> -----Original Message-----
> From: EMC NetWorker discussion
> [mailto:NETWORKER AT LISTSERV.TEMPLE DOT EDU] On Behalf Of George Sinclair
> Sent: Tuesday, October 20, 2009 11:06 AM
> To: NETWORKER AT LISTSERV.TEMPLE DOT EDU
> Subject: Re: [Networker] More NMC questions
>
> Tim Mooney wrote:
> > In regard to: [Networker] More NMC questions, George
> Sinclair said (at...:
> >
> >> 1. OK, I'm confused here over client versus server. Where
> they say: "...
> >> there is a prompt to download the JRE ...", where is the download
> >> location referring to? And should I download it?
> >
> > They're saying that when you connect up to the URL that gets you
> > access to your NMC, via a browser running on your desktop
> workstation,
> > if you don't have a JRE installed you will probably be
> prompted to download one.
>
> Thanks for your responses, Tim!!! This clear up a lot of confusion :).
>
> I have two additional question regarding the console server.
> I'm ignorant of JRE, but from what I can gather, this all
> assumes that a web server is running on the console server, correct?
>
> Question 1. In other words, the client machine must have JRE,
> but it must also be able to connect to a web server, running
> on the console server, which also has JRE?
The client machine must be able to run a web-browser such as IE or
Firefox...
When you connect to the machine running the NMC server via
HTTP://servername:9000 , it will detect if you have JRE installed, and
if not, it gets downloaded & installed, followed by the Java app that is
the Networker Management Console application (it will also prompt to put
a shortcut on your desktop to this java app for future use).
>
> Currently, there is no web server running on the test
> machine, but there is a /etc/init.d/httpd, and there is a
> FireFox binary. From page 95 of the installation guide it says:
>
> "10. Specify a User/Group with limited privileges that NMC
> will use to run the web server..."
>
> "11. For the web server port number, use the default port
> number (9000) or use a custom port number ..."
>
> Question 2. From that language, I assume that a web server
> must be running on the console server. Does the installation
> of the console server install the web server itself? Or does
> it assume that you already have a web server on that machine?
> If so, does it launch it, or do you have to already have it running?
The NMC server install includes an internal web server to provide the
initial connection... There is no need to install a separate
web-server...
>
> Thanks.
>
> George
>
> >
> > You can avoid this by making certain that any desktop workstations
> > that need to be able to access NMC and fire up NetWorker
> Administrator
> > already have the necessary JRE installed.
> >
> > NMC uses Java Web Start (javaws) to run a Java Network
> Launch Protocol
> > (.jnlp) file. The executable is downloaded and cached on your
> > workstation.
> >
> >> From the installation guide (page 39): "Although the
> Console client
> >> does not need to be installed separately, the JRE which
> includes Java
> >> Web Start must be installed in order to download and run
> the program
> >> properly. When connecting to the Console server for the
> first time,
> >> there is a prompt to download the JRE and the Console client
> >> application."
> >
> > You only get prompted to download the JRE if your browser
> doesn't know
> > what to do with jnlp files. If you have the JRE installed and your
> > browser has the right mime associations set up, javaws (Java Web
> > Start) should launch automatically.
> >
> > You will *not* be prompted to download the console
> application: that
> > will just happen. Java web start downloads and caches the
> application
> > automatically.
> >
> >> 2. Apparently, from what I've seen in poking around the archives,
> >> there's a stupid default password it assigns, so I have to
> set some
> >> environment variable and restart NMC in order to have it prompt me
> >> for a real password. That right?!
> >
> > We had to do that to reset the password once (possibly after an
> > upgrade), but I don't think that we did that initially. I'm pretty
> > foggy on those details though. It could very well be the
> way that you
> > have to reset the default administrator password.
> >
> > However, you can create additional accounts, so you don't
> need to use
> > the administrator account to do everything.
> >
> >> 3. How does NetWorker protect this password? Is it similar to
> >> standard Unix password encryption?
> >
> > I don't know the answer to that.
> >
> >> 4. What command do I run to launch the NMC once it's installed?
> >
> > You have two options.
> >
> > - The first time you run it and the recommended way is to point your
> > browser at the appropriate URL. It's probably going to
> be something
> > like
> >
> > http://your.networker.server:9000/
> >
> > Unless you used a different port from the default. You
> can find what
> > port you used by looking in /opt/lgtonmc/etc/gstd.conf
> >
> > If your browser on your workstation knows what to do with
> a jnlp file,
> > it will download the java-based application and launch
> it, via javaws
> > (Java Web Start).
> >
> > - Your other option is to actually save the .jnlp file that gets
> > downloaded and then just launch that whenever you want to run NMC.
> > That's what I do these days.
> >
> >> 5. Can you have more than one console server?
> >
> > Yes, but they don't share data.
> >
> >> Under 7.2.x, I could simply run nwadmin from any machine
> and at least
> >> monitor things (read-only), and then assuming that that
> machine and
> >> user where in the admin list, I could also make changes and/or
> >> perform operations. Ok, so do I now have to install NMC on every
> >> machine that I want to be able to monitor something from, or can I
> >> somehow install just the console client on those hosts?
> >
> > NMC isn't something you install on clients. You install it on a
> > server, and then connect to a URL with a browser and the
> bits you need
> > are automatically downloaded and launched if you have the
> appropriate
> > java bits on the workstation/client.
> >
> > If you need to do simple monitoring, I would recommend you just
> > connect to your NetWorker server or log in to any UNIX or
> Linux client
> > and run nsrwatch.
> >
> > Tim
>
>
> --
> George Sinclair
> Voice: (301) 713-3284 x210
> - The preceding message is personal and does not reflect any
> official or unofficial position of the United States
> Department of Commerce -
> - Any opinions expressed in this message are NOT those of the
> US Govt. -
>
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