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 On the Internet security
is a great concern. Since Radioactive Networks runs it's own servers, it
was important that we had a good firewall. Originally the firewall consisted
of firewall rules on the main Radioactive Networks server. But over time
the number of attacks on our machines have increased to the point where
we needed a dedicated server to maintain security.
 Following
investigations we found a company that could provide hardware for the firewall
that would allow it to be mounted inside a 1U rack case. Acrosser (http://www.acrosser.com/products/ar-b1550.htm)
of Taiwan was able to supply an embedded processor board with CPU and three
100 MBit Ethernet ports for just over US$250. The 300 MHz CPU runs at approximately
280 BogoMIPS under Linux, so is not as fast as the clock speed would suggest
but it is not bad. The board has a PC-104 form factor allowing other cards
to be stacked.
 Running on this
board is a Linux distribution from a German company called Astaro ( http://www.astaro.com
). Astaro Security Linux is an integrated firewall application built on
the Lunux Operating System. Since it is based on Linux, Astaro can be extended
to offer additional feaures that the original designers never thought of.
Although not supported by Astaro, it is hoped many of these features will
eventually make it into the main Astaro distribution.
Radioactive Networks has added functionality to Astaro in the way of
PPP access through a modem connection to the Internet, and integrating
the Snort intrusion detection software.
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Copyright © 1994-2005
Radioactive Networks ,
darryl@radio-active.net.au
This page was last updated 2005-11-15 16:25:33
This page was last compiled 2005-11-15 19:01:41
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