* 1000 lb. capacity
* Lifting heights - 62" & 74"
* Forks adjust from 6 1/2" to 20" O.D. between the wheels
* 15 1/2" high fork backs
* Built-in 10 amp tapering battery charger
* 1" thick x 3" wide adjustable solid steel forks
* 13" & 15" load centers
* Lifting speed 5" per second
* Foot operated floor lock
* No outriggers
* Heavy-duty 12 volt deep cycle battery

Editorial: Most server lifts have either annoying struts in the front that prevent you from going right up to the rack or are very expensive ($6500+). This is a novel model that allows you to go right up to a rack. Imagine you have a Sun X4500 that you want to slide right into the rails. This unit would allow you to slide it right into the rails in contrast to most where the struts on the bottom will get in a the way. It comes in various capacities from 200lb to 1500lb. The center of gravity is close to the back of the forks, so to compensate for this get one with a higher capacity than the gear you are lifting to adjust the center of gravity out on the fork. A 600lb unit should easily be able to handle a 200lb X4500. In addition, the price is about 1/3 of the typical 'server branded lifts' you will find. On the downside, while it comes with a tray to put over the forks, it is not ESD coated. This can be compensated by adding a sheet of ESD material on top of the tray.

The main goals of Falcon are to exploit large memory for more than just a bigger cache, to use threads and processors for data migration.

You can find a video-presentation on Falcon in the MySQL_Tutorials category.

What is Falcon

• transactional MySQL storage engine
• based on Netfrastructure database engine
• engine has been in mission critical apps for more than 4 years
• extended and integrated into MySQL

Falcon is NOT

• an InnoDB clone
• Firebird
• a Firebird clone
• a standalone database management system
• Netfrastructure

IPVS (IP Virtual Server) implements transport-layer load balancing inside the Linux kernel, so called Layer-4 switching. IPVS running on a host acts as a load balancer at the front of a cluster of real servers, it can direct requests for TCP/UDP based services to the real servers, and makes services of the real servers to appear as a virtual service on a single IP address.

IPVS is commonly used for DNS load balancing as well as other things.

Not a tool, per se, but a recommended site for getting built-to-length cables of various sorts and colors.

Inkscape supports many advanced SVG features (markers, clones, alpha blending, etc.) and great care is taken in designing a streamlined interface. It is very easy to edit nodes, perform complex path operations, trace bitmaps and much more. We also aim to maintain a thriving user and developer community by using open, community-oriented development.

because it is SVG compatible, you can display it in firefox which makes it very cross-platform. It doesn't have nearly as many stencils as Visio, though.

OSSIM stands for Open Source Security Information Management and compiles more than 15 open source security programs providing all the technology levels to cover the full Security Management cycle.

The OSSIM Sensors integrate powerful open source technology for:

Attack Detection using Snort IDS for real time detection
Vulnerability Scanning using Nessus Vulnerability Scanner
Network Monitoring and Profiling thanks to Ntop
Anomaly Detection with spade, RRD aberrant-behaviour, arpwatch, pads and p0f

The main goal of the keepalived project is to add a strong & robust keepalive facility to the Linux Virtual Server project. This project is written in C with multilayer TCP/IP stack checks. Keepalived implements a framework based on three family checks : Layer3, Layer4 & Layer5/7. This framework gives the daemon the ability of checking a LVS server pool states. When one of the server of the LVS server pool is down, keepalived informs the linux kernel via a setsockopt call to remove this server entrie from the LVS topology. In addition keepalived implements an independent VRRPv2 stack to handle director failover. So in short keepalived is a userspace daemon for LVS cluster nodes healthchecks and LVS directors failover.

VRRP is the virtual router redundancy protocol. VRRP is an IETF WG product described at http://www.ietf.org/html.charters/vrrp-charter.html. Excerpt:

A virtual router redundancy protocol is a protocol which allows several
routers on a multiaccess link to utilize the same virtual IP address.
One router will be elected as a master with the other routers acting as
backups in case of the failure of the master router. The primary
motivation to using a virtual router redundancy protocol is that host
systems may be configured (manually or via DHCP) with a single default
gateway, rather than running an active routing protocol. The protocol
should also support the ability to load share traffic when both routers
are up.

Linux-HA aka Heartbeat is a modular package to control high-availability clustering. In spite of it's name it is not limited to Linux (although that is the primary platform), It has an automake based compile and has been used on *BSD, Solaris, and to some extent on AIX as well.

It can hearbeat in multiple ways (UDP broadcast, multicast, and unicast as well as over serial ports, although the serial port heartbeat has been accidently broken in some versions), and over multiple channels (up to 32 as of the time of writing)

It can support sub-second failover

It delays heartbeat checking on initial boot to allow switches time to get through their spanning tree detection timeouts.

Since disk drives are cheap, backup should be cheap too. Of course it does not help to mirror your data by adding more disks to your own computer because a virus, fire, flood, power surge, robbery, etc. could still wipe out your local data center. Instead, you should give your files to peers (and in return store their files) so that if a catastrophe strikes your area, you can recover data from surviving peers. The Distributed Internet Backup System (DIBS) is designed to implement this vision.

Note that DIBS is a backup system not a file sharing system like Napster, Gnutella, Kazaa, etc. In fact, DIBS encrypts all data transmissions so that the peers you trade files with can not access your data.