Core Internet Services
The core Verio, Inc. Virtual Private Server system services include the following services
(or applications):

• HTTP (Web)
• FTP (file transfer)
• POP (e-mail)
• IMAP (e-mail)
• SMTP (e-mail)
• Shell access

Each of the services above is linked to your own domain name. Core services are complemented with the following utilities:

• iManager
• Microsoft® FrontPage® server extensions
• CGI scripts (customized for Verio, Inc.'s clients)

The Virtual Private Server environment also supports popular third-party applications sometimes called "contributed" programs.

Your Virtual Private Server comes with SSL. See page 145 for more information. With SSL encryption, your customers feel confident sending you their credit card information online because they are ensured of a secure transaction. Many other extensions, CGI scripts, Java applets, and popular third-party applications are also available.

Technical Details of the Virtual Private Server
Each physical server machine is partitioned into multiple Virtual Private Servers, and each Virtual Private Server has the following:

• IP address
• Domain name
• Web server (complete log and configuration files)
• FTP server
• POP server
• SMTP gateway

The Virtual Private Server is an isolated server environment that strongly resembles a dedicated UNIX machine. Each Virtual Private Server has a dedicated IP address, a hostname, resource allocations (disk space, memory, CPU share, processes, network, etc.), and a file system. Special tools provide a full UNIX file system inside your Virtual Private Server without significantly affecting your disk space.

Basically, the system works like this: Instead of copying the entire file system to your disk space, we have made transparent virtual links to the /skel directory, thereby conserving a large amount of disk space for you.

When you look inside the /skel directory, what appear to be directories are actually virtual links to them. If you modify any file or directory in /skel, the transparent link is replaced with a regular file that is written to your disk and counts against your disk space allocation.

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