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Reverse Resolution of IP Addresses with AJAX

One of the things that came up recently at work is a way to resolve IP addresses to hostnames client-side without any server calls. Here are some of the possibilites that I thought off :

o Using Javascript to call Java’s java.net.InetAddress class to resolve (only works in Mozilla and Opera, needs security permissions)
o Using a Java Applet calling the same class and accessing it via JavaScript / LiveConnect (works in IE also, needs a signed applet)
o Using XUL (Mozilla only, only hostname to IP)
o Trying to call Flash via this bridge (needs a flash movie)

So the bottom line is that it is not possible without a server side process or a signed applet.

Tags: ajax, java, javascript, microsoft, mozilla, opera —

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