JVM DNS cache flush

[Sideswipe]

I am told that the JVM maintains it's own DNS Caching and eschews the
OS cache for DNS.

Is that true?

If it is, then the follow-up question is how can I flush it?

I know I can set the TTL for the cache with a system property which
leads me to suspect I might be able to flush it as well.

Can anyone shed some light on this?

Christian
http://christian.bongiorno.org

 

[Gordon Beaton]

I am told that the JVM maintains it's own DNS Caching and eschews
the OS cache for DNS.

Is that true?

If it is, then the follow-up question is how can I flush it?

I know I can set the TTL for the cache with a system property which
leads me to suspect I might be able to flush it as well.

Have you not read the API documentation for InetAddress? Properties
networkaddress.cache.ttl and networkaddress.cache.negative.ttl are
described there.

/gordon

--

 

[Roedy Green]

If it is, then the follow-up question is how can I flush it?

I don't know if you can flush it, but you can control its time to
live.
see http://mindprod.com/jgloss/ip.html#OTHERIP

 

[Sideswipe]

Have you not read the API documentation for InetAddress? Properties
networkaddress.cache.ttl and networkaddress.cache.negative.ttl are
described there.

/gordon

--

My very post says I already know I can set the System properties on
the TTL.