Another option I have used in the past on platforms where I couldn't control the JVM settings was to randomize the capitalization of the host/domain name down in the app code. This was enough in older JVM's to cause String.equals() to fail and therefore, you would get a new IP. This has its limitations, but works for some cases.
----- Original Message ----- From: "Andrew C. Oliver" <[EMAIL PROTECTED]> To: <[EMAIL PROTECTED]> Sent: Sunday, June 01, 2003 4:26 PM Subject: Re: [Juglist] JVM caching of IP addresses > I'm not 100% sure but I know Michael Cannon-Brooks of Javablogs.com had this > problem: http://blogs.atlassian.com/rebelutionary/archives/000038.html > > I found this: http://java.sun.com/j2se/1.4.1/docs/guide/net/properties.html > > networkaddress.cache.ttl (default: -1) > Specified in java.security to > indicate the caching policy for successful name lookups from the name > service.. The value is specified as as integer to indicate the number of > seconds to cache the successful lookup. > > A value of -1 indicates "cache > forever". > > So it looks like you could set the java.security properties... > > On 6/1/03 3:56 PM, "Richard O. Hammer" <[EMAIL PROTECTED]> wrote: > > > I have a problem which leads me to believe that the JVM caches IP > > addresses for domain names. Can someone tell me if this is true, and > > if there is a way to turn it off? > > > > I am trying to open a Socket to a domain with a dynamically assigned > > IP address. After the IP address changed for the domain (with the JVM > > still running) my Java program can't find it. > > > > This is running on: > > Java(TM) 2 Runtime Environment, Standard Edition (build 1.4.0-b92) > > Java HotSpot(TM) Client VM (build 1.4.0-b92, mixed mode) > > > > Thank you, > > Rich Hammer > > > > > > _______________________________________________ > > Juglist mailing list > > [EMAIL PROTECTED] > > http://trijug.org/mailman/listinfo/juglist_trijug.org > > -- > Andrew C. Oliver > http://www.superlinksoftware.com/poi.jsp > Custom enhancements and Commercial Implementation for Jakarta POI > > http://jakarta.apache.org/poi > For Java and Excel, Got POI? > > > _______________________________________________ > Juglist mailing list > [EMAIL PROTECTED] > http://trijug.org/mailman/listinfo/juglist_trijug.org > _______________________________________________ Juglist mailing list [EMAIL PROTECTED] http://trijug.org/mailman/listinfo/juglist_trijug.org
