ronjor
August 6th, 2009, 09:45 PM
-{ Quote: "A number of Vietnamese spam sources are currently attracting attention because the spammers have equipped the relevant hosts with DNS pointer records called "localhost". As a result, IP addresses like 123.27.3.81, 222.252.80.188 or 123.16.13.188 produce this name when a reverse look-up occurs. The problem is caused by badly configured Domain Name Systems, as "localhost" should generally translate to a single IP address – 127.0.0.1 – which is reserved for local system loopback." }-The H Security (http://www.h-online.com/security/Naming-trick-opens-mail-servers--/news/113946)