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after i freshly installed a centos i was able to issue the command &quot;dhclient eth0&quot; and i was able to get an ip address from my dhcp server , now that i have edited the configuration of the ethernet adapter and enter in the line BOOTPROTO=dhcp and reboot i do not get an ip address <a href="https://filedb.experts-exchange.com/incoming/2011/09_w38/500872/Capture.PNG" target="_blank" title="ds (6 KB)"><img alt="ds" class="file-block lazyload" style="max-width: 583px;" data-src="https://filedb.experts-exchange.com/incoming/2011/09_w38/500872/Capture.PNG" /></a>
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after i freshly installed a centos i was able to issue the command "dhclient eth0" and i was able to get an ip address from my dhcp server , now that i have edited the configuration of the ethernet adapter and enter in the line BOOTPROTO=dhcp and reboot i do not get an ip address 

I can NOT get a DHCP address in centos

Unix is a multitasking, multi-user computer operating system originally developed in 1969 at Bell Labs. Today, it is a modern OS with many commercial flavors and licensees, including FreeBSD, Hewlett-Packard’s UX, IBM AIX and Apple Mac OS-X. Apart from its command-line interface, most UNIX variations support the standardized X Window System for GUIs, with the exception of the Mac OS, which uses a proprietary system.

Unix OS

The variety of Linux distributions creates myriad issues relating to configuration and operations when computers are networked, not the least of which is the use of various network management applications, some of which are included with specific distributions, while others are standalone applications.

Linux Networking

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).