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iServer Virtual Server Technology
iServer was founded to provide small to medium sized businesses
an affordable Internet presence solution without compromising
power, flexibility, and control. Because a dedicated server
solution is far too expensive and resource intensive for these
businesses, we innovated and pioneered Virtual Server technology.
This technology enables us to "multiplex" or partition a single
physical server into a system of multiple virtual machines.
This allows several small to medium sized business to distribute
the cost of the hardware, software, system maintenance, and network
connectivity (bandwidth) without losing the power, control, and
flexibility they would enjoy with a dedicated solution.
Our Virtual Server System requires the latest in hardware
components and the fastest network connectivity coupled with
innovative software, remote administration, and security solutions.
A detailed presentation of these facets, each an integral part of
iServer's Virtual Server Technology, is given below.
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| CPU |
400 MHz Pentium II |
| CPU Speed |
SPECint95 = 15.8¹ |
| Operating System |
Unix BSDI BSD/OS 3.1 |
| Main Memory |
256 MB 50 ns ECC Viking memory |
| Disk Technology |
Two high speed "Ultra SCSI 2"
disk I/O channels |
| Disk Volumes |
6 GB System Volume, 9 GB User Volume,
9 GB Live Mirror of User Volume |
| Data Backup |
Triple backup of data provided:
1) Live mirror of User Volume on
secondary drive,
2) Compressed archive stored on System Volume,
3) Digital tape archive |
| Network Card |
Connected to Cisco 5500 switch via dedicated,
full-duplex DEC 10/100 Mbps Ethernet |
| Power Backup |
Liebert UPS with 1 hour battery, backed up
by a 250kW Onan/Cummins diesel generator with
36 hours of fuel |
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| Router Core |
Cisco 7500's - equipped with redundant
power supplies on redundant UPS's and
redundant route processors. Spare parts
on hand - backplane, interface boards,
and power supply |
| Server LAN Connections |
Cisco 5500 High-speed Ethernet switches
(96 Full-duplex 10 Mbps ports each)
equipped with redundant power supplies
and redundant route processors. |
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Backbone Connections |
| Orem Facility |
Redundant 100 Mbps connections |
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Internet Connections |
| Orem Facility |
2 Verio OC3s
(OC3 = 155.52 Mbps)
1 Sprint DS3 |
| Keynote Rating |
Keynote Systems consistently rates Verio's
network as one of the fastest available.
See the results. |
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| Web Server Software |
The iServer
build of Apache 1.2.6.
Each Virtual Server comes with
complete set of config files
(http.conf, srm.conf, access.conf,
mime.types), cgi-bin, and log files |
| FTP Server |
Anonymous FTP, Multi-user FTP with file
system quotas, "directory" messages,
"welcome" messages, anti-warez features,
and user secure directories |
| POP Server |
create unlimited POP3 e-mail accounts |
| IMAP Server |
create unlimited IMAP e-mail accounts |
| SMTP Gateway |
Each Virtual Server comes with its own
sendmail.cf and aliases file. Full support
for autoreplies and mail lists.
Anti-spam features included |
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| Remote Site Administration |
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| Server Administration |
All physical servers are administered
from corporate headquarters. On-site
facilities manager performs necessary
hardware installation and replacement |
| Remote Console Connections |
Allows technical and support staff
to login to the console of a physical
server from its "buddy". Invaluable
tool used for diagnostics and repair |
| Remote Monitoring |
iServer own custom control hardware
design for monitoring and controlling
devices: routers, switches, power strips,
CSU/DSUs, and UPSs |
| Paging System |
Support staff members are immediately paged
when a problem is detected |
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| Security Hardened |
All known security patches are applied
as soon as they are released (or even
before they are released) by OS vendor |
| Insecure Programs |
Potentially insecure (suid) programs
are removed or disabled if not needed
on system. Necessary potentially insecure
programs are compiled with runtime,
bounds checking are reviewed for
security problems |
| Hacking Alert System |
iServer has created a custom Hacking
Alert System (HAS) which immediately pages
systems administrators |
| Paging System |
Support staff members are immediately notified
when a problem is detected |
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¹ - Check out our SPEC
description page for the complete explanation of SPECint95.
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