Net addresses and Applets?

Is it at all possible to query whether a certain web site is availble via an applet. I have been trying numerous ways (URL, URLConnection, HttpURLConnection, and even INETAddress) but always seem to get security errors.
I do understand that applets have very (and understandable) security restrictions, but all I need is in effect a "ping" applet, to acknowledge whether or not a web site (IP Address) is available or not...
Does anyone have any advise, it would be greatly appreciated!
James.

James
I suspect that the security sandbox will stop any attempt by an unsigned applet to communicate with web servers other than the one your applet is hosted from.
Your options depend on which version of Java your are using (and which browser you want to support).
Using Java 2, you can either
1) Sign the applet using an RSA certificate from a commercial provider - this will allow anyone with the plug-in to run your applet easily.
2) Change your policy file settings - this is too fiddly for "off the street" users, but will allow you to test your applet. If you search the forum for "policytool" you will find instructions.
Using Java 1.x you can sign the applet in various ways, or use the Netscape Capabilities API (not sure about the name) to work around the security settings with Netscape users.
That probably isn't what you wanted to hear, but hope it is helpful
Regards
Matthew

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http://www.metageek.net/support/downloads/
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Message was edited by:
mohan_sr

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