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Linux Transfer for Network Admins

If you have a question about the technical contents of this book, please contact the author(s). Their email address(es) can usually be found in their bios in the About the Author section at the front of the book or on the author's bio page (click on the author's name on the book's main page.

Chapter 1 questions regarding hardware

I would like to know the best type of hardware to use for optimal performance. I am interested in such areas as:

Single vs Multi-Processor

There is no special advantage or disadvantage with respect to Linux and computers with different numbers of processors. If you use a multi-processor computer, be sure to use the Linux kernel related to SMP (shared memory multiprocessor).

Processor Choices

If you're using Red Hat Linux or Red Hat Enterprise Linux, you can review hardware at Be aware that you may be able to use more than just the certified hardware tested by Red Hat; for more inforation, see the Hardware-HOWTO at

How much RAM

First, there are minimums related to Red Hat and Red Hat Enterprise Linux. Generally 128MB and 256MB respectively are the minimums required for Red Hat Linux 9 and Red Hat Enterprise Linux 3 as a workstation. What you need as a server really depends on the number of users, and whether you're using this server for other purposes, such as a Web server, FTP server, etc.

Disk drive and RAID Controller options

Please refer to the hardware information described earlier.

Page 67

On the point 1 where it says "Insert the first CD into the drive...', according to RH Linux 9, samba-swat package is on the third CD, not the first.

Page 133 - Quotas

"Once the file is configured, it's easy to enable quotas. Just run the following command:

# /sbin/quotaon

I'm trying this on Fedora Core 2 - 2.6.9-1.6_FC2

When I enter the command above, it states:
"Bad number of arguments.
quotation: Usage:
quotaon [-guvp] [-F quotaformat] [-x state] -a
quotaon [-guvp] [-F quotaformat] [-x state] filesys ...

What arguments should be used?

Michael responds:

I missed the /home parameter here. In other words, in the context of this chapter, the command should be

# /sbin/quotaon /home

This activates quotas before the next reboot.

To continue, when I wrote "The next time you reboot Linux, it uses the settings you changed to find the quota files you created during this process," the boot process executes /etc/rc.sysinit, which runs the quotaon command on all applicable filesystems in /etc/fstab, i.e., those with usrquota and or grpquota defined.