On Saturday 12 February 2005 20:55, Bhaskar, K.S. wrote: > Just one more thought on production environments. If you look > at medieval fortresses, there is not just one line of defense.
Right. Build on high rock to keep out the sappers and miners. Shoot from the walls (crossbows for range and accuracy, longbows for massed fire) when they try to cross your moat with the drawbridge up. Behind that, porcullis, heavy barred door, "murder room" corridor, second heavy barred door--and that's just the outer wall, not even the keep. (The murder room is designed so you can't get the big battering ram in to attack the second door, and has holes in the ceiling for the defenders to shoot the attackers.) Safe against anything but treachery, years of siege (if you have a spring inside for water), or (in the end) cannon fire. > You should always have at least two different lines of > defense, even at home or a small business, and even if you > keep your operating system current with security patches. For > example, I have the cable modem at home connected to a WiFi > access point cum firewall & router, and I also run Shorewall > on the individual Linux PCs and Zone Alarm on the Win 98 box > the kids use for software that won't run on Linux. Even > within the home network, computers communicate via ssh > connections. > > -- Bhaskar Don't think that a UPS is sufficient. A company near here got shut down because of a gas leak, and wasn't permitted to fire up the diesel UPS, or even to stay inside long enough to send a warning to their customers. Critical systems need a two-site solution, minimum. "Embalm, cremate, and bury, and take no risks." -- Edward Cherlin, Simputer Evangelist Encore Technologies (S) Pte. Ltd. The Village Information Society http://cherlin.blogspot.com ------------------------------------------------------- SF email is sponsored by - The IT Product Guide Read honest & candid reviews on hundreds of IT Products from real users. Discover which products truly live up to the hype. Start reading now. http://ads.osdn.com/?ad_id=6595&alloc_id=14396&op=click _______________________________________________ Hardhats-members mailing list Hardhats-members@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/hardhats-members
