Virtual Private Server User Guide

Internet and UNIX Basics

   He will not be able to receive technical support from us for anything related to 

his customized installation (anything Perl related, in this example) short of our 

staff returning his installation to our default one. 

The key to 3FS is the second filesystem displayed in the report returned by the df 

command. This filesystem is /usr/virtual/share, more commonly referred to as "the 

share":

127.0.0.1:/usr/virtual/share   2.8G   1.5G   1.1G   56%  /virtual/home/ip.add.re.ss/

usr/virtual/share

You cannot store files in /usr/virtual/share, but you can access its contents. The 

files in /usr/virtual/share do not take up space on your virtual disk. More 

information about this special filesystem is available in the section entitled "3FS   

Fast Flexible File Sharing" in the "Advanced Topics" section of this guide.

The third filesystem is the process filesystem. The programs that run on your 

virtual server use this special filesystem to keep track of their status. Most 

customers never need to access this area. In the report returned by the df 

command, the process filesystem appears like the example below:

procfs     4.0K   4.0K     0B   100%    /virtual/home/ip.add.re.ss/proc

If your VPS server ever needs to be moved to a different physical machine, your 

virtual disk is simply removed from its current location and installed to the new 

machine. 

The fourth filesystem is used to support user quotas. You should never directly 

modify files on this filesystem. Instead, use the tools described in the  Using User 

Quotas  portion of this guide. Please note this file system is very small, and if you 

did use it for your own files, it would cause the user quota system to cease 

functioning. An example of the quota filesystem entry follows:

/dev/vn70e   927K   33K   820K   4%  /virtual/home/ip.add.re.ss/quota

UNIX Basics

Note: This section is intended for customers who are new to UNIX, 

or for anyone who wishes to brush up on basic UNIX skills and 

concepts. If you are an experienced UNIX user or administrator, you 

may wish to skip ahead to the next chapter.

Your UNIX based operating system is a multi user operating system. This means 

that various users with various levels of access can connect to your VPS server 

simultaneously. Many different people will access the services that your VPS 

server provides, including Web site visitors, FTP and e mail users, customers to 

your online storefront, and so on. They do so with a client   a software program 

Technical Training Department

August 2004

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