First... I'm talking about the NT version. I don't know about the
UNIX version.
The out-of-the-box function is to only do port-checks.
When you startup nvsniffer manually, you can specify the "-r" switch.
This submits it as a batch job to re-run itself every -r minutes.
You can write a DLL, or you can specify a script. I usually specify
a perl script to be executed. This is done with the "-c \path\command"
switch.
You can also specify a timeout value "-T nn", and the number of threads
to run "-t n". I usually default the timeout, but limit the number of
threads (since the default is 50).
If you type "nvsniffer -h" (assuming path-variable is set) you will
get a list of nvsniffer options.
Regards,
Gary Boyles (Intel)
-----Original Message-----
From: Xu He [mailto:xuhe@YAHOO.COM]
Sent: Thursday, May 13, 1999 5:41 AM
To: NV-L@UCSBVM.UCSB.EDU
Subject: Re: nvsniffer
I think by default nvsniffer is simply a TCP port scanner, tell me if I
am wrong. It pings the port to see if it exist, then it adds it to the
database. I use it to discover services or applications where I know
exactly which TCP port it uses. If you application uses dynamic port as
some I have seen, I have to write a custom .DLL to detect them. I
found nvsniffer most useful during initial discovery. I found the
status check function to be somewhat inacurate, by default it checks
once every hour on the NT version. When a service goes Down, you have
to wait an hour before the system will try it again. If there's a easy
to launch nvsniffer against a particular service on demand, it may be
more helpful.
Xu He
Network Solutions, Inc
--- Don Davis <don-n-darla@WORLDNET.ATT.NET> wrote:
> Has anyone used the nvsniffer command
> successfully???
> I have not been able to make it function properly.
>
> It discovers all services on all nodes whether it
> actually is present or not!
>
>
> --
> ======================================================
>
> Don Davis - Instructor / Consultant
> Alliance Of Professionals and Consultants, Inc.
> Phone: 919-847-6056 Pager: 800-759-8888 PIN:
> 1462396
> Visit our Web site at: http://www.apc-services.com
>
_________________________________________________________
Do You Yahoo!?
Free instant messaging and more at http://messenger.yahoo.com
|