. The RPM Fusion for EL repositories are still in the early testing stages; hence you (for now) need to enable epel-testing as well, as some of the RPM Fusion packages depend on packages that are currently in epel-testing. All users that used Freshrpms or Livna installed properly (e.g. by installing one of their foo-release packages) got RPM Fusion free and nonfree repositories enabled automatically.
Use caution when using these repos and never mix them. Do not leave multiple 3rd party repos enabled and perform a yum update, core system packages or files may be inadvertently replaced or removed. Do not install source (tar.gz) packages, this will eventually lead to a broken yum or rpm, or worse. The system was designed to manage rpm packages via yum and rpm. The use of yum-priorities, exclude= (in your yum.conf file), –enablerepo= (when installing or searching with yum) are highly encouraged.
Web Security Tools Various security tools and web resources.
Security Focus – http//www.securityfocus.com/ Latest computer security news
Linux Security – http://www.linuxsecurity.com/ Linux security focused howtos and forums
Linux Sec – http://www.linux-sec.net/ Howtos and other resources aimed at server hardening
NSA SELinux – http://www.nsa.gov/selinux/NSA homepage on SELinux
Red Hat Security – http://www.redhat.com/security/Red Hat security resources
Art & Themes
Various themes, icons, backgrounds, login screens and other tools and resources for your graphical desktop environment.