UDPCast is software that uses multicast over UDP to copy the contents of a computer's hard drive (seed host) to other computers on a network. It allows administrators to easily install and maintain the same software and operating system configuration on multiple computers, such as in a school computer lab. The imaging process involves preparing the hosts, installing software on the seed host, and using sender and receiver processes to transfer the contents over the network from the seed host to the other hosts using multicast UDP packets.

1. UDPCast Imaging Solution
*RLUG Lightning Talk *
Alexandru Juncu
alex.juncu@rosedu.org
14.04.2011

2. System Imaging
• Software that copies HDD contents from
one computer to others
• Offers scalability to administration of
computer rooms (eg. School
Laboratories)
• Takes advantage of UDP and Multicast
• Uses a Seed Host to distribuite contents
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3. Imaging Process
1. Prepare hosts for imaging (physical
network conectivity)
2. Install Operating System(s) and needed
applications on the Seed Host
3. Start the sender process on the Seed and
the receiver process on the other hosts
4. Transfer the contents over ther network
S R R R
VOID VOID VOID VOID
Multicast
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4. UDP Cast
• Open Source Project
• http://udpcast.linux.lu/
• udp-sender and udp-receiver
– (S) cat /dev/sda | udp-sender
– (R) udp-receiver > /dev/sda
• Utilities
– LiveCD for imaging
– cast-o-matic
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