topic Re: How to scan subnet for Ignite Server(s) in Operating System - HP-UX

How to scan subnet for Ignite Server(s)

Jim Small — Wed, 08 Aug 2001 19:49:53 GMT

Is there a way to quickly scan a subnet for Ignite Servers (either a full blown Ignite Server or a "Helper")?

For Sun JumpStart Servers, you can use the following command:
rpcinfo -b bootparam 1
(Which results in an immediate list of "Servers".)

I am hoping there is something similar you can do for HP Ignite Servers. I realize you can remsh to a client and parse files to check, but when you are talking about checking hundreds of clients per subnet, this is very slow. The Ignite Service uses ports 1067 and 1068 and appears to be similar to bootp/DHCP (ports 67 and 68). I suppose it might be possible to modify a bootp/DHCP client to scan for Ignite Servers if you had source code... This could be a lot of work though. I'd rather not invent the "wheel" if I don't half to. Does anyone have something to accomplish this?

Thanks,
--Jim

Re: How to scan subnet for Ignite Server(s)

Eileen Millen — Wed, 08 Aug 2001 20:02:15 GMT

man ignite
says that you can do
search lan install
after interrupting the boot

Eileen

Re: How to scan subnet for Ignite Server(s)

Jim Small — Wed, 08 Aug 2001 20:31:04 GMT

Eileen,

That's true, but I'm looking for a way to scan remotely. I don't want to have to power down a workstation to scan for Ignite Servers. I want to be able to telnet/rlogin to a workstation and run a command that will scan the subnet and report Ignite servers. I should have clarified this in my question.

Thanks,
--Jim

Re: How to scan subnet for Ignite Server(s)

James R. Ferguson — Wed, 08 Aug 2001 20:58:40 GMT

Hi Jim:

How about something as brutal as probing addresses (from a list) and issuing

# rpcinfo -n portnumber -u host program

...to see which entities have the program running.

...JRF...

Re: How to scan subnet for Ignite Server(s)

Jim Small — Wed, 08 Aug 2001 21:54:10 GMT

James,

That's an interesting idea, but unfortunately the Ignite service is not RPC based.

But the idea is what I want to do:
Broadcast a request on the subnet in question to port 1067 and listen for replies. I just don't know the utility to do this...

Re: How to scan subnet for Ignite Server(s)

Sundar_7 — Sun, 12 Aug 2001 10:39:24 GMT

Try if ""spray"" can help U out

or some ICMP sprayers that can be

downloaded from the Net

Sundar

Re: How to scan subnet for Ignite Server(s)

Jim Small — Tue, 21 Aug 2001 15:12:37 GMT

Sundar,

Ignite is not an RPC based service. Spray is to test RPC based services. I believe if I had a customizable utility to test DHCP, I could modify it to test Ignite-UX. DHCP/BOOTP operates on ports 67 and 68, whereas Ignite-UX operates on 1067 and 1068. If you could modify a DHCP/BOOTP utility (like bootpquery) you might be able to scan for ignite servers from the HP-UX command line (as opposed to the PDC prompt).

Is there a utility you could do this with or modify to do this???