Appliances replace DNS, DHCP software

摘要

In 2004, the Slammer virus took the city of Houston by storm. The powerful, fast-spreading virus penetrated the Red Hat Linux servers running Berkeley Internet Name Domain software that handled naming resolution for the city's Web sites. The airport system, public library and health department were among the many city agencies whose Web sites suffered outages as a result of the virus. "The Slammer virus affected all the naming resolution pieces in the city," says Mark Whitt, IS administrator for the city's IT de-partment."We couldn't get the vulnerability under control. So we began looking for a device to reduce our vulnerabilities." (See related story, page 39.)