(Lack Of) Resilience Of WINS Registration

[Jean Francois Micouleau]

On Tue, 15 Jan 2002, Christopher R. Hertel wrote:

> - The WINS server *could* go through it's own list periodically and
>   "tickle" the clients to see if they're still there.  I don't know if
>   Microsoft does this, but if they do they would need to be working from
>   data contained in the WINS database.
>
>   [Does anyone know if WINS on NT actually does something like this?]

no WINS doesn't do that on NT.

> - The client is supposed to refresh it's registration before the
>   registration times out.  It seems that Microsoft clients perform this
>   periodic refresh frequently.  The timeout on the initial registration
>   is a little more than three days.  The RFCs would simply have them send
>   a refresh before the three days is up.
>
>   [Does anyone out there know how frequently Microsoft sends a refresh to
>   the NBNS?]

quotting a MS document:

"renewal interval: 4 days on NT 3.5, 6 days on NT4"

later in the same document:

"Minimum Renewal Interval
defined to be 40 min. The default is four days."

now go figure ...