Saliant of Features RHEL5:

1. 2.6x kernel (2.6.18)

            a. 'uname -a' returns OS/Kernel information

Note: 'uname -a' returns the following useful info:

             1. OS - Linux

             2. Fully Qualified Domain Name (FQDN)

             3. Kernel version - 2.6.18...

                         a. 2.6 = major version

                         b. .18 = minor version

                         c. anything else after the minor version indicates that the kernel was patched by the distributor

             4. Date and time that the kernel was compiled

2. Supports multiple versions:

  a. Basic - Red Hat Enterprise Linux Server

            a1. supports 2 physical (Socket) CPUs

            a2. Up to 4 virtual guests

  b. Advanced Platform

            b1. supports unlimited physical CPUs

            b2. supports unlimited virtual guests

Note: Virtualization limits pertain to the virtualization technology included with Red Hat Enterprise Linux. NOT third-party software (VMWare)

3. Supports the following platforms:

            a. Intel 32/64-bits

            b. AMD 32/64-bits

            c. IBM - POWER and z-series, S/390

Note: Memory limitation is based on hardware

Common uses of the various versions of RHEL

1. RHEL Basic Version

            a. File & Print

            b. Web server

            c. Infrastructure server (DHCP, DNS, Proxy, etc.)

 2. RHEL Advanced Version

            a. Application server (Apache Tomcat, JBOSS, Weblogic, WebSphere, etc.)

            b. Database server (MySQL, PostgreSQL, Oracle, Ingres, etc.)

            c. Clustering