RE: [nv-l] hostname changed

[Leslie Clark <lclark@us.ibm.com>]

As a 'best practice' tip in this subject,
I make it a practice to code the defualt 'set' community in Netview (in
the xnmsnmpconf dialog) to something bad like 'badCommunity'. This is to
prevent all users of the Motif interface from having access without knowing
the community.

If someone tries to use the mib browser
to do a set, and the default configured in Netview is valid, then the set
will work.  If you don't code a default 'set' community in xnmsnmpconf,
it tries the read community. Sometimes that is correct. I code it to something
else just to be sure. 

Cordially,

Leslie A. Clark
IBM Global Services - Systems Mgmt & Networking
Detroit

James Shanks/Raleigh/IBM@IBMUS
Sent by: owner-nv-l@lists.us.ibm.com

04/13/2004 11:53 AM

Please respond to
nv-l

To	nv-l@lists.us.ibm.com
cc
Subject	RE: [nv-l] hostname changed

You can do it as an operator, but NetView, that is, netmon does not do
it by itself.  Let's get clear about that. 

And as I indicated, there are several ways that a smart Cisco administrator
can disable this function altogether, and should. 

James Shanks
Level 3 Support  for Tivoli NetView for UNIX and Windows
Tivoli Software / IBM Software Group

"Federico Vidal" <fvidal@tecsystem.com.ar>
Sent by: owner-nv-l@lists.us.ibm.com

04/13/2004 02:55 PM

Please respond to
nv-l

To	<nv-l@lists.us.ibm.com>
cc
Subject	RE: [nv-l] hostname changed

Jean-Michel,

Yes, you can do it by SNMP.
Just verify that the SNMP agent on the device you want to change the hostname
is configured correctly to allow Netview to change the Hostname (sysName).

The SNMP variable that holds the hostname is mib-2.system.sysName.0 .
The SNMP Agent must have configured a RW community (and allow the Netview
IP to access the agent).
Netview must use this community name to issue a set request on the MIB
variable of the device.

Regards,

Federico Vidal
IBM Certified Deployment Professional
Tecsystem S.R.L.
e-mail: fvidal@tecsystem.com.ar
Tel: (5411)-4704-6667 ext. 109




-----Mensaje original-----
De: TURATI, JEAN-MICHEL [mailto:JEAN-MICHEL.TURATI@disney.com]
Enviado el: Tuesday, April 13, 2004 12:04 PM
Para: nv-l@lists.us.ibm.com
Asunto: [nv-l] hostname changed



Can Netview change a device's hostname on its own ? I don't mean in the
Netview database or on the map but on the device itself.
Network administrators believe Netview changes hostname in running config
of
some Cisco devices. I am rather doubtful.

Jean-Michel TURATI
Euro Disney SCA  Bâtiment Genie
BP 100  77777 Marne la Vallée Cedex 4
Tél: +(33).1.64.74.32.86 Fax: +(33).1.64.74.40.03