The Openfiler NAS/SAN Appliance (NSA) is a Storage Management Operating System / NAS Appliance distribution. It is powered by the Linux 2.6 kernel and Open Source applications such as Apache, Samba, LVM2, ext3, Linux NFS and iSCSI Enterprise Target. Openfiler combines these ubiquitous technologies into a small, easy to manage solution fronted by a powerful web-based management interface. Openfiler allows you to build a Network Attached Storage (NAS) and/or Storage Area Network (SAN) appliance, using industry-standard hardware, in less than 10 minutes of installation time.

Building upon the popularity of server virtualization technologies such as VMware, Virtual Iron, and Xen, Openfiler can also be deployed as a virtual machine instance or on  a bare metal machine.

This deployment flexibility of Openfiler ensures that storage administrators are able to make the best use of system performance and storage capacity resources when allocating and managing networked storage in a multi-platform environment.

Openfiler is ideally suited for use with High Availability Recital applications as it incorporates:

• Heartbeat cluster manager
• drbd disk replication
• CIFS
• NFS
• Software and hardware RAID
• FTP
• rsync
• HTTP/DAV
• iSCSI
• LVM2
• Multiple NIC bonding for High Availability
• Powerful web-based GUI

Here is a simple shell script to copy your ssh authorization key to a remote machine so that you can run ssh and scp without having to repeatedly login.

#!/bin/sh
# save in file ssh_copykeyto.sh then chmod +x ssh_copykeyto.sh
KEY="$HOME/.ssh/id_rsa.pub"
if [ ! -f ~/.ssh/id_rsa.pub ];then
    echo "private key not found at $KEY"
    echo "create it with "ssh-keygen -t rsa" before running this script
    exit
fi
if [ -z $1 ];then
    echo "Bad args: specify user@host as the first argument to this script"
    exit
fi
echo "Copying ssh authorization key to $1... "
KEYCODE=`cat $KEY`
ssh -q $1 "mkdir ~/.ssh 2>/dev/null; chmod 700 ~/.ssh; echo "$KEYCODE" >> ~/.ssh/authorized_keys; \
chmod 644 ~/.ssh/authorized_keys"
echo "done!"

Recital is a dynamic programming language with an embedded high performance database engine particularly well suited for the development and deployment of high transaction throughput applications.

The Recital database engine is not a standalone process with which the application program communicates. Instead, the Recital database is an integral part of any applications developed in Recital. 

Recital implements most of the SQL-99 standard for SQL, but also provides lower level navigational data access for performing high transaction throughput. It is the choice of the application developer whether to use SQL, navigational data access, or a combination of both depending upon the type of application being developed.

The Recital database engine, although operating as an embedded database in the user process, multiple users and other background processes may access the same data concurrently. Read accesses are satisfied in parallel. Recital uses automatic record level locking when performing database updates. This provides for a high degree of database concurrency and superior application performance and differentiates the Recital database from other embeddable databases such as sqlite that locks the entire database file during writing. 

Key features of the Recital scripting language include:

• High performance database application scripting language
• Modern object-oriented language features
• Easy to learn, easy to use
• Fast, just-in-time compiled
• Loosely-typed
• Garbage collected
• Static arrays, Associative arrays and objects
• Develop desktop or web applications
• Cross-platform support
• Extensive built-in functions
• Superb built-in SQL command integration
• Navigational data access for the most demanding applications
• Scripting  language is upward compatible with FoxPRO

Key features of the Recital database include:

• A broad subset of ANSI SQL 99, as well as extensions
• Cross-platform support
• Stored procedures
• Triggers
• Cursors
• Updatable Views
• System Tables
• Query caching
• Sub-SELECTs (i.e. nested SELECTs)
• Embedded database library
• Fault tolerant clustering support
• Chronological data versioning with database timelines
• Optional DES3 encrypted data
• Hot backup
• Client drivers for ODBC, JDBC and .NET