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Do I need to register with Red Hat to get Yum update? Is it possible to get an equivalent from CentOS?
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Do I need to register with Red Hat to get Yum update? Is it possible to get an equivalent from CentOS?

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Yes, to get updates from RH you need to be registered. With CentOS yum works without restrictions.
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Yes, to get updates from RH you need to be registered. With CentOS yum works without restrictions.

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Hi <br />
<br />
I have a HP Proliant DL380 G5 server which is running Red Hat Enterprise Linux 4 update 5. The server freezes about once every month or so and we cannot do anything but power cycle. It works OK for about another month or so and hangs again. The message logs do not provide any useful information. It is also not possible to run any sysrq commands as the server needs to be started up(immediately) to run production. <br />
<br />
Any suggestions will be appreciated.
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Hi 

I have a HP Proliant DL380 G5 server which is running Red Hat Enterprise Linux 4 update 5. The server freezes about once every month or so and we cannot do anything but power cycle. It works OK for about another month or so and hangs again. The message logs do not provide any useful information. It is also not possible to run any sysrq commands as the server needs to be started up(immediately) to run production. 

Any suggestions will be appreciated.

HP DL380 server hangs aproximately once every month.

A Linux distribution is an operating system made as a software collection based on the Linux kernel and, often, on a package management system and are available for a variety of systems. A typical Linux distribution comprises a Linux kernel, GNU tools and libraries, additional software, documentation, a window system (the most common being the X Window System), a window manager, and a desktop environment. Most Linux systems are open-source software made available both as compiled binaries and in source code form, allowing modifications to the original software. Over three hundred distributions are in active development, including commercially backed distributions (such as Fedora, openSUSE and Ubuntu) and community-driven distributions (such as Debian, Slackware, Gentoo and Arch Linux).

Linux Distributions

Servers are computing devices that are similar to desktop computers in that they have the same basic components, but are significantly different in size, configuration and purpose. Servers are usually accessed over a network, and many run unattended, without a computer monitor, input device, audio hardware or USB interfaces. Many servers do not have a graphical user interface (GUI), and are configured and managed remotely. Servers typically include hardware redundancy such as dual power supplies, RAID disk systems, and ECC memory, along with extensive pre-boot memory testing and verification. Critical components might be hot swappable, and to guard against overheating, servers might have more powerful fans or use water cooling.