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RHEL6 Beta: HowTo Use yum Command To Install Packages Without RHN

I‘m testing Redhat Enterprise Linux 6 for our apps. However, RHN do not support beta RHEL 6 software. How do I use yum command to install additional software without using DVD ROM?
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Sysadmin because even developers need heroes!!!

read_urandom: /dev/urandom: open failed: No such file or directory

My CentOS Linux based server failed to boot with the following error:

read_urandom: /dev/urandom: open failed: No such file or directory

How do I fix this problem?
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SUSE Linux: Install RPM File And Packages

Suse Linux is similar to RPM based Linux distro such as RHEL but does not comes with yum command. How do I install a rpm file or packages such as Apache or PHP under Suse Enterprise / OpenSuse Linux?
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CentOS / Redhat: Install KVM Virtualization Software

KVM (Kernel-based Virtual Machine) is a full virtualization solution for Linux on x86 hardware containing virtualization extensions Intel VT or AMD-V. How do I install KVM under CentOS or Red Hat Enterprise Linux version 5.5?
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HowTo: Update Centos Linux 5.4 to 5.5

CentOS Linux v5.5 has been released. How do I upgrade CentOS Linux from version 5.4 to latest version 5.5 over the Internet?
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HowTo: Upgrade Red Hat Enterprise Linux to v5.5

How do I upgrade to Redhat Enterprise Linux server to v.5.5 from 5.4 or earlier version?
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phpMyAdmin: Cannot load mysql extension. Please check your PHP configuration

I got new server and installed phpMyAdmin. But whenever I visit the phpmyadmin url it says:

Cannot load mysql extension. Please check your PHP configuration

How do I fix this problem under CentOS / RHEL / Fedora Linux Apache web server?
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Fedora Linux Install Linux Kernel Headers And Developer Files

I‘m trying to install vmware-tools but Fedora Linux v12 prompting for kernel headers. How do I install kernel headers under Fedora Linux?
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How To: Upgrade CentOS Linux 5.3 to v5.4

How do I upgrade CentOS Linux from version 5.3 to latest version 5.4 over the Internet?
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CentOS / Redhat: Protect Yum Repo's Packages

How do I protect my yum repo’s packages from certain repositories getting replaced / updated via yum command itself under CentOS / RHEL / Redhat Enterprise Linux?
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